US3284738A - Reed contact switching unit having resilient stud means for securing coil - Google Patents

Reed contact switching unit having resilient stud means for securing coil Download PDF

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Publication number
US3284738A
US3284738A US396581A US39658164A US3284738A US 3284738 A US3284738 A US 3284738A US 396581 A US396581 A US 396581A US 39658164 A US39658164 A US 39658164A US 3284738 A US3284738 A US 3284738A
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US
United States
Prior art keywords
stud
coil
component
permanent magnet
reed
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
US396581A
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English (en)
Inventor
Zerfass Andreas
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.)
International Standard Electric Corp
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International Standard Electric Corp
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Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3284738A publication Critical patent/US3284738A/en
Anticipated expiration legal-status Critical
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    • 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
    • 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
    • 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
    • H01H51/284—Polarised relays

Definitions

  • This inventionj relates in general to reedrelays and in particular to an arrangement of reed contacts for use in either normally open or normally closed relays wherein a permanent magnet is arranged juxtaposed to the contacts and the entire arrangement comprising the contacts and the magnet make up a replaceable modular unit.
  • reed contact relays equipped with a permanent magnet and which operate, depending on the intensity of the magnetism of the permanent magnet as non-operative or retentive relays.
  • the reed contacts and the permanent magnet are accommodated within the exciter coil and are encircled by said coil.
  • Reed contacts and permanent magnet are inserted individually into the relay, fixed within the coil body and weakened to a certain magnetizing magnitude of the permanent magnet in an alternating field, together with the coil body.
  • the object of the invention is to eliminate the disadvantages of the arrangement known. This is achieved, according to the invention, that the reed contact or contacts with the permanent magnet, producing a constant magnetic field, are enclosed in a poured resin block in such a way that, with consideration to maintain a small but defined distance of the individual components to each other, the terminal ends of the reed contact or contacts protrude from the finished resin block, and that the resin block is designed thus that on one side a firm stud and on the other side a movable or elastic stud is provided which can be bent back when inserting the thus formed component into a coil body and, after insertion is completed, engages in rear of a projection of the coil body, and thereby fixes the component in its longitudinal direction.
  • the resin used for the component shows the temperature constancy of the coil body the permanent magnet thus surrounded by the resin will be set, depending on the use either as a non-operative closed-circuit relay or a retentive relay, outside the coil body in an alternating field to a predetermined magnetic magnitude so that the pull-up and drop values of the reed contacts, enclosed together with the permanent magnet in the resin, remain within the tolerances required.
  • the invention shows the advantage that when using a certain resin the varying ditterence between the heat expansion cofiicients of the individual elements are balanced. By fixing the individual elements in one compact block a subsequent mechanical shifting and consequently a change of the magnetic values of said elements is impossible. Another large advantage is obtained from the elastic stud protruding from a part of the resin block which fixes, in cooperation with the firm stud, the complete component within a coil body or in the longitudinal direction for a corresponding fitting within a coil, wound without a coil body.
  • FIG. 1 shows a component according to the invention
  • FIG. 2 shows a component according to FIG. 1, seen from the side
  • FIG. 3 shows a component according to FIG. 1, seen from the front
  • FIG. 4 shows a component according to FIG. I, seen from the front side as per FIG. 3, inserted into a coil body.
  • FIG. 5 shows another example according to FIG. 1 in lateral view
  • FIG. 6 shows a component as shown in FIG. 5, but seen from top
  • FIG. 7 shows a component according to FIG. 5, seen from the front side
  • FIG. 8 shows a component according to FIG. 5 as represented per FIG. 7, inserted into a coil body.
  • FIG. 1 and the other figures show a resin block 1, called in the following paragraphs also a component.
  • reed contacts 2 and a permanent magnet 3 are accommodated in such a way that the terminals 4 and 5 of the reed contacts serving for connection protrude from said resin block.
  • the component shows on one end a firm stud 8 and on the other end an elastic stud 6.
  • an elastic arm 7 is provided which is located between the grooves 11 and 12.
  • FIG. 2 the component described in FIG. 1 is seen from the side in section, providing a hollow space 10 in rear of the elastic stud 6 into which said elastic stud 6 can be bent, when inserting the component into the coil body, shown in FIG. 4.
  • FIG. 3 shows the component from the front side whereby the individual elements, concentrated within the component are shown in dotted lines.
  • FIG. 4 shows the component as per FIG. 3, inserted into a coil body 9.
  • the elastic stud 6 can be bent into the hollow space 10 of the resin block 1, when inserting into the coil body, and springs back after the edge 6" of said stud 6 engages in rear of the exterior portion of the flange of the coil body 9 or into a projection therefor provided.
  • the component 1 inserted-thus into the coil body is fixed within said body against shifting in longitudinal direction.
  • FIG. 5 and the other FIGS. 6 to 8 show a component 1 accommodating only one reed contact 2 and a permanent magnet 3.
  • the terminals 4 block.
  • The'component 1 "shows only small differences compared with the component 1 and those parts showing such dilferences are marked with the same references as in the preceding FIGS. 1 to 4, but a prime has been added to said'references.
  • the firm stud of the component 1' is marked with 8 and the elastic stud with 6, the elastic arm with 7' and the space in rear of the elastic stud 6 with 10'.
  • the indents rendering the elastic properties to the arm 7' of the component 1' are marked with 11 and 12; Therefore no separate aspects arise for the description of FIGS. 6 and 7 compared with the description for the FIGS. 1 to 3, consequently no closer explanation of said FIGS. 6 and 7 is necessary.
  • FIG. 8 shows a component accordingto FIG. inserted into a coil body 9'.
  • the component 1' is not yet completely inserted into the coil body 9 so that the elastic stud 7' is shown bending into the hollow space
  • the stud 7 will be in a position indicated by a dotted line and marked 7
  • the components 1 or 1 can also be inserted into a wound coil without coil body, when the external and internal dimensions of the coil are fitted to the components 1 or 1', respectively. It is also possible, in contrast to the explained and described examples, to combine more than two reed contacts with one or several permanent magnets to a component according to the invention, not particularly shown on the drawing.
  • a reed relay assembly comprisinga plurality of reed contacts contained in glass tubes, permanent magnet means arranged parallel to said tubes, resin block means for mounting said tubes and said permanent magnet in a juxtaposed, spaced apart relationship, terminals connected to said contacts and protruding from said vresin block, reed relay operating coil means, said resin block.
  • said stud means comprising a resilient stud on one end of said block and a firm stud on the other end of said block, and means on said coil for engaging said studs when said block is fully inserted in said coil.
  • said stud means comprises at least one resilient stud.
  • re silient stud comprises a stud integrally mounted to a References Cited by the Examiner UNITED STATES PATENTS 2,870,287 1/1959 Corbitt et a1. 200-87 3,015,707 1/ 1962 Perreault 200-87 3,121,147

