EP0756301B1 - Temperaturwächter - Google Patents
Temperaturwächter Download PDFInfo
- Publication number
- EP0756301B1 EP0756301B1 EP96106744A EP96106744A EP0756301B1 EP 0756301 B1 EP0756301 B1 EP 0756301B1 EP 96106744 A EP96106744 A EP 96106744A EP 96106744 A EP96106744 A EP 96106744A EP 0756301 B1 EP0756301 B1 EP 0756301B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature controller
- bimetallic
- switching
- heating resistors
- switching device
- 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
- H01H81/00—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting
- H01H81/02—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting electrothermally operated
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal means
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- 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
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
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- 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
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- 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 present invention relates to a temperature monitor one to protect a consumer in the event of overtemperature Bimetal rear derailleur, one assigned to the bimetal rear derailleur first heating resistor, which is activated when the bimetal switchgear is actuated works in the sense of a self-holding function, and one the second heating resistor assigned to the bimetal switchgear, the too high current flow through the temperature monitor has the effect that the bimetal switching mechanism switches, so the consumer to protect against overcurrent, the bimetal switchgear one with a first connection of the temperature monitor connected first fixed switching contact and a movable Switch contact includes that of a through a bimetallic snap disk movable spring washer is carried and with this is in a conductive connection.
- Such a temperature monitor is from DE-OS-41 42 716 known.
- the known temperature monitor includes an overtemperature or overcurrent opening bimetal switchgear to which the first Heating resistor in parallel and with which the second heating resistor is connected in series.
- a temperature monitor known from DE-OS-43 36 564 comprises one with conductive and insulating coatings Ceramic carrier plate, on which an encapsulated bimetal rear derailleur is arranged, next to which sits a PTC thermistor module is electrically connected in parallel to the bimetal switchgear and acts as the first heating resistor. On the ceramic carrier plate a thick film resistor is further arranged, which under the Bimetal rear derailleur leads and connected in series with this is. However, the series resistor is not used to protect against Overcurrent, but for setting the switching point.
- the task of these known temperature monitors is to control the current flow interrupted by the electrical consumer if this Consumer has too high a temperature, or possibly also then when the current through the consumer is too high values having.
- the well-known temperature monitor connected in series to the consumer, so that the temperature monitor flowed through by the current flowing through the consumer the bimetal rear derailleur at temperatures below the response temperature and / or for currents below of the response current is closed.
- the operating current of the consumer flows in series switched second heating resistor of a few ohms as well the closed contacts of the bimetallic rear derailleur that the bridges the first heating resistor.
- temperature monitor known from DE-OS-43 36 564 functionally meets many requirements, it is disadvantageous that it has a relatively bulky and large design, the is due in particular to the ceramic carrier plate. For reasons of accommodation and heat capacity Such temperature monitors are usually very small executed, for example. They have a diameter of 10 mm and a height of 5 mm, which places extreme demands on manufacturing accuracy provides and at the same time the need easier and based on reliable construction.
- the two heating resistors are with the bimetal rear derailleur at rest either to each other connected in series or parallel to each other so that the heat output both resistors when setting the switching behavior must be taken into account.
- both resistors have to be re-dimensioned, so that two new components are required for production. This has the usual disadvantages when it comes to stockpiling etc.
- From FR-A-899 106 is a device for protecting electrical Circuits known to be too high amperages Has interrupter that interrupted the circuit as long holds until an applied voltage source is switched off.
- the breaker is as one Live bimetallic tongue formed, its switching position is temperature dependent. If the current exceeds one Limit value, a resistance in the device produces so much Warmth that the bimetal tongue changes into the other switching position. In this other switch position there is a second resistor flowed through by electricity, making one for a hold sufficient amount of heat is generated.
- this object is achieved in that the bimetal switching mechanism one with a second connection of the temperature monitor has connected second fixed switching contact, that the movable switch contact both the first fixed Switching contact and the second fixed switching contact assigned is, and that the bimetal rear derailleur designed as a switch and is connected to the two heating resistors, that it is in its two switching positions on the spring washer the current flowing through the temperature monitor takes over.
- the fixed switch contacts can either directly or via heating resistors with the connections of the Temperature monitor be connected, the edge of the spring washer either firmly clamped or depending on the switching state be connected to the connections via heating resistors can.
- the heating resistors can z. B. one on the lid and the other can be arranged on the housing base.
