EP1089309A2 - Relais électronique de surcharge - Google Patents

Relais électronique de surcharge Download PDF

Info

Publication number
EP1089309A2
EP1089309A2 EP00121152A EP00121152A EP1089309A2 EP 1089309 A2 EP1089309 A2 EP 1089309A2 EP 00121152 A EP00121152 A EP 00121152A EP 00121152 A EP00121152 A EP 00121152A EP 1089309 A2 EP1089309 A2 EP 1089309A2
Authority
EP
European Patent Office
Prior art keywords
overload relay
relay according
circuit board
cover
primary
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.)
Granted
Application number
EP00121152A
Other languages
German (de)
English (en)
Other versions
EP1089309B1 (fr
EP1089309A3 (fr
Inventor
Georgi Dipl.-Ing. Cwetanski
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1089309A2 publication Critical patent/EP1089309A2/fr
Publication of EP1089309A3 publication Critical patent/EP1089309A3/fr
Application granted granted Critical
Publication of EP1089309B1 publication Critical patent/EP1089309B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • 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
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • H01H71/125—Automatic release mechanisms with or without manual release using a solid-state trip unit characterised by sensing elements, e.g. current transformers

Definitions

  • the invention relates to an electronic overload relay for an electrical Installation device according to the preamble of claim 1.
  • the usually known thermal overcurrent relays have one of the number of phases to be protected corresponding to the number of bimetallic metals over a Slider act on a switching mechanism so that in the event of an overcurrent Leads z. B. be switched off to an engine.
  • overload relays have recently been working on an electronic basis. You lead the Current to the motor through current sensors that detect the overcurrent; over a suitable evaluation circuit, switching contacts are controlled with which For example, a contactor is activated to switch off the phase conductors.
  • the object of the invention is an electronic overload relay of the aforementioned To create a type that is easy to manufacture and assemble.
  • one leg of the core passes through the primary winding and the Secondary winding-carrying bobbin, with a first on the bobbin Space compartment for the secondary winding between two walls and a second one Space formed between two further walls for the primary winding is what forms a converter.
  • connecting lugs are provided which have two parallel flags projecting in the same direction, one of which is used for mechanical fixation in a receiving pocket on the bobbin and the another is electrically conductively connected to the primary winding in the second room compartment.
  • the compartments can be arranged side by side and by only one Be separated from each other.
  • the walls are coil former flanges.
  • the coil formers are on one PCB attached.
  • the converter is arranged on one side of the circuit board; on the other side there is a cover that is used to guide the primary conductor is provided with slits.
  • the electromagnet system is from a cover, the openings at least for the connecting straps has, so that connecting lines to these outside the cover can be connected.
  • the cover carries fixed contact pieces with movable contact pieces on one the rocker switch located inside the cover interact in two stable positions is adjustable, in which they with different fixed contact pieces can be combined in accordance with the state in the overload relay.
  • control coils with a yoke on the circuit board attached with two yoke legs, the yoke legs in the same direction as project the connection lugs.
  • Permanent magnets can be attached to the rocker, which in the assembled state in Area of the yoke legs are so that over the yoke legs and the control coils the rocker and thus the movable contact pieces can be driven.
  • the circuit board with the converter and Control coils and possibly other electronic components on the one hand and the Cover with the rocker switch and the fixed and movable contact pieces on the other hand each form a preassembled unit that is easy to assemble can be nested.
  • There is an electrically conductive connection with Corresponding operation between the two units is not necessary because an inductive coupling is produced between the two.
  • Fig. 1 shows a side view of a first unit for an electronic Overcurrent relay.
  • Transducers 11 are attached to a printed circuit board 10, for example by means of a screw connection, not shown. From Fig. 2 it can be seen that the converter from a number of three corresponding to the number of phase conductors Transducer elements 12, 13, 14 is composed.
  • a coil body 50, 51 and 52 is provided, which is a rectangular one Coil tube 53, 54 and 55 has that at both ends with a radial flange 56 or 57, 58, 59, 60 and 61 is limited, whereby a first Space 62, 63 and 64 is formed which, as can be seen from FIGS. 1 and 2, respectively carries a secondary winding 65, 66 and 67.
  • the coil tube 53, 54 and 55 sits over the flange 57, 59, 61 as well 5 can be seen at the front in FIG. 5, with a Coil tube extension 68; the free end of the coil tube extension 68 is from a further flange 69, 70, 71 delimited, wherein between the flanges 57, 69, 59, 70, 61, 71 a second space 72, 73, 74 is formed, the primary winding 75, 76 and 77 records.
  • a rectangular core 78, 79, 80 which consists of several, is assigned to each partial converter Sheet metal fins is assembled and forms a rectangular ring in cross section, with its invisible leg through the coil tube 68/53, 54 and 55 passed through. So that the primary winding 75, 76 and 77 of one leg of the core, as well as the secondary windings 65, 66 and 67.
  • Pockets 81, 82 and 83 are also on the bobbins 50, 51 and 52 Shaped openings 84, 85 and 86, which are used to receive terminal lugs 87, 88 and 89 serve.
  • Each of the connecting lugs 87 to 89 has a cranked one Projection 90 and a flat projection 91, which one another in supervision Form a two-pronged fork.
  • the projection 91 or leg 91 of all three Connection lugs 87 to 89 are in the receiving pocket 84, 85 and 86 for Inserted bracket and on the corresponding terminal lugs 90 is one End of primary windings 75 to 77 connected.
  • the converter arrangement 12, 13 and 14 thus produced is then shown in FIG Way attached to the circuit board 10, preferably screwed tight, the other End 15 of the primary winding with an L-shaped plug lug 16, in each case for all 3 Phases, electrically connected. In this way, the current flows through the Connector lugs 16, the primary windings 75 to 77 to the connection lugs 87 to 89.
  • the legs 19 and 20 On the side of the printed circuit board 10, which carries the transducers 12 to 14, there are two Control coils 17 and 18 attached, the legs 19 and 20 one not closer embrace the illustrated yokes.
  • the coils 17 and 18 are not shown in detail Coupled with the secondary windings 65, 66 and 67, such that over the Coils 17 and 18, the legs 19 and 20 are magnetized.
  • FIG. 3 shows an insight into a housing 24 in which a rocker switch 25 is located, on which two contact bridges 26 and 27 are arranged, the fixed contact pieces 28 and 29 or 30 and 31 can bridge.
  • the rocker switch 25 to their Center axis M is pivoted to the right, the contact pieces 30 and 31 of the contact bridge 27 closed or electrically connected, whereas the Fixed contact pieces 28 and 29 are not connected to each other. Swing it Contact rocker 25 in the other direction to the left, then the moves away Contact bridge 27 from the contact pieces 30 and 31 and the two contact pieces 28 and 29 are connected to one another in an electrically conductive manner by means of the contact bridge 26.
  • the fixed contact pieces 28 to 31 pass through an end wall 32 and end in control terminal lugs 33, each fixed contact piece 28 to 31 each a control terminal lug 33 is assigned.
  • An inner guide wall runs parallel to the intermediate wall 38 39. Between the guide walls 36 and the inner guide wall 41 and the Ledge 39 and the guide wall 37, the inner guide wall 41 and the ledge 40 guide spaces 42 and 43 are formed.
  • a further intermediate wall 44 is located below the intermediate wall 38; between openings 45, 46 and 47 are provided in the two intermediate walls 38 and 44.
  • the two units are joined together in such a way that the unit according to FIGS. 1 and 2 in the direction of arrow P with the connecting lugs 87 to 89 and the yoke legs 19 and 20 is inserted into the cover 24, the connecting lugs 87 to 89 reach through the recesses 45 to 47 and the yoke legs 19, 20 in the Leadership rooms 42, 43 are introduced. It can be seen from this that an electric conductive connection between the two units is not present.
  • a cover plate is on the side of the Printed circuit board 10 attached, on which the connector tabs 16 project. After installation this cover plate, the overcurrent relay according to FIGS. 1 to 5 is fully assembled.
  • Fig. 6 shows a supplement to the electromagnetic unit: on the Printed circuit board 10 opposite side of the bobbin 50, 51, 52 is one another circuit board 100 attached, on the additional electronic components, here a Capacitor 101 are attached.
  • the circuit board 100 covers the spaces for the Secondary windings. This will save even more space Simplification of assembly is achieved insofar as the capacitor 101 is in the free space 99 can engage in the cover.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Control Of Linear Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Protection Of Generators And Motors (AREA)
EP00121152A 1999-09-30 2000-09-29 Relais électronique de surcharge Expired - Lifetime EP1089309B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29917174U DE29917174U1 (de) 1999-09-30 1999-09-30 Elektronisches Überlastrelais
DE29917174U 1999-09-30

Publications (3)

