EP1926178B1 - Borne de connexion pour conducteur électrique et son procédé de fabrication - Google Patents

Borne de connexion pour conducteur électrique et son procédé de fabrication Download PDF

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Publication number
EP1926178B1
EP1926178B1 EP06024390A EP06024390A EP1926178B1 EP 1926178 B1 EP1926178 B1 EP 1926178B1 EP 06024390 A EP06024390 A EP 06024390A EP 06024390 A EP06024390 A EP 06024390A EP 1926178 B1 EP1926178 B1 EP 1926178B1
Authority
EP
European Patent Office
Prior art keywords
upper wall
wall sections
clamping piece
wall section
side wall
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.)
Ceased
Application number
EP06024390A
Other languages
German (de)
English (en)
Other versions
EP1926178A1 (fr
Inventor
Jürgen Feye-Hohmann
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Priority to EP06024390A priority Critical patent/EP1926178B1/fr
Priority to DE502006003840T priority patent/DE502006003840D1/de
Publication of EP1926178A1 publication Critical patent/EP1926178A1/fr
Application granted granted Critical
Publication of EP1926178B1 publication Critical patent/EP1926178B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/30—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/063—Friction heat forging
    • B21J5/066—Flow drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • B21K25/005—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components by friction heat forging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a clamping sleeve for electrical conductors according to the preamble of claim 1.
  • the invention according to the preamble of claim 7 relates to a method for producing the clamping sleeve.
  • Electrical connection terminals in particular terminal blocks, have an insulating housing with, for example, designed as Switzerlandfeder-, direct-, cutting or Schaub connection terminals for clamping and contacting of electrical conductors.
  • Electrical connection terminals with screw connection are characterized by their high clamping forces that can be continuously transmitted to electrical conductors over the years. With this type of terminal predetermined high clamping forces can be maintained without fluctuations even when acting on the electrical terminal vibration. Due to these properties, electrical connection terminals with screw connection are also preferred in demanding industrial applications with moving and oscillating machine parts.
  • An electrical connection terminal with screw connection comprises a clamping sleeve mounted in the insulating housing and formed by electrically conductive wall sections and having a receiving space for an electrical conductor.
  • One of the wall sections contains at least one guided into the receiving space threaded hole, each with a screw inserted. Your screw head is accessible via an opening provided in the insulating housing mounting opening so that the screw can be rotated with its tip into the receiving space and can clamp an electrical conductor inserted therein.
  • Such electrical terminals with clamping sleeves and screw are, for example, from the DE 295 22 146 U1 , of the DE 30 03 140 A1 , of the US 2,885,654 known.
  • the largest influencing factor on the transferable clamping forces is the axial length of the threaded hole, which corresponds to the sheet thickness.
  • Remedy here creates a from the DE 195 46 889 A1 known clamping sleeve.
  • the known clamping sleeve comprises a U-shaped wall portion of a bent sheet metal part with a bottom wall portion and two adjoining side wall portions with provided at their upper ends notches for receiving a separate insert it a central threaded hole.
  • the insert has a greater material thickness than the sheet metal part.
  • the length of the axial threaded hole corresponds to the material thickness of the insert and thus can be easily adapted to this.
  • a major disadvantage of this design is considered that the clamping sleeve is multi-part and thus several tools are necessary for their production and the manufacturing costs are correspondingly high.
  • a well-known alternative solution provides for extending the axial thread length a threaded bore with a projecting beyond the sheet approach. The additional length of the threaded hole results from the axial length of the neck. Such a threaded hole can, for example. By punching the sheet metal part followed by thermoforming Tools are necessary for their production and the manufacturing costs are correspondingly high.
  • a well-known alternative solution provides for extending the axial thread length a threaded bore with a projecting beyond the sheet approach. The additional length of the threaded hole results from the axial length of the neck. Such a threaded hole can be achieved, for example, by punching the sheet-metal bent part followed by a deep-drawing process. This production is time-consuming and expensive due to the numerous process steps.
  • the clamping sleeve for electrical conductors consists of a frame-shaped, electrically conductive sheet metal bent part with an upper wall portion and an associated approximately U-shaped lower wall portion. This comprises a bottom wall section with a first side wall section and second side wall sections adjoining thereto.
  • the threaded hole produced by flow molding with their collar-shaped projections is formed on the outer sides of the upper wall portion.
  • the length of the threaded bore has been increased in accordance with the axial length of the collar-shaped projections relative to the plate thickness of the upper wall portion.
  • the clamping sleeve is integrally formed and can thus be manufactured inexpensively.
  • the invention has for its object to disclose a clamping sleeve with threaded hole, with the even higher clamping forces can be transmitted to clamped to electrical conductors.
  • the invention solves the problem by a clamping sleeve with the features of claim 1.
  • the clamping sleeve according to the invention according to claim 1 comprises a Sheet metal bending part with an upper wall portion and a first side wall portion and second side wall portion connected thereto.
  • the axial length of the threaded hole has been lengthened by providing two upper wall sections arranged one above the other and each deflected by the two side wall sections, with the threaded hole passing through the two upper wall sections is and connects them mechanically.
  • the threaded hole is produced by flow molding technology, so that the two upper wall sections are connected to one another mechanically by the material exchange of the dissolved material taking place during the flow molding technique.
  • the axial length of the threaded hole with respect to the known clamping sleeve from the DE 203 10 459 U1 increased by the thickness of exactly one upper wall portion, because the known clamping sleeve has a single upper wall portion.
