EP1170767B1 - Thermal switchgear - Google Patents
Thermal switchgear Download PDFInfo
- Publication number
- EP1170767B1 EP1170767B1 EP01115886A EP01115886A EP1170767B1 EP 1170767 B1 EP1170767 B1 EP 1170767B1 EP 01115886 A EP01115886 A EP 01115886A EP 01115886 A EP01115886 A EP 01115886A EP 1170767 B1 EP1170767 B1 EP 1170767B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fusible
- switchgear according
- fusible mass
- shield
- transfer member
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/002—Thermally-actuated switches combined with protective means
Definitions
- the invention / innovation relates to a thermally controlled, electrical Switching device, in particular a temperature fuse or a Temperature limiter, with the other features of the preamble of Claim 1.
- From DE 3735334 C2 is a thermally controlled, electrical switching device known, in which on a support element one from a moving contact and a fixed contact formed switching device is arranged. Besides that is provided a fusible element, which before its response due to a Passing a release temperature supports a transmission element. At the Exceeding the trip temperature will be from the end of the Transmission element, the material of the fusible element from its cup-like Repressed recording.
- the solder that emerges can be thermal Switching device further electrical elements of the switching device or influence further electrical equipment parts, in particular by the Emerging solder formed solder balls that cause thermal disturbances Can lead switching device and its intended safety purpose.
- a collar is provided, which increases the diameter of the transmission element.
- the invention / innovation is the object of a thermal Switching device with the features of the preamble of claim 1 such educate that the risk of electrical noise after a response of the reduced thermal switching device and in particular leaked Fusible solder is spatially controlled.
- melt-mass shielding on the Melting element facing away from the end of the transmission element is arranged so that the transfer element has the overall shape of a mushroom, the its lower end has a stamped part and at its upper end with the screen is provided.
- the melt mass shielding advantageously has about twice as much Diameter of the plunger-like part of the plunging into the solder Transmission element.
- the outer edge of the melt mass shield is in Pulled down direction of receiving the fusible link, so that within the Schirmes a cavity is formed, which is particularly advantageous for receiving can serve molten solder.
- the volume should be below the melt mass shield located area and the volume of the displaced fusible link be coordinated.
- the volume under the screen base should be be greater than the volume of the displaced fusible solder, so that on the Fusible solder drooping screen portion does not push the solder radially outward and thus nullifying the beneficial effect of the umbrella.
- the transmission element and the advantageously advantageously arranged in one piece Total melt shield are made of an electrical non-conductor made, so that advantageously an extension of the air and Creepage distances is achieved and an electrical insulation between Movement contact and fusing solder is ensured.
- the projection is advantageously cone-shaped.
- the Melt-shielding may also be slidable on the stamp-like part be held the transmission element, so that the umbrella-like Can transfer element down to the emerging fusible link and this encapsulates.
- sunken transmission element should be the outer Edge of the melt mass shield radially over the displaced melt solder mass stand out or the Schmelzlotmasse at least partially below the be included umbrella-like widening.
- the undercut is below the melt mass shield shaped such that the stamp-like portion upflowing liquid Melt after entering the undercut in its flow direction is diverted.
- a deflection behavior is particularly special important, if in older switching devices, the switch contacts to each other stick or are easily welded together and after loosening the Contacts of the stamp or the transmission element abruptly in the Melted melted and this very fast drives up.
- molten mass wegspritzt radially outward and electrically sensitive environmental areas negatively affected.
- thermally controlled, electrical Switching device 1 has a switching contact device 2, which by a Fixed contact 3 and a moving contact 4 is formed.
- Fixed contact 3 and Movement contact 4 are on a columnar fastening device. 5 arranged.
- Pickup 6 is a fuse element 7 having a melting element 8 arranged, which supports a first end of a transmission element 9, which with his other end 10, the moving contact 4 in the closed position with the Fixed contact 3 stops.
- the switching device 1 also includes a bimetallic element 11, which with his Fixing 12 also arranged on the columnar fastening device 5 is and with its pivot end 13, a transmission pin 14 is actuated. This acted with its the bimetallic element 11 facing away from the end 15 a Switching spring 16, the other cooperating with the fixed contact 3 Movement contact 17 carries.
