EP0173048B1 - Elektromagnetanordnung mit Überhitzungsschutz - Google Patents

Elektromagnetanordnung mit Überhitzungsschutz Download PDF

Info

Publication number
EP0173048B1
EP0173048B1 EP85108798A EP85108798A EP0173048B1 EP 0173048 B1 EP0173048 B1 EP 0173048B1 EP 85108798 A EP85108798 A EP 85108798A EP 85108798 A EP85108798 A EP 85108798A EP 0173048 B1 EP0173048 B1 EP 0173048B1
Authority
EP
European Patent Office
Prior art keywords
coil
switching element
protection against
electromagnet
against overheating
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
EP85108798A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0173048A1 (de
Inventor
Matthias Dipl.-Ing. Aschberger
Karlheinz Dipl.-Ing. Färber
Anton Dipl.-Ing. Deininger
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Coca Cola Co
Original Assignee
Coca Cola 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6243660&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0173048(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Coca Cola Co filed Critical Coca Cola Co
Priority to AT85108798T priority Critical patent/ATE58448T1/de
Publication of EP0173048A1 publication Critical patent/EP0173048A1/de
Application granted granted Critical
Publication of EP0173048B1 publication Critical patent/EP0173048B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/406—Temperature sensor or protection

Definitions

  • the present invention relates to an electromagnet arrangement with an electromagnet coil, in which the wire turns of the excitation coil are carried by a coil carrier body and are insulated from a magnetic flux body made of ferromagnetic conductive material, using a fuse switching element switched into the exciter circuit as overheating protection, the fuse Switching element for the overheating protection is arranged in the electromagnetic excitation coil and the coil carrier body separating the magnetic flux body and is in thermal contact with the electromagnetic coil.
  • Overheating protection measures belong to the general state of the art. Such protective measures against overheating are also used for the field windings of electric motors and electromagnets. Either temperature protection switches or temperature protection fuses can be used. Temperature protection switches only interrupt the power supply when the temperature is above a set limit, while temperature protection fuses cause permanent interruption of the excitation current path due to overheating.
  • the use of such protective measures is particularly important if they are only designed for short-term exposure and there is a risk of long-term exposure. With long-term loads in this connection, overheating of the excitation coil would lead to the destruction of the wire insulation and, as a result, to short circuits. For this reason, the overheating protection measures, such as thermal protection switches or thermal protection devices, are integrated in the excitation coil. The response value for the fuse element is selected such that the critical temperature for destroying the excitation coil is certainly not reached.
  • the electromagnetic coil is loaded in such a way that the critical temperature for the temperature protection element and thus the critical temperature for the electromagnet arrangement are not reached, but high temperatures below these limit values are generated relatively permanently, the electromagnetic coil also surrounds it, in particular that made of ferromagnetically conductive Material existing magnetic flux body heated to high temperatures. In particular, if this is held in a plastic housing, this can lead to undesirable side effects, for example scorching. To counteract this, it may be necessary to take overheating protection measures in this area as well.
  • An electromagnet arrangement with fuse protection which fully meets these requirements, is characterized according to the invention in that the fuse switching element for the overheating protection is arranged in an end flange of the coil carrier body and, in addition to the electromagnetic coil, also in thermal contact with the adjacent flat-profile leg of the magnetic flux body stands.
  • the fuse switching element is thermally coupled both to the excitation coil and to the magnetic flux body of the electromagnet arrangement.
  • the temperature limit value of this fuse switching element will be between the limit values for the critical temperature of the excitation coil and the critical temperature for the environment, this value being in particular close to the critical temperature for the environment.
  • a temperature gradient occurs between the temperature of the excitation coil and the temperature of the magnetic flux body. Since both functional elements act on the fuse switching element, the different faults that can lead to overheating can be taken into account.
  • the response value of the fuse switching element is established as a mean value when the temperature in the excitation coil rises to the range of a critical value. However, if the magnetic flux body is heated to a temperature which, in relation to the environment, e.g. on a plastic housing, should not be exceeded, so the additional heating of the excitation coil can respond to the fuse switching element.
  • the arrangement of the fuse switching element in the coil carrier body is also advantageous in view of the fact that the excitation coil need not be spatially loaded by this fuse switching element. It is to be assigned to the excitation coil after its completion. This also simplifies the replacement of this fuse switching element.
  • the measures taken according to the invention provide for the fuse switching element for the overheating protection to be arranged in an end flange of the coil carrier body. This should therefore be trained somewhat more.
  • the electromagnet arrangement according to the invention is characterized in that a temperature fuse which can be destroyed when the overheating protection limit value is exceeded is arranged as the fuse switching element for the overheating protection.
  • a temperature fuse which can be destroyed when the overheating protection limit value is exceeded is arranged as the fuse switching element for the overheating protection.
  • An electromagnetic coil 2 applied to a coil former 1 is arranged on a cylindrical core 3 made of ferromagnetic material.
  • a cylindrical core 3 made of ferromagnetic material.
  • two flat-pole legs 4 are arranged, which have cylindrical openings in which the cylindrical core 3 is wedged.
  • the free ends of the flat-profile legs 4 protrude into the area of a metering valve 5 for beverage concentrates, such as those used in devices for mixing soft drinks.
  • a part of the control slide 6 of this metering device 5 consists of ferromagnetic conductive material and can thus be influenced as a plunger 7 between the free ends of the flat-profile legs 4.
  • the flat-profile legs 4 cover the cross section of this electromagnetic coil 12, so that the magnetic fields emerging from the end face are advantageously taken over.
  • a temperature protection fuse 9 is attached such that it is in thermal contact with the adjacent flat-profile leg 4 of the magnetic flux body and with the electromagnetic coil 12. The excitation current for the electromagnetic coil 12 is conducted via this temperature protection fuse 9.
  • the temperature protection fuse 9 can be designed as a fuse or can be implemented by a semiconductor, which is destroyed when the temperature value which is not to be exceeded is reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • General Induction Heating (AREA)
  • Valve Device For Special Equipments (AREA)
  • Braking Arrangements (AREA)
  • Fuses (AREA)
  • Processing Of Solid Wastes (AREA)
  • Breakers (AREA)
  • Regulation Of General Use Transformers (AREA)
EP85108798A 1984-08-22 1985-07-13 Elektromagnetanordnung mit Überhitzungsschutz Expired - Lifetime EP0173048B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108798T ATE58448T1 (de) 1984-08-22 1985-07-13 Elektromagnetanordnung mit ueberhitzungsschutz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430927 DE3430927A1 (de) 1984-08-22 1984-08-22 Elektromagnetanordnung mit ueberhitzungsschutz
DE3430927 1984-08-22