  • a clamping sleeve is provided by the invention, which is very simple and thus inexpensive to produce as a one-piece sheet metal bent part. Furthermore, it is achieved by the invention that only the most critical for the power transmission area, namely the thread length of the threaded hole, is precisely modified, without parameters of the remaining areas of the clamping sleeve, for example the sheet thickness, to change.
  • a particular embodiment of the invention provides that the two upper wall sections approximately plan on each other due to the induced in the threaded hole production oscillations between the two upper wall sections has been expected.
  • the two upper wall sections are approximately planar to each other, it is possible, even with two upper wall sections, the receiving space of the clamping sleeve sufficiently large form, without having to carry out the side wall sections particularly high. Furthermore, it is achieved by the two approximately plan superposed upper wall sections that the mechanical connection between the two upper wall sections is much firmer; as in two upper, separated by a gap wall sections.
  • a fastening means is provided on the clamping sleeve in an advantageous manner. This ensures that both upper wall sections can comply exactly with their position even in the production of the threaded hole and are not deformed or even pressed into the receiving space.
  • the upper wall sections could be heated at the positions provided for the threaded hole.
  • the fastening means comprises a projection integrally formed on one of the two upper wall sections and a recess formed correspondingly in a side wall section.
  • the projection and the corresponding recess can be formed by uncomplicated geometries.
  • the projection and the recess can already be done by simple punching on a flat sheet metal part, which is then formed in sheet metal bending process to the clamping sleeve.
  • Another object of the invention is a method for producing the clamping sleeve. Advantageous developments to the production method according to the invention are given in the subsequent subclaims.
  • Fig. 1 shows a terminal 1 with a housing made of insulating material.
  • the terminal 1 consists of several modules 3, which are strung together in the width direction on their side walls.
  • a screw with a clamping sleeve 5 is mounted electrically conductive material. It is used to clamp an electrical conductor 11, which is pushed into the clamping sleeve 5 via an opening 16 provided on the rear side of the housing 15 in the interior of the clamping sleeve 5, which is referred to as the receiving space.
  • the clamping sleeve 5 itself is designed as a frame-shaped bent sheet metal part and has in the assembled state to the housing openings 7, 16 aligned openings.
  • the clamping sleeve 5 is in Fig. 2 shown as a single part.
  • the clamping sleeve 5 comprises a lower U-shaped wall section 17 with a bottom wall section 17.3 and a first side wall section 17.1 adjoining thereto and a second side wall section 17.2.
  • Of each side wall portion 17.1, 17.2 each extending an upper wall portion 19.1, 19.2. They are arranged opposite to the bottom wall section 17.3 and run perpendicular to the Side wall sections 17.1, 17.2.
  • the clamping sleeve 5 is thus formed in the manner of a box-shaped closed profile with two superposed upper wall sections 19.1, 19.2.
  • Through the two upper wall portions 19.1, 19.2 a manufactured in flow molding threaded hole 21 is guided with collar-shaped projections 23. About this produced in flow molding threaded hole 21, the two upper wall portions 19.1, 19.2 are mechanically interconnected.
  • This mechanical connection is due to the choice of the flow molding technique as a manufacturing process of the threaded hole 21, because in this method, that leached from the threaded hole 21 material is liquid and the leached material flows to the two axial hole ends and a material exchange takes place.
  • the two upper wall sections are preferably approximately plan on each other and touch each other.
  • a connector 25, 27 was selected. It comprises an integrally formed on the upper wall portion 19.2 projection 25 and a corresponding thereto arranged in the side wall portion 17.1 recess 27.
  • all other known methods and devices such as gluing, riveting, welding, etc. can also serve as fastening means.
  • tools designed to be separate from the clamping sleeve for holding the upper wall section which, for example, engage below the upper wall section, can also be used as fastening means.
  • a flat sheet metal part is bent into a frame-like bent part with an upper wall portion 19 and an associated approximately U-shaped lower wall portion 17.
  • the U-shaped wall portion 17 includes a bottom wall portion 17.3 with a first side wall portion 17.1 adjacent thereto and a second side wall portion 17.2.
  • a first upper wall section 19.1 and an upper second wall section 19.2 are each deflected at right angles to the side wall sections 17.1, 17.2 in the direction of the respective opposite side wall.
  • the bending axes of the two upper wall sections 19.1, 19.2 are offset from the bottom wall section 17.3 in the height direction of the respective side walls by approximately one sheet thickness of the clamping sleeve offset from one another.
  • the bending of the two upper wall sections 19.1, 19.2 is carried out in succession.
  • the second upper wall portion 19.2 is bent and its integrally formed projection 25 is inserted into the recess 27.
  • the deformation of the first upper wall portion 19.1. He is due to its higher by a plate thickness arranged bending axis on the second upper wall portion 19.2 and touches this.
  • the two upper superposed wall sections 19.1, 19.2 are drilled by cutting. This bore diameter is many times smaller than the diameter of the final threaded hole 21.
  • the existing machined drilled bore is drilled with a specially designed flow drill in flow molding.
  • part of the hot and liquid material dissolved out of the bore is transported by the drill up onto the upper side 29 of the upper wall section 19.1 and an upper collar-shaped projection 23.1 is formed.
  • a portion of the hot, dissolved out of the bore material flows substantially controlled by the advance of the drill and the gravitational force first on the surface of the second upper wall portion 19.2.
  • the solidified in this area material connects the two upper wall sections 19.1, 19.2.
  • the bore is drilled in the second upper wall section 19.2. Also in this drilling process material is transported on the one hand by the rotation of the drill upwards in the direction of the top 29 again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (10)