- the two Heating resistors are dimensioned separately so that in the event of changes in terms of current sensitivity or Self-holding leading current strength only one of the two Resistor components changed and replaced in production must become.
- the two heating resistors can also be like a potentiometer with center tap through a single resistor be realized so that only a single component is used to both the self-holding function and the current sensitivity to realize. When requirements change then only this one component must be replaced.
- Another advantage of the new temperature monitor is that that in the event of destruction or damage to the live Part, for example, due to corrosion or mechanical influences Current can flow more through the temperature monitor, so that the Disadvantages occurring in the prior art can be avoided.
- the bimetallic rear derailleur acts as a changeover switch, there are design-related reasons a brief interruption in the current flow during this switching operation.
- the bimetal rear derailleur can either be imperceptible short or deliberately longer power interruptions come, the z. B. in the consumer to be protected used to reset to an error-free operating state can be.
- These measures were possible in the prior art only with purely opening temperature monitors, i.e. without Self-holding function and current sensitivity can be realized, because the constant high-resistance connection between the two connections no short-term power interruption of the temperature monitor allows. With the new temperature monitor, however, can this short-term power cut can be achieved, though not only the self-holding function but also the current sensitivity can be realized.
- the new temperature monitor is therefore completely due to its new functional principles generally enrich the technology because there are completely new areas of application for this temperature monitor surrender.
- the bimetal rear derailleur depending on the switching state over the spring washer with one or the other of the two heating resistors in series between the terminals of the Temperature monitor is switched when in one of the two Switching states of both heating resistors in series between the connections of the temperature monitor are switched and if necessary the two heating resistors with a single resistor Center tap realized.
- the spring washer is loosely guided at its edge and in its first switching position with the second connection as well as in their second Switch position with the first connection of the temperature monitor is connected directly or via one of the two heating resistors, preferably the first switching contact directly with the first connection and the second switching contact via the first Heating resistor is connected to the second terminal and the Depending on the switching position, the spring washer with its edge over the second heating resistor with the second connection or immediately is connected to the first switch contact.
- the advantage here is that in a structurally very simple manner the switch is achieved in that both the movable Switch contact as well as the edge of the current-carrying spring washer depending on the switch position, a different part of the temperature monitor to contact. It is surprisingly simple possible without major design changes to existing ones Realize the temperature switch function.
- This measure has the advantage that the bimetal rear derailleur can be preassembled, so to speak, so that the assembly of the entire temperature monitor even by inexperienced forces or can be done mechanically.
- Lower part comprises, at least the lower part of electrical conductive material is made and under the bimetal rear derailleur at the bottom of the lower part the two heating resistors are arranged.
- the advantage here is that a so-called encapsulated temperature monitor is created that is very sensitive to environmental influences is insensitive because z. B. no moisture penetrate into it can.
- the two heating resistors can either immediately on the floor or on a support lying on the floor be formed, it is also possible to use a heating resistor to be provided inside and the other outside.
- a carrier part is in the lower part is inserted, on which the two heating resistors are preferred are trained in thick film technology.
- this measure becomes the one for self-retention intended resistance in inexpensive thick-film technology executed so that on the frequently used in the prior art PTC resistor can be omitted.
- the two heating resistors formed as a single component, so that the assembly for such temperature monitors, at which have a self-holding function and an overcurrent sensitivity is very simplified.
- this is Measure also advantageous against the background of warehousing, because for different combinations of heating resistors only one carrier disk with corresponding resistors to be provided so that the storage with respect to stocking parts halved.
- the two heating resistors in Are connected in series, the free end of a heating resistor is connected to the second switch contact, the common Connection of both heating resistors to the second connection is connected and the free end of the other heating resistor is connected to an electrically conductive projection which is the edge of the spring washer in its first switching position supports.
- the cover part is made of made of electrically conductive material and compared to the The lower part is electrically insulated and the first fixed switch contact is arranged on the lid, the spring washer in their second switching position, if necessary, via an electrically conductive Support the spacer with its edge at the bottom of the lid.
- the lower part is a deep-drawn part or stamped part made of electrically conductive material and one or both of the two heating resistors before or after deep drawing or stamping are formed on the bottom of the lower part.
- cover part it is also preferred if it is a Deep-drawn part or stamped part made of electrically conductive material is, with one or both of the heating resistors before or after deep drawing or stamping also formed on the cover part can be.
