US3926495A - Electrical contact body - Google Patents

Electrical contact body Download PDF

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Publication number
US3926495A
US3926495A US524084A US52408474A US3926495A US 3926495 A US3926495 A US 3926495A US 524084 A US524084 A US 524084A US 52408474 A US52408474 A US 52408474A US 3926495 A US3926495 A US 3926495A
Authority
US
United States
Prior art keywords
contact body
base
triangular
spherical surface
electrical contact
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
US524084A
Other languages
English (en)
Inventor
Angel Nikolaev Pissarev
Maria Pancheva Miteva
Ivan Velev Balabanov
Lyubomir Dimov Peychev
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.)
DSO ELPROM BG1973112225040
DSO 'ELPROM'BG1973112225040
Original Assignee
DSO ELPROM BG1973112225040
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 DSO ELPROM BG1973112225040 filed Critical DSO ELPROM BG1973112225040
Application granted granted Critical
Publication of US3926495A publication Critical patent/US3926495A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287—Details of the shape of the contact springs

Definitions

  • This invention relates to an electrical contact body for contact commutation apparatus, particularly for low voltages.
  • An electrical contact body is known, which is used in low-voltage apparatuses such as contactors, relays etc., which is in the form of a parallelepiped with a spherical or flat contact surface. It is a drawback of this body that in commutation the apparatus is worn out irregularly since most part of the contact material in molten and- /or powdered form is carried away by electrodynamic forces outside the limits of the contact body.
  • an electrical contact body consisting of a triangular prism with an isosceles triangle with rounded-off edges.
  • the uppermost part of the contact has a spherical surface, which is situated near the peak which is formed by the equal legs of the base of the triangular prism.
  • the remaining walls of the triangular pyramid are formed 'by tangents to the spherical surface.
  • FIG. 1 is a side elevational view of a first embodiment of the contact body of the invention
  • FIG. 2 is a view in plan of the contact body of FIG. 1;
  • FIG. 3 is a cross-sectional view of the contact body of FIG. 1 through its highest portion, the section being taken along with line 3-3 of FIG. 1;
  • FIG. 4 is an illustration of the position of two opposing similar contact bodies in the contact system, wherein the arrow (1 indicates the direction of motion of the electric arc; and
  • FIG. 5 is a view in plan of a second embodiment of the contact body of the invention, such body having a lower portion shaped as a dovetail.
  • the first embodiment of the contact body designated 7 triangle with rounded-off peaks (FIG. 2) and a part similar to a triangular pyramid situated on the prism 1, which has the same base and rounded-off peaks.
  • the uppermost portion of the Contact body (FIG. 3) has a spherical surface 3, drawn to the peak formed by the equal legs of the isosceles triangle of the base of the triangular prism 1.
  • the remaining walls of the part 2 which is similar to a triangular pyramid are tangents to the spherical surface 3.
  • one of the contact bodies (usually the fixed one) can be made with a flat area in its uppermost portion.
  • the contacts are in engagement only at their uppermost spherical surfaces 3, which are of smallest width.
  • the widest and lowest or base part of the contact bodies are oriented in the direction of motion d (FIG. 4) of the electric arc.
  • the electric are produced is moved from the uppermost spherical surface 3 to the portion of smaller height that is, the base which is the widest part of the contact body.
  • FIG. 5 illustrates a variant of the contact body.
  • the contact body C of FIG. 5 differs from the contact body shown in FIG. 2 in that the body of FIG. 5 is hollowed in its widest and lowest part in the shape of a dovetail.
  • An electrical contact body for a contact commutation apparatus said contact body having a base in the form of a triangular prism having an isosceles triangular section with rounded-off peaks, a triangular pyramid with rounded-off edges disposed on said base, the uppermost portion of the contact body having a spherical surface disposed near the peak formed by the equal legs of the triangular prism base, the remaining walls of the triangular pyramid being tangents to the spherical surface.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
US524084A 1973-11-22 1974-11-15 Electrical contact body Expired - Lifetime US3926495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG25040A BG19046A1 (de) 1973-11-22 1973-11-22

