EP0828273A2 - Schalter mit einem Sicherheitselement - Google Patents
Schalter mit einem Sicherheitselement Download PDFInfo
- Publication number
- EP0828273A2 EP0828273A2 EP97109367A EP97109367A EP0828273A2 EP 0828273 A2 EP0828273 A2 EP 0828273A2 EP 97109367 A EP97109367 A EP 97109367A EP 97109367 A EP97109367 A EP 97109367A EP 0828273 A2 EP0828273 A2 EP 0828273A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- switch
- security element
- switch according
- spring
- 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
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/01—Details
- H01H61/0107—Details making use of shape memory materials
- H01H2061/0115—Shape memory alloy [SMA] actuator formed by coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/323—Thermally-sensitive members making use of shape memory materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
Definitions
- the present invention relates to a switch with a at a response temperature switching mechanism to open and closing a connectable to external connections of the switch Circuit, the rear derailleur one with one External connection includes electrically connected movable contact, depending on the temperature of a bimetal part is in contact with a fixed contact that is electrically connected to the other external connection is connected.
- Such switches also called temperature monitors are generally known.
- the spring element can either be made of bimetal or be made of spring steel.
- the spring element is made of bimetal, the result is a structurally very simple design, which, however, the The disadvantage is that the switching properties of the bimetal can change through the self-heating of electricity. This prevents if a separate bimetal part is provided, that works against the force of the spring element.
- Such switches can be used both as openers and Be designed closer, with the bimetallic part above it Response temperature then either of the moving contact pushes away the fixed contact or in contact with it brings.
- a series resistor gives a switch provided with it additionally a current sensitivity by the switch flowing current namely heats the series resistance, whereby the ohmic heat generated in this increases the Temperature of the bimetal part above the response temperature and thus leads to the opening of the switch when the flowing Current has exceeded a certain limit.
- Such switches are e.g. with a consumer to be protected connected in series to prevent this from overheating and / or to protect overcurrent. You will find in particular on Protection of electric motors, transformers, electrical Household appliances etc. use.
- the fuse then opens so that the circuit is irreversibly interrupted by the the electrical consumer to be protected is fed.
- this object is achieved in the aforementioned Switch solved in that the switching mechanism is a safety element which changes its shape to a high temperature shape, when its temperature reaches a transition temperature that is above the response temperature and that the movable Contact depending on the temperature of the security element is in contact with the fixed contact.
- the inventor of the present application has recognized that that the integration of a further temperature dependence in the rear derailleur allows, on the one hand, the disadvantageous To waive fuse protection and yet still reliable exceeding a permissible maximum temperature avoid.
- the use of the security element is the same for switches that open and close at overtemperature applicable. It is particularly advantageous here that only one Component must be mounted on the device to be protected, the Safety function of the fuse is now, so to speak integrated in the new switch.
- This security element can e.g. another bimetal element be that a significantly higher response temperature than that for has the usual switching operations bimetallic part used.
- the response temperature of the bimetal element is clear the bimetallic element experiences above that of the bimetallic part not to the same extent the aging processes to which the bimetal part used for switching is subject to. Constructive is it e.g. possible, the bimetal element mechanically parallel to switch to the bimetallic part so that it has the same function how the bimetallic part exercises, but at a higher level Response temperature, here referred to as transition temperature upper safety temperature.
- the security element in its high temperature form the moving contact in a security situation that he maintains even if the temperature of the security element below the The transformation temperature drops.
- the advantage here is that mechanical self-retention, so to speak is achieved by the security element once open or closed switches remain in this state, even if the outside temperature drops again.
- a locking lug on the switch which the movable contact or a part carrying it engages behind.
- This locking lug can be arranged and designed in this way be that it is only used if that Security element changed into its high temperature form is.
- Another advantage of this construction is that the Security situation can be unlocked manually, so that a mechanically self-holding but resettable temperature monitor is created.
- the security element is made from a shape memory alloy.
- the advantage here is that such shape memory alloys, which are also called memory metal, another switching and Show aging behavior as bimetal parts. Indeed the shape memory alloys show a slower switching behavior as bimetal parts.
