EP0182736A2 - Pièce de connexion pour raccorder des conducteurs électriques ronds - Google Patents

Pièce de connexion pour raccorder des conducteurs électriques ronds Download PDF

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Publication number
EP0182736A2
EP0182736A2 EP85730142A EP85730142A EP0182736A2 EP 0182736 A2 EP0182736 A2 EP 0182736A2 EP 85730142 A EP85730142 A EP 85730142A EP 85730142 A EP85730142 A EP 85730142A EP 0182736 A2 EP0182736 A2 EP 0182736A2
Authority
EP
European Patent Office
Prior art keywords
lamellae
thin
contact piece
walled
cylindrical housing
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
EP85730142A
Other languages
German (de)
English (en)
Other versions
EP0182736B1 (fr
EP0182736A3 (en
Inventor
Detlev Niederhüfner
Siegfried Ochla
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0182736A2 publication Critical patent/EP0182736A2/fr
Publication of EP0182736A3 publication Critical patent/EP0182736A3/de
Application granted granted Critical
Publication of EP0182736B1 publication Critical patent/EP0182736B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers

Definitions

  • the invention relates to a coupling contact piece for connecting round electrical conductors, in particular for detachable plug connections on metal-encapsulated, compressed gas-insulated high-voltage switchgear, with a plurality of elongated trapezoidal contact lamellae which are arranged on the circumference of the conductor to be connected and by leaf springs which are parallel to the lamellae on the outside thereof. are pressed against the conductor, the leaf springs being fixed in a groove in the blunt side of the lamellae and supported against a cylindrical housing containing the lamellae, which contains at least one longitudinally extending intermediate wall projecting between two lamellae.
  • Such a dome contact piece is known from DE-PS 11 60 914. It has the advantage of simple manufacture and easy assembly of its components, which can be done in particular by means of automatic machines. The force exerted on each lamella by the leaf springs also results in an even contact pressure.
  • the selectable number of contact lamellae is limited by the fact that they should have a width of 6 to 10 mm on the blunt side, because if the width is too small, a lateral tilting of the lamellae can occur under certain circumstances, whereby the contact pressure is released would. Although this can be avoided by means of solid partition walls which guide the lamellae, the tubular housing loses its simple inner cylindrical shape, which makes its manufacture more difficult.
  • the invention has for its object to enable the simple manufacture of the housing of such a dome contact piece despite the presence of an axially extending partition between the fins.
  • the dome contact piece of the type described above is designed according to the invention in such a way that the cylindrical housing surrounding the lamellae is formed from a strip of thin-walled sheet metal bent into a cylinder, the width of which approximately corresponds to the length of the lamellae, one of the axially extending edges is bent radially inwards at a height selected less than the height of the lamellae and that this thin-walled cylindrical housing lies in a thicker-walled cylindrical outer housing of the dome contact piece.
  • the partition is therefore not rigidly connected to the cylindrical outer housing, but is arranged on a separate thin-walled cylindrical housing. Since this thin-walled cylindrical housing is formed from a strip of thin-walled sheet metal bent into a cylinder, the intermediate wall is obtained in the simplest manner by bending one of the axially extending edges radially inwards. The height of the bent part is chosen to be smaller than the slat height. This partition protrudes between two fins and results in good guiding and fixing of the fins in terms of both their circumferential and longitudinal directions. The contact pressures of the lamellae created by the leaf springs, on the other hand, are absorbed by the thick-walled outer housing.
  • the other axially extending edge of the thin-walled cylindrical housing forms a narrow gap to the bent edge, which is smaller than the distance between the lamella side surface and the groove for receiving the leaf spring.
  • the bent inner cylindrical housing is advantageously made of a non-magnetic sheet with high mechanical strength and hard surface, such as. B. bronze or brass. This prevents the leaf springs from being pressed into the sheet, which would reduce the contact pressure.
  • FIG. 1 shows a longitudinal section through a dome contact piece designed according to the invention.
  • FIG. 2 shows, partially in section, a view of an end face of the dome contact piece, viewed in the direction of the arrow drawn in FIG. 1.
  • Figure 3 shows the inner cylindrical housing on a smaller scale.
  • the dome contact piece 1 for the connection of two round conductors of a compressed gas-insulated metal encapsulated high-voltage switchgear has a thick-walled outer housing 2, which has a substantially cylindrical shape.
  • the front outer edges 3 as well as the edges 4 next to a constriction 5 for receiving a safety spring, not shown, are greatly rounded, so that the outer housing 2 also acts as a shield controlling the electrical field in the course of the conductor connection.
  • the inner diameter 6 in the area of the constriction 5 is smaller than the inner diameter 7 for receiving the lamellae 8, so that a paragraph 9 forms between the two, on which the lamellae 8 abut one side.
  • Each lamella 8 is trapezoidal.
  • the pointed side 10 of the lamella 8 forms the contact surface with the conductors (not shown) to be connected.
  • the blunt side facing the outer housing 2 contains a central groove 11, which is laterally spaced 12 from the slat side surface 13.
  • a leaf spring 14 is arranged, which supports the lamella 8 with respect to the outer housing 2 and thus causes the contact pressure of the lamella 8.
  • the leaf spring 14 does not abut the inner bore 15 of the outer housing 2, but a thin-walled cylindrical housing 16 is inserted into this.
  • This thin-walled cylindrical housing 16 is formed from a strip of thin-walled bronze sheet bent into a cylinder.
  • the width of the sheet approximately corresponds to the length of the lamellae 8.
  • One of the axially extending edges 17 of the sheet is bent radially inward at a height 19 selected less than the lamella height 18.
  • this bent edge 17 forms an intermediate wall 20 which projects between two lamellae 8.
  • the other, not bent, axially extending edge 21 of the thin-walled cylindrical housing 16 forms a narrow gap 22 to the bent edge 17, which is smaller than the distance 12 between the lamella side surface 13 and the groove 11 for receiving the leaf spring 14
  • Leaf springs 14 each on the inner surface of the thin-walled cylindrical housing 16, so that the same contact pressure is ensured along the entire circumference of the dome contact piece 1.
  • the thin-walled housing 16 absorbs the contact force itself, but transmits it directly to the outer housing 2.
  • the assembly of the dome contact piece 1 is very simple. First, the thin-walled cylindrical housing 16 is inserted into the inner bore 15 of the outer housing 2 until it comes to rest on the paragraph 9. Then the individual slats 8 are inserted from the side and also reach paragraph 9 to the system. Now the leaf springs 14 are inserted into each groove 11 of the slats 8. Finally, in front of the end face of the thin-walled cylindrical housing 16, the leaf springs 14 and the lamellae 8, a disk 23 is placed for axial securing, which is fixed at some points in the outer housing 2 by caulking.
  • the intermediate wall 20 of the cylindrical housing 16 projecting between two lamellae 8 provides precise lateral guidance and fixing of the lamellae 8, so that they are prevented from tilting in a simple manner, which leads to a reduction in the current carrying capacity would lead.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Springs (AREA)
EP85730142A 1984-10-25 1985-10-16 Pièce de connexion pour raccorder des conducteurs électriques ronds Expired EP0182736B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8431557U DE8431557U1 (de) 1984-10-25 1984-10-25 Kuppelkontaktstück zum Verbinden runder elektrischer Leiter
DE8431557U 1984-10-25