- the heating resistors are rather before or after the final production of the cover part and lower part of the Housing on the respective flat surface z. B. in thick film technology applied with the interposition of an insulating layer. In the further course of assembling the new temperature monitor then only the possibly preassembled bimetal rear derailleur inserted into the lower part of the housing and then under Intermediate layer of an insulating layer on the cover part Lower part put on and then z. B. by Crimping.
- the last-mentioned measures are particularly in the Connection with an inexpensive and reliable, if necessary automatable final assembly of the new temperature monitor from Advantage.
- a temperature monitor as described above can now optionally the first heating resistor with an insulating part and / or the second heating resistor is replaced by a short-circuit part are, so that with otherwise the same construction of the Temperature monitor optionally with the overtemperature protection function and possibly has overcurrent protection and / or latching.
- the two heating resistors are arranged on the carrier disk are, because then only different carrier disks are used in order not to change the structure of the otherwise Temperature monitor to give different functions.
- This measure is also an advantage if the temperature monitor has a bimetallic tongue, because then you can the two heating resistors optionally by appropriate insulation or short circuit parts are replaced that have the same geometric Have dimensions.
- 10 denotes a new temperature monitor, which comprises a housing 12, the lower part 13 and one has closing cover part 14.
- an insulating ring having a T-shaped cross section 15 provided, which is laterally on the inside of the lower part 13 leans on. Approximately in the middle extends from the insulating ring 15 inside a web 16 on which the cover part 14 rests at the top.
- On the cover part 14 is a kind of insulating cap 17, which over a raised and crimped edge 18 of the lower part 13 is pressed onto the cover part 14. That way the cover part 14 insulated from the lower part 13 and yet firmly incorporated into this.
- a bimetallic switching mechanism 21 is located below the cover part 14 arranged, which comprises a spring washer 22 having a movable Switch contact 23 carries.
- the switch contact 23 is a first fixed switch contact 24 on the underside of the cover part 14 and a second fixed switching contact 25 assigned to the is arranged on a carrier part 26, which is in the bottom Lower part 13 is.
- a contact ring 27 is provided on the carrier part 26 which rests the spring washer 23 with its outer edge 28.
- a bimetallic snap disk is located above the spring washer 22 29, the edge between the web 16 and the Cover part 14 lies.
- the movable switch contact 23 is in the manner of a rivet 31 trained and holds the spring washer 22 and the bimetallic snap disk 29 as follows:
- the rivet 31 has a neck 32 on which a cross section T-shaped ring 33 is arranged. Between an upper head 34 of the rivet 31 and a web 35 of the ring 33 is the Bimetallic snap disc 29 held while on the other Side of the web 35, the spring washer 22 between the web 35 and a washer 36 is held loose against which a lower head 37 of the rivet 31 connects.
- the bimetal rear derailleur 21 is captive Parts prefabricated so that when assembling the temperature monitor 10 can be used as a whole in the lower part 13 can.
- a first terminal 41 of the Temperature monitor in the form of a strand 42 on the cover part 14 is soldered, while a second terminal 43 in the form of a Strand 44 in connection with the lower part 13 via the edge 18 stands.
- the temperature monitor 10 is at one temperature below the switching temperature of the bimetal switching mechanism 21 shown.
- the current flows through the temperature monitor 10 from the first connection 41 via the cover part 14 and the first fixed switch contact 24 on the movable switch contact 23, from there via the spring washer 22 to the contact ring 27. From the current in FIG. 1 does not come closer to the contact ring 27 Resistors shown on the carrier part 26, which in turn is electrically conductively connected to the lower part 13, from where the current then flows to the second terminal 43.
- the bimetallic snap disk 29 is now at its edge supports an outer lower edge 45 of the cover part 14, while the movable switch contact 23 is now on the second fixed switching contact 25 rests.
- the spring washer 22 is also snapped and now none electrically conductive connection with the contact ring 27 more having. The spring washer 22 is now over the spacer ring 38 rather connected to the edge 45 of the cover part 14.
- spring washer 22 is above the bimetallic snap disk 29 without the Function of the bimetal rear derailleur 21 is impaired.
- the current flow through the temperature monitor 10 is now from the connection 41 via the cover part 14 and the edge 45 in the Spring washer 22 and from there via the movable switch contact 23 to the fixed switching contact 25 on the carrier part 26, the is arranged in the lower part 13 on the bottom 46.
- Fig. 3 is a plan view of this carrier disc 26 is shown, which is preferably made of a ceramic disc 47, for. B. consists of Al 2 O 3 or another material.
- a thick-film resistor 48 is arranged on the ceramic disk 47 and extends spirally between the fixed switching contact 25 and a circular contact path 49 or an outer projection 50. Approximately in the middle, the thick-film resistor 48 is provided with a plated-through hole 51, which leads to the underside of the carrier part 26 and makes an electrically conductive contact with the bottom 46 of the lower part 13 there.
- the thick-film resistor 48 is divided into two resistors, namely a first heating resistor 53 between the fixed switching contact 25 and the through-contact 41 and a second heating resistor 54 between the through-contact 51 and the contact path 49.
- the via-contact 51 thus acts like one Type center tap 55, which divides the thick-film resistor 48 into a holding resistor R H provided for the self-holding function with the reference symbol 53 and a series resistor R V provided for the current sensitivity with the reference symbol 54.
- the series resistor R V is connected at its free end 56 to the projection 50, while the heating resistor R H is connected at its free end 47 to the switching contact 25.
- FIG. 4 is an electrical equivalent circuit diagram of the so far temperature monitor 10 shown. It's closed recognize that the spring washer 22 like a type of switch or Changeover switch acts, the one between the series resistor 54 between the two connections 41 and 43 switches and when increasing the Temperature performs a movement in the direction of arrows 58 and then the heating resistor 53 between the connections 41 and 43 switches. In other words, depending on the switching status of the bimetallic switching mechanism 21 is either only the heating resistor 54 or the heating resistor 53 between the two connections 41 and 43 switched. Like the current sensitivity and the Self-holding function caused by the heating resistors 53, 54 is already explained in detail at the beginning, so that for Avoid repetition on this part of the description is referred.
- both heating resistors 53, 54 are formed on the carrier part 26 are, only this support member 26 must be replaced if other resistance values for the heating resistors 53, 54 are desired become.
- the heating resistors 53, 54 it is also possible to use the heating resistors 53, 54 to be formed directly on the bottom 46 of the lower part 13, the Z. B. can be a deep-drawn or stamped part 59 (see Fig. 2).
- Heating resistor 53 by an insulating part 63 and / or the heating resistor 54 to be replaced by a short-circuit part 64, so that the temperature monitor 10 has no self-holding function and / or has no overcurrent sensitivity.
- So overall four differently equipped carrier parts 26 are required, by all four variants of the temperature monitor 10, namely purer Overtemperature protection, overtemperature protection with self-holding function, Over temperature protection with current sensitivity as well Overheating protection with self-holding function and current sensitivity to accomplish. The assembly route and all other parts of the new temperature monitor 10 do not have to be changed.
- FIG. 5 shows an equivalent circuit diagram as shown in FIG. 4, however for a modified embodiment of the new temperature monitor 10. While the series resistor 54 continues is formed on the bottom 46 in the lower part 13 the heating resistor responsible for the self-holding function 53 now on the cover part 14.
- the cover part may be possible that To provide the cover part with a thick-film resistor from the inside, between the edge 45 and the fixed switching contact 24 extends. But it is also possible to remove the cover part from a To manufacture PTC ceramics, so that it already has the required Exhibits resistance.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
- Glass Compositions (AREA)
- Control Of Combustion (AREA)
- Fire-Detection Mechanisms (AREA)
Description
- Fig. 1
- einen Axialschnitt durch den neuen Temperaturwächter, wobei sich das Bimetall-Schaltwerk in seiner ersten Schaltstellung befindet;
- Fig. 2
- eine Darstellung wie Fig. 1, wobei das Bimetall-Schaltwerk jedoch geschaltet hat;
- Fig. 3
- eine Draufsicht auf den die Heizwiderstände tragenden Träger für den Temperaturwächter aus den Fig. 1 und 2;
- Fig. 4
- ein Ersatzschaltbild des in den Fig. 1 bis 3 dargestellten Temperaturwächters; und
- Fig. 5
- ein elektrisches Ersatzschaltbild für ein alternatives Ausführungsbeispiel zu dem Temperaturwächter aus den Fig. 1 bis 4.
Claims (14)
- Temperaturwächter mit einem zum Schutz eines Verbrauchers bei Übertemperatur schaltenden Bimetall-Schaltwerk (21), einem dem Bimetall-Schaltwerk (21) zugeordneten ersten Heizwiderstand (53, RH), der bei betätigtem BimetallSchaltwerk (21) im Sinne einer Selbsthaltefunktion wirkt, und einem dem Bimetall-Schaltwerk (21) zugeordneten zweiten Heizwiderstand (54, Rv), der bei zu hohem Stromfluß durch den Temperaturwächter (10) derart wirkt, daß das Bimetall-Schaltwerk (21) schaltet, um so den Verbraucher vor Überstrom zu schützen, wobei das Bimetall-Schaltwerk (21) einen mit einem ersten Anschluß (41) des Temperaturwächters (10) verbundenen ersten festen Schaltkontakt (24) sowie einen beweglichen Schaltkontakt (23) umfaßt, der von einer durch eine Bimetall-Schnappscheibe (29) bewegbaren Federscheibe (22) getragen wird und mit dieser in leitender Verbindung steht,
dadurch gekennzeichnet, daß das Bimetall-Schaltwerk einen mit einem zweiten Anschluß (43) des Temperaturwächters (10) verbundenen zweiten festen Schaltkontakt (25) aufweist, daß der bewegliche Schaltkontakt (23) sowohl dem ersten festen Schaltkontakt als auch dem zweiten festen Schaltkontakt (25) zugeordnet ist, und daß das Bimetall-Schaltwerk (21) als Umschalter ausgelegt und so mit den beiden Heizwiderständen (53, 54) verschaltet ist, daß es in seinen beiden Schaltstellungen jeweils über die Federscheibe (22) den durch den Temperaturwächter (10) fließenden Strom übernimmt. - Temperaturwächter nach Anspruch 1, dadurch gekennzeichnet, daß das Bimetall-Schaltwerk (21) je nach Schaltzustand über die Federscheibe (22) mit dem einen oder dem anderen der zwei Heizwiderstände (53, 54) in Reihe zwischen die Anschlüsse (41, 43) des Temperaturwächters geschaltet ist.
- Temperaturwächter nach Anspruch 1, dadurch gekennzeichnet, daß das Bimetall-Schaltwerk (21) je nach Schaltzustand über die Federscheibe (22) mit einem oder mit beiden der zwei Heizwiderstände (53, 54) in Reihe zwischen die Anschlüsse (41, 43) des Temperaturwächters (10) geschaltet ist.
- Temperaturwächter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die zwei Heizwiderstände (53, 54) durch einen einzigen Widerstand (48) mit Mittenabgriff (45) realisiert sind.
- Temperaturwächter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Federscheibe (22) an ihrem Rand (28) lose geführt wird und in ihrer ersten Schaltstellung mit dem zweiten Anschluß (43) sowie in ihrer zweiten Schaltstellung mit dem ersten Anschluß (41) des Temperaturwächters (10) direkt oder über einen der zwei Heizwiderstände (53, 54) verbunden ist.
- Temperaturwächter nach Anspruch 5, dadurch gekennzeichnet, daß der erste Schaltkontakt (24) unmittelbar mit dem ersten Anschluß (41) und der zweite Schaltkontakt (25) über den ersten Heizwiderstand (53) mit dem zweiten Anschluß (43) verbunden ist, wobei die Federscheibe (22) mit ihrem Rand (28) je nach Schaltstellung über den zweiten Heizwiderstand (54) mit dem zweiten Anschluß (43) oder unmittelbar mit dem ersten Schaltkontakt (24) verbunden ist.
- Temperaturwächter nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das bewegliche Kontaktteil (23) die Bimetall-Schnappscheibe (29) und die Federscheibe (22) etwa zentrisch durchsetzt und nach Art eines zweiköpfigen Nietes (31) miteinander unverlierbar verbindet.
- Temperaturwächter nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß er ein das Bimetall-Schaltwerk (21) aufnehmendes Gehäuse (12) mit einem von einem Deckelteil (14) verschlossenen topfartigen Unterteil (13) umfaßt, wobei zumindest das Unterteil (13) aus elektrisch leitfähigem Material gefertigt ist und unter dem Bimetall-Schaltwerk (21) am Boden (46) des Unterteiles (13) die zwei Heizwiderstände (53, 54) angeordnet sind.
- Temperaturwächter nach Anspruch 8, dadurch gekennzeichnet, daß in das Unterteil (13) ein Trägerteil (26) eingelegt ist, auf dem die zwei Heizwiderstände (53, 54) ausgebildet sind.
- Temperaturwächter nach Anspruch 9, dadurch gekennzeichnet, daß die beiden Heizwiderstände (53, 54) in Reihe geschaltet sind, das freie Ende (57) eines Heizwiderstandes (53) mit dem zweiten Schaltkontakt (25) verbunden ist, der gemeinsame Anschluß (55) beider Heizwiderstände (53, 54) mit dem zweiten Anschluß (43) verbunden ist und das freie Ende (56) des anderen Heizwiderstandes (54) mit einem elektrisch leitenden Vorsprung (50) verbunden ist, auf dem sich der Rand (26) der Federscheibe (22) in deren erster Schaltstellung abstützt.
- Temperaturwächter nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß das Deckelteil (14) aus elektrisch leitfähigem Material gefertigt sowie gegenüber dem Unterteil (13) elektrisch isoliert und der feste erste Schaltkontakt (24) an dem Deckelteil (14) angeordnet ist, wobei sich die Federscheibe (22) in ihrer zweiten Schaltstellung ggf. über ein elektrisch leitendes Abstandsstück (38) mit ihrem Rand (28) unten am Deckelteil (14) abstützt.
- Temperaturwächter nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß das Unterteil (13) ein Tiefziehteil oder Stanzteil (59) aus elektrisch leitendem Material ist und einer oder beide der zwei Heizwiderstände (53, 54) vor bzw. nach dem Tiefziehen oder Stanzen auf dem Boden (46) des Unterteiles (13) ausgebildet werden.
- Temperaturwächter nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß das Deckelteil (14) ein Tiefziehteil oder Stanzteil aus elektrisch leitendem Material ist und einer oder beide der zwei Heizwiderstände (53, 54) vor bzw. nach dem Tiefziehen oder Stanzen an dem Deckelteil (14) ausgebildet werden.
- Temperaturwächter nach einem der Ansprüche 1 bis 13, bei dem wahlweise der erste Heizwiderstand (53) durch ein Isolierteil (63) und/oder der zweite Heizwiderstand (54) durch ein Kurzschlußteil (64) ersetzt ist, so daß bei ansonsten gleichem konstruktivem Aufbau der Temperaturwächter (10) wahlweise die Funktionen Übertemperatur und ggf. Überstromschutz und/oder Selbsthaltung aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19527254A DE19527254C2 (de) | 1995-07-26 | 1995-07-26 | Temperaturwächter |
DE19527254 | 1995-07-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0756301A2 EP0756301A2 (de) | 1997-01-29 |
EP0756301A3 EP0756301A3 (de) | 1998-05-27 |
EP0756301B1 true EP0756301B1 (de) | 2001-12-19 |
Family
ID=7767808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96106744A Expired - Lifetime EP0756301B1 (de) | 1995-07-26 | 1996-04-29 | Temperaturwächter |
Country Status (4)
Country | Link |
---|---|
US (1) | US5745022A (de) |
EP (1) | EP0756301B1 (de) |
AT (1) | ATE211300T1 (de) |
DE (2) | DE19527254C2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19545998C2 (de) * | 1995-12-09 | 1998-05-20 | Hofsaes Marcel | Schalter mit einem bei Übertemperatur schaltenden Schaltwerk |
DE19748589C2 (de) * | 1997-11-04 | 1999-12-09 | Marcel Hofsaes | Schalter mit einem temperaturabhängigen Schaltwerk |
DE19752581C2 (de) * | 1997-11-27 | 1999-12-23 | Marcel Hofsaes | Schalter mit einem temperaturabhängigen Schaltwerk |
JPH11273519A (ja) * | 1998-03-25 | 1999-10-08 | Hosiden Corp | サーキットプロテクタとそれに用いる弾性熱応動板の製法 |
US5936510A (en) * | 1998-05-22 | 1999-08-10 | Portage Electric Products, Inc. | Sealed case hold open thermostat |
DE19827113C2 (de) * | 1998-06-18 | 2001-11-29 | Marcel Hofsaes | Temperaturabhängiger Schalter mit Stromübertragungsglied |
US6498559B1 (en) * | 2000-05-24 | 2002-12-24 | Christopher Cornell | Creepless snap acting bimetallic switch having step adjacent its bimetallic element |
JP4433283B2 (ja) | 2004-02-06 | 2010-03-17 | タイコエレクトロニクスジャパン合同会社 | スイッチおよびこれを用いた装置 |
JP2006092825A (ja) * | 2004-09-22 | 2006-04-06 | Fuji Denshi Kogyo Kk | 温度スイッチと温度スイッチの組立方法 |
US7209337B2 (en) * | 2005-04-19 | 2007-04-24 | Remy International, Inc. | Electrical thermal overstress protection device |
DE102009030353B3 (de) * | 2009-06-22 | 2010-12-02 | Hofsaess, Marcel P. | Kappe für einen temperaturabhängigen Schalter sowie Verfahren zur Fertigung eines temperaturabhängigen Schalters |
DE102009039948A1 (de) * | 2009-08-27 | 2011-03-03 | Hofsaess, Marcel P. | Temperaturabhängiger Schalter |
CN102446656A (zh) * | 2010-09-30 | 2012-05-09 | 宝应电器厂 | 薄型温控器 |
DE102012103306B3 (de) * | 2012-04-17 | 2013-04-25 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter mit Kontaktteil als Heizwiderstand |
DE102013101392A1 (de) * | 2013-02-13 | 2014-08-14 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE102013108508A1 (de) * | 2013-08-07 | 2015-02-12 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter |
DE102013109291A1 (de) * | 2013-08-27 | 2015-03-05 | Thermik Gerätebau GmbH | Temperaturabhängiger Schalter mit am Rand eingeklemmter Schnappscheibe |
DE102013017232A1 (de) | 2013-10-17 | 2015-04-23 | Thermik Gerätebau GmbH | Temperaturabhängiges Schaltwerk |
CN110021505B (zh) * | 2019-05-19 | 2021-03-09 | 神州技测(上海)电子科技有限公司 | 电流过载保护器 |
IT202100018779A1 (it) * | 2021-07-15 | 2023-01-15 | Miotti S R L | Dispositivo limitatore di temperatura |
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Publication number | Priority date | Publication date | Assignee | Title |
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BE452864A (de) * | 1942-10-27 | |||
NL168156B (nl) * | 1951-04-10 | Atlas Copco Ab | Draaislagwerktuig met omkeerbare slagrichting. | |
FR1401964A (fr) * | 1963-07-19 | 1965-06-11 | Otter Controls Ltd | Interrupteur électrique sensible à la température |
FR2138182B3 (de) * | 1971-05-19 | 1973-05-11 | Dumesny Jacques | |
US3667539A (en) * | 1971-05-24 | 1972-06-06 | Barber Colman Co | On-off time proportioning summer-winter thermostat and control system employing same |
US5528448A (en) * | 1982-10-12 | 1996-06-18 | Leviton Manufacturing Co., Inc. | Heat flow detector for recessed incandescent fixtures |
DE3601055A1 (de) * | 1986-01-16 | 1987-07-23 | Limitor Ag | Sicherheitsausschaltvorrichtung |
DE3710387A1 (de) * | 1987-04-01 | 1988-10-13 | Thermostat & Schaltgeraetebau | Leistungssteuergeraet |
DE4142716C2 (de) * | 1991-12-21 | 1997-01-16 | Microtherm Gmbh | Thermoschalter |
DE9214940U1 (de) * | 1992-11-03 | 1992-12-17 | Thermik Geraetebau Gmbh, 7530 Pforzheim | Temperaturwächter |
DE19604939C2 (de) * | 1996-02-10 | 1999-12-09 | Marcel Hofsaes | Schalter mit einem temperaturabhängigen Schaltwerk |
-
1995
- 1995-07-26 DE DE19527254A patent/DE19527254C2/de not_active Expired - Fee Related
-
1996
- 1996-04-29 EP EP96106744A patent/EP0756301B1/de not_active Expired - Lifetime
- 1996-04-29 AT AT96106744T patent/ATE211300T1/de not_active IP Right Cessation
- 1996-04-29 DE DE59608480T patent/DE59608480D1/de not_active Expired - Fee Related
- 1996-07-26 US US08/686,853 patent/US5745022A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0756301A2 (de) | 1997-01-29 |
DE19527254A1 (de) | 1997-01-30 |
DE59608480D1 (de) | 2002-01-31 |
US5745022A (en) | 1998-04-28 |
ATE211300T1 (de) | 2002-01-15 |
DE19527254C2 (de) | 2000-01-20 |
EP0756301A3 (de) | 1998-05-27 |
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