- the fixed contact 3 acts as a double-sided Double contact.
- the switching spring 16 acts with a rotatable Adjustment device 18 for setting the switching point together.
- Transmission element 9 At the end facing away from the melting element 8 10th Transmission element 9 is a radially projecting, flat Schmelzmasseschnetung 19 arranged, the forth of their dimensions about twice the diameter of the dipping into the molten mass, stamp-like portion 20 of the transmission element 9 has.
- the outer edge 21 of Schmelzmasseschnetung 19 mushroom-like in the direction of the melting element. 8 pulled down, so that within the melt mass shield 19 a ring-like undercut 22 results in the in the melt 7 immersed, stamp-like portion 20 of the transmission element 9 surrounds and is suitable for partial absorption of leaked enamel 7.
- the transmission element 9 and the integrally arranged thereon Meltdown shield 19 are formed of a non-conductor.
- the transmission element 9 and the melt mass shield 19 arranged thereon and the cone-like one Projection 25 is formed as a rotationally symmetrical components. It is also possible, other forms, eg. As polygonal, rectangular or square Provide cross-sectional shapes, if the structural conditions of the Switching device 1 make this seem appropriate.
Landscapes
- Fuses (AREA)
- Thermally Actuated Switches (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Laminated Bodies (AREA)
- Safety Valves (AREA)
- Cookers (AREA)
- Push-Button Switches (AREA)
- Electronic Switches (AREA)
- Control Of Eletrric Generators (AREA)
- Vehicle Body Suspensions (AREA)
- Vending Machines For Individual Products (AREA)
Abstract
Description
Die Erfindung/Neuerung betrifft eine thermisch gesteuerte, elektrische Schaltvorrichtung, insbesondere eine Temperatursicherung oder einen Temperaturbegrenzer, mit den weiteren Merkmalen des Oberbegriffes des Anspruchs 1.The invention / innovation relates to a thermally controlled, electrical Switching device, in particular a temperature fuse or a Temperature limiter, with the other features of the preamble of Claim 1.
Aus DE 3735334 C 2 ist eine thermisch gesteuerte, elektrische Schaltvorrichtung bekannt, bei welcher an einem Trägerelement eine aus einem Bewegungskontakt und einem Festkontakt gebildete Schalteinrichtung angeordnet ist. Außerdem ist ein Schmelzelement vorgesehen, das vor seinem Ansprechen infolge eines Überschreitens einer Auslösetemperatur ein Übertragungselement abstützt. Beim Überschreiten der Auslösetemperatur wird von dem Ende des Übertragungselementes das Material des Schmelzelementes aus seiner napfartigen Aufnahme verdrängt.From DE 3735334 C2 is a thermally controlled, electrical switching device known, in which on a support element one from a moving contact and a fixed contact formed switching device is arranged. Besides that is provided a fusible element, which before its response due to a Passing a release temperature supports a transmission element. At the Exceeding the trip temperature will be from the end of the Transmission element, the material of the fusible element from its cup-like Repressed recording.
Das dabei austretende Lot kann dabei je nach Einbaulage der thermischen Schaltvorrichtung weitere elektrische Elemente der Schaltvorrichtung oder weiterer elektrischer Apparateteile beeinflussen, insbesondere werden durch das austretende Lot Lotperlen gebildet, die zu Störungen der thermischen Schaltvorrichtung und ihres angestrebten Sicherheitszweckes führen können.Depending on the installation position, the solder that emerges can be thermal Switching device further electrical elements of the switching device or influence further electrical equipment parts, in particular by the Emerging solder formed solder balls that cause thermal disturbances Can lead switching device and its intended safety purpose.
Um vor der Endmontage der Vorrichtung das Übertragungselement in seiner Sollage zu sichern und die Montage zu erleichtern, ist ein Ringbund vorgesehen, der den Durchmesser des Übertragungselementes vergrößert.To before the final assembly of the device, the transmission element in his Sollage secure and facilitate the assembly, a collar is provided, which increases the diameter of the transmission element.