Publications (3)

Publication Number Publication Date
EP0182736A2 true EP0182736A2 (fr) 1986-05-28
EP0182736A3 EP0182736A3 (en) 1986-06-04
EP0182736B1 EP0182736B1 (fr) 1988-06-15

Family

ID=6772126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730142A Expired EP0182736B1 (fr) 1984-10-25 1985-10-16 Pièce de connexion pour raccorder des conducteurs électriques ronds

Country Status (3)

Country Link
EP (1) EP0182736B1 (fr)
JP (1) JPS61104569A (fr)
DE (2) DE8431557U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789424A3 (fr) * 1996-02-08 1998-11-11 Asea Brown Boveri Ag Elément de raccord pour deux sections de conducteur à haute tension
EP3748780A1 (fr) * 2019-06-05 2020-12-09 Tyco Electronics UK Ltd Borne de contact

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5714516B2 (ja) * 2012-01-23 2015-05-07 サンコール株式会社 電気コネクタ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160914B (de) * 1961-11-24 1964-01-09 Siemens Ag Kuppelkontaktstueck
GB1070033A (en) * 1964-06-24 1967-05-24 Pyle National Co Improvements in or relating to electrical contacts
CH474876A (de) * 1968-11-05 1969-06-30 Bbc Brown Boveri & Cie Elektrische Kontaktanordnung
US3713075A (en) * 1971-04-26 1973-01-23 Ite Imperial Corp Dielectric shield for plug-in contacts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789424A3 (fr) * 1996-02-08 1998-11-11 Asea Brown Boveri Ag Elément de raccord pour deux sections de conducteur à haute tension
EP3748780A1 (fr) * 2019-06-05 2020-12-09 Tyco Electronics UK Ltd Borne de contact

Also Published As

Publication number Publication date
JPS61104569A (ja) 1986-05-22
EP0182736B1 (fr) 1988-06-15
DE3563402D1 (en) 1988-07-21
EP0182736A3 (en) 1986-06-04
JPH0313709B2 (fr) 1991-02-25
DE8431557U1 (de) 1985-03-21

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