US3188424A - Relay construction - Google Patents

Relay construction Download PDF

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Publication number
US3188424A
US3188424A US191238A US19123862A US3188424A US 3188424 A US3188424 A US 3188424A US 191238 A US191238 A US 191238A US 19123862 A US19123862 A US 19123862A US 3188424 A US3188424 A US 3188424A
Authority
US
United States
Prior art keywords
relay
reed
core
coil
flange
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
US191238A
Other languages
English (en)
Inventor
Robert K Else
Taliste Arvo
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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 BE638981D priority Critical patent/BE638981A/xx
Priority to BE623208D priority patent/BE623208A/xx
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Priority to US191238A priority patent/US3188424A/en
Priority to GB34936/62A priority patent/GB1013789A/en
Priority to FR912348A priority patent/FR1345019A/fr
Priority to DEA42071A priority patent/DE1260027B/de
Priority to DE19631437495 priority patent/DE1437495A1/de
Application granted granted Critical
Publication of US3188424A publication Critical patent/US3188424A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/026—Arrangements for interrupting the ringing current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • 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
    • H01H51/281—Mounting of the relay; Encapsulating; Details of connections

Definitions

  • reed relays are fast operating they cannot be adjusted to achieve a particular percent make and break condition like a conventional telephone relay having adjustable contact springs.
  • reed relays ordinarily are characterized by their relatively low inductance. Accordingly, if a high inductance condition is required such as in the case of a battery feed relay the coil becomes relatively large and the overall relay structure bulky. Thiszis because in the ordinary reed relays the encapsulated reed switches are placed in the center of the core and therefore the diameter of the spool portion on which the coil is wound is correspondingly larger. The result of this large coil is that the resistance per turn is increased and the relay operating efliciency decreased.
  • the present relay construction solves the problems confronted-heretofore in connection with many reed relay applications.
  • the instant invention enables the reed relay to be used as a battery feed relay, a slow-to-release or a magnetic-latching relay for example by virtue of its unique construction.
  • the state of the art is advanced by being able to use the more reliable reed type relays in applications heretofore not used.
  • this innovation it is possible to have a matched telephone system, for example, which utilizes reed-type relays exclusively as. its switching element.
  • the principal object of the invention is to provide ;a reed relay which is particularly suitable as a pulsing battery feed relay in a telephone system.
  • Another object of the invention is to provide a reed relay which will operate as a slow-to-release relay or as a magnetic latching relay.
  • Stillanother object of the invention is to provide a reed relay which has a wide range of operating parameters and whose cost of manufacture is minimized.
  • the particular relay construction features a neat, compact, and easily assembled relay which includes the components: a frame structure or bobbin made of insulating material and having -a tubular section with a rectangular shaped flange, for instance, at each end; a core having a low resistance per turn ratio consisting of two or three windings; four, for instance, encapsulated gas filled reed switch capsules placed outside of the coil in a horizontal plane; and a corresponding relatively high inductance magnetic circuit. Furthermore, embedded in at least one flange of the frame structure are terminals to which the ends of the coil windings are secured.
  • the unique pulsing characteristics of this reed relay is attributed primarily to its low reluctant magnetic circuit which includes the components: a solid core made of a selective material positioned within the tubular section of the frame structure; two L-shaped flux concentrators which are connected to the ends of the core and extend over the vfour switch capsules; and the reed members of the switch capsules.
  • the flux concentrators materially reduce the reluctance in the magnetic circuit. Furthermore, they serve as a magnetic shield against adjacent stray fluxes. This characteristic results from extending them outside and over the reed switch capsules and the coil. Additional shielding if desired can be achieved by employing a cover can and placing it over the relay.
  • the material from which they are made is also -a contributed factor to the claimed pulsing possibilities.
  • the preferred material of the core and flux concentrators in the battery feed relay is a nickel-iron composition.
  • the preferred material for these parts in the slow-to-release relay is a magnetic-iron composition.
  • the material of the core in the magnetic latching relay is a high carbon steel composition and the corresponding flux concentrators thereof are preferably made of magnetic iron.
