EP1223597A1 - Temperaturbegrenzer - Google Patents
Temperaturbegrenzer Download PDFInfo
- Publication number
- EP1223597A1 EP1223597A1 EP01890007A EP01890007A EP1223597A1 EP 1223597 A1 EP1223597 A1 EP 1223597A1 EP 01890007 A EP01890007 A EP 01890007A EP 01890007 A EP01890007 A EP 01890007A EP 1223597 A1 EP1223597 A1 EP 1223597A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch head
- head
- switch
- relative movement
- temperature
- 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
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0066—Auxiliary contact devices
-
- 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
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
- H01H37/48—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible rigid rods or tubes
Definitions
- the invention relates to a switch head for attachment to a elongated expansion elements with different from each other Thermal expansion coefficient comprehensive temperature sensor and to accommodate a Device for evaluating the relative movement of the expansion elements with one another.
- Hobs are often made from a serving surface for cooking vessels Glass ceramic plate (ceramic plate) formed with the heating room underneath.
- Such Hobs can be heated in various ways, for example, can electrical heating resistors, halogen lights, gas or the like can be specified. With everyone Heating variant can overheat the ceramic hob to destroy it, why such overheating must be avoided.
- Temperature limiters are commonly used for this purpose, including a temperature sensor and an associated switching head connected to this. Your temperature sensor is located underneath the ceramic plate in the heating room and is therefore exposed to approximately the same temperature as the ceramic plate.
- the temperature sensor When the temperature sensor heats up, it becomes movable in relation to the Switch head held sensor component shifted relative to the switch head, which Relative movement via a mechanical operative connection - which in the simplest case a St torquel is formed - is transferred to a switch. If the temperature sensor is one If the temperature is too high for the ceramic hob, the relative movement under discussion takes on such a way to a large extent that the switch is actuated, thereby increasing the heating power of the Hob heating is reduced or interrupted.
- Combined switch heads are also known from AT 404 776, which the fulfill the described function, to avoid overheating, and at the same time a provide so-called hot display, by which the user touches one before hot point of the hob can be warned.
- switch heads for Known temperature limiters that combine different other functions.
- this is achieved in that fasteners for Attachment of at least one other switch head are provided and that at least one Recess for receiving a transmission link for forwarding the relative movement the expansion elements is provided on the at least one further switching head.
- the recess is formed by omitting a side wall of the switch head. You get a very lightweight construction.
- an electrical switch contact in Switch head is added. In this way you get a particularly simple one Temperature limitation by placing the switching contact in series with the heating resistor, for example the hob is switched.
- a transmission element in the form of a St clutchls mounted in the switch head along its longitudinal axis is provided. This brings with it the advantage of a particularly stable and simple embodiment.
- a Transmission member for forwarding the relative movement of the expansion elements to the at least one further switching head is provided.
- the attachment another switching head no additional transmission element may be provided, whereby a particularly simple assembly of the two switch heads results.
- the transmission member by a along its longitudinal axis St sterilizl is slidably formed in the switch head. This also brings the advantage of one particularly stable and simple embodiment with itself.
- the switch head is closed by a removable cover. In the event that no other Switch head is attached to the first switch head, so the first switch head can penetrating dirt are protected.
- the invention relates to a switch head for receiving a Device for evaluating the relative movement of two or more elongated ones Expansion elements with different coefficients of thermal expansion among themselves.
- this is achieved in that fasteners for Attachment to another switch head are provided and that at least one Recess for receiving a transmission link for forwarding the relative movement the expansion elements is provided on this switch head.
- the switch head can be used as an additional module Temperature limiters are used.
- the recess is formed by omitting a side wall of the switch head. You get a very lightweight construction.
- an electrical switch contact in Switch head is added. In this way you get a particularly simple one Temperature limitation by placing the switching contact in series with the heating resistor, for example the hob is switched.
- a Transmission member for forwarding the relative movement of the expansion elements this switch head is provided.
- no additional transmission element can be provided in this.
