US1664104A - Electromagnetic device - Google Patents

Electromagnetic device Download PDF

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Publication number
US1664104A
US1664104A US691797A US69179724A US1664104A US 1664104 A US1664104 A US 1664104A US 691797 A US691797 A US 691797A US 69179724 A US69179724 A US 69179724A US 1664104 A US1664104 A US 1664104A
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US
United States
Prior art keywords
armature
electromagnet
magnetic
leg
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
US691797A
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English (en)
Inventor
Eugene R Carichoff
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US691797A priority Critical patent/US1664104A/en
Priority to US755063A priority patent/US1779659A/en
Priority to FR592938D priority patent/FR592938A/fr
Priority to GB3622/25A priority patent/GB228947A/en
Priority to DEA44159D priority patent/DE506067C/de
Application granted granted Critical
Publication of US1664104A publication Critical patent/US1664104A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact

Definitions

  • My invention relates to electromagnetic devices, and particularly to electromagnetic switches and the'like; and hasfor ts principal object an improved. arrangement and construction of parts whereby such devices are rendered more simple andv reliable and may be inexpensivel manufactured, easily assembled, and readi y maintained in operative' condition.
  • FIG. 2 shows a front view of the switch with cer tain parts broken awa to better illustrate .the details of construction
  • Fig. 3 shows. the relative positions of the several operating parts after energization of the switchoper- ,ating electromagnet
  • Fig. 4 is a more detailed erspective view of the yielding contact mec anism with which one of the switch elements is provided. 7
  • the several individual parts of the operating electromagnet 15' are so designed and arranged as to be supported in operative relation by the two spaced supports 22 and '23 each of which has one end fixed in the supporting base 10.
  • the armature 2O isbent intermediate its ends into an L shape as shown in the drawing and is provided near the bend with oppositely, disposed openings 24 and 25 for loosely engaging an intermediate ports 22 and 23 respectively so as to be "rotatably sup orted thereby with a bias towards the liase 10 due to the overhanging bent leg.
  • This feature of construction simplifies both the manufacture and assembly of the movable armature 20 since the usual cylindrical bearin pin is entirely eliminated.
  • the electromagnet 15 may be individually assembled as a unit which is easily secured in operative magnetic relation with the armature 20.
  • the operating electromagnet' 15 may be as easily importance in an electromagnetic device having a single armature, they also readily permit the provision of the second'movable magnetic member, or armature 21 which is arranged to be magnetically attracted by the electromagnet 15 subsequent to the attraction of the armature 20.
  • This arrangement is obtained by rotatably supporting the armature 21 at the free end of the magnetic return member 19 by means of the strap 29 and the screws 30 and 31 so that its path of movement intersects the path of movement of armature 20.
  • the adjustable screw 34 is located near the end of the bent leg of armature 20 and co'nstitutes an adjustable stop between the bent leg of armature 20 and the member 19.
  • the movable switch elements 13 and 14 are carried respectively by the armatures 20 and 21, the switch element 13 being secured upon the bent'leg of" armature'20 by the screw 35 and the pin 36- and the switch element 14 being mounted as shown upon the insulation pleces 37 with which the armature 21 is rovided.
  • the movable switch element 13 comprises the supporting strip 38, the spring 39 and the contact 40.
  • This form of contact mechanism is fully described and broadlyclaimed in my copending application, Serial No. 755,063, filed December 10, 1924, which'is adivision of the present application. It will. be observed that the supporting strip 38 has, as shown, the left end curved to form an open cylindrical bearing and the right end bent up to form a hooked stop.
  • the contact 40 is provided with a channel member 41 into which is inserted the cross pin 42 and the bent arm 43.
  • cross pin 42 may be readily inserted in the open cylindrical bearing of the supporting strip 38, the arm 43 engaged with the outer si e of the bent up stop, and the compression spring 39 interposed between the inner side of the stop and an intermediate portion of the contact 40 soas to maintain the cross pin 42 and the arm 43 in yielding engagement with the supporting strip 38.
  • either or both of the stationary switch elements 11 and 12 may be provided with any of the usual types of arc suppressing arrangements to permit interrupting high power electric circuits.
  • the stationary contact 11 is provided with a blow out coil 44, an arcing horn 45 and the interlocking insulating members 46 and 47 which form an arc chute of restricted passage.
  • Arm 43 also serves as an arcing horn on the moving contact member 13.
  • the operation of the switching mechanism embodying my invention is as follows: Upon the energization of the winding 16 the movable armature 20 receives the major portion of the operating flux of electromagnet 15 due to the lower reluctance of the path through this armature.
  • Armature 20 is thereby attracted towards the core 18 so as to bridge the spaced apart poles at the left hand ends of the magnetic return member 19 and the core 18, and due to the loose engagement of the openings 24 and 25 with the supports 22 v and 23 the armature 20 is permitted to rotate into abutting engagement with the core 18 and the upper end of the magnetic return member 19, thereby closing one of the-multiand also operating the movable switch element 13 into contact-with the'stationary element 11.