Der Erfindung/Neuerung liegt die Aufgabe zugrunde, eine thermische Schaltvorrichtung mit den Merkmalen des Oberbegriffes des Anspruches 1 derart weiterzubilden, daß die Gefahr elektrischer Störungen nach einem Ansprechen der thermischen Schaltvorrichtung verringert und insbesondere ausgetretenes Schmelzlot räumlich kontrolliert wird.The invention / innovation is the object of a thermal Switching device with the features of the preamble of claim 1 such educate that the risk of electrical noise after a response of the reduced thermal switching device and in particular leaked Fusible solder is spatially controlled.
Diese Aufgabe wird durch das Kennzeichen des Anspruches 1 gelöst, vorteilhafte Weiterbildungen der Erfindung/Neuerung ergeben sich aus den Unteransprüchen.This object is achieved by the characterizing part of claim 1, advantageous Further developments of the invention / innovation emerge from the dependent claims.
Es hat sich herausgestellt, daß eine als Schmelzmasseabschirmung ausgebildete Verbreiterung des Übertragungselementes in vorteilhafter Weise dazu führt, daß ausgetretenes Schmelzlot gleichsam unter der schirmartigen Verbreiterung aufgenommen und gehalten werden kann, da es sich aufgrund der Oberflächenspannung von geschmolzenem Lot ringartig oder in Form von einzelnen Lotperlen um das stempelartige Ende des Übertragungselementes herumlegt und so unter dem vorgesehenen Schirm bleibt. Durch die Schmelzmasseabschirmung werden außerdem die vorgeschriebenen elektrischen Luft- und Kriechstrecken eingehalten, auch wenn sich durch das ausgetretene Schmelzlot, insbesondere die genannten Schmelzlotperlen, der Abstand zwischen elektrischen Teilen, insbesondere zwischen dem mit Masse verbundenen Trägerelement des Schmelzloteinsatzes und dem Bewegungskontakt verringert. Diese Abstandsverkleinerung wird durch die Schmelzmasseabschirmung in vorteilhafter Weise kompensiert.It has been found that a trained as Schmelzmasseschschirmung Broadening of the transmission element advantageously leads to that leaked fusible solder, as it were under the umbrella-like widening can be taken and kept, as it is due to the Surface tension of molten solder ring-like or in the form of individual solder balls around the punch-like end of the transmission element puts it around and stays under the screen. By the Meltdown shielding also becomes the prescribed electrical Air and creepage distances are respected, even if by the leaked Fusible solder, in particular the said molten solder balls, the distance between electrical parts, in particular between the ground connected Carrier element of the melting solder insert and the moving contact reduced. This distance reduction is achieved by the melt shield in compensated advantageously.
Besonders vorteilhaft ist es, wenn die Schmelzmasseabschirmung an dem dem Schmelzelement abgewandten Ende des Übertragungselementes angeordnet ist, so daß das Übertragungselement insgesamt die Form eines Pilzes aufweist, der an seinem unteren Ende ein stempelartiges Teil hat und an seinem oberen Ende mit dem Schirm versehen ist.It is particularly advantageous if the melt-mass shielding on the Melting element facing away from the end of the transmission element is arranged so that the transfer element has the overall shape of a mushroom, the its lower end has a stamped part and at its upper end with the screen is provided.
Die Schmelzmasseabschirmung hat in vorteilhafter Weise etwa den doppelten Durchmesser des in das Lot eintauchenden stempelartigen Teils des Übertragungselementes. Der äußere Rand der Schmelzmasseabschirmung ist in Richtung der Aufnahme des Schmelzlots heruntergezogen, so daß innerhalb des Schirmes ein Hohlraum gebildet ist, der besonders vorteilhaft zur Aufnahme von geschmolzenem Lot dienen kann.The melt mass shielding advantageously has about twice as much Diameter of the plunger-like part of the plunging into the solder Transmission element. The outer edge of the melt mass shield is in Pulled down direction of receiving the fusible link, so that within the Schirmes a cavity is formed, which is particularly advantageous for receiving can serve molten solder.