Publications (2)

Publication Number Publication Date
EP0173048A1 EP0173048A1 (de) 1986-03-05
EP0173048B1 true EP0173048B1 (de) 1990-11-14

Family

ID=6243660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108798A Expired - Lifetime EP0173048B1 (de) 1984-08-22 1985-07-13 Elektromagnetanordnung mit Überhitzungsschutz

Country Status (10)

Country Link
US (1) US4771198A (es)
EP (1) EP0173048B1 (es)
JP (1) JPS61198605A (es)
KR (1) KR900002589B1 (es)
AT (1) ATE58448T1 (es)
AU (1) AU587394B2 (es)
CA (1) CA1251823A (es)
DE (2) DE3430927A1 (es)
ES (1) ES8704033A1 (es)
ZA (1) ZA855709B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683575A5 (fr) * 1990-10-11 1994-03-31 Honeywell Lucifer Sa Ensemble d'électroaimants pour électrovalves à commande directe.
JP2770938B2 (ja) * 1995-03-08 1998-07-02 サンデン株式会社 電磁装置
JP3627313B2 (ja) * 1995-03-29 2005-03-09 株式会社デンソー 電磁クラッチ
US6028381A (en) * 1996-02-09 2000-02-22 Hitachi, Ltd. Starter equipped with current interruption mechanism
JPH10110744A (ja) * 1996-10-07 1998-04-28 Sanden Corp 電磁クラッチ用電磁石
JP2001244111A (ja) 2000-02-29 2001-09-07 Sanden Corp コイルボビン
US6873071B2 (en) * 2003-06-03 2005-03-29 Pratt & Whitney Canada Corp. Method, apparatus and system for controlling an electric machine
DE102007036310A1 (de) * 2007-07-31 2009-02-05 Hydac Electronic Gmbh Sicherheitsvorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152290A (en) * 1962-06-06 1964-10-06 Gen Motors Corp Rotary electromagnet construction
DE1488992B2 (de) * 1966-04-25 1972-03-23 Robert Bosch Gmbh, 7000 Stuttgart Uebertemperatursucherung fuer eine elektrische wicklung
US3691425A (en) * 1971-04-15 1972-09-12 Certron Corp Transformer with a fuse
DE7115009U (de) * 1971-04-20 1971-07-15 Elektroteile Gmbh Elektromagnet mit thermoschalter
DE2536375B2 (de) * 1975-08-14 1979-03-29 Norbert Dipl.-Ing. 5275 Bergneustadt Weiner Anordnung für die thermische Sicherung von elektrischen Spulen
US4112405A (en) * 1976-08-16 1978-09-05 Mark Joseph Coil with protection against overheating
US4454554A (en) * 1980-07-28 1984-06-12 The General Industries Company Coil bobbin
DE3120041A1 (de) * 1981-05-20 1982-12-09 Rolf Dipl.-Ing. 7140 Ludwigsburg Gneiting Magnetspule fuer schuetze und magnetventile
DE8232850U1 (de) * 1982-11-23 1983-05-11 Herion-Werke Kg, 7012 Fellbach Elektromagnet

