EP0322584A2 - Rondelle de contact pour conducteurs électriques - Google Patents

Rondelle de contact pour conducteurs électriques Download PDF

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Publication number
EP0322584A2
EP0322584A2 EP88119969A EP88119969A EP0322584A2 EP 0322584 A2 EP0322584 A2 EP 0322584A2 EP 88119969 A EP88119969 A EP 88119969A EP 88119969 A EP88119969 A EP 88119969A EP 0322584 A2 EP0322584 A2 EP 0322584A2
Authority
EP
European Patent Office
Prior art keywords
clamping
steps
inner edges
contact disc
curvature
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
EP88119969A
Other languages
German (de)
English (en)
Other versions
EP0322584B1 (fr
EP0322584A3 (en
Inventor
Werner Cordt
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.)
E Winkemann & Co KG GmbH
Original Assignee
E Winkemann & 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 E Winkemann & Co KG GmbH filed Critical E Winkemann & Co KG GmbH
Publication of EP0322584A2 publication Critical patent/EP0322584A2/fr
Publication of EP0322584A3 publication Critical patent/EP0322584A3/de
Application granted granted Critical
Publication of EP0322584B1 publication Critical patent/EP0322584B1/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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw

Definitions

  • the invention relates to a connecting disk for electrical conductor wires, the rectangular connecting disk having a transverse curvature and a central passage for the connecting screw.
  • Such terminal washers are used to connect one or more conductor wires.
  • the connecting washer is made of a metal, also a non-ferrous metal, and its shape is intended to provide maximum security, in particular long-term security of the electrical connection. Unintentional disconnection should be switched off. The pressure force for the conductor connection should remain unchanged for a long time.
  • a common embodiment of such a connecting washer is described in DIN 46288.
  • the clamping surfaces of this connecting washer are flat.
  • Special designs with embossed beads are problematic because the high deformation when embossing the beads can destroy the metal structure, so that the connecting disk can break later.
  • the beads with their comparatively coarse profile result in poor clamping, because the contact with the conductor may only be punctiform.
  • the object of the invention is to increase the security against jamming and to ensure the permanent clamping effect on an end plate of the type described.
  • embossing steps are provided in the corner areas, the inner edges of which are pressed against the axis of curvature, that the distance between the inner edges of the embossing steps is smaller than the diameter of the shaft of the connection is screw and that the clamping surfaces of the embossing steps have a corrugation.
  • the invention differs from the prior art in that the embossing steps ensure flat clamping.
  • the embossing steps are almost flat and aligned with each other, so that even thin conductor wires can be securely clamped.
  • the embossing steps also prevent a guide wire from being pushed away in the area of the shaft of the connecting screw and from receiving no clamping force.
  • the strongly arched upper side ensures that the connecting disk is adjusted to different diameters of the conductor wires.
  • the embossing steps make it easier to insert the conductor wires.
  • the corrugation increases the clamping effect.
  • a secure and permanent clamping is achieved in that the clamping surfaces of the embossing stages have a flatter curvature than the connecting disk. So you combine the advantage of a flat clamping surface with the advantage of an automatic adjustment of the curved top of the connecting disc to different thicknesses of the conductor wires.
  • a connecting disk 1 is an embossed part made of a rectangular blank, as can be seen in particular in FIG. 3.
  • the connecting disk has a central passage 2 for a connecting screw 3.
  • the connecting disc 1 has a transverse curvature, that is, a curvature perpendicular to the long side.
  • the connecting washer is not curved in the longitudinal direction.
  • the four corner areas have embossing steps 4, the inner edges 5 of the embossing steps 4 being pressed in against the curvature axis. It is thereby achieved that the clamping surfaces 6 of the embossing stages have a flatter curvature than the connecting disk as a whole, as can be seen in particular from FIG. 1. In addition, the clamping surfaces are 6th roughened by corrugation 7, as can be seen from FIG. 6. The distance between the inner edges 5 of the embossing steps 4 is smaller than the diameter of the shaft 8 of a connecting screw 3.
  • FIG. 4 shows the use of the connecting disk 1 for clamping a conductor wire 9.
  • FIG. 5 shows the use of the connecting disk for clamping conductor wires 9 and 10 of different diameters. It can be seen that the connecting disk is always inclined to the required extent. This is possible due to the fact that the transversely curved connecting disk is adjusted relative to the shaft 8 of the connecting screw 3. The clamping surfaces always protrude into the area of the shaft of the connecting screw 3. As a result, the conductor wires 9 and 10 are always between the clamping surface and a connecting leg 11.
  • the corrugation 7 ensures a secure and flat clamping.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP19880119969 1987-12-24 1988-11-30 Rondelle de contact pour conducteurs électriques Expired - Lifetime EP0322584B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8716943U 1987-12-24
DE8716943U DE8716943U1 (de) 1987-12-24 1987-12-24 Anschlußscheibe für elektrische Leiterdrähte

Publications (3)

Publication Number Publication Date
EP0322584A2 true EP0322584A2 (fr) 1989-07-05
EP0322584A3 EP0322584A3 (en) 1990-05-09
EP0322584B1 EP0322584B1 (fr) 1995-02-01

Family

ID=6815454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880119969 Expired - Lifetime EP0322584B1 (fr) 1987-12-24 1988-11-30 Rondelle de contact pour conducteurs électriques

Country Status (2)

Country Link
EP (1) EP0322584B1 (fr)
DE (1) DE8716943U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9003514U1 (de) * 1990-03-26 1991-08-01 Siemens AG, 8000 München Elektrische Anschlußscheibe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372366A (en) * 1966-10-24 1968-03-05 Fastron Co Fastening device
US4310214A (en) * 1980-03-21 1982-01-12 Carlson William R Tiltable terminal clamp assembly
CH640086A5 (en) * 1979-01-24 1983-12-15 Feller Ag Method for producing a terminal claw for an electrical connecting terminal and terminal claw

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372366A (en) * 1966-10-24 1968-03-05 Fastron Co Fastening device
CH640086A5 (en) * 1979-01-24 1983-12-15 Feller Ag Method for producing a terminal claw for an electrical connecting terminal and terminal claw
US4310214A (en) * 1980-03-21 1982-01-12 Carlson William R Tiltable terminal clamp assembly

Also Published As

Publication number Publication date
EP0322584B1 (fr) 1995-02-01
DE8716943U1 (de) 1988-02-11
EP0322584A3 (en) 1990-05-09

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