Insgesamt sollten das Volumen des unter der Schmelzmasseabschirmung befindlichen Bereiches und das Volumen des verdrängten Schmelzlotes aufeinander abgestimmt sein. Das Volumen unter der Schirmunterseite sollte größer sein als das Volumen des verdrängten Schmelzlotes, damit der auf das Schmelzlot herabsinkende Schirmteil das Lot nicht radial nach außen drückt und somit den vorteilhaften Effekt des Schirmes wieder zunichte macht.Overall, the volume should be below the melt mass shield located area and the volume of the displaced fusible link be coordinated. The volume under the screen base should be be greater than the volume of the displaced fusible solder, so that on the Fusible solder drooping screen portion does not push the solder radially outward and thus nullifying the beneficial effect of the umbrella.
Das Übertragungselement und die daran vorteilhafterweise einstückig angeordnete Schmelzmasseabschirmung sind insgesamt aus einem elektrischen Nichtleiter hergestellt, so daß in vorteilhafter Weise eine Verlängerung der Luft- und Kriechstrecken erreicht wird und eine elektrische Isolierung zwischen Bewegungskontakt und Schmelzlot sichergestellt ist.The transmission element and the advantageously advantageously arranged in one piece Total melt shield are made of an electrical non-conductor made, so that advantageously an extension of the air and Creepage distances is achieved and an electrical insulation between Movement contact and fusing solder is ensured.
Auf der Oberseite der Schmelzmasseabschirmung ist ein den Bewegungskontakt abstützender Vorsprung angeordnet, der in eine Ausnehmung des freien Endes des Bewegungskontaktes eingreifen kann. Das Einsetzen des Übertragungselementes in den vorbereiteten Schalter kann dann auf einfache Weise dadurch geschehen, daß das untere Ende in den Napf eingesetzt wird, der den Schmelzloteinsatz beinhaltet und das Bewegungskontakt-Federelement über den Vorsprung geschnappt wird. Dies ist ein relativ einfacher Montagevorgang, der auch automatisiert durchgeführt werden kann.On top of the melt mass shield is a moving contact abstützender projection disposed in a recess of the free end of the Motion contact can intervene. The insertion of the transmission element in the prepared switch can then easily done by that the lower end is inserted into the bowl, which is the Schmelzloteinsatz includes and the moving contact spring element on the projection is caught. This is a relatively simple assembly process, too can be carried out automatically.
Der Vorsprung ist vorteilhafterweise kegelartig geformt. Die Schmelzmasseabschirmung kann auch verschiebbar auf dem stempelartigen Teil des Übertragungselementes gehalten sein, so daß sich das schirmartige Übertragungselement auf das austretende Schmelzlot herabsenken kann und dieses einkapselt. Bei eingesunkenem Übertragungselement sollte der äußere Rand der Schmelzmasseabschirmung radial über die verdrängte Schmelzlotmasse hinausstehen bzw. die Schmelzlotmasse zumindest teilweise unter der schirmartigen Verbreiterung eingeschlossen sein.The projection is advantageously cone-shaped. The Melt-shielding may also be slidable on the stamp-like part be held the transmission element, so that the umbrella-like Can transfer element down to the emerging fusible link and this encapsulates. When sunken transmission element should be the outer Edge of the melt mass shield radially over the displaced melt solder mass stand out or the Schmelzlotmasse at least partially below the be included umbrella-like widening.
Vorteilhafterweise ist die Hinterschneidung unter der Schmelzmasseabschirmung derart geformt, daß am stempelartigen Abschnitt hochlaufende flüssige Schmelzmasse nach dem Eintreten in die Hinterschneidung in ihrer Fließrichtung umgelenkt wird. Ein derartiges Umlenkverhalten ist insbesondere dann besonders wichtig, wenn bei älteren Schaltvorrichtungen die Schaltkontakte aneinander kleben oder miteinander leicht verschweißt sind und nach einem Lösen der Kontakte der Stempel bzw. das Übertragungselement schlagartig in die Schmelzmasse einsinkt und diese sehr schnell nach oben treibt. Durch die Umlenkung wird vermieden, daß Schmelzmasse radial nach außen wegspritzt und elektrisch sensitive Umgebungsbereiche negativ beeinflußt.Advantageously, the undercut is below the melt mass shield shaped such that the stamp-like portion upflowing liquid Melt after entering the undercut in its flow direction is diverted. Such a deflection behavior is particularly special important, if in older switching devices, the switch contacts to each other stick or are easily welded together and after loosening the Contacts of the stamp or the transmission element abruptly in the Melted melted and this very fast drives up. By the Deflection is avoided that molten mass wegspritzt radially outward and electrically sensitive environmental areas negatively affected.