  1. Douille de serrage (5) pour conducteurs (11) électriques à base d'une partie pliée en tôle, comprenant une partie de paroi (19) supérieure, et un premier tronçon de paroi latérale (17.1) relié au premier et un second tronçon de paroi latérale (17.2),
    le tronçon de paroi (19) supérieure présentant au moins un trou de filetage (21) avec des embases (23.1, 23.2) en forme de collerette, deux tronçons de paroi (19.1, 19.2) supérieurs, disposés l'un au-dessus de l'autre et déviés respectivement par les deux tronçons de paroi latérale (17.1, 17.2), étant prévus,
    caractérisée en ce que
    le trou de filetage (21) est fabriqué par technique de fluotournage et est guidé en passant à travers les deux tronçons de paroi (19.1, 19.2) supérieurs, de sorte que les deux tronçons de paroi (19.1, 19.2) supérieurs sont reliés mécaniquement l'un à l'autre.
  2. Douille de serrage (5) selon la revendication 1,
    caractérisée en ce que
    les deux tronçons de paroi (19.1, 19.2) supérieurs sont disposés de façon approximativement plane l'un sur l'autre.
  3. Douille de serrage (5) selon la revendication 2,
    caractérisée en ce que
    les embases (23.1, 23.2) en forme de collerette sont disposées exclusivement sur les surfaces extérieures, opposées les unes aux autres, des deux tronçons de paroi (19.1, 19.2) supérieurs.
  4. Douille de serrage (5) selon au moins l'une quelconque des revendications précédentes,
    caractérisée en ce que
    un moyen de fixation est prévu sur la douille de serrage (5) pour la fixation de la position d'au moins l'un des deux tronçons de paroi (19.1, 19.2) supérieurs.
  5. Douille de serrage (5) selon la revendication 4,
    caractérisée en ce que
    le moyen de fixation comporte une saillie (25) formée côté extrémité sur l'un des deux tronçons de paroi (19.1, 19.2) supérieurs ainsi qu'un évidement (27) correspondant à la saillie et conçu dans un tronçon de paroi latérale (17.1).
  6. Douille de serrage (5) selon au moins l'une quelconque des revendications 4 à 5,
    caractérisée en ce que de la colle est prévue comme moyen de fixation.
  7. Procédé pour la fabrication d'une douille de serrage (5) dans lequel une partie en tôle plate est pliée pour former une partie pliée en tôle avec un tronçon de paroi (19) supérieur et un premier tronçon de paroi latérale (17.1) relié au premier et un second tronçon de paroi latérale (17.2) et au moins un trou de filetage (21) avec des embases (23.1, 23.2) en forme de collerette et introduit dans le tronçon de paroi (19) supérieur,
    les tronçons de paroi (19.1, 19.2) supérieurs étant pliés à chaque fois à partir du premier tronçon de paroi latérale (17.1) et du second tronçon de paroi latérale (17.2) de telle sorte que ces tronçons sont disposés parallèlement les uns au-dessus des autres et se touchent les uns les autres,
    caractérisé en ce que
    un trou de filetage commun, fabriqué par la technique de fluotournage, est introduit ensuite par les deux tronçons de paroi (19.1, 19.2) supérieurs, de sorte que les deux tronçons de paroi (19.1, 19.2) supérieurs sont reliés mécaniquement l'un à l'autre.
  8. Procédé pour fabriquer une douille de serrage (5) selon la revendication 7,
    caractérisé en ce que
    au moins l'un des deux tronçons de paroi (19.1, 19.2) supérieurs est fixé avant l'introduction du trou de filetage commun.
  9. Procédé pour fabriquer une douille de serrage (5) selon la revendication 8,
    caractérisé en ce que
    des moyens de fixation sont placés sur le tronçon de paroi (19.2) supérieur à fixer pour la fixation d'au moins l'un des deux tronçons de paroi (19.1, 19.2) supérieurs, en particulier sous forme d'outils conçus séparément de la douille de serrage (5).
  10. Procédé pour fabriquer une douille de serrage (5) selon au moins l'une quelconque des revendications 8 à 9,
    caractérisé en ce que
    de la colle est appliquée sur au moins l'un des tronçons de paroi (19.1, 19.2) supérieurs pour sa fixation.
EP06024390A 2006-11-24 2006-11-24 Borne de connexion pour conducteur électrique et son procédé de fabrication Ceased EP1926178B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06024390A EP1926178B1 (fr) 2006-11-24 2006-11-24 Borne de connexion pour conducteur électrique et son procédé de fabrication
DE502006003840T DE502006003840D1 (de) 2006-11-24 2006-11-24 Klemmhülse für elektrische Leiter sowie Verfahren zur Herstellung dieser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06024390A EP1926178B1 (fr) 2006-11-24 2006-11-24 Borne de connexion pour conducteur électrique et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP1926178A1 EP1926178A1 (fr) 2008-05-28
EP1926178B1 true EP1926178B1 (fr) 2009-05-27

