US1426993A - Closed-circuit relay - Google Patents

Closed-circuit relay Download PDF

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Publication number
US1426993A
US1426993A US522116A US52211621A US1426993A US 1426993 A US1426993 A US 1426993A US 522116 A US522116 A US 522116A US 52211621 A US52211621 A US 52211621A US 1426993 A US1426993 A US 1426993A
Authority
US
United States
Prior art keywords
armature
relay
poles
closed
spring
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
US522116A
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English (en)
Inventor
Kardaetz Paul
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 and Halske AG
Siemens Corp
Original Assignee
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
Priority to DES54994D priority Critical patent/DE371626C/de
Priority to GB2901021A priority patent/GB172935A/en
Priority to FR542963D priority patent/FR542963A/fr
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to US522116A priority patent/US1426993A/en
Application granted granted Critical
Publication of US1426993A publication Critical patent/US1426993A/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
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements

Definitions

  • PAUL KARIDAETZ OF BERLIN-REINIGKENDORF, GERMANY, ASSIGNOR TO SIEMENS & EALSKE, AKTIENG-ESELLSCHAFT, OF SIEMENSSTADT, NEAR BERLIN, GERMANY, A.
  • the armature When therefore, in the case of a sudden interruption of the current, the armature is caused by the actlon of its own weight or of a spring, to move a slight distance away from its poles, it still remains within a magnetic field of considerable strength by which the armature s still attracted to a certain degree. Thus, if a new closure of the circuit should occur before the former field has entirely dlsappeared,'the armature will be attracted anew.
  • the present invention has for its object to provide an improved closed circuit relay wherein the above disadvanta 'es are obviated, and wherein a certain rop of the armature will take place even in the case of interruptions of the current of extremely short duration.
  • This object is attained by changing 'the path of the magnetic lines of force entermg or passing through the armature at the very beginning of the dropping movement of, the armature in such manner that, although there still remains a path through the armature available for these lines of force, they will not be able, in taking this path, to exert any longer any pull upon the armature, tending to restore it to its .ori inal on position.
  • Figures 1 and 2 illustrate in two different working positions spring force alone in its dropped posltion
  • Figures too to 5 illustrate an arrangement 1n three different working positions, wherean arrangement .wherem the dropping armature is kept by in the springforce is assisted by the re-' I is a contact spring fixed to the armature;
  • the relay may serve in the circuits in which the relay is used, for instance to close the contacts 8 or 9 according to the position of the armature.
  • Figure 1 shows the armature in the on position.
  • the current flowing through the electromagnet is interrupted, there will be formed, immediately on the commencement of the dropping movement, an air gap between the surfaces 4 and 5 and the magnet poles.
  • the result of this is that owing tothe considerable resistance offered to the fiux by the air gap near the ends of the armature the slowly disappearing magnetic lines of forcewill immediately be crowded together at the portions 10 and 11 of the poles where they will encounter only a'small air gap resistance, and at these points the lines will pass transversely through the armature, close to the axis of the latter, whereas the former magnetic fieldin the air gap between the armature ends and the pole pieces will immediately cease.
  • FIGs 3 to 5' illustrate a constructional example wherein the armature 2 has such a shape that when it commences to drop from the position shown in Figure 3, the re-energization of the relay will now assist the spring in moving the armature into the off position.
  • the manner of operation in this case is again such, that when the relay circuit is opened, a large air gap will immediately form between the armature ends and the pole faces, and the remaining lines of force will be crowded together at those ,points of the poles situated opposite the pivotal center of the armature. These lines of force will therefore pass through the armature at a point at which they are not able to exert any torqueupon it as is shown in Figure 4.
  • pole pieces and armatures of therelay having weak magnetic saturation so that the shifting of all the lines of force in the pole pieces to a predetermined place can be more easily effected.
  • a closed circuit relay having poles and an armature designed to have an on and oil position and being pivotally disposed midway between its ends and between said poles and permitting the flux to pass lengthwise through it when in on position, means tending to throw said armature into off positionand adapted to partly remove it from the on position when the relay is temporarily de-energized, said armature being wider at its central portion than at its ends, causing the re-energization fiux to pass transversely through said portion when the armature is partly removed from the on position, to permit said throw-01f means to remove it entirely into off position.
  • a closed circuit relay having poles and an armature designed to have an on and off position and being pivotally disposed midway between its ends and between said poles and permitting the flux to pass length wise through it when in on position, means tending to throw said armature into off position and adapted to partly remove it from the on position when the relay is temporarily de-energized, said armature being 'wider at its central portion than at its ends, causing the re-energization flux to pass transversely through said portion when the armature is partly removed from the on position, to permit said throw-off means to remove it entirely into off position, said armature when approaching ofi position permitting the re-encrgization flux to pass lengthwise through it, but in a direction reverse to that when in on position, to assist said throw-oil means to completely move off position, said armature when approaching ofi position permitting the re-encrgization flux to pass lengthwise through it, but in a direction reverse to that when in on position, to assist said throw-oil means to completely move
  • a closed circuit relay having poles and a diamond shaped armature designed to have an on and ofi'.position and being pivotally disposed midway between its ends and between said poles and permitting the flux to pass lengthwise through it when in on position, a spring tending to throw said armature into off position and adapted to partly remove the armature from the to pass transversely through said central portion when the diamond ends are partly removed from the on position to permit said spring to move the armature entirely into the off position.
  • a closed circuit relay having poles and a diamond shaped armature designed to have an on and off position and being pivotally disposed midway between its ends and between said poles and permitting the flux to pass lengthwise through it when in on" position, a spring tending to throw said armature into ofi position and adapted to partly remove the armature from the on position when the relay is temporarily de-energized, the larger central portion of said armature causing the re- In testimony whereof I aifix my signature.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
US522116A 1920-12-12 1921-12-13 Closed-circuit relay Expired - Lifetime US1426993A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DES54994D DE371626C (de) 1920-12-12 1920-12-12 Ruhestromrelais, bei dem bei voruebergehenden Stromunterbrechungen ein dauerndes Abfallen des Ankers eintritt
GB2901021A GB172935A (enrdf_load_stackoverflow) 1920-12-12 1921-11-01
FR542963D FR542963A (fr) 1920-12-12 1921-11-02 Relais à courant permanent, dans lequel des interruptions passagères de courant provoquent une chute durable de l'armature
US522116A US1426993A (en) 1920-12-12 1921-12-13 Closed-circuit relay