- the bimetal part for the fast Switch and the security element made of shape memory alloy for a safe and irreversible shutdown when exceeded a maximum temperature, namely the transition temperature of the Security element used.
- Shape memory alloys have been around for several years known, they are characterized in that they are exceeded the transformation temperature its high temperature form again assume no matter what form they are in the cold state have been brought before. More information on such Shape memory alloys can be found e.g. in the theme volume “Alloys with shape memory", contact and study, volume 259, Expertverlag, Ehningen, 1988, or spectrum of science, 1980, Issue 1, pages 48-57, Donald Schetky: "Alloys, who remember shapes ".
- the shape memory alloy maintains its high temperature shape even when its temperature drops below the transition temperature again.
- the so-called one-way effect is used, which occurs if a shape memory alloy in the martensitic state remains in the area below a critical degree of deformation is deformed.
- the transition temperature which can be between -150 ° C and + 150 ° C the original form, which then also in Cooling is retained.
- the advantage here is that the security element itself for this ensures that the movable contact part permanently in its Security situation remains, so that on the latch mentioned above or similar mechanical locking means can be dispensed with can.
- the security element heated to a temperature above its transition temperature it irreversibly takes its high temperature form, in which it permanently attaches to the movable contact part either with the fixed contact part or out of contact with the fixed Contact part holds, depending on whether the switch is a normally open contact or opener.
- the advantage of this application is especially in the structurally simple structure that the new Switch using a shape memory alloy Has one-way effect as a security element.
- the security element is a compression or tension spring.
- the rear derailleur is one-sided clamped spring element, at the free end of the movable contact is arranged, and if the security element in its high temperature form on the spring element acts.
- the advantage here is that temperature monitors in the usual design provided with an additional safety function can be.
- the spring element is either itself Bimetal or made of spring steel, on which Bimetallic part acts.
- Existing temperature monitors in this Design can be easily redesigned in that additionally a compression or tension spring made of a shape memory alloy is integrated into the rear derailleur. In the simplest If it is possible, it is possible to keep existing constructions and the additional spring on a suitable free space in the area to arrange the rear derailleur.
- the rear derailleur has a spring snap disk includes the movable contact in the middle carries and is supported circumferentially on a housing part, through which it is electrically connected to the external connection, and if the security element on the spring snap washer acts.
- This configuration is a different, common one Design of temperature monitors where the moving contact from a spring snap washer either made of bimetal or Spring steel is worn.
- the spring snap washer is in the Usually inserted freely into a lower part of the housing, which either consists of Metal or has an insert on the bottom, on which the spring snap washer is supported and which is connected to the outside connection to the outside.
- This Lower part of the housing is closed with a cover part either of electrically conductive material or of insulating Material is made. If both the cover part and the lower part of the housing are electrically conductive, they are through an insulating film electrically isolated from each other. If only one of the contact is made in both housing parts usually once on this electrically conductive Housing part and the other through the wall of the other housing part through it. It is also possible to remove both housing parts electrically insulating or electrically conductive material manufacture.
- the spring snap washer is usually made of spring steel manufactured. With a temperature monitor designed as a break contact presses this spring snap disc below the response temperature the moving contact against the fixed contact, the current flowing through the switch via the spring washer to be led. A bimetallic snap disc is over the contact put that above the response temperature against the force of the spring snap washer the moving contact pushes away from the fixed contact, which is why it turns around supported on a housing part.
- Such known temperature monitors can be easily can be provided with the additional safety function by the safety element as an additional part of the rear derailleur is provided and acts on the spring snap washer.
- the security element is a Is disc which is put over the movable contact and at least in its high temperature form on a housing part supports.
- the disk is circumferentially on one Housing part is fixed, preferably circumferentially on a Shoulder between a lower housing part and a cover part is held.
- the advantage here is that the disc is the movements of the Rear derailleur at low temperatures, so as long as there is no mechanical load, such as the transition temperature is not reached. Even on this very simple one This ensures that the bimetal part and Security element subject to different aging processes.
- Fig. 1 generally 10 denotes a switch that there is shown schematically in longitudinal section.
- the desk 10 comprises a housing 11 made of insulating material, in which a temperature-dependent switching mechanism 12 is arranged.
