US2375586A - Polarized relay - Google Patents

Polarized relay Download PDF

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Publication number
US2375586A
US2375586A US377719A US37771941A US2375586A US 2375586 A US2375586 A US 2375586A US 377719 A US377719 A US 377719A US 37771941 A US37771941 A US 37771941A US 2375586 A US2375586 A US 2375586A
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US
United States
Prior art keywords
armature
flux
permanent magnet
electromagnet
core
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
US377719A
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English (en)
Inventor
Romer Otto
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2375586A publication Critical patent/US2375586A/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
    • H01H51/22—Polarised relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature

Definitions

  • the known polarized relay presents the disadvantage in that a relatively large armature must be employed which is generally constantly saturated owingto the magnetic direct-current flux which forms a closed circuit through the ends of the armature. If the saturation of the armature should not be effected too rapidly, the
  • Fig. 1 shows the permanent magnet l, the alternating flux core 2 and the armature 3.
  • the permanent magnet is so shaped that the two permanent fluxes form a closed circuit through the ends of the armature 3.
  • the flux circuit extends from the pole piece 4 of the permanent magnet I through the end 5 of the armature 3 to the pole piece 6 of the alternating-current core.
  • the pole shoe 6 is arranged on the pole shoe I of the permanent magnet,
  • the dotted circle and the arrow indicate the manner and direction of flow.
  • the second permanent flux circuit extends from the pole piece 8 of the permanent magnet I through the other end 9 of the armature 3, the pole piece IU of the alternating-flux core to the pole piece ll of the permanent magnet l.
  • the permanent fluxes are therefore in spaced re1ation from one another and pass the endsof the armature in the transverse direction.
  • the alternating flux core 2 is energized in a given direction by a coil (not shown) arranged on the limb I 2, the flux circuit of the alternating flux core 2 extends from the pole piece 6 through the entire length of the armature to the pole piece H! of the alternating flux core.
  • Figv 2 in which the same reference characters denote corresponding parts of Fig. 1, shows an arrangement corresponding to that of Fig. 1 except that the flux supply air gaps (i. e., the air gaps through which the permanent fluxes enter the armature) remain constant despite the moveture) are varied.
  • the flux supply air gaps i. e., the air gaps through which the permanent fluxes enter the armature
  • a further advantage of the above-described embodiment consists in designing both the permanent magnet i and the alternating-flux core 2 of one piece, since both need only be given a U- shaped cross-section.
  • Fig. 3 shows another embodiment of the invention.
  • the permanent flux in this embodiment enters the armature at the pivot as indicated at I3 so that the permanent flux passes from the north pole designated by through the air gap l4 into the armature 3 and divides itself at the armature pivot l3.
  • the flux circuit extends on the one hand as indicated by the arrows from the armature pivot I3 to the end 5 of the armature through the air gap, the pole shoe of the alternating-flux circuit to the south pole l of the permanent magnet and on the other hand through the pivot I3, the other end 9 of the armature, the air gap, the pole piece H! to the south pole of the permanent magnet.
  • the alternatingflux circuit extends in the same manner as in the embodiment described above.
  • a magnetic assembly comprising, a permanent magnet having spaced parallel pole faces which extend transverse to the direction of flux therebetween a distance which is substantially greater than the length of the mean length of the gap flux path, an electromagnet core having its ends positioned adjacent the extreme portions of one pole face of said permanent magnet with the remaining portion of the electromagnet core posia tioned remote from the magnetic gap of the permanent magnet whereby the flux of the permanent magnet is concentrated by the ends of the electromagnet core to the end portions of the adjacent pole face of the permanent magnet, and an armature extending between the ends of said electromagnet core and having a face adjacent and parallel to the pole face of said permanent magnet which is remote from the ends of said electromagnet core whereby flux from said electromagnet core transverses substantially the entire length of said armature and flux from said permanent magnet passes alternatively through one end of said.electromagnet core and the adjacent end of the armature or through the other end of said electromagnet core and the other end of said armature.
  • a polarized relay comprising a single permanent magnet for producing a polarizing flux which forms two paths in parallel, a single armature, means for pivotally mounting said armature, a single electromagnet for producing fluctuating flux, the permanent magnet, electromagnet and armature being so constructed and arranged with respect to one another that the pdarizin fluxes traverse the opposite ends of the armature while the fluctuating flux produced by the electromagnet flows undivided substantially lengthwise of and through the armature and wherein two air gaps are provided in each of the two paths for the polarizing flux and wherein only one of said air gaps is variable incident to the actuation of the armature.
  • a polarized relay comprising a single permanent magnet for producing a polarizing flux which forms two paths in parallel, a single armature, means for pivotally mounting said armature, a single electromagnet for producing fluctuating flux, the permanent magnet, electromagnet and armature being so constructed and arranged with respect to one another that the polarizing fluxes traverse the opposite ends of the armature while the fluctuating flux produced by the electromagnet flows undivided substantially lengthwise of and through the armature and wherein two air gaps are provided in each of the two paths for the polarizing flux and the armature is so shaped that one of the air gaps will remain constant while the other will be varied incident to the actuation of the armature.
  • a polarized relay comprising a single permanent magnet for producing a polarizing flux which forms two paths in parallel, a single armature, means for p-ivotally mounting said armature, a single electromagnet for producing fluctuating flux, the permanent magnet, electromagnet and armature being so constructed and arranged with respect to one another that the polarizing fluxes traverse the opposite ends of the armature while the fluctuating flux produced by the electromagnet flows undivided substantially lengthwise of and through the armature and wherein two air gaps are provided in each of the two paths for the polarizing flux and wherein the armature is L- shaped in section to vary the one of said air gaps incident to its actuation while keeping the other air gap constant.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
US377719A 1940-01-13 1941-02-06 Polarized relay Expired - Lifetime US2375586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE215008X 1940-01-13