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
US396581A 1963-09-20 1964-09-15 Reed contact switching unit having resilient stud means for securing coil Expired - Lifetime US3284738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST021098 1963-09-20

Publications (1)

Publication Number Publication Date
US3284738A true US3284738A (en) 1966-11-08

Family

ID=7458849

Family Applications (1)

Application Number Title Priority Date Filing Date
US396581A Expired - Lifetime US3284738A (en) 1963-09-20 1964-09-15 Reed contact switching unit having resilient stud means for securing coil

Country Status (6)

Country Link
US (1) US3284738A (fr)
AT (1) AT261721B (fr)
BE (1) BE653299A (fr)
DE (1) DE1251438B (fr)
GB (1) GB1053814A (fr)
NL (1) NL6410890A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483491A (en) * 1967-04-27 1969-12-09 Int Standard Electric Corp Sealed reed relay and method of manufacturing the same
US3569880A (en) * 1968-09-16 1971-03-09 Rucker Co Magnetically operated current sensor
US3593231A (en) * 1966-12-14 1971-07-13 Cutler Hammer Inc Convertible sealed reed switch relay

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870287A (en) * 1956-02-13 1959-01-20 Aerojet General Co Electrical device
US3015707A (en) * 1957-11-19 1962-01-02 Bell Telephone Labor Inc Relay
US3121147A (en) * 1960-11-07 1964-02-11 Int Standard Electric Corp Glass-sealed reed type relay module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870287A (en) * 1956-02-13 1959-01-20 Aerojet General Co Electrical device
US3015707A (en) * 1957-11-19 1962-01-02 Bell Telephone Labor Inc Relay
US3121147A (en) * 1960-11-07 1964-02-11 Int Standard Electric Corp Glass-sealed reed type relay module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593231A (en) * 1966-12-14 1971-07-13 Cutler Hammer Inc Convertible sealed reed switch relay
US3483491A (en) * 1967-04-27 1969-12-09 Int Standard Electric Corp Sealed reed relay and method of manufacturing the same
US3569880A (en) * 1968-09-16 1971-03-09 Rucker Co Magnetically operated current sensor

Also Published As

Publication number Publication date
BE653299A (fr) 1965-03-22
NL6410890A (fr) 1965-03-22
AT261721B (de) 1968-05-10
DE1251438B (fr)
GB1053814A (fr)

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