Die Erfindung/Neuerung ist anhand eines vorteilhaften Ausführungsbeispiels in den Zeichnungsfiguren dargestellt. Diese zeigen:
- Fig. 1
- eine Seitenansicht einer thermischen Schaltvorrichtung mit geschlossener Kontaktstrecke,
- Fig. 2
- eine Teilfigur gemäß Fig. 1, teilweise im Schnitt, vor dem Ansprechen der Schmelzmasse,
- Fig.3
- eine Teilfigur gemäß Fig. 2 nach dem Ansprechen der Schmelzmasse.
- Fig. 1
- a side view of a thermal switching device with closed contact path,
- Fig. 2
- 1 in part, in section, before the response of the molten mass,
- Figure 3
- a partial figure of FIG. 2 after the response of the melt.
Die in Zeichnungsfigur 1 dargestellte, thermisch gesteuerte, elektrische
Schaltvorrichtung 1 weist eine Schaltkontakteinrichtung 2 auf, die durch einen
Festkontakt 3 und einen Bewegungskontakt 4 gebildet wird. Festkontakt 3 und
Bewegungskontakt 4 sind an einer säulenartigen Befestigungseinrichtung 5
angeordnet. In einer ebenfalls an der Befestigungseinrichtung 5 befestigten
Aufnahme 6 ist ein eine Schmelzmasse 7 aufweisendes Schmelzelement 8
angeordnet, das ein erstes Ende eines Übertragungselementes 9 abstützt, das mit
seinem anderen Ende 10 den Bewegungskontakt 4 in Schließstellung mit dem
Festkontakt 3 hält.The illustrated in Figure 1, thermally controlled, electrical
Switching device 1 has a
Die Schaltvorrichtung 1 umfaßt außerdem ein Bimetallelement 11, das mit seinem
Festende 12 ebenfalls an der säulenartigen Befestigungseinrichtung 5 angeordnet
ist und mit seinem Schwenkende 13 einen Übertragungsstift 14 betätigt. Dieser
beaufschlagt mit seinem dem Bimetallelement 11 abgewandten Ende 15 eine
Schaltfeder 16, die einen weiteren, mit dem Festkontakt 3 zusammenwirkenden
Bewegungskontakt 17 trägt. Der Festkontakt 3 wirkt dabei als beidseitiger
Doppelkontakt.The switching device 1 also includes a
In ihrem Mittelbereich wirkt die Schaltfeder 16 mit einer drehbaren
Einstellvorrichtung 18 zur Einstellung des Schaltpunktes zusammen.In its central region, the switching
An dem dem Schmelzelement 8 abgewandten Ende 10 des
Übertragungselementes 9 ist eine radial abstehende, flächige
Schmelzmasseabschirmung 19 angeordnet, die von ihrer Dimensionierung her
etwa den doppelten Durchmesser des in die Schmelzmasse eintauchenden,
stempelartigen Abschnitts 20 des Übertragungselementes 9 hat. Wie insbesondere
in den Zeichnungsfiguren 2 und 3 zu sehen ist, ist der äußere Rand 21 der
Schmelzmasseabschirmung 19 pilzartig in Richtung des Schmelzelementes 8
heruntergezogen, so daß sich innerhalb der Schmelzmasseabschirmung 19 eine
ringartige Hinterschneidung 22 ergibt, die den in die Schmelzmasse 7
eintauchenden, stempelartigen Abschnitt 20 des Übertragungselementes 9 umgibt
und zur teilweisen Aufnahme von ausgetretener Schmelzmasse 7 geeignet ist. Bei
eingesunkenem Übertragungselement 9 gemäß der zeichnerischen Darstellung in
Fig. 3 ist das Volumen des zwischen der Unterseite der
Schmelzmasseabschirmung 19 und der Oberseite eines die Aufnahme 6 für die
Schmelzmasse 7 beinhaltenden Trägers 23 befindlichen Raumbereiches größer als
das Volumen der verdrängten Schmelzmasse 7, die sich nach Art von Lotperlen
