EP1089309B1 - Electronic overload relay - Google Patents
Electronic overload relay Download PDFInfo
- Publication number
- EP1089309B1 EP1089309B1 EP00121152A EP00121152A EP1089309B1 EP 1089309 B1 EP1089309 B1 EP 1089309B1 EP 00121152 A EP00121152 A EP 00121152A EP 00121152 A EP00121152 A EP 00121152A EP 1089309 B1 EP1089309 B1 EP 1089309B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- overload relay
- relay according
- circuit board
- printed circuit
- terminal links
- 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 - Lifetime
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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 commonly known thermal overload relay have one of the number phases to be protected corresponding to the number of thermostatic bimetals, over a slide on a switching mechanism act, so in the case of Overcurrent the supply lines z. B. shut down to a motor.
- overload relays operate on an electronic basis.
- Man leads the Current to the motor through current sensors detecting the overcurrent; over a suitable evaluation circuit are controlled switching contacts with which For example, a contactor is driven to turn off the phase conductors.
- pro Phase has a solenoid system, which has a core, two coils, each of a web of the core are penetrated, as well as trained as a conductor strip Have primary winding.
- the electromagnetic systems for each phase are each in used an elongated space in the housing of the switching device. Total are two primary windings wound on a respective bobbin so that two provided superposed bobbins are provided.
- the object of the invention is an electronic overload relay of the aforementioned To create a kind that can be easily manufactured and assembled.
- a leg of the core passes through a primary winding and the Secondary winding coil body, wherein the bobbin a first Room compartment for the secondary winding between two walls and a second Compartment is formed between two further walls for the primary winding, whereby a transducer is formed.
- connecting straps are provided, the two in the same direction have projecting parallel flags, one of which for mechanical Fixation in a receiving pocket on the bobbin serves and the other in the second Room compartment is electrically connected to the primary winding.
- the room compartments can be arranged side by side and by only one Wall be separated from each other.
- the walls are bobbin flanges.
- the bobbin on a PCB attached.
- the converter is arranged on one side of the circuit board; on the other side there is a cover which is used to guide the primary conductors slotted.
- the cover carries fixed contact pieces with movable contact pieces on a cooperate within the cover rocker switch, which in two stable positions is adjustable, in which they with different fixed contact pieces can be combined according to the state in the overload relay.
- rocker switch control coils are on the circuit board with a yoke attached with two yoke legs, with the yoke legs in the same direction as the terminal lugs project.
- rocker permanent magnets On the rocker permanent magnets can be attached, which in the mounted state in The area of the yoke legs lie so that over the yoke legs and the control coils the rocker and thus the movable contact pieces are driven.
- Fig. 1 shows a side view of a first unit for an electronic Overcurrent relays.
- transducers 11 are attached, for example by means of a screw connection, not shown.
- Fig. 2 it can be seen that the converter of a number of phase conductors corresponding number of three Transducer elements 12, 13, 14 is composed.
- a bobbin 50, 51 and 52 is provided, which is a rectangular Coil tube 53, 54 and 55 has, at its two ends in each case with a radial flange 56 and 57, 58, 59, 60 and 61 is limited, whereby in each case a first Room 62, 63 and 64 is formed, which, as is apparent from Figs. 1 and 2, respectively a secondary winding 65, 66 and 67 carries.
- the reel tube 53, 54 and 55 settles over the flange 57, 59, 61 as well the front visible in Fig. 5 bobbin 50 can be seen with a Coil tube extension 68 continues; the free end of the coil tube extension 68 is of another flange 69, 70, 71, 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 takes up.
- Each sub-converter is associated with a rectangular core 78, 79, 80, which consists of several Laminated sheet is composed and forms a rectangular ring in cross section, and with its non-visible leg through the coil tube 68/53, 54 and 55th passed through.
- a rectangular core 78, 79, 80 which consists of several Laminated sheet is composed and forms a rectangular ring in cross section, and with its non-visible leg through the coil tube 68/53, 54 and 55th passed through.
- each of the terminal lugs 87 to 89 has a cranked Projection 90 and a flat projection 91, which in supervision one another forming a two-pronged fork.