  • the relay according to the invention operates in the normal manner, that is, the reed switch capsules are actuated by the energization of the coil.
  • the coil includes three windings in order to provide balance between the resistance in the relay with that of the telephone line.
  • the slow-to-relese relay there are two windings in the coil.
  • the one winding is short circuited when intermediate time delays are desired, for example, or in cases where relatively long time delays are desired one winding is short circuited and the other includes a diode. With this arrangement delay times of 7.7 milliseconds to milliseconds can be obtained.
  • a con trol pulse will render the switch capsules in their operate condition and hold them by the remanent state of the core.
  • the switch capsule can be restored to their inoperative state by means of a subsequent control pulse, applied to a second windings, which demagnetizes the core and releases the switch capsules.
  • the magnitude of the demagnetizing pulse must be limited to present reoperating and latching the reed switch capsules by the second stable limit state of the core.
  • FIG. 1 shows a side view of the relay according to the invention.
  • FIG. 2 shows an exploded perspective view of the relay according to the invention.
  • the preferred embodiment of the relay constructionaccording to the inventionv includes a frame structure made of an insulating material, for instance a plastic, and formed as an integral part. It comprises a tubular section 10 and two end flanges 11 and 12. These flanges in the preferred embodiment are substantially rectangular shaped. integrally formed with flange 1 1 is an extension 13 which includes, for instance, tour apertures 24 and a slot 40. The apertures 24 receive terminal ends 22 of switch capsules 15 18. Furthermore, flange 11 has a recessed portion 42 (see FIG. 1) which receive flux concentrator 29, particularly leg 31 thereof. This particular recess corresponds to a similar shaped recess 14 formed in flange 12.
  • the frame strucin cludes: a solid core 23 extending within tubular section 10 of the frame structure; the aforementioned flux concentrators 25 and 29, and the reed members 21 and 2d of switch-capsules -r18.
  • the core is a solid piece and is made of a magnetic material. The composition of this material depends primarily on the use to which the relay will ultimately be put, that is, as a battery teed relay, a magnetic-latching relay or a slow to release relay.
  • Flux concentrators 2'5 and 29 Positioned at the ends of the core 23 are flux concentrators 2'5 and 29. Flux concentrator 29 is connected to the core by inserting screw '34 through aperture 33 of leg 31 and into tap hole 35. Similarly, flux concentrator Z5 'is connected to core 23 by inserting screw 56 through apertures 32 and 39 of leg 3&7 and keymember 24 respectively, and into a second tap hole of the core (not shown). Flux concentrators 25 and .29 includes each four apertures 28 and 44 corresponding in position to apertures 19 and .20 of the key member and flange 1d. Thus, the terminal ends 2-1 and 22 of the switch capsules extend After assembly the legs 27 and 31 of the flux concentrators lie Within the confines of the depressions in flanges 1.2 and 11 respectively.
  • the flux concen- .trator-s by being placed on the outside of the switch capsul'es provide in effect a magnetic shield for the relay and a substantial increase in inductance to the reed members of the switch capsules.
  • the coil used comprises one or more windings de-,
  • a switching device comprising: a frame structure made of insulating material and having a tubular section with a flange at each end thereof, at least oneof said flanges having adepression and the other including at least two apertures located substantially along one section of the periphery thereof; a key member made of'insulating material and being insertable withirisaid depression, said key member having also apertures corresponding to said apertures in said flange; a core made of magnetic material and positioned within said tubular section; terminal means embedded in at leastone of said flanges; .a coil wound on said tubular section and comprising at least one ward each other; said flux concentrators including aper tures corresponding in location to said apertures in said key member and said flange; and at least two glass encapsulated reed switches havingcooperating contact ends and terminal ends, said contact ends being normally opened member, said flange and said. flux concentrators so ask) be in a plane intermediate said coil and said other end of said flux concentrators and to
  • ROBERT K. SCHAEFER Acting Primary Examiner.
  • BERNARD A. GILHEANY Examiner.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
US191238A 1962-04-30 1962-04-30 Relay construction Expired - Lifetime US3188424A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE638981D BE638981A (en)) 1962-04-30
BE623208D BE623208A (en)) 1962-04-30
US191238A US3188424A (en) 1962-04-30 1962-04-30 Relay construction
GB34936/62A GB1013789A (en) 1962-04-30 1962-09-13 Improvements in and relating to magnetic reed relay constructions
FR912348A FR1345019A (fr) 1962-04-30 1962-10-16 Construction de relais
DEA42071A DE1260027B (de) 1962-04-30 1963-01-12 Schutzrohrkontaktrelais
DE19631437495 DE1437495A1 (de) 1962-04-30 1963-10-26 Weckerausloeseschaltung mit Reedrelais