oder ringartig um den in die Aufnahme 6 eintauchenden Abschnitt 20 des
Übertragungselementes 9 herumlegt.At the end facing away from the melting element 8
Das Übertragungselement 9 und die einstückig daran angeordnete
Schmelzmasseabschirmung 19 sind aus einem Nichtleiter ausgebildet. Auf der
dem Schmelzelement 8 abgewandten Oberseite 24 der Schmelzmasseabschirmung
19 ist ein den Bewegungskontakt 4 abstützender, kegelartiger Vorsprung 25
angeformt, der in eine Ausnehmung des Bewegungskontaktes 4 eingreift, so daß
das Übertragungselement 9 durch die Federkraft des Bewegungskontaktes 4
zwischen dem Schmelzelement 8 und dem Bewegungskontakt 4 eingespannt ist.The
In Zeichnungsfigur 3 ist deutlich zu sehen, daß bei eingesunkenem
Übertragungselement 9 der äußere Rand 21 der Schmelzmasseabschirmung 19
radial über die verdrängte Schmelzmasse 7 hinaussteht, wodurch bei
eingesunkenem Übertragungselement 9 die verdrängte Schmelzmasse 7
zumindest teilweise unter der Schmelzmasseabschirmung 19 eingeschlossen ist.In drawing Figure 3 is clearly seen that when
Bei dem dargestellten Ausfilhrungsbeipiel sind das Übertragungselement 9 sowie
die daran angeordnete Schmelzmasseabschirmung 19 und der kegelartige
Vorsprung 25 als rotationssymmetrische Bauteile ausgebildet. Es ist aber auch
möglich, andere Formen, z. B. polygonale, rechteckige oder quadratische
Querschnittsformen vorzusehen, falls die baulichen Gegebenheiten der
Schaltvorrichtung 1 dies als zweckdienlich erscheinen lassen. In the Ausfilhrungsbeipiel shown, the
- 11
- Schaltvorrichtungswitching device
- 22
- SchaltkontakteinrichtungSwitching contact device
- 33
- Festkontaktfixed contact
- 44
- Bewegungskontaktmoving contact
- 55
- Befestigungsrichtungmounting direction
- 66
- Aufnahmeadmission
- 77
- Schmelzmassefrit
- 88th
- Schmelzelementfuse
- 99
- Übertragungselementtransmission element
- 1010
- EndeThe End
- 1111
- Bimetallelementbimetallic
- 1212
- Festendefixed end
- 1313
- Schwenkendepivoting
- 1414
- Übertragungsstifttransmission pin
- 1515
- EndeThe End
- 1616
- Schaltfederswitching spring
- 1717
- Bewegungskontaktmoving contact
- 1818
- Einstellvorrichtungadjustment
- 1919
- SchmelzmasseabschirmungFusible mass shield
- 2020
- stempelartiger Abschnittstamp-like section
- 2121
- äußerer Randouter edge
- 2222
- Hinterschneidungundercut
- 2323
- Oberseitetop
- 2424
- Vorsprunghead Start
Claims (13)
- Thermally controlled electrical switchgear (1), especially a temperature fuse or thermal cut-out, having a switching contact device (2) formed from a fixed contact (3) and a moving contact (4), and having a fusible member (8) comprising a fusible mass (7), the fusible mass (7), before thermal melting as a result of a triggering temperature being exceeded, supporting a transfer member (9) and, when the triggering temperature is exceeded, being displaced from its seat (6) by that end of the transfer member (9) which acts on it, characterised in that a radially projecting flat fusible mass shield (19) is arranged on the transfer member (9).
- Switchgear according to claim 1, characterised in that the fusible mass shield (19) is arranged on that end (10) of the transfer member (9) which is remote from the fusible member (8).