- the projection 91 or leg 91 of all three Terminal lugs 87 to 89 is in each case in the receiving pocket 84, 85 and 86 for Holder inserted and to the corresponding terminal lugs 90 is the one End of the primary windings 75 to 77 connected.
- the transducer assembly 12, 13 and 14 thus manufactured is then not closer shown attached to the circuit board 10, preferably screwed, wherein the other end 15 of the primary winding with an L-shaped connector lug 16, respectively for all three phases, is electrically connected. This is how the electricity flows through the connector lugs 16 and the primary windings 75 to 77 to the Connection lugs 87 to 89.
- FIG. 3 shows an insight into a housing 24 in which a rocker switch 25 is located on the 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 around their Center axis M is pivoted to the right (clockwise), the Contact pieces 30 and 31 of the contact bridge 27 closed or electrically conductive connected, whereas the fixed contact pieces 28 and 29 are not connected to each other are. Swings the contact rocker 25 in the other direction to the left, then removed the contact bridge 27 of the contact pieces 30 and 31 and the two Contact pieces 28 and 29 are electrically conductive by means of the contact bridge 26 connected with each other.
- the fixed contact pieces 28 to 31 pass through an end wall 32 and terminate in control terminal lugs 33, each fixed contact piece 28 to 31 each associated with a control terminal lug 33.
- Below the contact rocker 25 jump starting from the vertically extending side walls 34 and 35, Guide walls 36 and 37 in front; on a horizontal partition wall 38 are webs 39th and 40 are provided. Parallel to the intermediate wall 38 extends an inner guide wall 39. Between the guide walls 36 and the inner guide wall 41 and the Bar 39 and the guide wall 37, the inner guide wall 41 and the bar 40th are guide spaces 42 and 43 formed.
- intermediate wall 38 Below the intermediate wall 38 is another intermediate wall 44; between the two intermediate walls 38 and 44 openings 45, 46 and 47 are provided.
- circuit board 10 with the transducers 12 to 14 and the other components on the one hand and the housing 24, as a cover can be designated, according to FIGS. 3 and 4, a further unit is formed, the are pre-assembled.
- connection lugs 87 to 89 and the Yoke legs 19 and 20 are inserted into the cover 24, wherein the Connection lugs 87 to 89 pass through the recesses 45 to 47 and the Yoke legs 19, 20 are inserted into the guide spaces 42, 43.
- an electrically conductive connection between the two units is not is available.
- Fig. 6 shows a supplement of the electromagnetic unit: on the Printed circuit board 10 opposite side of the bobbin 50, 51, 52 is a further printed 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 further save space and Assembly simplification, insofar as the condenser 101 enters the clear 99 can engage in the cover.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Linear Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
Die Erfindung betrifft ein elektronisches Überlastrelais für ein elektrisches Installationsgerät gemäß dem Oberbegriff des Anspruches 1.The invention relates to an electronic overload relay for an electrical Installation device according to the preamble of claim 1.
Die üblicherweise bekannten thermischen Überstromrelais besitzen eine der Anzahl der abzusichernden Phasen entsprechend der Anzahl von Thermobimetallen, die über einen Schieber auf einen Schaltmechanismus einwirken, damit im Falle eines Überstroms die Zuleitungen z. B. zu einem Motor abgeschaltet werden.The commonly known thermal overload relay have one of the number phases to be protected corresponding to the number of thermostatic bimetals, over a slide on a switching mechanism act, so in the case of Overcurrent the supply lines z. B. shut down to a motor.
Neuerdings arbeiten derartige Überlastrelais auf elektronischer Basis. Man leitet den Strom zum Motor durch Stromsensoren, die den Überstrom detektieren; über eine geeignete Auswerteschaltung werden Schaltkontakte angesteuert, mit denen beispielsweise ein Schütz angesteuert wird, um die Phasenleiter abzuschalten.Recently, such overload relays operate on an electronic basis. Man leads the Current to the motor through current sensors detecting the overcurrent; over a suitable evaluation circuit are controlled switching contacts with which For example, a contactor is driven to turn off the phase conductors.
Aus der US 4,884,048 ist ein elektrisches Schaltgerät bekannt geworden, welches pro Phase ein Elektromagnetsystem aufweist, das einen Kern, zwei Spulen, die jeweils von einem Steg des Kerns durchgriffen werden, sowie eine als Leiterstreifen ausgebildete Primärwicklung aufweisen. Die Elektromagnetsysteme für jede Phase werden jeweils in einen langgestreckten Raum im Gehäuse des Schaltgerätes eingesetzt. Insgesamt sind zwei Primärwicklungen auf jeweils einem Spulenkörper aufgewickelt, so dass zwei übereinander gesetzte Spulenkörper vorgesehen sind.From US 4,884,048 an electrical switching device has become known which pro Phase has a solenoid system, which has a core, two coils, each of a web of the core are penetrated, as well as trained as a conductor strip Have primary winding. The electromagnetic systems for each phase are each in used an elongated space in the housing of the switching device. Total are two primary windings wound on a respective bobbin so that two provided superposed bobbins are provided.
Aufgabe der Erfindung ist es, ein elektronisches Überlastrelais der eingangs genannten Art zu schaffen, das einfach hergestellt und montiert werden kann. The object of the invention is an electronic overload relay of the aforementioned To create a kind that can be easily manufactured and assembled.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1 .
Danach durchgreift ein Schenkel des Kerns einen die Primärwicklung und die Sekundärwicklung tragenden Spulenkörper, wobei am Spulenkörper ein erstes Raumabteil für die Sekundärwicklung zwischen zwei Wandungen und ein zweites Raumabteil zwischen zwei weiteren Wandungen für die Primärwicklung angeformt ist, wodurch ein Wandler gebildet wird.Thereafter, a leg of the core passes through a primary winding and the Secondary winding coil body, wherein the bobbin a first Room compartment for the secondary winding between two walls and a second Compartment is formed between two further walls for the primary winding, whereby a transducer is formed.
Weiterhin sind Anschlusslaschen vorgesehen, die zwei in gleiche Richtung vorspringende parallele Fahnen aufweisen, von denen eine zur mechanischen Fixierung in eine Aufnahmetasche am Spulenkörper dient und die andere im zweiten Raumabteil mit der Primärwicklung elektrisch leitend verbunden ist.Furthermore, connecting straps are provided, the two in the same direction have projecting parallel flags, one of which for mechanical Fixation in a receiving pocket on the bobbin serves and the other in the second Room compartment is electrically connected to the primary winding.
Dabei können die Raumabteile nebeneinander angeordnet und durch nur eine Wandung voneinander getrennt sein. Die Wandungen sind dabei Spulenkörperflansche.The room compartments can be arranged side by side and by only one Wall be separated from each other. The walls are bobbin flanges.
Zwar ist aus der US 4, 427,962 A1 ein Spulenkörper bekannt geworden, der sowohl die Primär- als auch die Sekundärwicklung trägt, die beide mittels eines umlaufenden Flansches voneinander getrennt sind. Da aber der Kern diesen Spulenkörper von außen umgibt, kann er nicht bei einem Überstromrelais angewendet werden.Although it is known from US 4,427,962 A1 a bobbin, both the Carries both primary and secondary winding, both by means of a circumferential Flange are separated. But since the core of this bobbin of outside, it can not be applied to an overcurrent relay.
Aus der US 5,892,420 A1 ist ein Wandler bekannt geworden, der dem Wandler der US 4,884,048 A1 entspricht und bei dem an einem der Spulenkörper für die Sekundärwicklung ein Ansatz angebracht ist, in dem eine Anschlussfahne geführt ist. Wie diese Anschlussfahne allerdings ausgebildet ist, ist der US 5,892,420 nicht zu entnehmen.From US 5,892,420 A1, a converter has become known, the converter of the US 4,884,048 A1 corresponds and in which at one of the bobbin for the Secondary winding is attached to an approach in which a terminal lug is guided. However, as this terminal lug is designed, US 5,892,420 is not too remove.
