EP0090176B1 - Überstromschutzschalter - Google Patents

Überstromschutzschalter Download PDF

Info

Publication number
EP0090176B1
EP0090176B1 EP83101806A EP83101806A EP0090176B1 EP 0090176 B1 EP0090176 B1 EP 0090176B1 EP 83101806 A EP83101806 A EP 83101806A EP 83101806 A EP83101806 A EP 83101806A EP 0090176 B1 EP0090176 B1 EP 0090176B1
Authority
EP
European Patent Office
Prior art keywords
release
lever
leg
breaker according
overcurrent circuit
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
Application number
EP83101806A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0090176A3 (en
EP0090176A2 (de
Inventor
Fritz Krasser
Josef Kinner
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP0090176A2 publication Critical patent/EP0090176A2/de
Publication of EP0090176A3 publication Critical patent/EP0090176A3/de
Application granted granted Critical
Publication of EP0090176B1 publication Critical patent/EP0090176B1/de
Expired legal-status Critical Current

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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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting 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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H2071/7481—Means for adjusting the conditions under which the device will function to provide protection with indexing means for magnetic or thermal tripping adjustment knob
    • 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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2472—Electromagnetic mechanisms with rotatable armatures

Definitions

  • the invention relates to an overcurrent protection switch with the features of the preamble of claim 1.
  • Such a switch is the subject of GB-PS-1 008 876.
  • the invention has for its object to improve the switch-off behavior of such a switch by impact anchor action on the contacts. This object is achieved by the characterizing features of claim 1.
  • the contacts arranged on the tappet are opened faster, since the tappet is not only accelerated when released by the latching lever by the force of the spring acting on it acts, but experiences additional acceleration due to the swiveling end.
  • the swiveling end strikes the end of the plunger groove facing the latching lever, so that a quicker opening of the switching contacts is achieved. This improves the erosion behavior of the switch contacts and the u.a. dependent switching capacity.
  • the switching lock arrangement which consists essentially of only two parts, is relatively simple, which ultimately increases the switching reliability of the device.
  • the essential moving parts of the switch lock which are exposed to high acceleration forces in the event of tripping, are designed with a relatively small mass, so that the shutdown can take place even faster and thus more safely.
  • an improved impact anchor effect is achieved, since the impact anchor, which is longitudinally displaceable in the coil body of the magnetic release, has a certain lead time until it hits the central region of the release lever and strikes it upward, so that it in turn describes the plunger in the manner already described can act on the contacts provided on it.
  • the detachable mounting of the yoke on the coil body of the magnetic release according to claim 7 makes it possible to operate the magnetic release with and without a yoke as required. A considerable influence on the magnetic flux in the coil can thus be achieved in a targeted manner, so that a coarse adjustment of the tripping characteristics of the magnetic release is possible. These tripping characteristics are fine-tuned by a spring force according to claim 8, which is achieved, for example, by a spring.
  • the spring adjustment can be adjusted very finely by means of the adjustment device known essentially from DE-OS-2 505 449.
  • Claim 12 teaches a particularly space-saving arrangement of the bimetal and an action of the same via a compensation bimetal known per se on the release lever.
  • overcurrent protection switches are often put together with other switches next to them to form multi-pole devices. There is a requirement that when only one pole or one phase is triggered, the other phases are also triggered. So far, this has generally been achieved by a so-called external mechanical coupling of the actuating elements.
  • Claim 13 now teaches a - from US-PS-2 913 524 essentially known - more immediate and faster coupling (internal coupling) of the triggering movements of the adjacent switch locks by a coupling element lying between the devices, which is inaccessible to the layperson and cannot be influenced by it .
  • release clutches are designed in a particularly functional and simple manner according to claim 14 and can be used between the individual devices built next to one another as required.
  • claim 16 teaches a type of contact arrangement in the devices which is known per se, is simple to produce and is particularly electrically reliable.
  • the key switch (Fig. 1-4)
  • the housing of the overcurrent protection switch consists of two housing halves made of plastic (here made of thermoplastic, resistant to leakage current and flame-retardant), of which the lower housing part 1 is shown in the figures.
  • the device is actuated by the rocker arm 2, which is mounted with the shaft 3 formed on the rocker arm in the upper and lower parts of the housing.
  • a guide pin 4 is attached, which extends through a link guide 5 of the latch lever 6.
  • the latch lever 6 is movably mounted in the housing parts by means of an axis 7.
  • the side with the axis 7 presses the plunger 8 downward in the switched-on position (FIG. 1).
  • the other end of the latch lever 6 is supported on the release lever 9, which is pivotably mounted on the axis 75 fixed to the housing.