- Switchgear according to claim 1 or 2, characterised in that the fusible mass shield (19) has approximately double the diameter of the plunger-like portion (20) of the transfer member (9), which portion is immersed in the fusible mass (7).
- Switchgear according to any one of the preceding claims, characterised in that the outer edge (21) of the fusible mass shield (19) extends downwards in the direction towards the fusible member (8) in order to form an undercut (22).
- Switchgear according to any one of the preceding claims, characterised in that, when the transfer member (9) has become immersed, the volume of the spatial region located between the lower side of the fusible mass shield (19) and the upper side of a carrier (23) containing the seat (6) is larger than the volume of the displaced fusible mass (7).
- Switchgear according to any one of the preceding claims, characterised in that the transfer member (9) and the fusible mass shield (19) arranged in a unitary manner thereon are formed from an electrical non-conductor.
- Switchgear according to any one of the preceding claims, characterised in that a projection (25) supporting the moving contact (4) is arranged on the upper side (24) of the fusible mass shield (19).
- Switchgear according to claim 7, characterised in that the projection (25) has a cone-like shape.
- Switchgear according to claim 1, characterised in that the fusible mass shield (19) is held displaceably on the plunger-like portion (20) of the transfer member (9).
- Switchgear according to any one of the preceding claims, characterised in that, when the transfer member (9) has become immersed, the outer edge (21) of the fusible mass shield (19) projects radially over the displaced fusible mass (7).
- Switchgear according to any one of the preceding claims, characterised in that, when the transfer member (9) has become immersed, the displaced fusible mass (7) is enclosed at least partially under the fusible mass shield (19).
- Switchgear according to any one of claims 4 to 11, characterised in that the undercut (22) under the fusible mass shield (19) is shaped in such a manner that fluid fusible mass (7) running up the plunger-like portion (20) is reversed in its direction of flow after entering the undercut (22).
- Switchgear according to claim 12, characterised in that the undercut (22) has a rounded cross-section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10033354A DE10033354C1 (en) | 2000-07-08 | 2000-07-08 | Thermally controlled electrical switching device |
| DE10033354 | 2000-07-08 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1170767A2 EP1170767A2 (en) | 2002-01-09 |
| EP1170767A3 EP1170767A3 (en) | 2002-03-27 |
| EP1170767B1 true EP1170767B1 (en) | 2004-02-04 |
Family
ID=7648326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01115886A Expired - Lifetime EP1170767B1 (en) | 2000-07-08 | 2001-06-29 | Thermal switchgear |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6639504B2 (en) |
| EP (1) | EP1170767B1 (en) |
| AT (1) | ATE259094T1 (en) |
| DE (2) | DE10033354C1 (en) |
| ES (1) | ES2215819T3 (en) |
| HK (1) | HK1045401B (en) |
| PT (1) | PT1170767E (en) |
| TR (1) | TR200400522T4 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITGE20030079A1 (en) * | 2003-10-10 | 2005-04-11 | Cobra Srl | THERMOSTAT PROVIDED WITH MEANS OF REGULATION AND LIMITATION |
| US7741947B2 (en) * | 2007-12-20 | 2010-06-22 | Art Tateishi | Dual contact bimetallic thermostat |
| KR100982038B1 (en) * | 2009-10-30 | 2010-09-14 | 한백디스템(주) | Over load protector |
| CN104821256A (en) * | 2015-04-20 | 2015-08-05 | 厦门升明电子有限公司 | Thermostat having safety function |