Family

ID=37879451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024390A Ceased EP1926178B1 (fr) 2006-11-24 2006-11-24 Borne de connexion pour conducteur électrique et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP1926178B1 (fr)
DE (1) DE502006003840D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4478550A1 (fr) * 2023-06-13 2024-12-18 Japan Aviation Electronics Industry, Ltd. Bloc de bornes et procédé de production de corps de borne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102780102A (zh) * 2012-07-26 2012-11-14 上海友邦电气(集团)股份有限公司 一种用于低压电器的压线框

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1227969B (de) * 1961-05-20 1966-11-03 Josef Eisert Reihenklemme mit huelsenfoermigem, aus einem Blechstreifen durch Kanten gebildetem Klemmkoerper
GB1295391A (fr) * 1971-03-25 1972-11-08
DE4032538A1 (de) * 1990-10-13 1992-04-16 Abb Patent Gmbh Klemme fuer ein schaltgeraet
US6074121A (en) 1997-06-30 2000-06-13 Thomas & Betts Corporation Fastening lug
DE20310459U1 (de) 2003-07-08 2004-11-18 Adels-Contact Elektrotechnische Fabrik Gmbh & Co. Kg Klemmkörper für eine Lüsterklemme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4478550A1 (fr) * 2023-06-13 2024-12-18 Japan Aviation Electronics Industry, Ltd. Bloc de bornes et procédé de production de corps de borne

Also Published As

Publication number Publication date
EP1926178A1 (fr) 2008-05-28
DE502006003840D1 (de) 2009-07-09

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