  • variable air gap 33 which normally separates the armatures 20 and 21 is greatly reduced and this causes an increasing portion of the operating' flux of the electromagnet 15 to pass ple flux paths through the electromagnet 15 armature 21 so as to attract the latter intov from the moving end of armature 20 to the abutting engagement with the lower end of armature and magnetic member 19 immediatel' after the operation of the armature 20. he resulting movement of armature 21 both closes the variable air. gap 33 between armatures 20 and 21 and also the second flux path through the electromagnet 15 as well as moves the switch element 14 from its normal contacting enga' ment with stationary switch element 12.
  • a magnetic structure comprising a fixed support and a ,magnetic return member removably secured to'the free end of the support, an-
  • electromagnet having one end of the core thereof secured to said return member with the free end of the core disposed adjacent
  • an electromagnetic device the combination with a pair of spaced apart supporting members each having one end fixed, of a magnetic member movably su ported thereby for movement between he said spaced apart supporting members intermediate the ends thereof, an electromagnet havmg a magnetic return member secured at one end to the free ends of said sup orts with the electromagnet supported thereby in ma netic attractive relation with said movably supported magnetic member, and a second magnetic member movably supported at the other end of said magnetic return member in magnetic attractive relation with the said first movable magnetic member.
  • An electromagnetic device comprising a pair of spaced apart su porting members, each having one end fixe a substantially L- 'shapcd magnetic frame memberhaving one end of one leg thereof secured to the free ends of said supports and interconnecting the same, an armature pivotally supported on said supports adjacent the said interconnecting end of the magnetic frame for movement between the supporting members, and an electromagnet having a coresecured to the other leg of the said frame with the free end of the core in magnetic attractive relation to said armature.
  • An electromagnetic device comprising a base, a supporting member for the dev ce disposed at an angle to the base and having one end thereof secured to the base, a substantially L-shapedmagnetic frame member, means for removably securing one end -of the first leg of said frame member to the free end of said supporting member, at least one of said members provided with an aperture for the reception of an armature between the members, an electromagnet having a core secured to the second leg of said frame and disposed substantially parallel with the said first leg with the free end of the core of the electromagnet adjacent to said base, and a substantially L shaped armature member pivotally mounted in the said aperture with one leg thereof adjacent the free end of said core for movement toward and away therefrom responsively to the ener ization of the electromagnet, the other leg of said armature member disposed substantially parallel to the said first leg of said frame to rovide means for biasing the said one end 0 the armature through the said openings in said armature operate the latter after and provided with means for re
  • An electromagnetically operated device comprising an electromagnet, and two magnetic rotatable members arranged to be magnetically operated thereby in intersecting paths with air gaps of different lengths therein such that an increasing portion of the operating flux of said electromagnet passes from the first of said members upon operation thereof to the second member to the operationof the former.
  • An electromagnetically operated device comprising an electromagnet, and a pair of rotatable armatures mounted for movement in intersecting paths and arranged to be operated into abutting engagement with each other under the magnetic influence of said electromagnet whereby the operating flux of one armature is transmitted through a movable portion of the other armature to insure the successive operation thereof.
  • An electromagnetic device comprising a winding, a magnetic structure therefor, and two independently rotatable magnetic members having intersecting paths "of movement and being normally disposed with air gaps of different lengths between the members and, a common pole of said magnetic structure to be magnetically attracted thereby successively to complete multiple magnetic flux paths through the said pole upon the energization of said winding.
  • An electromagnetic device comprising, a winding, a magnetic structure therefor providing two flux paths and including a movable armature partly in each of said paths and a second movable armature entirely in one of said paths, said second arina ture'havinga path of movement intersecting the path of movement of the first armature to receive operating flux from the first armature, thereby insuring the successive operation of said first'and second armatures upon the energization of said winding.
  • An electromagnetic device comprising a substantially F shaped magneticstructure having an energizing winding disposed on the intermediate arm thereof, and a pair of armatures, each pivotally mounted at the end of a different one of the remaining arms of, the magnetic structure and normally dis-.
  • An electromagnetic device comprising, a substantially F shaped magnetic structure having an energizing winding disposed on the intermediate arm thereof, and a pair of armaturcs, each pivotally mounted at the end of a different one of the remaining arms of the magnetic structure and successively movable under the magnetici attraction of said structure, the first into abtitting engagement with said intermediate arm and the second into abutting engagement with the said first armature.
  • An electromagnetic device comprising an L-shaped magnetic frame, a magnet core having one end joined to an intermediate portion of one leg of said frame and extending in parallel alignment with the other leg, a pair of armatures, one rotatably supported at each end of said frame and oppositely disposed from a leg thereof, and an energizing winding on said core for successively attracting one armature into abutting engagement witl said core and the other armature into abutting engagement with said one armature.