- the switch 10 has two external connections 14, 15, via which he is in series with an electrical consumer to be protected and its supply voltage is switched. Internally the switch 10, two contact rails 17, 18 are arranged, which are electrically connected to the external connections 15 and 14, respectively are.
- the switching mechanism 12 comprises a movable contact 21 which is connected to a free end 22 one at its other end 23 on the Contact rail 17 attached spring element 24 is arranged.
- the spring element 24 a bimetallic part 25 in the position shown in FIG. 1 presses the movable contact 21 against a fixed contact 26, which is attached to the upper contact rail 18.
- the switch 10 In the position shown in Fig. 1, the switch 10 is closed, between the two external connections 14 and 15 via the contact rail 18, the fixed contact 26, the movable Contact 21, the spring element 24 and the contact rail 17 a low-resistance electrically conductive connection.
- the switch 10 also includes a security element 24 in the form a compression spring 28 made of a shape memory alloy.
- the Compression spring 28 is via an insulating piece 29 on the upper Contact rail 18 attached.
- the compression spring 28 In the temperature ranges corresponding to the switch positions 10 corresponds to FIGS. 1 and 2, the compression spring 28 the helical shape shown there. If the However, the temperature of the compression spring is above the response temperature lying transformation temperature increases, so converts their shape into the high temperature shape shown in Fig. 3 31, in which it the spring element 24 in the indicated at 32 Security situation presses.
- the compression spring 28 is made of a shape memory alloy One-way effect manufactured, which means that the compression spring 28th maintains its high temperature shape 31 even when the Temperature back to well below the transition temperature sinks. This means that the compression spring 28 the Switch 10 keeps open permanently (even if the temperature drops again). Of course, this requires that the Force that the compression spring 28 in its high temperature form 31st exerts on the spring element 24 is greater than the closing force, with which the spring element 24, the movable contact 21 on the to press fixed contact 26.
- the necessary setting of the spring constant of Spring element 24 and compression spring 28 can be selected by the Adjust alloys and normal deformation.
- FIG. 4 is a second embodiment of a switch 40 shown, the lower housing part 41 and one of these closing cover part 42 includes.
- a temperature-dependent switching mechanism indicated at 43 43 arranged in the lower part of the housing 41 .
- the switching mechanism 43 includes one freely in the lower housing part 41 inserted spring snap disk 45, which is approximately centric carries movable contact 46, over which a bimetallic snap disc 47 is turned over.
- the spring snap disk 45 supports with its edge 49 on the inside of the lower housing part 41 and presses the movable contact 46 against one inside the fixed part 51 provided for the cover part 42.
- the fixed contact Contact 51 extends through the rivet 52 Cover part 42 and goes outside into a first outer connection 43 over.
- Lower housing part 41 has a second external connection 54 since it is made of electrically conductive material is made while the Cover part 42 consists of electrically insulating material.
- the switching mechanism 43 also has a safety element 55 in Form a disk 56 made of a shape memory alloy.
- the disc 56 is with its center hole 57 over the movable Contact 46 is turned over and is supported with its edge 58 on one Shoulder 59 of the lower housing part 41. Sitting on edge 58 the cover part 42 with a circular ring projection 61.
- the cover part 42 is through a flange 62 of the lower housing part 41 held captive on this. So that the edge 58 the disc 56 still has a certain mobility compared to the Receives shoulder 59 is a circumferential on the ring projection 61 Collar 63 is provided, which is directly on the shoulder 59 lies on.
- the game between ring projection 61 and edge 58 of Disk 56 is not shown in FIG. 4 for reasons of clarity to see.
- the position of the switch 40 in Fig. 4 corresponds to the position of the switch 10 in FIG. 1, the bimetallic snap disk 57 is below their response temperature. Increases the temperature of the bimetallic snap disk 47 to above Response temperature, this presses with its edge 64 from below against the disc 56 and presses against the force of the spring snap disc 45 the movable contact 46 from the fixed Contact 51 gone. The position that the switch 40 then occupies corresponds to that shown in FIG. 2 for the switch 10.