- the transmission member by a along its longitudinal axis St sterilizl is slidably formed in the switch head. This also has the advantage a particularly stable and simple embodiment with itself.
- the switch head is closed by a removable cover. In the event that no other Switch head is attached to the first switch head, so the first switch head can penetrating dirt are protected.
- the invention relates to a temperature limiter comprising an elongated expansion elements with different from each other Thermal expansion coefficient having temperature sensor and one in the second Arranged end region of the temperature sensor, a device for evaluating the Relative movement of the switching head having expansion elements.
- Such temperature limiters are, as already described, related known with the overheating protection of glass ceramic hobs. Also combined Temperature limiters and hot indicators are known in this context.
- a temperature limiter comprises a further one further device for evaluating the relative movement of the expansion elements having switching head which is connected to the first switching head.
- the temperature limiter can be removed by removing the second one Switch head can be changed in a simple manner, or there can be additional modules on the Temperature limiters are attached.
- an additional module is provided, which is provided with a bore, preferably made of ceramic formed, includes the body with which bore the additional module over the Temperature sensor is inserted. This allows additional functions in the area of Temperature sensor can be provided.
- the additional module is connected directly to the switch head. You get one special stable connection of the additional module with the temperature limiter.
- the Additional module a resistance fixed on the base body, preferably ohmic Resistance, with temperature-dependent resistance value. In this way, a accurate temperature measurement can be performed.
- the Resistance through a printed on the base body preferably by means of screen printing Resistance paste is formed.
- This offers the advantage of a particularly compact design.
- the resistance in this variant can be produced in one operation and be fixed on the base body, which means a separate method for attaching the Resistance can be omitted.
- the material and the course the resistance paste the area in which the resistance value lies as well as its Temperature dependency can be specified.
- the resistance is shielded by a heat shield.
- the heat shield is formed by the mass of the base body. This results in a particularly simple one Construction method.
- the Additional module two spark gaps defined on the base body, a spark gap between them forming electrodes. This makes it possible to use gas hobs in addition to the mentioned temperature limiter also a device for igniting the gas to be provided within the boiler room.
- the Additional module a fixed to the base body, preferably designed as a spiral, Has heating resistor.
- An ignition element of this type has a particularly simple one Structure on and is therefore compared to other conceivable variants such as spark plug more reliable and easier to control.
- the present invention relates to a switch head, which on a Temperature sensor comprising elongated expansion elements with each other different coefficients of thermal expansion can be determined and which one device to evaluate the relative movement of the expansion elements can.
- the radiant heater designated 1 in FIG. 1 consists of a pot 2, in which there is a spirally placed heating coil 3, which is embedded in an investment 4 is embedded.
- the radiant heater 1 is below the plate 5 made of metal, glass ceramic od. Like. Arranged, which forms the cooking surface 6. Between the cooking surface 6 and the Heating coil 3, the temperature sensor 7 is arranged, which is connected to the switching head 8 stands, the temperature sensor 7 in a simple manner by drilling the Radiant heater 1 is passed.
- the temperature sensor 7 is thus exposed to the temperature below the Cooking surface 6 in the radiation space between the cooking surface 6 and the heating coil 3 prevails and can thus detect this temperature.
- Elongated expansion elements 9, 10 are provided, which differ from one another have large coefficients of thermal expansion.
- These expansion elements 9, 10 can Of course, it can also be designed as a bar and lying next to one another, preferably however, the first of these expansion elements 10 as a tube, in particular with annular cross section, and the second expansion element 9 as a rod, preferably executed with a circular cross-section.
- the rod 9 is inside the tube 10 arranged horizontally.
- the tube 10 and the rod 9 are 100 in the first end region held immovable to each other while in the second end region 110, i.e. in the area of the switching head 8, are held movable relative to one another.
- the coefficient of expansion of the rod 9 larger than that of the tube 10, which can be realized, for example, that the rod 9 made of a metal and the tube 10 made of a ceramic, such as cordierite in particular, is made.
- the immobile mounting of the rod 9 relative to the tube 10 in the first End area 100 is realized by a stop 19 ′ fixed to the rod 9, with which stop can support the first rod end at the first pipe end.