Publications (1)

Publication Number Publication Date
US3926495A true US3926495A (en) 1975-12-16

Family

ID=3899824

Family Applications (1)

Application Number Title Priority Date Filing Date
US524084A Expired - Lifetime US3926495A (en) 1973-11-22 1974-11-15 Electrical contact body

Country Status (10)

Country Link
US (1) US3926495A (de)
JP (1) JPS5132960A (de)
BG (1) BG19046A1 (de)
CH (1) CH576697A5 (de)
DD (1) DD114720A5 (de)
DE (1) DE2451184A1 (de)
FR (1) FR2252641B3 (de)
HU (1) HU168766B (de)
RO (1) RO68638A (de)
SU (1) SU578658A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116966A (en) * 1998-04-17 2000-09-12 Ati Industrial Automation, Inc. High power electrical contacts for robotic tool changer
US20090011657A1 (en) * 2007-07-06 2009-01-08 K.S. Terminals, Inc. Electrical connector and conducting terminal used therein
CN101609762B (zh) * 2008-06-16 2012-11-28 日本Ae帕瓦株式会社 叶片形断路器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204641C2 (de) * 1992-02-15 1994-09-22 Hella Kg Hueck & Co Kontaktsatz
JP5610045B2 (ja) * 2013-07-18 2014-10-22 三菱電機株式会社 接点開閉器
RU210556U1 (ru) * 2022-01-12 2022-04-21 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет" ФГБОУ ВО "СибГИУ" Контактный мостик электромагнитного коммутационного аппарата

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US688337A (en) * 1900-02-19 1901-12-10 Siemens & Halske Elec Co Usa Means for electrically connecting railway-cars.
US2246931A (en) * 1938-02-01 1941-06-24 Emi Ltd Method of fabricating connecting leads
US2877439A (en) * 1953-09-22 1959-03-10 Burroughs Corp Electrical slide fastener connector
US3259870A (en) * 1963-03-06 1966-07-05 Albert & J M Anderson Mfg Co Electrical connector
US3573710A (en) * 1968-11-04 1971-04-06 Texas Gas Transmission Corp Means and method for insulating connectors from ambient atmosphere during mating
US3853382A (en) * 1972-04-28 1974-12-10 Burndy Corp High pressure electrical contacts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US688337A (en) * 1900-02-19 1901-12-10 Siemens & Halske Elec Co Usa Means for electrically connecting railway-cars.
US2246931A (en) * 1938-02-01 1941-06-24 Emi Ltd Method of fabricating connecting leads
US2877439A (en) * 1953-09-22 1959-03-10 Burroughs Corp Electrical slide fastener connector
US3259870A (en) * 1963-03-06 1966-07-05 Albert & J M Anderson Mfg Co Electrical connector
US3573710A (en) * 1968-11-04 1971-04-06 Texas Gas Transmission Corp Means and method for insulating connectors from ambient atmosphere during mating
US3853382A (en) * 1972-04-28 1974-12-10 Burndy Corp High pressure electrical contacts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116966A (en) * 1998-04-17 2000-09-12 Ati Industrial Automation, Inc. High power electrical contacts for robotic tool changer
US20090011657A1 (en) * 2007-07-06 2009-01-08 K.S. Terminals, Inc. Electrical connector and conducting terminal used therein
US7628630B2 (en) 2007-07-06 2009-12-08 K.S. Terminals, Inc. Electrical connector and conducting terminal used therein
CN101609762B (zh) * 2008-06-16 2012-11-28 日本Ae帕瓦株式会社 叶片形断路器

Also Published As

Publication number Publication date
FR2252641A1 (de) 1975-06-20
FR2252641B3 (de) 1977-08-05
DE2451184A1 (de) 1975-05-28
JPS5132960A (de) 1976-03-19
SU578658A1 (ru) 1977-10-30
DD114720A5 (de) 1975-08-12
RO68638A (ro) 1980-02-15
HU168766B (de) 1976-07-28
BG19046A1 (de) 1975-04-30
CH576697A5 (de) 1976-06-15

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