Abstract
Description
- Fig. 1
- ein erstes Ausführungsbeispiel des neuen Schalters, wobei sich das Schaltwerk unterhalb der Ansprechtemperatur befindet;
- Fig. 2
- den Schalter aus Fig. 1, wobei das Schaltwerk eine Temperatur oberhalb der Ansprechtemperatur eingenommen hat;
- Fig. 3
- einen Schalter wie in den Fig. 1 und 2, wobei das Schaltwerk jetzt eine Temperatur oberhalb der Umwandlungstemperatur eingenommen hat; und
- Fig. 4
- ein weiteres Ausführungsbeispiel des neuen Schalters, wobei das Schaltwerk eine Temperatur unterhalb der Ansprechtemperatur aufweist.
Claims (11)
- Schalter mit einem bei einer Ansprechtemperatur schaltenden Schaltwerk (12; 43) zum Öffnen und Schließen eines an Außenanschlüsse (14, 15; 53, 54) des Schalters (10; 40) anschließbaren Schaltkreises, wobei das Schaltwerk (12; 43) einen mit einem Außenanschluß (15; 44) elektrisch verbundenen beweglichen Kontakt (21; 46) umfaßt, der in Abhängigkeit von der Temperatur eines Bimetall-Teiles (25; 47) in Anlage mit einem festen Kontakt (26; 51) ist, der elektrisch mit dem anderen Außenanschluß (14; 53) verbunden ist, dadurch gekennzeichnet, daß das Schaltwerk (12; 43) ein Sicherheitselement (27; 55) umfaßt, das seine Form in eine Hochtemperaturform (31) ändert, wenn seine Temperatur eine Umwandlungstemperatur erreicht, die oberhalb der Ansprechtemperatur liegt, und daß der bewegliche Kontakt (21; 46) in Abhängigkeit von der Temperatur des Sicherheitselementes (27; 55) in Anlage mit dem festen Kontakt (26; 51) ist.
- Schalter nach Anspruch 1, dadurch gekennzeichnet, daß das Sicherheitselement (27; 55) in seiner Hochtemperaturform den beweglichen Kontakt (21; 46) in einer Sicherheitslage (32) hält, die er auch dann beibehält, wenn die Temperatur des Sicherheitselementes (27; 55) wieder unter die Umwandlungstemperatur absinkt.
- Schalter nach Anspruch 2, dadurch gekennzeichnet, daß das Sicherheitselement (27; 55) aus einer Formgedächtnis-Legierung gefertigt ist.
- Schalter nach Anspruch 3, dadurch gekennzeichnet, daß die Formgedächtnis-Legierung ihre Hochtemperaturform (31) auch dann beibehält, wenn ihre Temperatur wieder unter die Umwandlungstemperatur absinkt.
- Schalter nach Anspruch 3 oder Anspruch 4, dadurch gekennzeichnet, daß das Sicherheitselement (27; 55) eine Druckfeder (28) oder eine Zugfeder ist.
- Schalter nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Schaltwerk (12) ein einseitig eingespanntes Federelement (24) umfaßt, an dessen freiem Ende (22) der bewegliche Kontakt (21) angeordnet ist, und daß das Sicherheitselement (27) in seiner Hochtemperaturform (31) auf das Federelement (24) einwirkt.
- Schalter nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Schaltwerk (43) eine Feder-Schnappscheibe (45) umfaßt, die etwa mittig den beweglichen Kontakt (46) trägt und sich umfangsseitig an einem Gehäuseteil (41) abstützt, über das sie mit dem Außenanschluß (54) elektrisch verbunden ist, und daß das Sicherheitselement (55) auf die Feder-Schnappscheibe (45) einwirkt.
- Schalter nach Anspruch 7, dadurch gekennzeichnet, daß der Feder-Schnappscheibe (45) eine Bimetall-Schnappscheibe (47) zugeordnet ist, die über den beweglichen Kontakt (46) gestülpt ist und sich oberhalb der Ansprechtemperatur umfangsseitig an einem Gehäuseteil (41) abstützt.
- Schalter nach Anspruch 7 oder Anspruch 8, dadurch gekennzeichnet, daß das Sicherheitselement (55) eine Scheibe (56) ist, die über den beweglichen Kontakt (46) gestülpt ist und sich zumindest in ihrer Hochtemperaturform an einem Gehäuseteil (61) abstützt.