Gemäß einer weiteren Ausgestaltung der Erfindung sind die Spulenkörper an einer Leiterplatte befestigt. Dabei ist der Wandler auf einer Seite der Leiterplatte angeordnet; auf der anderen Seite befindet sich eine Abdeckung, die zur Führung der Primärleiter mit Schlitzen versehen ist. According to a further embodiment of the invention, the bobbin on a PCB attached. In this case, the converter is arranged on one side of the circuit board; on the other side there is a cover which is used to guide the primary conductors slotted.
Die Abdeckhaube trägt Festkontaktstücke, die mit beweglichen Kontaktstücken an einer innerhalb der Abdeckhaube befindlichen Schaltwippe zusammenwirken, die in zwei stabile Stellungen verstellbar ist, in denen sie mit unterschiedlichen Festkontaktstücken entsprechend dem Zustand im Überlastrelais kombinierbar sind.The cover carries fixed contact pieces with movable contact pieces on a cooperate within the cover rocker switch, which in two stable positions is adjustable, in which they with different fixed contact pieces can be combined according to the state in the overload relay.
Zur Ansteuerung der Schaltwippe sind auf der Leiterplatte Steuerspulen mit einem Joch mit zwei Jochschenkeln befestigt, wobei die Jochschenkel in die gleiche Richtung wie die Anschlussfahnen vorspringen.To control the rocker switch control coils are on the circuit board with a yoke attached with two yoke legs, with the yoke legs in the same direction as the terminal lugs project.
An der Wippe können dabei Dauermagnete befestigt sein, die im montierten Zustand im Bereich der Jochschenkel liegen, so dass über die Jochschenkel und die Steuerspulen die Wippe und damit die beweglichen Kontaktstücke antreibbar sind.On the rocker permanent magnets can be attached, which in the mounted state in The area of the yoke legs lie so that over the yoke legs and the control coils the rocker and thus the movable contact pieces are driven.
Mit dieser Ausgestaltung können die Leiterplatte mit dem Wandler und den Steuerspulen und gegebenenfalls weiteren elektronischen Bauteile einerseits und die Abdeckhaube mit der Schaltwippe und den festen und beweglichen Kontaktstücken andererseits je eine vormontierbare Einheit bilden, die zur Montage einfach ineinander gesteckt werden können. Dabei ist eine elektrisch leitende Verbindung mit entsprechendem Arbeitsgang zwischen den beiden Einheiten nicht erforderlich, da zwischen beiden eine induktive Kupplung hergestellt wird.With this configuration, the circuit board with the converter and the Control coils and optionally 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, which are easy to mount each other can be plugged. It is an electrically conductive connection with corresponding operation between the two units is not required because between both an inductive coupling is made.
Weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind den weiteren Unteransprüchen zu entnehmen.Further advantageous embodiments and improvements of the invention are the to remove further subclaims.
Anhand der Zeichnung, in der einige Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Reference to the drawing, in which some embodiments of the invention shown are, the invention and other advantageous embodiments and Improvements of the invention are explained and described in more detail.
Es zeigen
- Fig. 1 :
- eine Seitenansicht auf eine erste Einheit mit Leiterplatte,
- Fig. 2:
- eine aufsichtsgemäße Zeilrichtung II-II der Fig. 1,
- Fig. 3:
- eine Einsicht in eine zweite Einheit,
- Fig. 4:
- eine Schnittansicht gemäß Schnittlinie IV-IV,
- Fig. 5:
- die Wandlereinheit, teilweise gezeichnet, vor der Endmontage, und
- Fig. 6:
- eine ergänzte Version der Wandlereinheit.
- Fig. 1:
- a side view of a first unit with circuit board,
- Fig. 2:
- a regulatory line direction II-II of Fig. 1,
- 3:
- an insight into a second unit,
- 4:
- a sectional view along section line IV-IV,
- Fig. 5:
- the transducer unit, partially drawn, before final assembly, and
- Fig. 6:
- a supplemented version of the converter unit.
Es sei Bezug genommen auf die Fig. 1.Reference is made to FIG. 1.
