EP3249674B1 - Declencheur et encliquetage - Google Patents

Declencheur et encliquetage Download PDF

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Publication number
EP3249674B1
EP3249674B1 EP17158222.4A EP17158222A EP3249674B1 EP 3249674 B1 EP3249674 B1 EP 3249674B1 EP 17158222 A EP17158222 A EP 17158222A EP 3249674 B1 EP3249674 B1 EP 3249674B1
Authority
EP
European Patent Office
Prior art keywords
latch
overload
area
hump
pawl
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.)
Active
Application number
EP17158222.4A
Other languages
German (de)
English (en)
Other versions
EP3249674A1 (fr
Inventor
Stephan Lehmann
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3249674A1 publication Critical patent/EP3249674A1/fr
Application granted granted Critical
Publication of EP3249674B1 publication Critical patent/EP3249674B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H73/48—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 having both electrothermal and electromagnetic automatic release
    • H01H73/50—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 having both electrothermal and electromagnetic automatic release reset by lever
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms

Definitions

  • the invention relates to an overload release.
  • a switching mechanism for circuit breakers is disclosed. This consists of a contact lever with a stamped part which is essentially flat transversely to the functional or pivoting plane, with a straight middle part extending in front of the stationary axis and a latching pin which is bent or offset backwards above the point of application of the contact spring parallel to the plane of the middle part.
  • a switching mechanism for a residual current circuit breaker is disclosed with a latching point with a release lever and a latch lever, which are clamped against each other by means of a spring when the switch is switched on.
  • the pawl lever and/or the release lever in the area of the latching point are designed with convex surfaces facing one another. This allows bearing tolerances to be avoided.
  • the invention is therefore based on the object of providing an overload release that can continue to trigger reliably when dirty.
  • the advantage here is that contamination can be absorbed by the depressions created next to the hump in the unlatching area. This prevents or reduces an increase in friction in the unlatching area. Dirt that settles on the hump can be transported away from the hump through the latching process. Because the pawl surface or the latching surface has a hump, the contact surface between the pawl and the energy storage is more precisely defined.
  • the hump of the latch surface or the latching surface is designed as a linear elevation on the latch surface or latching surface.
  • the linear hump is formed perpendicular to the direction of movement of the pawl or the energy accumulator.
  • the pawl and the energy storage device each describe a circular movement around a fixed center point.
  • the linear hump is formed parallel to the direction of movement of the pawl or the energy accumulator.
  • FIG. 1 an energy storage device 200 according to the invention is shown.
  • the energy storage 200 has a latching surface 201 on.
  • a hump 210 is attached to this latching surface 201.
  • the hump 210 means that dirt that is deposited on it during a triggering process can be transported into the recesses to the right and left of the hump 210. As a result, the contact surface of the hump 210 of the energy accumulator 200 is not contaminated. This does not lead to an increase in friction.
  • the overload release 500 comprises an energy accumulator 200 which interacts with a pawl 100, the pawl 100 being provided with a pawl surface 101 and the energy accumulator 200 having a latching surface 201. In the latched state, these two surfaces 101 act; 201 mechanically together. In the unlatched state in the event of an overload, the latch surface 101 is released from the latching surface 201 to enable the movement of the force accumulator 200.
  • the overload release 500 off Figure 3 comprises an energy storage device 200 and a pawl 100.
  • the pawl 100 interacts with the energy storage device 200 to release the energy stored in the energy storage device 200. According to the Figure 3 This means that to release the pawl 100 must be rotated counterclockwise around its fixed center 105 and the energy storage device 200 must be rotated clockwise around its fixed center 205.
  • the release slide 300 acts on the pawl 100, for example via a deflector 1100. This causes the pawl 100 to be rotated counterclockwise about its fixed center 105. The linear movement of the trigger slide 300 is converted into a circular movement of the pawl 100. The release slide 300 directly or indirectly actuates the pawl 100.
  • the Indian Figure 1 The hump 210 shown on the latching surface 201 of the energy accumulator 200 interacts with the latching surface 101 of the latch 100.
  • the advantage here is that the hump 210 offers a well-defined support or contact surface on which no dirt can be deposited due to the interaction with the pawl 100. If contamination is deposited on the hump 210 when triggered, this contamination is transported away from the hump 210 when latched, for example into the recess next to the hump 210 on the latching surface 201.
  • a hump 110 is arranged on the pawl surface 101.
  • This hump 110 also offers the same advantages as the hump 210 of the energy accumulator 200. Contamination can accumulate on the hump 110 when triggered, but when latched, this contamination is transported away from the hump 110, for example into the recess next to the hump 110.
  • the overload release 500 off Figure 3 with the bimetals 501; 502, the release slide 300, the pawl 100 and the energy storage 200 trigger as follows in the event of an overload:
  • the bimetal 501; 502 actuates the release slide 300;
  • the release slide 300 thereby actuates the pawl 100 and the pawl 100 thereby releases the movement of the energy accumulator 200.
  • the trigger slide 300 can be a linear one describe movement.
  • Pawl 100 and energy storage 200 each describe a circular movement around a fixed center 105; 205.
  • FIG 4 an energy storage device 200 according to the invention is shown.
  • the energy storage 200 has a latching surface 201.
  • the humps 210; 210a cause dirt that is deposited on it during a triggering process to enter the recesses to the right and left of the humps 210; 210a can be transported.
  • the contact surface is the hump 210; 210a of the energy storage device 200 is not contaminated. This does not lead to an increase in friction.
  • the linear humps 210; 210a are formed perpendicular to the direction of movement of the pawl 100 or the energy accumulator 200.
  • the latch contour either of the latch 100 or the energy storage 200, was redesigned to make the latch insensitive to contamination and manufacturing tolerances.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (4)