  • An electroina netic device comprising 7 a supporting mem ier, a substantially L- shaped magnetic frame member having one end of one leg thereof removably secured to the said su port, at least oneof said memerture' at the said secured ends oftlie mem ers for the reception of an armature between the members, an electromagiiet having a core secured to the other leg of the said frame with the free end of the core adjacent to said support, an
  • an electromagnetic device the combination of a supporting base, an operating electromagnet having a magnetic structure providing a pairof spaced apart poles, and means comprising spaced apart members ex tending between'the base and the magnetic structure of the electromagnet for mounting mentwith one of said poles and in attractive relation with the other of said poles.
  • An electromagnetic device comprising a base, a pair of s )aced apart supports each secured at one en to the base and extending therefrom, a substantially Lv-shaped' magnetic frame member having the end of one leg thereof secured to the'free ends of core secured to said other leg and extending substantially parallel with said supports with the other leg of the frame member extending substantially parallel with the base, an electromagnet having a of said frame said first leg of said frame toward said base, and a substantially L shaped armature member pivotally mounted intermediate its ends with one leg ofthe armature extending between said supports adjacent the end of said first leg of the frame member into magnetic attractive relation with the free end of the core of said electromagnet.
  • an electromagnetic switch the combination of a supportmg base, a switch contact mounted thereon, an electromagnet having a magnetic structure providing a pair of spaced apart poles, means for mounting the electromagnet with the'said pair of poles in opposing spaced relation with the base, an armature pivotally mounted in abutting engagement with one of said poles and extending in the space between the said pair of poles and the base in attractive relation with the other of said poles, and a switch contact mounted on said armature in coo crating circuit controlling relation with sai contact mounted on the base.
  • an operating electromagnet havin .a magnetlc structure providing a pair'o spaced apart poles, means for mounting the electromagnet with the said pair of poles in opposing relation with the base, a'substantially L.- shaped armature pivotally mounted intermediate its euds'with one leg extending in the 's ace between the said pair of poles and t e base in abutting engagement with one of said poles and in'attractive relation with the other ot'said poles and a contact mounted on the other lego said armature in cooperating circuit controlling relation with the said contact mounted on the base.
  • a normally open electromagnetic switch comprising-a vertical base, a switch contact element mounted thereon, a pair of spaced apart supports each secured at one end to the base and extending horizontally therefrom below said contact, a substantially L-shaped magnetic frame member having one leg secured to the free ends of said supports in substantially horizontal alignment therewith with the other leg extending below the supports, an electromagnet having a core secured to the said other leg of said frame member with the free end of the core extending towards said base, and a substans tially L-shaped armature pivotally mounted intermediate its ends adjacent said one end of said frame member with one leg thereof extending between said supports in abutting engagement with said one end of said frame member and in magnetic attractive relation with the free end of said core and I with the other le extending above said frame member for biasing the said first leg of the armature away from the free end of said core, and a second switch element mounted upon the said other leg of said armature to be operated into circuit closing engagement with said first contact upon the attraction of the armature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US691797A 1924-02-09 1924-02-09 Electromagnetic device Expired - Lifetime US1664104A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US691797A US1664104A (en) 1924-02-09 1924-02-09 Electromagnetic device
US755063A US1779659A (en) 1924-02-09 1924-12-10 Switch-contact mechanism
FR592938D FR592938A (fr) 1924-02-09 1925-02-06 Perfectionnements aux disjoncteurs et autres dispositifs électromagnétiques
GB3622/25A GB228947A (en) 1924-02-09 1925-02-09 Improvements in and relating to electromagnetic devices
DEA44159D DE506067C (de) 1924-02-09 1925-02-10 Elektromagnetischer Schalter mit zwei zu einem gemeinsamen Magnetsystem gehoerenden Ankern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691797A US1664104A (en) 1924-02-09 1924-02-09 Electromagnetic device

Publications (1)

Publication Number Publication Date
US1664104A true US1664104A (en) 1928-03-27

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ID=24778015

Family Applications (1)

Application Number Title Priority Date Filing Date
US691797A Expired - Lifetime US1664104A (en) 1924-02-09 1924-02-09 Electromagnetic device

Country Status (4)

Country Link
US (1) US1664104A (de)
DE (1) DE506067C (de)
FR (1) FR592938A (de)
GB (1) GB228947A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571803A (en) * 1949-01-18 1951-10-16 Gen Electric Electromagnet control mechanism with two armatures
US2590523A (en) * 1947-10-11 1952-03-25 Westinghouse Electric Corp Circuit interrupter contact pressure increasing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590523A (en) * 1947-10-11 1952-03-25 Westinghouse Electric Corp Circuit interrupter contact pressure increasing device
US2571803A (en) * 1949-01-18 1951-10-16 Gen Electric Electromagnet control mechanism with two armatures

Also Published As

Publication number Publication date
DE506067C (de) 1930-08-28
GB228947A (en) 1925-10-01
FR592938A (fr) 1925-08-12

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