- This stop 19 'can for example by a non-detachably connected to the rod 9, e.g. welded or glued component be formed.
- the stop 19 'can also be a screw nut 19, which is screwed onto the threaded first end of the rod 9, and by a washer 17 which lies between this nut 19 and the first pipe end, be educated.
- a spring 11 for example one Helical compression spring arranged, which the second end of the rod 9 in the direction away from prestresses the second end of the tube 10.
- the rod 9 expands more than that Tube 10.
- the second end of the rod can thus - as in Fig. 3 with the one labeled T + Arrow indicated - move away from the second pipe end.
- the resulting relative movement between the second rod and the second pipe end (in the drawings as a change in length of the rod 9 ⁇ L drawn in, the change in length of the tube 10 is due to its design Ceramics practically negligible) can be used as a directly proportional measure of the temperature of sensor 7 and thus be evaluated for the temperature of the sensor environment.
- This Evaluation can basically be done in any form, the most common and in the Variant shown in the drawings is the second pipe end over a Transmission link 20 to one shown only schematically for the sake of clarity Switch contact 22 'to act.
- the evaluation can also be carried out by others, e.g. Inductive evaluation devices take place, as in FIGS. 5, 6 and 7 for the second Switch head 8 'described.
- the switch contact 22 ' can be connected in series with a heating resistor, by means of which the environment of the temperature sensor 7, such as in particular that in FIG hob shown, is heated. This is a limitation or regulation the temperature generated there possible.
- Switch contact 22 'and transmission element 20 are in the switch head 8 stored, to which the second end of the tube 10 is also attached. So that is ensured that the second tube end and switching contact 22 'are held immovable to one another and the discussed actuation of the switch contact 22 'by the second one in the switch head 8 movably mounted rod end is possible.
- the transmission link 20 is here by a St torquel formed, but springs or rods with different can just as well Formations can be used as transmission elements.
- the relative movement between the second tube and the second rod end can be in can be measured in any other way, for example by recording the Rod expansion by means of strain gauges, by inductive sensors (e.g. on the second one Dipped anchor transducers attached) or by optical transducers (Photocells).
- the modules required for this are accommodated in the switch head 8.
- this measurement result can be used for other purposes, for example for Display the temperature or to signal that the temperature is a certain value exceeded.
- FIG. 4 is based on the same basic functional principle, here, however, the pipe 10 has a higher coefficient of thermal expansion than the rod 9.
- the tube 10 In the first end region 100 is the tube 10 with a metal, for example formed and welded to the tube 10 plug 17 ', on which the Front of the rod 9 is applied.
- the second end of the tube 10 is again on the switch head 8 fixed, the second end of the rod 9 is movably mounted in the switch head 8 and is by a spring 11 pressed into the tube 10.
- the present invention is based on the idea of a Temperature limiter comprising - corresponding to that described above - one To build up temperature sensor 7 and an associated switching head 8 in a modular manner, i.e. on the switching head 8 to couple a further switching head 8 'which has a further device 80' for evaluating the relative movement of the expansion elements 9, 10.
- FIG. 5 shows a switching head 8 according to the invention together with temperature sensors 7 and attached second switch head 8 'shown.
- the switching head 8 has the Temperature sensor 7 opposite side fasteners 200, which in Fig.5 by Threaded bores 201 are realized.
- the second switching head 8 ' is via screws 203 which bores 201 'in the housing of the second switching head 8' into the Engage threaded holes 201, attached to the first switch head 8.
- the temperature sensor 7 again has a rod 9 guided in a tube 10 on which two components have different thermal expansion coefficients to have.
- Rod 9 and tube 10 are in one of the ways described above in the first end region 100 immovable to one another and in the second end region 110 movable to one another in Switch head 8 held.
- the evaluation device 80 is in Figure 5 by a switch contact 22 ' realized.
- This switch contact 22 ' comprises a contact 22 fixed in the switch head 8, the is connected to a terminal lug 23 via a contact carrier 24.