- Schalter nach Anspruch 9, dadurch gekennzeichnet, daß die Scheibe (56) umfangsseitig an einem Gehäuseteil (61, 59) festgelegt ist.
- Schalter nach Anspruch 10, dadurch gekennzeichnet, daß die Scheibe (56) umfangsseitig auf einer Schulter (59) zwischen einem Gehäuseunterteil (41) und einem Deckelteil (42) gehalten wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19636640A DE19636640C2 (de) | 1996-09-10 | 1996-09-10 | Schalter mit einem Sicherheitselement |
DE19636640 | 1996-09-10 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0828273A2 true EP0828273A2 (de) | 1998-03-11 |
EP0828273A3 EP0828273A3 (de) | 1998-11-18 |
EP0828273B1 EP0828273B1 (de) | 2003-08-27 |
Family
ID=7805091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97109367A Expired - Lifetime EP0828273B1 (de) | 1996-09-10 | 1997-06-10 | Schalter mit einem Sicherheitselement |
Country Status (6)
Country | Link |
---|---|
US (1) | US6091315A (de) |
EP (1) | EP0828273B1 (de) |
AT (1) | ATE248432T1 (de) |
DE (2) | DE19636640C2 (de) |
ES (1) | ES2205088T3 (de) |
PT (1) | PT828273E (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1033732A2 (de) * | 1999-03-02 | 2000-09-06 | Marcel Hofsäss | Schalter mit Verschweisssicherung |
WO2002049059A1 (de) * | 2000-12-15 | 2002-06-20 | Siemens Aktiengesellschaft | Elektromechanisches bauelement |
WO2018024386A1 (de) * | 2016-08-04 | 2018-02-08 | Inter Control Hermann Köhler Elektrik GmbH & Co. KG | Thermische schalteinrichtung |
EP3813090A1 (de) * | 2019-10-21 | 2021-04-28 | Marcel P. Hofsaess | Temperaturabhängiger schalter |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10119290A1 (de) * | 2001-04-20 | 2002-10-24 | Conti Temic Microelectronic | Stellelement, insbesondere als Teil eines Stellantriebs für ein Bilderfassungssystem |
US7071809B2 (en) * | 2002-11-25 | 2006-07-04 | Honeywell International Inc. | Thermal fuse containing bimetallic sensing element |
US7345569B2 (en) * | 2005-05-03 | 2008-03-18 | Tsung-Mou Yu | Temperature sensitive protection device for circuits |
US7345568B2 (en) * | 2005-05-03 | 2008-03-18 | Tsung-Mou Yu | Dual protection device for circuits |
DE102007063650B4 (de) * | 2007-08-28 | 2011-09-22 | Marcel P. HOFSAESS | Temperaturabhängiger Schalter mit Selbsthaltefunktion |
US7737816B1 (en) * | 2008-11-25 | 2010-06-15 | Tsung Mou Yu | Dual protection device for circuit |
US7808361B1 (en) * | 2008-11-25 | 2010-10-05 | Tsung Mou Yu | Dual protection device for circuit |
US7750788B2 (en) * | 2008-12-09 | 2010-07-06 | Tsung Mou Yu | Dual protection device for circuit |
US7791448B2 (en) * | 2008-12-12 | 2010-09-07 | Tsung Mou Yu | Dual protection device for circuit |
US8941461B2 (en) | 2011-02-02 | 2015-01-27 | Tyco Electronics Corporation | Three-function reflowable circuit protection device |
US9455106B2 (en) * | 2011-02-02 | 2016-09-27 | Littelfuse, Inc. | Three-function reflowable circuit protection device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2511214A1 (de) * | 1975-03-14 | 1976-09-23 | Hofsass P | Temperatur-sicherheitseinrichtung fuer elektrische geraete, insbesondere haushaltgeraete |
EP0041823A1 (de) * | 1980-06-06 | 1981-12-16 | THE GENERAL ELECTRIC COMPANY, p.l.c. | Temperaturempfindlicher Schalter |