Also Published As

Publication number Publication date
US4771198A (en) 1988-09-13
ATE58448T1 (de) 1990-11-15
ES8704033A1 (es) 1987-03-01
ES546308A0 (es) 1987-03-01
DE3430927A1 (de) 1986-03-06
AU587394B2 (en) 1989-08-17
CA1251823A (en) 1989-03-28
AU4650885A (en) 1986-02-27
KR900002589B1 (ko) 1990-04-20
KR860002120A (ko) 1986-03-26
DE3580544D1 (de) 1990-12-20
EP0173048A1 (de) 1986-03-05
JPH0315325B2 (es) 1991-02-28
ZA855709B (en) 1986-03-26
JPS61198605A (ja) 1986-09-03
DE3430927C2 (es) 1991-08-14

Similar Documents

Publication Publication Date Title
DE3637275C1 (en) Overcurrent trip device for protection switching apparatuses
EP0173048B1 (de) Elektromagnetanordnung mit Überhitzungsschutz
EP0920044B1 (de) Schalter mit einem temperaturabhängigen Schaltwerk
DE1904244A1 (de) Explosionsschalter
DE842809C (de) Schaltpatrone
EP0727802A2 (de) Elektromagnetisches Schaltgerät, insbesondere Schütz
DE4110335C2 (de) Einrichtung zum Kurzschlußschutz
EP0114231A1 (de) Überstromschutz
EP0915491A2 (de) Schalter mit einem temperaturabhängigen Schaltwerk
DD240979A5 (de) Elektromagnetanordnung mit ueberhitzungsschutz
DE4130230A1 (de) Vakuumschalter-kontaktanordnung
DE469229C (de) Vorrichtung zum Schutze der Wicklungen von elektrischen stromverbrauchenden oder stromerzeugenden Maschinen und Apparaten gegen unzulaessige Erwaermung
DE2137285A1 (de) Selbsttaetige sicherheitsschaltung zur ueberwachung des leistungsschaltgliedes eines elektrischen stromverbrauchers
EP1083586A2 (de) Auslöser für elektrische Schutzschalter
DE3117369C2 (es)
DE938024C (de) Kleinthermoschalter, insbesondere fuer die thermische UEberwachung elektrischer Maschinen und Geraete
AT232153B (de) Elektrischer Durchlauferhitzer mit Sicherheitsvorrichtung
DE1563335C (de) Spule mit veränderlicher Induktivität als Strombegrenzungseinrichtung fur Ener gieubertragungsanlagen
DE3932292A1 (de) Schutzstromkreis fuer ein elektrisch beheiztes schmiegsames waermegeraet, wie bettwaermer oder kissen
AT397374B (de) Übertemperatur-grenzschutz für elektrische heizkörper
AT100128B (de) Schutzvorrichtung für elektrische Stromverbraucher gegen unzulässige Erwärmung.
DE2234056C3 (de) Anordnung zum Abschalten einer elektrischen Last bei unsymmetrischen Strömen in diese
WO2000074097A1 (de) Schalteinrichtung mit thermisch gesteuertem elektromagnetischem auslöser und auslöser
DE854968C (de) Elektrische Sicherungsvorrichtung
WO1999045622A1 (de) Anordnung sowie verfahren zur strombegrenzung mit einer supraleitenden transformatoranordnung in einem elektrischen schaltkreis

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: COCA-COLA COMPANY

Owner name: BOSCH-SIEMENS HAUSGERAETE GMBH

17P Request for examination filed

Effective date: 19860319

17Q First examination report despatched

Effective date: 19870514

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 58448

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3580544

Country of ref document: DE

Date of ref document: 19901220

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITTA It: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940610

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940613

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19940630

Year of fee payment: 10

EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19940919

Year of fee payment: 10

EAL Se: european patent in force in sweden

Ref document number: 85108798.1

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19950712

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 85108798.1

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19960731

BERE Be: lapsed

Owner name: COCA-COLA CY

Effective date: 19960731

Owner name: BOSCH-SIEMENS HAUSGERATE G.M.B.H.

Effective date: 19960731

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030630

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20030703

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030704

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030710

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040713

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050201

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040713

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050201

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO