EP1251541A1 - Motorschutzschalter - Google Patents
Motorschutzschalter Download PDFInfo
- Publication number
- EP1251541A1 EP1251541A1 EP01109839A EP01109839A EP1251541A1 EP 1251541 A1 EP1251541 A1 EP 1251541A1 EP 01109839 A EP01109839 A EP 01109839A EP 01109839 A EP01109839 A EP 01109839A EP 1251541 A1 EP1251541 A1 EP 1251541A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protection switch
- motor protection
- extension
- housing
- thermal
- 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
Links
- 238000007789 sealing Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 2
- 210000001331 nose Anatomy 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
-
- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- 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
- H01H71/164—Heating elements
Definitions
- the invention relates to a motor protection switch according to the preamble of the claim 1.
- a motor protection switch of the type mentioned is known from DE 42 13 729 C2 become.
- one is open towards the mounting level Bowl body provided in which the contact points and the arc extinguishing plates are located; the fixed contact pieces are with electrical conductor sections, which are located on the outer side of the bowl bottom, firmly connected.
- a further cup-shaped housing that which is open to the fastening level is opened Cup housing closed.
- the triggers are on the side of the bowl bottom, that of the mounting level is opposite.
- a rotary shaft, on which a lever is attached, with which the Movable contact pieces can be operated is by means of a support with support legs led at the bottom of the bowl; the carrier has a plate on which a key switch is appropriate.
- An electrical circuit breaker has become known from EP 0 501 844 B1, at which the thermal and magnetic triggers a magnetothermal subunit form and are arranged on a base made of insulating material. On the subunit is also a lever articulated with which the movable contact pieces in the off position to be spent. In addition, thermal and magnetic Trigger arranged a terminal, the thermal trigger on one Carrier plate made of electrically conductive material is fastened in the base insulating material is guided. With the support made of insulating material is also a Supporting element made of insulating material for the magnetic release.
- An arc guide rail is also a carrier made of electrically insulating material anchored with a fixed contact piece so that the entire unit the thermal release, the magnetic release, a connector and the Arc guide rail with corresponding contact piece.
- the components insulating material have side strips, which are in grooves in the housing of the Narrow side can be inserted into this.
- the object of the invention is to provide a circuit breaker of the type mentioned create, in which the assembly is considerably simplified.
- the thermal release and the fixed contact piece attached to a band-like extension of the electromagnetic release wherein the contact piece is attached to the side of the extension facing the thermal Trigger is opposite.
- This unit is inserted perpendicular to the floor level in the Lower housing part used, the band-like extension of the contact point space seals from the trigger space.
- the particular advantage of the configuration according to the invention is that the thermal release and the electromagnetic release as well as the fixed one Contact piece together with the connecting terminal forming a unit in the lower housing part can be used; this simplifies assembly because all Components can be inserted from top to bottom.
- FIG. 1 has a lower housing part 11, which is approximately a cup shape having a bottom portion 12 and side walls 13 and 14.
- a lower housing part 11 is approximately a cup shape having a bottom portion 12 and side walls 13 and 14.
- an intermediate part 15 with its peripheral wall section 16 pushed, which has an intermediate plate 17 on which another rotating Wall section 18 is formed, which bounds an interior in which several Chambers 19, 20 and 21 are formed by partitions 22 and 23.
- On the Wall section 18 is then pushed the housing cover 24.
- the Wall sections 16, 18 project in opposite directions.
- Fig. 3 shows the intermediate housing 15 and the chambers 19, 20 and 21, wherein in the chamber 19 a unit 40 with an electromagnetic and a thermal Trigger and a terminal is already inserted.
- the unit 40 has a yoke 41 which is U-shaped with a web 42 and two vertically extending legs 43 and 44 is formed. Between the legs 43 and 44 is a coil 45 with a protruding from the leg 43 Armature 46 and a return spring 47 for armature 46.
- a perpendicularly extending web 48 is formed, which is parallel runs to the web 41 and projects in the opposite direction from the leg 44.
- An extension 49 is integrally formed on the web 48, which extends in the same direction protrudes like legs 43 and 44.
- thermobimetal 50 is attached to the extension 49 and has a heating winding 51 wearing. On the yoke 41, a terminal 52 is also attached.
- the unit 40 is now inserted into the chambers 19, 20 and 21 from above.
- the extension 49 is widened relative to the leg 43 and 44 and sets itself, as shown in FIG. 1, against shoulders formed on both sides of the chambers 19 53 and 54, which have a nose 55 and 56 projecting against the direction of insertion as well as inwardly adjoining grooves 57 and 58; because of the noses 54 and 55 and the grooves 56 and 57, which are covered by the extension 49, there is a labyrinth seal created, the contact spaces 32, 33 and 34 of the Separate or seal trigger spaces 19, 20 and 21.
- Recesses 60 are formed on the intermediate part 15, in which a selector shaft is guided is on which in a direction parallel to the bimetal 50 a pin 62 and perpendicular to it Arms are formed on the one hand with the movable contact bridges 35 and on the other hand cooperate with the armature 46 of each magnetic release. You can tell 3 that on the unit 40 on the opposite of the bimetallic 50 An arc guide rail 59 is attached to the side, which fixes the fixed contact piece 38 wearing.
- a hold-down device 70 is placed in the cutouts 60 and has a support plate 71 with feet 72, 73 and 74 formed thereon perpendicularly thereto, with the Feet 72, of which only one is visible, a recess 75 is provided, which engages over the shaft 61, so that the hold-down 70 with the feet 72 and Recesses 75, the shaft 61 is held in the intermediate housing.
- the two feet 73 and 74 are with a connecting block 76 which is perpendicular to both runs, bridges.
- the connecting block 76 carries on the down, so in Direction to the intermediate part-indicating surface support lugs 77, 78 and 79, which in press the assembled state onto the extension 49 and thus the entire unit 40 fix in their corresponding chamber.
- the connection block 76 serves at the same time to hold the terminals 52.
- a key switch 80 is attached, with which the Contact points are opened permanently.
- this switching mechanism 80 engages Pin 62 and on the other an extension 63 on the bimetallic 50 to a to unlatch the latching point located there, not shown in detail.
- Fig. 5 shows the fully assembled intermediate part with the bimetallic 50, the fixed Rotary shaft 61 and the hold-down 70 for fixing the Extension 49 and for the switch lock 80.
- the unit shown in Fig. 5 is inserted into the lower housing part 11 and on the other hand closed with the cover cap 24 shown in dashed lines in FIG. 1. Adjustment devices, not shown, protrude from the cover cap 24 a shift shaft 81 out.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
- Fig. 1
- eine Schnittansicht gemäß Schnittlinie I-I der Fig. 2,
- Fig. 2
- eine Einsicht in das Schaltgerät gemäß Pfeilrichtung P, und
- Fig. 3 bis 5
- unterschiedliche Montageschritte bei der Montage des Schaltgerätes.
Claims (4)
- In einem ein Gehäuseunterteil und ein Gehäuseoberteil aufweisenden Gehäuse untergebrachter Motorschutzschalter mit einem thermischen und einem magnetischen Auslöser pro Phase, mit wenigstens einer je ein feststehendes und ein bewegliches Kontaktstück aufweisenden Kontaktstelle pro Phase, wobei der Auslöser und die Kontaktstellen jeweils in einer eigenen Kammer im Gehäuseunterteil des Motorschutzschalters untergebracht sind, und mit einem Schaltschloß, auf das die Auslöser einwirken, dadurch gekennzeichnet, daß zwischen dem Gehäuseoberteil und dem Gehäuseunterteil ein Zwischenstück eingesetzt ist, daß sich die Kontaktstellen in Kammern zwischen dem Zwischenteil und dem Gehäuseunterteil befinden, daß der thermische Auslöser und das feststehende Kontaktstück an einer bandartigen Verlängerung des Joches des elektromagnetischen Auslösers befestigt sind, wobei das Kontaktstück auf der Seite der Verlängerung befestigt ist, die dem thermischen Auslöser entgegengesetzt ist, daß die aus dem thermischen, dem magnetischen Auslöser und dem Kontaktstück bestehende Einheit senkrecht zur Bodenebene in das Zwischenteil eingesetzt ist und daß die bandartige Verlängerung den Kontaktstellenraum von dem Auslöserraum abdichtet.
- Motorschutzschalter nach Anspruch 1, dadurch gekennzeichnet, daß am Zwischenteil ein Absatz vorgesehen ist, auf dem die bandartige Verlängerung des Joches aufliegt.
- Motorschutzschalter nach Anspruch 2, dadurch gekennzeichnet, daß der Absatz wenigstens eine Leiste aufweist, die zu einer Abdichtung dient.
- Motorschutzschalter nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß alle Komponenten des Motorschutzschalters in Richtung zum Gehäuseunterteil einsetzbar sind.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20010109839 EP1251541B1 (de) | 2001-04-21 | 2001-04-21 | Motorschutzschalter |
| DE50111273T DE50111273D1 (de) | 2001-04-21 | 2001-04-21 | Motorschutzschalter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20010109839 EP1251541B1 (de) | 2001-04-21 | 2001-04-21 | Motorschutzschalter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1251541A1 true EP1251541A1 (de) | 2002-10-23 |
| EP1251541B1 EP1251541B1 (de) | 2006-10-18 |
Family
ID=8177207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010109839 Expired - Lifetime EP1251541B1 (de) | 2001-04-21 | 2001-04-21 | Motorschutzschalter |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1251541B1 (de) |
| DE (1) | DE50111273D1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867710A (zh) * | 2011-07-05 | 2013-01-09 | 西门子公司 | 断路器 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501844A1 (de) * | 1991-02-28 | 1992-09-02 | Schneider Electric Sa | Schutzschalter mit einer thermomagnetischer Unterbaugruppe |
| FR2690561A1 (fr) * | 1992-04-25 | 1993-10-29 | Abb Patent Gmbh | Disjoncteur, en particulier disjoncteur de protection de moteur. |
| EP1073083A2 (de) * | 1999-07-29 | 2001-01-31 | ABBPATENT GmbH | Elektromagnetischer Auslöser |
| DE29918974U1 (de) * | 1999-10-29 | 2001-03-08 | Moeller GmbH, 53115 Bonn | Elektrisches Schutzschaltgerät |
-
2001
- 2001-04-21 EP EP20010109839 patent/EP1251541B1/de not_active Expired - Lifetime
- 2001-04-21 DE DE50111273T patent/DE50111273D1/de not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501844A1 (de) * | 1991-02-28 | 1992-09-02 | Schneider Electric Sa | Schutzschalter mit einer thermomagnetischer Unterbaugruppe |
| FR2690561A1 (fr) * | 1992-04-25 | 1993-10-29 | Abb Patent Gmbh | Disjoncteur, en particulier disjoncteur de protection de moteur. |
| EP1073083A2 (de) * | 1999-07-29 | 2001-01-31 | ABBPATENT GmbH | Elektromagnetischer Auslöser |
| DE29918974U1 (de) * | 1999-10-29 | 2001-03-08 | Moeller GmbH, 53115 Bonn | Elektrisches Schutzschaltgerät |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867710A (zh) * | 2011-07-05 | 2013-01-09 | 西门子公司 | 断路器 |
| EP2544206A1 (de) * | 2011-07-05 | 2013-01-09 | Siemens Aktiengesellschaft | Leistungsschalter |
| CN102867710B (zh) * | 2011-07-05 | 2016-08-17 | 西门子公司 | 断路器 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1251541B1 (de) | 2006-10-18 |
| DE50111273D1 (de) | 2006-11-30 |
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