Publication Number Publication Date
EP1089309A2 true EP1089309A2 (fr) 2001-04-04
EP1089309A3 EP1089309A3 (fr) 2003-05-28
EP1089309B1 EP1089309B1 (fr) 2005-04-20

Family

ID=8079623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121152A Expired - Lifetime EP1089309B1 (fr) 1999-09-30 2000-09-29 Relais électronique de surcharge

Country Status (3)

Country Link
EP (1) EP1089309B1 (fr)
AT (1) ATE293839T1 (fr)
DE (2) DE29917174U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036117A1 (de) * 2004-07-24 2006-03-16 Tmc Sensortechnik Gmbh Thermobimetallschalter
EP2549606A1 (fr) 2011-07-21 2013-01-23 Eaton Industries GmbH Relais de surcharge électronique
WO2014005615A1 (fr) * 2012-07-02 2014-01-09 Siemens Aktiengesellschaft Ensemble transformateur de courant
CN104467615A (zh) * 2014-12-30 2015-03-25 刘浩 电动机绕组参数变换器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2079091B1 (fr) 2008-01-10 2014-01-29 Schneider Electric Industries SAS Boîtier de déclencheur électronique pour disjoncteur, dispositif de déclenchement électronique et procédé d'assemblage
FR2926393B1 (fr) * 2008-01-10 2009-12-18 Schneider Electric Ind Sas Bloc de transformation d'un declencheur electronique a double passage

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281359A (en) * 1980-03-14 1981-07-28 General Electric Company Static trip unit for molded case circuit breakers
US4427962A (en) * 1982-04-26 1984-01-24 Zenith Radio Corporation Low profile transformer bobbin
GB2193041A (en) * 1986-07-22 1988-01-27 Bach & Co Relay
US4884048A (en) * 1989-01-18 1989-11-28 General Electric Company Molded case circuit breaker current transformer assembly
US5015983A (en) * 1990-06-18 1991-05-14 General Electric Company Compact circuit interrupter having multiple ampere ratings
US5394127A (en) * 1991-07-09 1995-02-28 Siemens Aktiengesellschaft Electromagnetic relay
WO1998047164A1 (fr) * 1997-04-11 1998-10-22 Siemens Energy & Automation, Inc. Mecanisme de declenchement pour un relais de surcharge
US5892420A (en) * 1996-08-28 1999-04-06 General Electric Company Electronic circuit breaker having modular current transformer sensors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281359A (en) * 1980-03-14 1981-07-28 General Electric Company Static trip unit for molded case circuit breakers
US4427962A (en) * 1982-04-26 1984-01-24 Zenith Radio Corporation Low profile transformer bobbin
GB2193041A (en) * 1986-07-22 1988-01-27 Bach & Co Relay
US4884048A (en) * 1989-01-18 1989-11-28 General Electric Company Molded case circuit breaker current transformer assembly
US5015983A (en) * 1990-06-18 1991-05-14 General Electric Company Compact circuit interrupter having multiple ampere ratings
US5394127A (en) * 1991-07-09 1995-02-28 Siemens Aktiengesellschaft Electromagnetic relay
US5892420A (en) * 1996-08-28 1999-04-06 General Electric Company Electronic circuit breaker having modular current transformer sensors
WO1998047164A1 (fr) * 1997-04-11 1998-10-22 Siemens Energy & Automation, Inc. Mecanisme de declenchement pour un relais de surcharge

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036117A1 (de) * 2004-07-24 2006-03-16 Tmc Sensortechnik Gmbh Thermobimetallschalter
DE102004036117B4 (de) * 2004-07-24 2006-12-14 Tmc Sensortechnik Gmbh Thermobimetallschalter
EP2549606A1 (fr) 2011-07-21 2013-01-23 Eaton Industries GmbH Relais de surcharge électronique
WO2013011152A1 (fr) 2011-07-21 2013-01-24 Eaton Electrical Ip Gmbh & Co. Kg Relais de surcharge électronique
WO2014005615A1 (fr) * 2012-07-02 2014-01-09 Siemens Aktiengesellschaft Ensemble transformateur de courant
CN104467615A (zh) * 2014-12-30 2015-03-25 刘浩 电动机绕组参数变换器
CN104467615B (zh) * 2014-12-30 2017-06-13 刘浩 电动机绕组参数变换器

Also Published As

Publication number Publication date
DE29917174U1 (de) 2000-01-13
ATE293839T1 (de) 2005-05-15
EP1089309B1 (fr) 2005-04-20
EP1089309A3 (fr) 2003-05-28
DE50010086D1 (de) 2005-05-25

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