Publications (1)

Publication Number Publication Date
US2375586A true US2375586A (en) 1945-05-08

Family

ID=5821740

Family Applications (1)

Application Number Title Priority Date Filing Date
US377719A Expired - Lifetime US2375586A (en) 1940-01-13 1941-02-06 Polarized relay

Country Status (5)

Country Link
US (1) US2375586A (hr)
BE (1) BE439070A (hr)
CH (1) CH215008A (hr)
FR (1) FR869139A (hr)
NL (1) NL55504C (hr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483658A (en) * 1945-12-18 1949-10-04 Price Electric Corp Polarized electromagnetic relay
US2773223A (en) * 1955-05-16 1956-12-04 Gen Dynamics Corp High impedance telephone substation ringer
US2832866A (en) * 1952-12-17 1958-04-29 Gen Railway Signal Co Polarized relay
US2844767A (en) * 1954-09-29 1958-07-22 Itt Telephone substation ringers
US2869050A (en) * 1952-01-04 1959-01-13 Magnetic circuits
US2884498A (en) * 1953-10-19 1959-04-28 Sigma Instruments Inc Electro magnetic devices
US3035958A (en) * 1959-11-05 1962-05-22 Phillips Petroleum Co Method of joining polyethylene pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982871A (en) * 1956-10-22 1961-05-02 Mckenzie & Holland Australia P Flasher relays

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483658A (en) * 1945-12-18 1949-10-04 Price Electric Corp Polarized electromagnetic relay
US2869050A (en) * 1952-01-04 1959-01-13 Magnetic circuits
US2832866A (en) * 1952-12-17 1958-04-29 Gen Railway Signal Co Polarized relay
US2884498A (en) * 1953-10-19 1959-04-28 Sigma Instruments Inc Electro magnetic devices
US2844767A (en) * 1954-09-29 1958-07-22 Itt Telephone substation ringers
US2773223A (en) * 1955-05-16 1956-12-04 Gen Dynamics Corp High impedance telephone substation ringer
US3035958A (en) * 1959-11-05 1962-05-22 Phillips Petroleum Co Method of joining polyethylene pipe

Also Published As

Publication number Publication date
CH215008A (de) 1941-05-31
NL55504C (hr)
BE439070A (hr)
FR869139A (fr) 1942-01-24

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