  • the tappet 8 In the switched-on position shown in FIG. 1, the tappet 8 is pressed down by the rocker arm 2 and its guide pin 4 via the link guide 5 of the latch lever 6, due to the support on the release lever 9.
  • the compression spring 10 on the plunger 8 counteracts the latching lever 6 and thus generates a clockwise rotation on the rocker arm 2 via its guide pin 4 (FIG. 1).
  • the torsion leg spring 12 exerts a left-turning torque on the rocker arm 2, but is inferior in strength in the switched-on position.
  • the intermediate position shown in FIG. 2 is practically based on the same considerations as in FIG. 1. Due to the link shape 5, the plunger 8 can move further upwards. This has an influence on the position of the contact bridges, which will be discussed later.
  • the torsion leg spring also has smaller forces here, so that the rocker arm 2 remains in this intermediate position.
  • the compression spring 10 can push the latching lever 6 all the way up.
  • the torsion leg spring 12 now dominates in terms of force, so that the latching lever 6 comes to rest on the side of the release lever 9 via its support surface 13.
  • the trigger elements (Fig. 1-4)
  • the overcurrent protection switch has both a bimetal and a solenoid release. Everyone is fully effective on their own, i.e. that the overcurrent protection switch can also be manufactured with only one release.
  • the bimetal strip 16 bends to the left and presses against the compensation bimetal strip 19. This is attached to the release lever 9.
  • the release lever Due to the bimetal strip pressure, the release lever is moved clockwise until the release lever is released.
  • the leg spring 20 counteracts the force of the bimetallic strip and brings the release lever into the rest position according to FIGS. 1-3.
  • the adjusting part 30 is inserted through the eye and the torsion spring until the resilient hooks 35 engage in the lower housing part 1.
  • the leg 32 of the spring 31 is supported in the armature 23, the other leg 33 lies in the slot 38, which is formed by the resilient hook. Since the spring 31 is also a compression spring, the spring 31 is supported between the eye 37 and the teeth 34. As long as the upper part 29 is not in place, the resilient hooks 35 hold the adjusting part 30 in place.
  • one tooth 34 is supported on the nose 36 and thus forms a support point for the torsion leg compression spring 31.
  • the other support point is the armature 23.
  • the torsion spring 31 is tensioned and its torque increases.
  • the adjusting part 30 is pressed against the lower housing part until the teeth 34 are out of reach of the nose 36 and the adjustment is thus possible.
  • the main circuit breaker is a double contact break.
  • connection 42 forms the first fixed contact.
  • the contact point itself can consist of copper with surface silvering or contact material is plated at the contact point.
  • the contact bridge 43 bears against the connection 42.
  • the contact bridge is supported on the plunger 8 via the compression spring 44 in order to generate the necessary contact pressure.
  • connection 45 The second fixed contact is formed by the connection 45.
  • the circuit break point is thus between the terminals 42 and 45.
  • the winding end of the coil 25 is also conductively connected, the other end of which is connected to the heating winding 17 at the clamping point 46.
  • the second end of the heating coil is welded to the bimetal.
  • the current path for the trigger elements is thus between the connection 45 and the connection 15.
  • the auxiliary circuit breaker has a fixed contact at connection 47.
  • the contact spring 48 which is fastened to connection 49, is on the fixed contact.
  • the auxiliary circuit breaker is thus between the terminals 47 and 49.
  • the contact is actuated via organ 76 of the plunger 8.
  • the auxiliary circuit closer has its fixed contact at connection 50.
  • the contact point which is formed by contact spring 51, is open.
  • the contact spring 51 is attached to the terminal 52.
  • the auxiliary circuit closer is located between terminals 50 and 52. The contact is also actuated by the plunger 8 via its organ 77.
  • the switch positions correspond to those of the switch-off position.
  • the auxiliary circuits can also be assigned differently, such as. B. two break contacts or two make contacts, whereby other switching positions can also be varied in the intermediate position.
  • the coupling not only takes place mechanically via the actuating members, but also the trigger levers 9 are coupled.
  • Additional cutouts 60 are formed in the housings for the release clutch 54.
  • the pins 62 of the release clutch 54 are mounted, which is thus rotatably located between the two devices.
  • the spring 55 rotates the release clutch clockwise and brings it with the tab 63 to the stop in the housing opening 64.
  • the pins 65 also protrude through a housing opening 66 into the devices.
  • the latching lever 6 can, as already described, pivot about the guide pin 4 in a clockwise direction.
  • the pin 67 comes into contact with the tab 63 of the release clutch 54.
  • the clutch is thereby rotated downwards or counterclockwise (see rotary arrow).
  • the pins 65 press against the inner surface 68 and thus rotate the release lever 9 of the device 57 until this device also trips.
  • the same triggering process takes place when the device 57 responds first.
  • an appealing device also triggers the neighboring device (devices) via its release lever when the device is switched off via the release coupling. If coupled devices are operated manually, they are only triggered by coupling the rocker arms 2 via the connecting piece 53.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP83101806A 1982-03-26 1983-02-24 Überstromschutzschalter Expired EP0090176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3211246 1982-03-26
DE3211246A DE3211246C1 (de) 1982-03-26 1982-03-26 UEberstromschutzschalter

Publications (3)

Publication Number Publication Date
EP0090176A2 EP0090176A2 (de) 1983-10-05
EP0090176A3 EP0090176A3 (en) 1987-01-28
EP0090176B1 true EP0090176B1 (de) 1988-05-18

Family

ID=6159429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101806A Expired EP0090176B1 (de) 1982-03-26 1983-02-24 Überstromschutzschalter

Country Status (4)

Country Link
US (1) US4516098A (enrdf_load_stackoverflow)
EP (1) EP0090176B1 (enrdf_load_stackoverflow)
JP (1) JPS58176843A (enrdf_load_stackoverflow)
DE (2) DE3211246C1 (enrdf_load_stackoverflow)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140209B (en) * 1983-04-20 1988-03-30 Airpax Corp Circuit breaker
JPH0347186Y2 (enrdf_load_stackoverflow) * 1985-12-13 1991-10-07
JP2513104Y2 (ja) * 1987-03-05 1996-10-02 株式会社東芝 回路しや断器
FR2624649B1 (fr) * 1987-12-10 1990-04-06 Merlin Gerin Disjoncteur multipolaire de calibre eleve constitue par deux boitiers accoles
IT218929Z2 (it) * 1989-10-31 1992-11-10 Abb Elettrocondutture Spa Interruttore automatico miniaturizzato a struttura modulare per impianti elettrici civili industriali e simili
US5130684A (en) * 1990-03-27 1992-07-14 Square D Company Circuit breaker with self-aligning thermal trip
US5223813A (en) * 1991-11-18 1993-06-29 Potter & Brumfield, Inc. Circuit breaker rocker actuator switch
DE4233918B4 (de) * 1992-10-08 2004-02-26 Schulte-Elektrotechnik Gmbh & Co Kg Elektrischer Schalter mit Stromüberwachung
US6087914A (en) * 1996-12-19 2000-07-11 Siemens Energy & Automation, Inc. Circuit breaker combination thermal and magnetic trip actuator
US5844188A (en) * 1996-12-19 1998-12-01 Siemens Energy & Automation, Inc. Circuit breaker with improved trip mechanism
US5866996A (en) * 1996-12-19 1999-02-02 Siemens Energy & Automation, Inc. Contact arm with internal in-line spring
US5894260A (en) * 1996-12-19 1999-04-13 Siemens Energy & Automation, Inc. Thermal sensing bi-metal trip actuator for a circuit breaker
RU2130172C1 (ru) * 1997-09-22 1999-05-10 Акционерное общество "ОРЛЭКС" Терморегулятор аварийного устройства для измерения и регулирования температуры с принудительным включением
US5872495A (en) * 1997-12-10 1999-02-16 Siemens Energy & Automation, Inc. Variable thermal and magnetic structure for a circuitbreaker trip unit
KR100821956B1 (ko) 2003-07-18 2008-04-15 국방과학연구소 위치구분장치를 구비한 항공기용 플랩 조종 핸들 조립체
DE102006027140A1 (de) * 2006-06-12 2007-12-13 Ellenberger & Poensgen Gmbh Schutzschalter