Die Fig. 1 zeigt eine Seitenansicht einer ersten Einheit für ein elektronisches
Überstromrelais. Auf einer Leiterplatte 10 sind Wandler 11 befestigt, beispielsweise
mittels einer nicht näher dargestellten Schraubverbindung. Aus Fig. 2 ist ersichtlich,
dass der Wandler aus einer der Anzahl der Phasenleiter entsprechenden Anzahl dreier
Wandlerelemente 12, 13, 14 zusammengesetzt ist.Fig. 1 shows a side view of a first unit for an electronic
Overcurrent relays. On a
Es sei nun Bezug genommen auf die Fig. 5.Reference is now made to FIG. 5.
Für jeden Wandler ist ein Spulenkörper 50, 51 und 52 vorgesehen, der ein rechteckiges
Spulenrohr 53, 54 und 55 besitzt, das an seinen beiden Enden jeweils mit einem
radialen Flansch 56 bzw. 57, 58, 59, 60 und 61 begrenzt ist, wodurch jeweils ein erster
Raum 62, 63 und 64 gebildet ist, der, wie aus den Fig. 1 und 2 ersichtlich ist, jeweils
eine Sekundärwicklung 65, 66 und 67 trägt.For each transducer, a
Das Spulenrohr 53, 54 und 55 setzt sich über den Flansch 57, 59, 61 hinaus, wie an
dem in der Fig. 5 vorne sichtbare Spulenkörper 50 zu sehen ist, mit einer
Spulenrohrverlängerung 68 fort; das freie Ende der Spulenrohrverlängerung 68 ist von
einem weiteren Flansch 69, 70, 71 begrenzt, wobei zwischen den Flanschen 57, 69, 59,
70, 61, 71 ein zweiter Raum 72, 73, 74 gebildet ist, der eine Primärwicklung 75, 76 und
77 aufnimmt.The
Jedem Teilwandler ist ein rechteckiger Kern 78, 79, 80 zugeordnet, der aus mehreren
Blechlamellen zusammengesetzt ist und im Querschnitt einen rechteckigen Ring bildet,
und mit seinem nicht sichtbaren Schenkel durch das Spulenrohr 68/53, 54 und 55
hindurchgeführt ist. Damit wird die Primärwicklung 75, 76 und 77 von dem einen
Schenkel je des Kerns durchgriffen, ebenso wie die Sekundärwicklungen 65, 66 und 67. Each sub-converter is associated with a
An den Spulenkörpern 50, 51 und 52 sind Taschen 81, 82 und 83 mit
Aufnahmeöffnungen 84, 85 und 86 angeformt, die zur Aufnahme von Anschlussfahnen
87, 88 und 89 dienen. Jede der Anschlussfahnen 87 bis 89 besitzt einen abgekröpften
Vorsprung 90 und einen flachen Vorsprung 91, die in Aufsicht miteinander eine
zweizinkige Gabel bilden. Der Vorsprung 91 oder Schenkel 91 aller drei
Anschlussfahnen 87 bis 89 wird jeweils in die Aufnahmetasche 84, 85 und 86 zur
Halterung eingesteckt und an das entsprechende Anschlussfahnen 90 wird das ein
Ende der Primärwicklungen 75 bis 77 angeschlossen.On the
Die so gefertigte Wandleranordnung 12, 13 und 14 wird dann in nicht näher
dargestellter Weise an der Leiterplatte 10 befestigt, vorzugsweise festgeschraubt, wobei
das andere Ende 15 der Primärwicklung mit einer L-förmigen Steckerfahne 16, jeweils
für alle drei Phasen, elektrisch leitend verbunden ist. Auf diese Weise fließt der Strom
durch die Steckerfahnen 16 und die Primärwicklungen 75 bis 77 zu den
Anschlussfahnen 87 bis 89.The
Auf der Seite der Leiterplatte 10, die die Wandler 12 bis 14 trägt, sind zwei
Steuerspulen 17 und 18 befestigt, die die Schenkel 19 und 20 eines nicht näher
dargestellten Joches umgreifen. Die Spulen 17 und 18 sind auf nicht näher dargestellte
Weise mit den Sekundärwicklungen 65, 66 und 67 gekoppelt, dergestalt, dass über die
Spulen 17 und 18 die Schenkel 19 und 20 magnetisiert werden.On the side of the
Bei der Anordnung gemäß Fig. 1 befinden sich auf der Leiterplatte weiterhin noch
elektronische Komponenten 21 und 22, die zur Verarbeitung der von der
Sekundärwicklung 12 bis 14 herrührenden Signale dienen.In the arrangement of FIG. 1 are still on the circuit board
Wie aus Fig. 1 ersichtlich ist, springen die Anschlussfahnen 87 bis 89 und die