  1. Déclencheur de surcharge (500) avec un bilame (501 ; 502), un curseur de déclenchement (300), un cliquet (100) et un accumulateur d'énergie (200), dans lequel en cas de surcharge
    - le bilame (501 ; 502) actionne le curseur de déclenchement (300) ;
    - le curseur de déclenchement (300) actionne alors le cliquet (100) ; et
    - le cliquet (100) libère ensuite le mouvement de l'accumulateur d'énergie (200),
    dans lequel le cliquet (100) est muni d'une surface de cliquet (101) et l'accumulateur d'énergie (200) est muni d'une surface d'encliquetage (201), dans lequel, dans l'état encliqueté, les deux surfaces (101 ; 201) interagissent mécaniquement et, dans l'état décliqueté, lors d'une surcharge, la surface de cliquet (101) est détachée de la surface d'encliquetage (201) afin de libérer le mouvement de l'accumulateur d'énergie (200),
    caractérisé en ce que
    la surface de cliquet (101) ou la surface d'encliquetage (201) présente une bosse (110 ; 210), en ce que la bosse (110 ; 210) est conçue comme une surélévation linéaire sur la surface de cliquet (101) ou de la surface d'encliquetage (201), qui génère une surface d'appui définie et, à côté de la bosse, se trouve un renfoncement qui permet de capturer les salissures.
  2. Déclencheur de surcharge (500) selon la revendication 1, dans lequel la bosse linéaire (110 ; 210) est réalisée perpendiculairement au sens de déplacement du cliquet (100) ou de l'accumulateur d'énergie (200).
  3. Déclencheur de surcharge (500) selon l'une des revendications 1 ou 2, dans lequel le cliquet (100) et l'accumulateur d'énergie (200) peuvent effectuer chacun un mouvement circulaire, chacun autour d'un centre fixe (105 ; 205).
  4. Déclencheur de surcharge (500) selon la revendication 1, dans lequel la bosse linéaire (210 ; 210a) est réalisé parallèlement au sens du déplacement du cliquet (100) ou de l'accumulateur d'énergie (200).
EP17158222.4A 2016-05-24 2017-02-27 Declencheur et encliquetage Active EP3249674B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016208930.7A DE102016208930A1 (de) 2016-05-24 2016-05-24 Überlastauslöser

