WO2020079099A1 - Dispositif d'interruption du courant pour protéger un moteur électrique - Google Patents

Dispositif d'interruption du courant pour protéger un moteur électrique Download PDF

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Publication number
WO2020079099A1
WO2020079099A1 PCT/EP2019/078120 EP2019078120W WO2020079099A1 WO 2020079099 A1 WO2020079099 A1 WO 2020079099A1 EP 2019078120 W EP2019078120 W EP 2019078120W WO 2020079099 A1 WO2020079099 A1 WO 2020079099A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
conductive substance
interruption device
connection
current
Prior art date
Application number
PCT/EP2019/078120
Other languages
German (de)
English (en)
Inventor
Ralph Wystup
Markus Humm
Daniel ROSENBERGER
Original Assignee
Ebm-Papst Mulfingen Gmbh & Co. Kg
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 Ebm-Papst Mulfingen Gmbh & Co. Kg filed Critical Ebm-Papst Mulfingen Gmbh & Co. Kg
Priority to EP19790187.9A priority Critical patent/EP3794624A1/fr
Publication of WO2020079099A1 publication Critical patent/WO2020079099A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/36—Thermally-sensitive members actuated due to expansion or contraction of a fluid with or without vaporisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/02—Details
    • H01H29/04—Contacts; Containers for liquid contacts
    • H01H29/06—Liquid contacts characterised by the material thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/30—Switches having at least one liquid contact with level of surface of contact liquid displaced by expansion or evaporation thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load

Definitions

  • a current interruption device that can be integrated into the power supply of an electric motor, which is designed to interrupt the power supply when a defined temperature TG is reached, this being designed with a receptacle housing in which a volume that can be changed by increasing the temperature (infol the change in density) electrically conductive substance is included.
  • a first and a second connection are provided for the serial connection in the power supply and at least one of the connections is electrically contacted or disconnected with the conductive substance (due to a change in volume) depending on the temperature-dependent volume of the conductive substance and thereby a current flow from the first connection (To the second connection is either enabled or interrupted.
  • a configuration is preferred in which at least the temperature T G at which an interruption is to take place between the two connections is a temperature at which the electrically conductive substance undergoes its phase transition from the fixed into is in the liquid state.
  • the detection device is a filling level sensor, which is made or separated with a sensor element through an opening in the receiving space in the receiving housing, preferably at a location immediately adjacent to the connection between which a connection is made, so that each after the temperature-dependent volume of the conductive substance, the sensor element is more or less electrically contacted with the conductive substance or completely separated.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un dispositif d'interruption du courant (1), qui peut être intégré dans l'alimentation électrique (2) d'un moteur électrique (3) et qui est configuré pour interrompre l'alimentation électrique (2) lorsqu'une température définie TG est atteinte, comprenant un boîtier d'accueil (10) dans lequel est logée une substance électriquement conductrice (20) dont le volume peut varier sous l'effet d'une augmentation de la température. Une première et une deuxième borne (11a, 11b) destinées à un branchement en série dans l'alimentation électrique (2) sont présentes, et au moins l'une des bornes (11a, 11b) entre en contact électrique avec la substance conductrice (20) ou est séparée électriquement de celle-ci en fonction du volume dépendant de la température de la substance conductrice (20), et un flux de courant de la première borne (11a) à la deuxième borne (11b) est ainsi soit rendu possible, soit interrompu.
PCT/EP2019/078120 2018-10-19 2019-10-16 Dispositif d'interruption du courant pour protéger un moteur électrique WO2020079099A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19790187.9A EP3794624A1 (fr) 2018-10-19 2019-10-16 Dispositif d'interruption du courant pour protéger un moteur électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018126117.9A DE102018126117A1 (de) 2018-10-19 2018-10-19 Stromunterbrechungsvorrichtung zum Schutz eines Elektromotors
DE102018126117.9 2018-10-19

Publications (1)

Publication Number Publication Date
WO2020079099A1 true WO2020079099A1 (fr) 2020-04-23

Family

ID=68038992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/078120 WO2020079099A1 (fr) 2018-10-19 2019-10-16 Dispositif d'interruption du courant pour protéger un moteur électrique

Country Status (4)

Country Link
EP (1) EP3794624A1 (fr)
CN (1) CN209462005U (fr)
DE (1) DE102018126117A1 (fr)
WO (1) WO2020079099A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US475340A (en) * 1892-05-24 And leonard- ii
JPH07177790A (ja) * 1993-12-20 1995-07-14 Asmo Co Ltd モータ制御装置
DE10307933B3 (de) * 2003-02-25 2004-06-03 Ivoclar Vivadent Ag Kalibriervorrichtung
EP2535993A1 (fr) 2011-06-16 2012-12-19 ebm-papst Mulfingen GmbH & Co. KG Protection contre suréchauffement vite et redondant avec arrêt sécurisé pour un moteur a commutation électronique
CN102592883B (zh) * 2011-01-07 2014-06-11 中国科学院理化技术研究所 一种基于低熔点金属相变体积变化效应的温度开关

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2350997A1 (de) * 1973-10-11 1975-04-24 Wickmann Werke Ag Temperaturabhaengiges schaltgeraet
US4691197A (en) * 1985-06-24 1987-09-01 Eaton Corporation Blown fuse indicator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US475340A (en) * 1892-05-24 And leonard- ii
JPH07177790A (ja) * 1993-12-20 1995-07-14 Asmo Co Ltd モータ制御装置
DE10307933B3 (de) * 2003-02-25 2004-06-03 Ivoclar Vivadent Ag Kalibriervorrichtung
CN102592883B (zh) * 2011-01-07 2014-06-11 中国科学院理化技术研究所 一种基于低熔点金属相变体积变化效应的温度开关
EP2535993A1 (fr) 2011-06-16 2012-12-19 ebm-papst Mulfingen GmbH & Co. KG Protection contre suréchauffement vite et redondant avec arrêt sécurisé pour un moteur a commutation électronique

Also Published As

Publication number Publication date
EP3794624A1 (fr) 2021-03-24
DE102018126117A1 (de) 2020-04-23
CN209462005U (zh) 2019-10-01

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