Jochschenkel 19 und 20 von einer Seite der Leiterplatte 10 vor, wogegen die
Steckerfahnen 16 auf der entgegensetzten Seite der Leiterplatte 10 über einen
Haltesteg 23 an dieser befestigt sind.As can be seen from Fig. 1, jump the terminal lugs 87 to 89 and the
Die Fig. 3 zeigt eine Einsicht in ein Gehäuse 24, in dem sich eine Schaltwippe 25
befindet, an der zwei Kontaktbrücken 26 und 27 angeordnet sind, die Festkontaktstücke
28 und 29 bzw. 30 und 31 überbrücken können. Wenn die Schaltwippe 25 um ihre
Mittelachse M nach rechts (im Uhrzeigersinn) verschwenkt wird, werden die
Kontaktstücke 30 und 31 von der Kontaktbrücke 27 geschlossen bzw. elektrisch leitend
verbunden, wogegen die Festkontaktstücke 28 und 29 nicht miteinander verbunden
sind. Schwenkt die Kontaktwippe 25 in die andere Richtung nach links, dann entfernt
sich die Kontaktbrücke 27 von den Kontaktstücken 30 und 31 und die beiden
Kontaktstücke 28 und 29 werden mittels der Kontaktbrücke 26 elektrisch leitend
miteinander verbunden.3 shows an insight into a
Die feststehenden Kontaktstücke 28 bis 31 durchgreifen eine Stirnwand 32 und enden
in Steueranschlussfahnen 33, wobei jedem feststehenden Kontaktstück 28 bis 31
jeweils eine Steueranschlussfahne 33 zugeordnet ist. Unterhalb der Kontaktwippe 25
springen, ausgehend von den vertikal verlaufenden Seitenwandungen 34 und 35,
Führungswände 36 und 37 vor; auf einer horizontalen Zwischenwand 38 sind Stege 39
und 40 vorgesehen. Parallel zur Zwischenwand 38 verläuft eine innere Führungswand
39. Zwischen den Führungswänden 36 und der inneren Führungswand 41 sowie der
Leiste 39 und der Führungswand 37, der inneren Führungswand 41 und der Leiste 40
sind Führungsräume 42 und 43 gebildet.The fixed
Unterhalb der Zwischenwand 38 befindet sich eine weitere Zwischenwand 44; zwischen
den beiden Zwischenwänden 38 und 44 sind Durchbrüche 45, 46 und 47 vorgesehen.Below the
Man erkennt aus den Fig. 1 und 2, dass die Leiterplatte 10 mit den Wandlern 12 bis 14
und den weiteren Komponenten einerseits und das Gehäuse 24, das als Abdeckhaube
bezeichnet werden kann, gemäß den Fig. 3 und 4 eine weitere Einheit gebildet ist, die
vormontierbar sind.It can be seen from FIGS. 1 and 2, that the
Das Zusammenfügen der beiden Einheiten erfolgt so, dass die Einheit gemäß Fig. 1
und 2 gemäß Pfeilrichtung P mit den Anschlussfahnen 87 bis 89 sowie den
Jochschenkeln 19 und 20 in die Abdeckhaube 24 eingefügt wird, wobei die
Anschlussfahnen 87 bis 89 die Ausnehmungen 45 bis 47 durchgreifen und die
Jochschenkel 19, 20 in die Führungsräume 42, 43 eingeführt werden. Man erkennt
hieraus, dass eine elektrisch leitende Verbindung zwischen den beiden Einheiten nicht
vorhanden ist.The joining of the two units takes place in such a way that the unit according to FIG. 1
and 2 according to the direction of arrow P with the connection lugs 87 to 89 and the
Zur Fertigmontage wird eine nicht näher dargestellte Abdeckplatte auf der Seite der
Leiterplatte 10 angebracht, auf der die Steckerfahnen 16 vorspringen. Nach Anbringung
dieser Abdeckplatte ist das Überstromrelais gemäß den Fig. 1 bis 5 fertig montiert.For final assembly, a cover plate not shown on the side of the
Printed
Nachzutragen ist, dass an der Kontaktwippe 25 Permanentmagnete angebracht sind,
die mit den Jochschenkeln 19, 20 wechselweise zusammenwirken. Ein Einstellknopf 48
zum Rückstellen und zum Einstellen einer manuellen Rückstellung oder automatischen
Rückstellung wirkt mit der Wippe 25 zusammen, ebenso wie eine Stoptaste 49 zur
Unterbrechung der Kontakte 28, 29 durch die Brücke 43.It should be added that permanent magnets are attached to the contact rocker 25,
which interact alternately with the