JP5570402B2 (ja) * 2010-12-06 2014-08-13 三菱電機株式会社 多極回路遮断器
CN102915876B (zh) * 2011-08-03 2015-03-04 施耐德电器工业公司 双金属热元件及其制作方法
WO2013075726A1 (de) 2011-11-22 2013-05-30 Ellenberger & Poensgen Gmbh Elektrisches schaltgerät
DE202011110187U1 (de) 2011-11-22 2013-01-18 Ellenberger & Poensgen Gmbh Elektrisches Schaltgerät
US9230768B2 (en) * 2012-02-28 2016-01-05 Siemens Aktiengesellschaft Circuit breaker thermal-magnetic trip units and methods
CN102610456B (zh) * 2012-03-13 2015-11-25 华为技术有限公司 热磁式断路器及配电设备
DE102016105341B4 (de) * 2016-03-22 2022-05-25 Eaton Intelligent Power Limited Schutzschaltgerät
DE102023135465A1 (de) 2023-12-18 2025-06-18 Phoenix Contact Gmbh & Co. Kg Auslösemechanik für Schutzschalter
LU505814B1 (de) 2023-12-18 2025-06-19 Phoenix Contact Gmbh & Co Auslösemechanik für Schutzschalter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE450082A (enrdf_load_stackoverflow) * 1940-08-15
DE744559C (de) * 1940-08-15 1944-01-20 Wilhelm Leyhausen Kleinselbstschalter
FR962941A (enrdf_load_stackoverflow) * 1947-12-09 1950-06-23
US2797276A (en) * 1952-02-06 1957-06-25 Labinal Ets Automatic circuit breakers
US2913542A (en) * 1957-10-23 1959-11-17 Ite Circuit Breaker Ltd Two pole circuit breaker
GB1008876A (en) * 1962-04-10 1965-11-03 Midland Electric Mfg Co Ltd Electric circuit breaker
FR1364958A (fr) * 1962-08-14 1964-06-26 Teco Disjoncteur à haut pouvoir de coupure et à encombrement réduit
US3365682A (en) * 1965-08-31 1968-01-23 Fujita Teizo Hand resettable trip-free electric circuit breaker
DE1538466B2 (de) * 1966-11-10 1971-06-03 Ellenberger & Poensgen Gmbh, 8503 Altdorf Ein oder mehrpoliger durckknopfbetaetigter ueberstrom schalter
AT333367B (de) * 1974-02-15 1976-11-25 Schrack Elektrizitaets Ag E Vorrichtung zur herbeifuhrung einer einstellbaren federkraft
CH614069A5 (enrdf_load_stackoverflow) * 1977-03-31 1979-10-31 Weber Ag Fab Elektro
DE7714923U1 (de) * 1977-05-11 1977-09-01 Ellenberger & Poensgen Gmbh, 8503 Altdorf Überstromschutzschalter mit Ein- und Ausschaltwippe

Also Published As

Publication number Publication date
US4516098A (en) 1985-05-07
DE3376708D1 (en) 1988-06-23
JPS58176843A (ja) 1983-10-17
EP0090176A3 (en) 1987-01-28
JPH0143975B2 (enrdf_load_stackoverflow) 1989-09-25
EP0090176A2 (de) 1983-10-05
DE3211246C1 (de) 1983-07-21

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