EP4186084A1 - Lichtbogenlöschkammer für eine elektrische schutzvorrichtung und elektrische schutzvorrichtung mit mindestens einer solchen löschkammer - Google Patents

Lichtbogenlöschkammer für eine elektrische schutzvorrichtung und elektrische schutzvorrichtung mit mindestens einer solchen löschkammer

Info

Publication number
EP4186084A1
EP4186084A1 EP21746473.4A EP21746473A EP4186084A1 EP 4186084 A1 EP4186084 A1 EP 4186084A1 EP 21746473 A EP21746473 A EP 21746473A EP 4186084 A1 EP4186084 A1 EP 4186084A1
Authority
EP
European Patent Office
Prior art keywords
chamber
electric arc
separation
electrical contacts
electrical
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.)
Pending
Application number
EP21746473.4A
Other languages
English (en)
French (fr)
Inventor
Bertrand Blaise
Stéphane Eloy
Luc Fassel
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.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
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 Hager Electro SAS filed Critical Hager Electro SAS
Publication of EP4186084A1 publication Critical patent/EP4186084A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/345—Mounting of arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H2009/365—Metal parts using U-shaped plates

Definitions

  • These electrical protection devices include connectors for connection to the electrical circuit, a protection mechanism, generally of the bimetal type and/or thermal relay and/or electronic circuit, making it possible to detect a fault, at least one pair of contacts electric able to be separated to allow the interruption of the electric current, a triggering mechanism able to separate said contacts and a protection mechanism making it possible to detect a fault and, following this detection, to control the separation of the contacts.
  • a protection mechanism generally of the bimetal type and/or thermal relay and/or electronic circuit, making it possible to detect a fault, at least one pair of contacts electric able to be separated to allow the interruption of the electric current, a triggering mechanism able to separate said contacts and a protection mechanism making it possible to detect a fault and, following this detection, to control the separation of the contacts.
  • These electrical protective devices also generally include a handle used to cut or reset the electrical protective device manually and to indicate its status.
  • the document EP3236482A1 relates to such an electrical protective device of the circuit breaker type comprising an interrupting chamber for extinguishing an electric arc formed during the separation of separable electrical contacts connected to input and output terminals of a electric current and which also makes it possible to remedy this drawback.
  • the electric interrupting chamber has increased durability and better resistance to wear when the circuit breaker is used for low voltages and high electric currents.
  • the interrupting chamber comprises a stack of separation plates spaced from each other and side walls (flanges) arranged on either side stacking. The partition plates are fixed to the side walls by being joined to the latter by their lateral sides.
  • this is generally integrated into an assembly in the form of a cover fixed by metal screws on the rear sides of the side walls of the interrupting chamber. These metal screws have the disadvantage of reducing dielectric strength.
  • the figures show an electric arc interrupter chamber for an electrical protective device, according to the present invention, said arc interrupter being capable of extinguishing an electric arc formed during the separation/opening of electrical contacts and has a part front A intended to be turned towards said electrical contacts and a rear part A' (opposite to said front part A).
  • the breaking chamber includes: [0023] - a juxtaposition of metal separation plates 1, preferably of planar shape, spaced from each other and extending along a juxtaposition axis X, and

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP21746473.4A 2020-07-24 2021-07-20 Lichtbogenlöschkammer für eine elektrische schutzvorrichtung und elektrische schutzvorrichtung mit mindestens einer solchen löschkammer Pending EP4186084A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007800A FR3112890B1 (fr) 2020-07-24 2020-07-24 Chambre de coupure d’arc électrique pour appareil électrique de protection et appareil électrique de protection comprenant au moins une telle chambre de coupure
PCT/EP2021/070207 WO2022018053A1 (fr) 2020-07-24 2021-07-20 Chambre de coupure d'arc electrique pour appareil electrique de protection et appareil electrique de protection comprenant au moins une telle chambre de coupure

Publications (1)

Publication Number Publication Date
EP4186084A1 true EP4186084A1 (de) 2023-05-31

Family

ID=73013648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21746473.4A Pending EP4186084A1 (de) 2020-07-24 2021-07-20 Lichtbogenlöschkammer für eine elektrische schutzvorrichtung und elektrische schutzvorrichtung mit mindestens einer solchen löschkammer

Country Status (5)

Country Link
EP (1) EP4186084A1 (de)
JP (1) JP2023544077A (de)
CN (1) CN116195018A (de)
FR (1) FR3112890B1 (de)
WO (1) WO2022018053A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612426A (en) * 1985-08-23 1986-09-16 Westinghouse Electric Corp. Arc chute assembly for circuit breaker
US7034242B1 (en) * 2004-11-09 2006-04-25 Eaton Corporation Arc chute and circuit interrupter employing the same
US9396890B2 (en) * 2014-05-28 2016-07-19 Eaton Corporation Electrical switching apparatus, and arc chute assembly and barrier member therefor
FR3050566B1 (fr) 2016-04-21 2019-08-30 Schneider Electric Industries Sas Disjoncteur a coupure dans l'air presentant une chambre de coupure d'arc electrique amelioree

Also Published As

Publication number Publication date
WO2022018053A1 (fr) 2022-01-27
FR3112890B1 (fr) 2023-11-03
CN116195018A (zh) 2023-05-30
FR3112890A1 (fr) 2022-01-28
JP2023544077A (ja) 2023-10-20

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