Die Fig. 6 zeigt eine Ergänzung der elektromagnetischen Einheit: auf der der
Leiterplatte 10 entgegengesetzt liegenden Seite der Spulenkörper 50, 51, 52 ist eine
weitere Leiterplatte 100 befestigt, auf der zusätzliche elektronische Bauteile, hier ein
Kondensator 101, befestigt sind. Die Leiterplatte 100 überdeckt die Räume für die
Sekundärwicklungen. Dadurch wird eine weitere Raumeinsparung und
Montagevereinfachung erzielt, insoweit, als der Kondensator 101 in den freien Raum 99
in der Abdeckhaube eingreifen kann.Fig. 6 shows a supplement of the electromagnetic unit: on the
Printed
Claims (12)
- An electronic overload relay for en electric accessory for motor protection, comprising an electromagnetic system expanding a primary winding or a primary conductor (hereinafter referred to as primary winding), a secondary winding and a rectangular core, each per phase, characterized in that one leg of the core (78, 79, 80) penetrates a coil former (50, 51, 52) carrying the primary winding (75, 76, 77) and the secondary winding (65, 66, 67), that a first space compartment (62, 63, 64) is formed on the coil former (50, 51, 52) for the secondary winding (65, 66, 67) between the two walls (56, 57; 58, 59; 60, 61) and a second space compartment (72, 73, 74) is formed between the walls (56, 57; 58, 59; 60, 61) and a further wall (69, 70, 71) each for the primary winding (75, 76, 77) and each thus form a transformer, that terminal links (87, 88, 89) are provided which comprise two parallel lugs (90, 91) projecting in the same direction, of which one is used for mechanical fixing in a receiving pocket (84, 85, 86) each on the coil former (50, 51, 52) and the other is connected in an electrically conductive manner in the second space compartment (72, 73, 74) with the primary winding (75, 76, 77).
- An overload relay according to claim 1, characterized in that the ends of the secondary winding wire are guided to the adjacent outer wall, fixed therein and are connected in an electrically conductive manner with pins which are inserted into the openings of a printed circuit board (10) and are connected therein in an electrically conductive manner with further connection lines on the printed circuit board, as a result of which two fastening points for the transformer are formed on the printed circuit board.
- An overload relay according to claim 2, characterized in that the coil formers (50, 51, 52) are fixed to the printed circuit board (10).
- An overload relay according to one of the preceding claims, characterized in that the rectangular core (78, 79, 80) is formed by laminated sheet metal which are divided so that they can be and are inserted through the coil former (50, 51, 52).
- An overload relay according to claim 4, characterized in that the plates are provided with chamfers at the outer corners of the rectangular shape where the plates are mutually connected in a transversal way, preferably welded together.
- An overload relay according to one of the preceding claims, characterized in that the electromagnetic system is covered by a covering cap (24) which has breakthroughs at least for the terminal links (87, 88, 89), so that connecting leads can be connected to the same outside of the covering cap (24).
- An overload relay according to one of the preceding claims, characterized in that two control coils (17, 18) which are electrically conductively connected with the transformer with a yoke with two yoke legs (19, 20) on the side of the printed circuit board (10) carrying the transformer, with the yoke legs (19, 20) project in the same direction as the terminal links (87, 88, 89).