US4679023A (en) * | 1986-08-14 | 1987-07-07 | Honeywell Inc. | Over-temperature control for a thermostat |
EP0451678A2 (de) * | 1990-04-06 | 1991-10-16 | Hitachi, Ltd. | Überlast-Schutzeinrichtung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4325047A (en) * | 1980-04-09 | 1982-04-13 | Aisin Seiki Kabushiki Kaisha | Temperature responsive switch |
DE3234373A1 (de) * | 1982-09-16 | 1984-05-10 | Peter 7530 Pforzheim Hofsäss | Vorrichtung zum temperatur- und/oder stromabhaengigen schalten einer elektrischen verbindung |
JPH0244232U (de) * | 1988-09-21 | 1990-03-27 | ||
US4990883A (en) * | 1989-06-09 | 1991-02-05 | Raychem Corporation | Actuator which can be locked when exposed to a high temperature |
DE4345350C2 (de) * | 1993-10-30 | 1997-05-22 | Hofsaes Geb Zeitz Ulrika | Temperaturabhängiger Schalter sowie Verfahren für dessen Herstellung |
JP2791383B2 (ja) * | 1994-06-10 | 1998-08-27 | ウチヤ・サーモスタット株式会社 | 二重安全サーモスタット |
-
1996
- 1996-09-10 DE DE19636640A patent/DE19636640C2/de not_active Expired - Fee Related
-
1997
- 1997-06-10 AT AT97109367T patent/ATE248432T1/de not_active IP Right Cessation
- 1997-06-10 PT PT97109367T patent/PT828273E/pt unknown
- 1997-06-10 EP EP97109367A patent/EP0828273B1/de not_active Expired - Lifetime
- 1997-06-10 DE DE59710647T patent/DE59710647D1/de not_active Expired - Lifetime
- 1997-06-10 ES ES97109367T patent/ES2205088T3/es not_active Expired - Lifetime
- 1997-09-05 US US08/924,783 patent/US6091315A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2511214A1 (de) * | 1975-03-14 | 1976-09-23 | Hofsass P | Temperatur-sicherheitseinrichtung fuer elektrische geraete, insbesondere haushaltgeraete |
EP0041823A1 (de) * | 1980-06-06 | 1981-12-16 | THE GENERAL ELECTRIC COMPANY, p.l.c. | Temperaturempfindlicher Schalter |
US4679023A (en) * | 1986-08-14 | 1987-07-07 | Honeywell Inc. | Over-temperature control for a thermostat |
EP0451678A2 (de) * | 1990-04-06 | 1991-10-16 | Hitachi, Ltd. | Überlast-Schutzeinrichtung |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1033732A2 (de) * | 1999-03-02 | 2000-09-06 | Marcel Hofsäss | Schalter mit Verschweisssicherung |
EP1033732A3 (de) * | 1999-03-02 | 2002-06-19 | Marcel Hofsäss | Schalter mit Verschweisssicherung |
WO2002049059A1 (de) * | 2000-12-15 | 2002-06-20 | Siemens Aktiengesellschaft | Elektromechanisches bauelement |
WO2018024386A1 (de) * | 2016-08-04 | 2018-02-08 | Inter Control Hermann Köhler Elektrik GmbH & Co. KG | Thermische schalteinrichtung |
EP3813090A1 (de) * | 2019-10-21 | 2021-04-28 | Marcel P. Hofsaess | Temperaturabhängiger schalter |
US11749479B2 (en) | 2019-10-21 | 2023-09-05 | Marcel P. HOFSAESS | Temperature-dependent switch |
EP4258316A3 (de) * | 2019-10-21 | 2024-01-10 | Marcel P. Hofsaess | Temperaturabhängiger schalter |
US11881369B2 (en) | 2019-10-21 | 2024-01-23 | Marcel P. HOFSAESS | Temperature-dependent switch |
Also Published As
Publication number | Publication date |
---|---|
PT828273E (pt) | 2004-01-30 |
ATE248432T1 (de) | 2003-09-15 |
DE19636640A1 (de) | 1998-03-12 |
DE19636640C2 (de) | 1999-02-18 |
US6091315A (en) | 2000-07-18 |
EP0828273B1 (de) | 2003-08-27 |
ES2205088T3 (es) | 2004-05-01 |
DE59710647D1 (de) | 2003-10-02 |
EP0828273A3 (de) | 1998-11-18 |
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