US3902144A - Resilient mounting arrangement for the non-movable magnetic member of an electromagnetic switching apparatus - Google Patents

Resilient mounting arrangement for the non-movable magnetic member of an electromagnetic switching apparatus Download PDF

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Publication number
US3902144A
US3902144A US464198A US46419874A US3902144A US 3902144 A US3902144 A US 3902144A US 464198 A US464198 A US 464198A US 46419874 A US46419874 A US 46419874A US 3902144 A US3902144 A US 3902144A
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US
United States
Prior art keywords
disposed
magnetic member
housing
mounting
movable
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
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US464198A
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English (en)
Inventor
Gert Fischer
Siegfried Seidel
Fritz Pollmann
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Siemens AG
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Siemens AG
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Filing date
Publication date
Priority claimed from DE19732321178 external-priority patent/DE2321178C3/de
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of US3902144A publication Critical patent/US3902144A/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke

Definitions

  • ABSTRACT an electromagnetic switching apparatus including a housing, stationary and movable electrical contacts disposed therein, a movable magnetic switching member disposed with the movable contacts on a carrier bridge, a non-movable magnetic non-switching member on which the excitation coil and coil form of the apparatus are disposed, and elongated support rods each having resilient grommets disposed thereon for mounting the non-movable magnetic member in the housing, the improvement comprising lateral mounting members extending outwardly from opposing sides of the non-movable member, having longitudinal apertures for receiving the rods and grommets and thereby resiliently mounting the non-movable member within the apparatus housing.
  • the grommets may include planar shaped support portions for resiliently mounting the coil form, the resilient layer members or leaf springs may be provided for biasing the coil form towards the non-movable member and further resiliently mounting the latter.
  • Removable mounting brackets for both the leaf springs and return springs for the movable magnetic member may also be provided.
  • This invention relates generally to electromagnetic switching apparatus, and in particular to an improved resilient type mounting arrangement for the nonmovable magnetic member of such an apparatus.
  • German Auslegeschrift No. 1,259,439 discloses an electromagnetic switching apparatus in which a pair of support rods, each having a length greater than that of the non-movable magnetic member of the apparatus, are disposed through apertures provided therein for supporting the non-movable magnetic member in the apparatus housing.
  • Grommets fabricated from rubber or another resilient material are disposed on the support rods between the latter and the nonmovable member to provide a resilient mount for the magnetic member. The thickness of the support rods in such an arrangement is limited, however, and the surface area thereof contacting the grommets is small.
  • the choice of the types of resilient materials from which the grommets may be fabricated is lim ited by the surface area of the rods available for engagement with the grommets with respect to the resiliency of the mount desired for the non-movable magnetic member. It is desireable, however, that the resil ient mount be so designed that the choice of resilient type materials which may be utilized to fabricate the grommets is greatly increased and the resiliency of the mount desired for the non-movable member and the resiliency of the material used to fabricate the grommets can be better coordinated.
  • an electromagnetic switching apparatus which includes a housing; stationary and movable electrical contacts disposed therein; a movable magnetic switching member disposed with the movable electrical contacts on a carrier bridge; a non-movable magnetic non-switching member on which the excitation coil and coil form of the apparatus are disposed; and elongated support rods each having resilient grommets disposed thereon for mounting the non-movable magnetic member in the housing of the apparatus.
  • the improvement of the invention comprises the provision of lateral mounting members which are coupled to and extend outwardly from opposing sides of the non-movable magnetic member. These mounting members include elongated apertures extending longitudinally therethrough for receiving said support rods and grommets, and thereby resiliently mount the non-movable magnetic member in the apparatus housing.
  • the grommets may include an outwardly extending planar-shaped portion, disposed substantially parallel to the longitudinal axis thereof, for supporting the coil form in a resilient manner within the housing.
  • a plurality of resilient layer members may also be interposed between the coil form and the apparatus housing opposite the grommets for further resiliently mounting the non-movable mag netic member.
  • spring means may be utilized to further resiliently mount the non-movable member within the housing and bias the coil form towards the member.
  • Removable mounting brackets having threaded apertures for coupling thereto an auxiliary switching apparatus are utilized to mount both the spring means and return springs for the movable magnetic member within the housing.
  • FIG. 1 is a front view, partly in section, of an electromagnetic switching apparatus constructed according to the invention
  • FIG. 2 is a side view, partly in section, of the apparatus of FIG. 1;
  • FIG. 3 is a top cross-sectional view of the apparatus illustrated in FIGS. 1 and 2;
  • FIG. 4 is an end view of a resilient grommet con structed according to the invention.
  • FIG. 5 is a longitudinal, cross-sectional view of the grommet of FIG. 4;
  • FIG. 6 is a top plan view of the grommet shown in FIGS. 4 and 5;
  • FIG. 7 is a side view of a movable mounting bracket constructed according to the invention.
  • FIG. 8 is a top plan view of the bracket of FIG. 7;
  • FIG. 9 is an end view of the bracket shown in FIGS. 7 and 8.
  • FIGS. l3 there is shown an electromagnetic switching apparatus comprising a housing, generally designated 1, in which stationary and movable electrical contacts, 2 and 2a, respectively, are disposed.
  • An arc quenching arrangement, generally designated 3, of known type is provided for extinguishing current arcs produced during opening of the switching apparatus.
  • a movable magnetic switching member 4 is disposed with movable contacts 2a and a contact bridge 5 on a movable carrier bridge 6.
  • a non-movable magnetic non-switching member 7 is disposed therebelow in housing I and supports a coil 8 and excitation coil 9 therein.
  • Members 10 include longitudinal apertures for receiving rods 11 and grommets l2 and thereby providing a resilient mount for member 10 in housing 1.
  • Each of the support rods 11 is coupled to a base plate 14 in housing 1 by means ofa fastening screw 15 and a pair of bearing blocks I3 coupled thereto.
  • each of grommets 12 include an annular flange 29 and may be provided with an outwardly extending planar-shaped, rectangular portion 16 integrally formed therewith for supporting coil form 8 and coil 9 in a resilient manner within housing 1.
  • Portion 16 is disposed substantially parallel to the longitudinal axis of grommet 12 in a recess 17 provided in coil form 8 and serves as a seat for the latter on member 10.
  • Portion 16 also engages the top surface of lateral mounting member 10, the latter being received as shown in FIG. 1 in the slot formed by the portion between itself and the body of the grommet.
  • This grommet construction greatly simplifies the switching apparatus configuration by reducing the number of parts which are required for mounting the apparatus components within housing 1.
  • a plurality of layer members 30, fabricated from resilient material, are interposed between housing 1 and coil form 8 opposite grommets l2 and portions 16.
  • These layer members may be replaced, if desired, by spring means, illustrated as leaf springs 18, laterally displaced with respect to grommets 12 and joined by means of a rivet connection 20 to a removable mounting means, illustrated as mounting brackets 19, which are slidably disposable in housing 1. As shown in detail in FIGS.
  • bracket 19 is U-shaped and is provided with sheared-out lugs 21 which detent in a slot 22 in housing 1 to secure bracket 19 therein, and a support portion 23 disposed perpendicular to the surface of the bracket for the return spring 24 of movable magnetic member 4. Threaded apertures 25 are provided for receiving the fastening screws 26 of an auxiliary switch extension 27 (see FIG. 2), thereby assuring a secure attachment of the switches even in a housing having a relatively thin wall.
  • Each of springs 18 engages a hook type projection 28 formed on coil form 8 and is flexed into the position illustrated by the dotted lines in FIG. 1 when the base plate of the apparatus is secured in place. Coil form 8 is thus pushed against portions 16 of the grommets 12. Brackets 19 also simplify the construction of the switching apparatus in that no separate mounting brackets are necessary for both the return springs 24 and leaf springs 18.
  • an electromagnetic switching apparatus including a housing, stationary and movable electrical contacts disposed therein, a movable magnetic member disposed with the movable electrical contacts on a carrier bridge, a U-shaped non-movable magnetic member on which the excitation coil and coil form of the apparatus are disposed, and elongated support rods having resilient grommets disposed thereon for mounting the non-movable magnetic member in the apparatus housing, the improvement comprising,
  • mounting members integrally formed with and extending laterally outward from opposing sides of said non-movable magnetic member beyond the base thereof, said mounting members comprising part of said non-movable magnetic member and including elongated apertures extending longitudinally therethrough in which said grommets are inserted for resiliently mounting said non-movable magnetic member in said housing.
  • an electromagnetic switching apparatus including a housing, stationary and movable electrical contacts disposed therein, a movable magnetic member disposed with the movable electrical contacts on a carrier bridge, a non-movable magnetic member on which the excitation coil and coil form of the apparatus are disposed, and elongated support rods having resilient grommets disposed thereon for mounting the nonmovable magnetic member in the apparatus housing, the improvement comprising,
  • lateral mounting members coupled to and extending outwardly from opposing sides of said non-movable magnetic member, said members including elongated apertures extending longitudinally therethrough for receiving said support rods and grommets and thereby resiliently mounting said nonmovable magnetic member in said housing, and said grommets each including an outwardly extending portion joined thereto resiliently supporting said coil form within said housing.
  • removable mounting means comprise mounting brackets having threaded apertures disposed therein for receiving mounting screws for an auxiliary switching apparatUS.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
US464198A 1973-04-26 1974-04-25 Resilient mounting arrangement for the non-movable magnetic member of an electromagnetic switching apparatus Expired - Lifetime US3902144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732321178 DE2321178C3 (de) 1973-04-26 Anordnung zur Halterung des nicht schaltenden Magnetteiles eines elektromagnetischen Schaltgerätes

Publications (1)

Publication Number Publication Date
US3902144A true US3902144A (en) 1975-08-26

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US464198A Expired - Lifetime US3902144A (en) 1973-04-26 1974-04-25 Resilient mounting arrangement for the non-movable magnetic member of an electromagnetic switching apparatus

Country Status (14)

Country Link
US (1) US3902144A (pt)
JP (1) JPS5518010B2 (pt)
AR (1) AR198351A1 (pt)
AT (1) AT330281B (pt)
BR (1) BR7403322D0 (pt)
CA (1) CA1006208A (pt)
CH (1) CH570696A5 (pt)
ES (1) ES425666A1 (pt)
FR (1) FR2227622B3 (pt)
GB (1) GB1416652A (pt)
IN (1) IN142097B (pt)
IT (1) IT1010052B (pt)
SE (1) SE401422B (pt)
ZA (1) ZA742155B (pt)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056799A (en) * 1974-12-05 1977-11-01 Siemens Aktiengesellschaft Housing for securing a damping compression spring in an electromagnetic switching apparatus
US4854282A (en) * 1986-10-29 1989-08-08 Robert Bosch Gmbh Device for securing control magnets on injection pumps for diesel fuel
US4970463A (en) * 1989-03-13 1990-11-13 Durakool Incorporated Temperature stable proximity sensor with sensing of flux emanating from the lateral surface of a magnet
US5038124A (en) * 1988-09-05 1991-08-06 Siemens Aktiengesellschaft Electromagnetic switchgear
US5818222A (en) * 1995-06-07 1998-10-06 The Cherry Corporation Method for adjusting ferrous article proximity detector
EP1615073A1 (en) 2004-07-06 2006-01-11 Fuji Photo Film Co., Ltd. Photosensitive composition and image recording method using the same
EP1662318A1 (en) 1999-03-09 2006-05-31 Fuji Photo Film Co., Ltd. 1,3-dihydro-1-oxo-2H-indene derivative
EP1701213A2 (en) 2005-03-08 2006-09-13 Fuji Photo Film Co., Ltd. Photosensitive composition
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Publication number Priority date Publication date Assignee Title
JPH0435192Y2 (pt) * 1988-12-12 1992-08-20

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US3501723A (en) * 1968-09-12 1970-03-17 Square D Co Coil and stationary magnet mounting for an electromagnetically operated device
US3740510A (en) * 1969-08-27 1973-06-19 Westinghouse Electric Corp Contactor with improved contact means
US3753177A (en) * 1972-03-31 1973-08-14 Westinghouse Electric Corp Electric control device
US3781727A (en) * 1970-06-03 1973-12-25 Siemens Ag Electromagnetic switching device

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JPS432161Y1 (pt) * 1964-06-22 1968-01-30
JPS4411242Y1 (pt) * 1968-02-02 1969-05-09

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501723A (en) * 1968-09-12 1970-03-17 Square D Co Coil and stationary magnet mounting for an electromagnetically operated device
US3740510A (en) * 1969-08-27 1973-06-19 Westinghouse Electric Corp Contactor with improved contact means
US3781727A (en) * 1970-06-03 1973-12-25 Siemens Ag Electromagnetic switching device
US3753177A (en) * 1972-03-31 1973-08-14 Westinghouse Electric Corp Electric control device

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056799A (en) * 1974-12-05 1977-11-01 Siemens Aktiengesellschaft Housing for securing a damping compression spring in an electromagnetic switching apparatus
US4854282A (en) * 1986-10-29 1989-08-08 Robert Bosch Gmbh Device for securing control magnets on injection pumps for diesel fuel
US5038124A (en) * 1988-09-05 1991-08-06 Siemens Aktiengesellschaft Electromagnetic switchgear
US4970463A (en) * 1989-03-13 1990-11-13 Durakool Incorporated Temperature stable proximity sensor with sensing of flux emanating from the lateral surface of a magnet
US5818222A (en) * 1995-06-07 1998-10-06 The Cherry Corporation Method for adjusting ferrous article proximity detector
EP1662318A1 (en) 1999-03-09 2006-05-31 Fuji Photo Film Co., Ltd. 1,3-dihydro-1-oxo-2H-indene derivative
EP1615073A1 (en) 2004-07-06 2006-01-11 Fuji Photo Film Co., Ltd. Photosensitive composition and image recording method using the same
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EP1955858A1 (en) 2007-02-06 2008-08-13 FUJIFILM Corporation Undercoat solution, ink-jet recording method and ink-jet recording device
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Also Published As

Publication number Publication date
AR198351A1 (es) 1974-06-14
ES425666A1 (es) 1976-07-01
FR2227622A1 (pt) 1974-11-22
IN142097B (pt) 1977-05-28
ATA339474A (de) 1975-09-15
SE401422B (sv) 1978-05-02
AU6749274A (en) 1975-10-09
BR7403322D0 (pt) 1974-11-19
JPS5013887A (pt) 1975-02-13
AT330281B (de) 1976-06-25
ZA742155B (en) 1975-03-26
IT1010052B (it) 1977-01-10
FR2227622B3 (pt) 1977-03-04
CH570696A5 (pt) 1975-12-15
DE2321178A1 (de) 1974-11-21
CA1006208A (en) 1977-03-01
JPS5518010B2 (pt) 1980-05-15
GB1416652A (en) 1975-12-03
DE2321178B2 (de) 1975-12-04

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