- An overload relay according to one of the preceding claims, characterized in that stationary contact members (28, 29, 30, 31) are arranged on the covering cap (24) which cooperate with movable contact members (26, 27) on a rocker switch (24) situated within the covering cap (24) which are adjustable to two stable positions in which they can be put into contact with different contact members according to the state in the overload relay (overcurrent by primary conductor, tripping or reset).
- An overload relay according to claim 8, characterized in that permanent magnets are fastened to the rocker switch (29) which lie in the region of the yoke legs (19, 20) in the mounted state, so that the control coil (29) and thus the movable contact members (26, 27) can be driven via the yoke legs (19, 20) and the control coils (17, 18).
- An overload relay according to one of the preceding claims, characterized in that the lugs (91) for mechanically fixing the terminal links (87, 88, 89) lie in the plane of the terminal links (87, 88, 89).
- An overload relay according to one of the preceding claims, characterized in that the lugs (90) of the terminal links (87, 88, 89) to which the primary conductors are connected are pressed out of the plane of the terminal links (87, 88, 89) and extend parallel thereto.
- An overload relay according to one of the preceding claims, characterized in that the printed circuit board (10) with transformer and control coils (17, 18) and optionally further electronic or electric components (22, 101) and the covering cap (24) with the rocker switch (29) and the contact points form in combination a premountable unit, with the said components insertable into each other and being inductively coupled with each other for mounting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29917174U | 1999-09-30 | ||
| DE29917174U DE29917174U1 (en) | 1999-09-30 | 1999-09-30 | Electronic overload relay |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1089309A2 EP1089309A2 (en) | 2001-04-04 |
| EP1089309A3 EP1089309A3 (en) | 2003-05-28 |
| EP1089309B1 true EP1089309B1 (en) | 2005-04-20 |
Family
ID=8079623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00121152A Expired - Lifetime EP1089309B1 (en) | 1999-09-30 | 2000-09-29 | Electronic overload relay |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1089309B1 (en) |
| AT (1) | ATE293839T1 (en) |
| DE (2) | DE29917174U1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004036117B4 (en) * | 2004-07-24 | 2006-12-14 | Tmc Sensortechnik Gmbh | bimetal thermoswitch |
| FR2926393B1 (en) * | 2008-01-10 | 2009-12-18 | Schneider Electric Ind Sas | TRANSFORMATION BLOCK OF A DOUBLE-PASSING ELECTRONIC TRIGGER |
| PL2079091T3 (en) | 2008-01-10 | 2014-07-31 | Schneider Electric Ind Sas | Voltage trigger case for a circuit breaker, voltage trigger device and assembly method |
| EP2549606A1 (en) | 2011-07-21 | 2013-01-23 | Eaton Industries GmbH | Electronic overload relay |
| BR112014032888A2 (en) * | 2012-07-02 | 2017-06-27 | Siemens Ag | current transformer assembly and electrical protection device |
| CN104467615B (en) * | 2014-12-30 | 2017-06-13 | 刘浩 | motor winding parameter converter |
Family Cites Families (8)
| 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 |
| DE3645337C2 (en) * | 1986-07-22 | 1997-08-14 | Bach & Co | Relay esp. for domestic electric heater |
| 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 |
| DE4122704C2 (en) * | 1991-07-09 | 1993-12-16 | Siemens Ag | Electromagnetic relay |
| US5892420A (en) * | 1996-08-28 | 1999-04-06 | General Electric Company | Electronic circuit breaker having modular current transformer sensors |
| US6025766A (en) * | 1997-04-11 | 2000-02-15 | Siemens Energy & Automation, Inc. | Trip mechanism for an overload relay |
-
1999
- 1999-09-30 DE DE29917174U patent/DE29917174U1/en not_active Expired - Lifetime
-
2000
- 2000-09-29 EP EP00121152A patent/EP1089309B1/en not_active Expired - Lifetime
- 2000-09-29 DE DE50010086T patent/DE50010086D1/en not_active Expired - Lifetime
- 2000-09-29 AT AT00121152T patent/ATE293839T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE50010086D1 (en) | 2005-05-25 |
| DE29917174U1 (en) | 2000-01-13 |
| ATE293839T1 (en) | 2005-05-15 |
| EP1089309A2 (en) | 2001-04-04 |
| EP1089309A3 (en) | 2003-05-28 |
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