Publications (2)

Publication Number Publication Date
EP3249674A1 EP3249674A1 (fr) 2017-11-29
EP3249674B1 true EP3249674B1 (fr) 2023-09-13

Family

ID=58185441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17158222.4A Active EP3249674B1 (fr) 2016-05-24 2017-02-27 Declencheur et encliquetage

Country Status (4)

Country Link
US (1) US10347454B2 (fr)
EP (1) EP3249674B1 (fr)
CN (1) CN107424880B (fr)
DE (1) DE102016208930A1 (fr)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL155404B (nl) * 1950-07-15 Varta Ag Werkwijze voor het verbeteren van de houdbaarheid van een geformeerde elektrode voor een loodaccumulator, een hiermee verkregen elektrode en een loodaccumulator, voorzien van zulk een elektrode.
DE1858351U (de) * 1962-07-16 1962-09-13 Busch Jaeger Duerener Metall Sperrklinke in ausloeseeinrichtungen.
FR2258698B1 (fr) 1974-01-22 1976-10-08 Unelec
DE3008533A1 (de) * 1980-03-06 1981-09-17 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltwerk fuer elektrische installationsschaltgeraete
CA1245698A (fr) * 1983-06-02 1988-11-29 Gregory T. Divincenzo Disjoncteur concu pour une fabrication acceleree
DE3545490A1 (de) * 1985-12-20 1987-07-02 Siemens Ag Schaltschloss fuer elektrische schaltgeraete
DE3619242C2 (de) * 1986-06-07 1994-07-21 Kloeckner Moeller Gmbh Schaltmechanismus für einen Leitungsschutzschalter
US5059933A (en) * 1990-09-14 1991-10-22 General Electric Company Molded case circuit breaker operating cradle configuration
US6181226B1 (en) * 1999-11-05 2001-01-30 Siemens Energy & Automation, Inc. Bi-metal trip unit for a molded case circuit breaker
US6255925B1 (en) * 2000-02-18 2001-07-03 Siemens Energy & Automation, Inc. Thermal-magnetic trip unit with adjustable magnetic tripping
CN100464387C (zh) 2006-12-15 2009-02-25 大全集团有限公司 断路器跳闸脱扣器
EP1995754B1 (fr) * 2007-05-23 2013-09-04 Abb Ag Commutateur d'installation électrique
US8830026B2 (en) * 2010-12-30 2014-09-09 General Electric Company Shape memory alloy actuated circuit breaker
DE102012203294A1 (de) 2012-03-02 2013-09-05 Siemens Aktiengesellschaft Schaltschloss eines Leistungsschalters
EP2897152B1 (fr) * 2014-01-17 2017-03-29 Siemens Aktiengesellschaft Dispositif de déclenchement thermique, dispositif de commutation, disjoncteur magnétique thermique et procédé de protection d'un circuit électrique
EP2905800A1 (fr) * 2014-02-11 2015-08-12 Siemens Aktiengesellschaft Dispositif de déclenchement thermique, dispositif de commutation, disjoncteur magnétique thermique et procédé de protection d'un circuit électrique contre les dégâts
DE202016001905U1 (de) * 2016-03-23 2016-05-03 Siemens Aktiengesellschaft Klinke und Überlastauslöser

Also Published As

Publication number Publication date
CN107424880B (zh) 2020-03-20
DE102016208930A1 (de) 2017-11-30
CN107424880A (zh) 2017-12-01
EP3249674A1 (fr) 2017-11-29
US20170345599A1 (en) 2017-11-30
US10347454B2 (en) 2019-07-09

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