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES54994D DE371626C (de) 1920-12-12 1920-12-12 Ruhestromrelais, bei dem bei voruebergehenden Stromunterbrechungen ein dauerndes Abfallen des Ankers eintritt
US522116A US1426993A (en) 1920-12-12 1921-12-13 Closed-circuit relay

Publications (1)

Publication Number Publication Date
US1426993A true US1426993A (en) 1922-08-22

Family

ID=25995426

Family Applications (1)

Application Number Title Priority Date Filing Date
US522116A Expired - Lifetime US1426993A (en) 1920-12-12 1921-12-13 Closed-circuit relay

Country Status (4)

Country Link
US (1) US1426993A (enrdf_load_stackoverflow)
DE (1) DE371626C (enrdf_load_stackoverflow)
FR (1) FR542963A (enrdf_load_stackoverflow)
GB (1) GB172935A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424308A (en) * 1942-09-15 1947-07-22 Westinghouse Electric Corp Contactor
US2455049A (en) * 1948-11-30 Shockpkoof electromagnetic
US2549323A (en) * 1948-11-15 1951-04-17 Mcmullen Elvin Automatic electromagnetic switch
US2553478A (en) * 1944-10-26 1951-05-15 Arrow Hart & Hegeman Electric Rotary electromagnetic transfer switch
US2597873A (en) * 1946-02-23 1952-05-27 Fkg Fritz Kesselring Geratebau Electromagnetic switching device for controlling electric circuits
US2619563A (en) * 1945-08-07 1952-11-25 Kesselring Fritz Electromagnetic control device
US2811602A (en) * 1952-05-29 1957-10-29 Telephone Mfg Co Ltd Electromagnetic relays

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL183132B (nl) * 1954-01-25 Greiner Kg Stapelbare sluithuls, alsmede combinatie van een magazijn gevuld met dergelijke sluithulzen.
DE1126994B (de) * 1958-03-22 1962-04-05 Electro Entpr L Drehanker-Elektromagnet
US4814428A (en) * 1987-06-04 1989-03-21 General Electric Company Method of increasing the thermal stability of cyclic carbonate oligomers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455049A (en) * 1948-11-30 Shockpkoof electromagnetic
US2424308A (en) * 1942-09-15 1947-07-22 Westinghouse Electric Corp Contactor
US2553478A (en) * 1944-10-26 1951-05-15 Arrow Hart & Hegeman Electric Rotary electromagnetic transfer switch
US2619563A (en) * 1945-08-07 1952-11-25 Kesselring Fritz Electromagnetic control device
US2597873A (en) * 1946-02-23 1952-05-27 Fkg Fritz Kesselring Geratebau Electromagnetic switching device for controlling electric circuits
US2549323A (en) * 1948-11-15 1951-04-17 Mcmullen Elvin Automatic electromagnetic switch
US2811602A (en) * 1952-05-29 1957-10-29 Telephone Mfg Co Ltd Electromagnetic relays

Also Published As

Publication number Publication date
FR542963A (fr) 1922-08-24
DE371626C (de) 1923-03-17
GB172935A (enrdf_load_stackoverflow) 1923-02-01

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