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191238A US3188424A (en) 1962-04-30 1962-04-30 Relay construction

Publications (1)

Publication Number Publication Date
US3188424A true US3188424A (en) 1965-06-08

Family

ID=22704671

Family Applications (1)

Application Number Title Priority Date Filing Date
US191238A Expired - Lifetime US3188424A (en) 1962-04-30 1962-04-30 Relay construction

Country Status (4)

Country Link
US (1) US3188424A (en))
BE (1) BE623208A (en))
DE (1) DE1260027B (en))
GB (1) GB1013789A (en))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289128A (en) * 1965-10-14 1966-11-29 Automatic Elect Lab Reed relay having preliminarily operating contacts
US3303442A (en) * 1965-11-26 1967-02-07 Automatic Elect Lab Reed relay construction
US3359463A (en) * 1964-09-24 1967-12-19 Navigation Computer Corp Multi-pole reed switch relay
US3372313A (en) * 1964-12-02 1968-03-05 Honeywell Inc Sequential multiple contact single core switch apparatus utilizing glass enclosed contacts
US3430167A (en) * 1966-02-16 1969-02-25 Int Standard Electric Corp Magnetic coupling for multiple contact relays
US3593231A (en) * 1966-12-14 1971-07-13 Cutler Hammer Inc Convertible sealed reed switch relay
US4319305A (en) * 1979-06-20 1982-03-09 Burroughs Corporation Printing circuit board mounting systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985733A (en) * 1959-02-19 1961-05-23 Bell Telephone Labor Inc High leakage resistance electromagnetic relay
US3002066A (en) * 1959-07-01 1961-09-26 Bell Telephone Labor Inc Magnetically controlled switching device
US3030468A (en) * 1957-07-25 1962-04-17 Int Standard Electric Corp Electrical multiple relay unit using sealed reed contacts
US3033957A (en) * 1960-07-12 1962-05-08 Gen Electric Electromagnetic relay

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021078B (de) * 1956-09-27 1957-12-19 Siemens Ag Elektromagnetisches Relais und seine Verwendung in einer Schaltungsanordnung zur Waehlerpruefung
DE1064635B (de) * 1956-09-28 1959-09-03 Siemens Ag Schutzrohrkontaktrelais mit mehreren Schutzrohrkontakten
DE1116297B (de) * 1960-04-16 1961-11-02 Telefonbau & Normalzeit Gmbh Anordnung einer Vielzahl von Mehrfachrelais zu einer Baueinheit als Kreuzpunktschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030468A (en) * 1957-07-25 1962-04-17 Int Standard Electric Corp Electrical multiple relay unit using sealed reed contacts
US2985733A (en) * 1959-02-19 1961-05-23 Bell Telephone Labor Inc High leakage resistance electromagnetic relay
US3002066A (en) * 1959-07-01 1961-09-26 Bell Telephone Labor Inc Magnetically controlled switching device
US3033957A (en) * 1960-07-12 1962-05-08 Gen Electric Electromagnetic relay

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359463A (en) * 1964-09-24 1967-12-19 Navigation Computer Corp Multi-pole reed switch relay
US3372313A (en) * 1964-12-02 1968-03-05 Honeywell Inc Sequential multiple contact single core switch apparatus utilizing glass enclosed contacts
US3289128A (en) * 1965-10-14 1966-11-29 Automatic Elect Lab Reed relay having preliminarily operating contacts
US3303442A (en) * 1965-11-26 1967-02-07 Automatic Elect Lab Reed relay construction
US3430167A (en) * 1966-02-16 1969-02-25 Int Standard Electric Corp Magnetic coupling for multiple contact relays
US3593231A (en) * 1966-12-14 1971-07-13 Cutler Hammer Inc Convertible sealed reed switch relay
US4319305A (en) * 1979-06-20 1982-03-09 Burroughs Corporation Printing circuit board mounting systems

Also Published As

Publication number Publication date
BE623208A (en))
DE1260027B (de) 1968-02-01
GB1013789A (en) 1965-12-22

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