| CN108335945B (en) * | 2018-04-12 | 2019-12-31 | 甘跃斌 | Flashing type double-temperature linkage temperature controller |
| CN108400032A (en) * | 2018-04-23 | 2018-08-14 | 佛山市高明欧电子制造有限公司 | A kind of travel switch of high security lever construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE224443C (en) | ||||
| US3629766A (en) * | 1970-11-10 | 1971-12-21 | Gen Motors Corp | Fusible link circuit protective device |
| US3820050A (en) * | 1973-07-13 | 1974-06-25 | Robertshaw Controls Co | Thermal switch |
| BE818448A (en) * | 1973-08-04 | 1975-02-03 | COMBINED TEMPERATURE REGULATOR | |
| DE2546274A1 (en) * | 1975-10-16 | 1977-04-21 | Inter Control Koehler Hermann | TEMPERATURE CONTROLLER-SAFETY THERMOSTAT COMBINATION |
| US4090166A (en) * | 1976-09-10 | 1978-05-16 | B/K Patent Development, Inc. | Switch structure and calibration technique |
| IT1110797B (en) * | 1979-01-29 | 1986-01-06 | Eaton Spa | THERMOSTAT, PARTICULARLY BIMETAL, WITH SAFETY SWITCH |
| DE2942478A1 (en) * | 1979-10-20 | 1981-04-30 | Inter Control Hermann Köhler Elektrik GmbH & Co KG, 8500 Nürnberg | TEMPERATURE FUSE SWITCH |
| US4411061A (en) * | 1981-06-26 | 1983-10-25 | Emerson Electric Co. | Method of making a thermal switch having a lead interlocked thereto by a skived part of the lead |
| US4472705A (en) * | 1983-01-03 | 1984-09-18 | Elmwood Sensors, Inc. | Thermostatic switch with thermal override |
| DD224443B1 (en) * | 1984-06-13 | 1987-10-08 | Suhl Elektrogeraete Veb K | SEPARATOR OF ELECTRIC CIRCUITS |
| DE3735334A1 (en) * | 1987-10-19 | 1989-04-27 | Thermostat & Schaltgeraetebau | THERMALLY CONTROLLED ELECTRICAL SWITCHING DEVICE |
| JP2646237B2 (en) * | 1988-05-02 | 1997-08-27 | 日本テキサス・インスツルメンツ株式会社 | Switch device |
| DE4001790C1 (en) * | 1990-01-23 | 1991-05-02 | Inter Control Hermann Koehler Elektrik Gmbh & Co Kg, 8500 Nuernberg, De | |
| AT394637B (en) | 1990-10-18 | 1992-05-25 | Electrovac | LOTPILLE |
| JPH0562575A (en) * | 1991-04-03 | 1993-03-12 | Ubukata Masaya | Thermal responsive switch |
| EP0750787B1 (en) * | 1994-03-18 | 1997-10-22 | INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG | Double temperature fuse |
| FR2737605B1 (en) * | 1995-08-03 | 1997-10-03 | Europ Agence Spatiale | THERMALLY ACTIVE SHORT CIRCUIT SWITCH FOR A BATTERY CELL |
| US5825278A (en) * | 1996-09-27 | 1998-10-20 | Therm-O-Disc, Incorporated | Thermal pellet cutoff switch |
-
2000
- 2000-07-08 DE DE10033354A patent/DE10033354C1/en not_active Expired - Fee Related
-
2001
- 2001-06-29 DE DE50101424T patent/DE50101424D1/en not_active Expired - Lifetime
- 2001-06-29 TR TR2004/00522T patent/TR200400522T4/en unknown
- 2001-06-29 PT PT01115886T patent/PT1170767E/en unknown
- 2001-06-29 ES ES01115886T patent/ES2215819T3/en not_active Expired - Lifetime
- 2001-06-29 EP EP01115886A patent/EP1170767B1/en not_active Expired - Lifetime
- 2001-06-29 AT AT01115886T patent/ATE259094T1/en not_active IP Right Cessation
- 2001-07-06 US US09/900,671 patent/US6639504B2/en not_active Expired - Lifetime
-
2002
- 2002-06-28 HK HK02104894.7A patent/HK1045401B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US20020075122A1 (en) | 2002-06-20 |
| EP1170767A2 (en) | 2002-01-09 |
| DE10033354C1 (en) | 2002-01-24 |
| DE50101424D1 (en) | 2004-03-11 |
| EP1170767A3 (en) | 2002-03-27 |
| ATE259094T1 (en) | 2004-02-15 |
| HK1045401A1 (en) | 2002-11-22 |
| US6639504B2 (en) | 2003-10-28 |
| PT1170767E (en) | 2004-06-30 |
| HK1045401B (en) | 2004-06-25 |
| TR200400522T4 (en) | 2004-04-21 |
| ES2215819T3 (en) | 2004-10-16 |
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