- This close contact 22 interacts with a movable contact 25 which is held on a contact spring 26 which is in turn held on a contact carrier 27 and electrically connected to another Terminal lug 28 is connected.
- the contact spring 26 has a punched-out tab 29 on the one connected to the contact carrier 27 and the contact spring 26 Support 30 is supported.
- the transmission member 20 lies on the contact spring 26, approximately in the central region thereof, where it has a transverse rib 31. Temperature-related shifts in the Transmission member 20 thus have an opening or closing of the contact system Episode.
- the second is Switch head 8 'arranged device 80' for evaluating the relative movement by a Switch contact 22 "is formed, on which this relative movement is transmitted (see Fig. 9).
- the device arranged in the second switching head 8 ' 80 ' are used to evaluate the relative movement for the so-called hot display, as it is known to warn of touching a hot area of the cooking surface.
- it can also be combined with other measuring devices.
- Measuring devices possible in which the relative movement in an analog electrical Signal is converted see Fig. 5).
- the switching head 8 shown in FIG. 5 thus offers the Possibility to build any temperature limiter in a modular way. Temperature limiter consisting of a temperature sensor 7 and a switch head 8 can be produced as such or with any extensions in a simple manner.
- the second switching head 8 ' To transmit the relative movement of the expansion elements 9, 10 with each other to the second switching head 8 'is a further tappet as a further one in FIG Transmission link 20 'provided.
- Other elements such as Rods or springs are used.
- a closure cover 250 can be provided, through which the corresponding switching head 8, 8 ' can be closed if no second switch head is attached to it (Fig. 15).
- Closure cover 250 can be used for the first switch head 8 as well as for the second Switch head 8 'may be provided.
- the closure lid 250 can existing fasteners 200 or 200 'are held, or more Fastening means for the closure cover 250 may be provided.
- FIG. 5 shows a switching head 8 according to the invention, to which only one further switch head 8 'is attached. But in terms of the modular structure, it is one Overall module also possible to add further switch heads 8 "to the second switch head 8 ' fasten (Fig. 8). This can e.g. used to create two-stage hot displays realize that only on simple switch contacts for evaluating the relative movement based. Multi-colored lamps can e.g. the states “cold”, “warm” and “hot” of the hob are displayed.
- FIGS. 5-7 show further possible devices 80 'for evaluating the Relative movement of the rod 9 in the second additional module or in the second switching head 8 '.
- these or other devices in the first switching head 8 it is also possible to have these or other devices in the first switching head 8 to be provided and correspondingly more in the additional modules.
- one Measuring device possible which delivers an analog, electrical output signal.
- a possible embodiment of such a measuring device is e.g. on inductive displacement transducer, which in Fig. 5 in the form of a simple plunger anchor transducer is shown.
- This plunger anchor pick-up consists of a coil 32 into which a displaceable, between the transfer member 20 'and spring 21 arranged iron core 33 immersed, formed.
- the movement of the iron core 33 caused by the rod 9 is achieved by that the second transmission member 20 'is moved by the first transmission member 20. As can be seen in FIG. 5, this can be achieved in a simple manner in that the Transfer member 20 'is placed directly on the spring 26.
- the first transmission member 20 over the Contact spring 26 extends and so carries the second transmission member 20 '.
- the contact spring 26 through openings through which the transmission member 20th is passed through.
- the transmission member 20 in Area of the transverse rib 31 of the contact spring 26 has a shoulder with which it Contact spring 26 can continue to move.
- the measuring device 80 ' is on via electrical lines 55, 56 Connection lugs 37, 38 led, via which they e.g. with a no longer shown Circuit for processing the measurement signal for a corresponding display can be connected.
- the inductive transducer of Fig. 6 is a transverse armature transducer. Located here the coil 32 on the leg of a U-shaped core 39. The magnetic circuit by a spaced from the core 39 and again with the transmission member 20 ' connected cross anchor 40 closed. The caused by temperature change Movement of the cross anchor 40 changes its distance from the core 39, which is reflected in Changes in the inductance of the coil 32 expresses.
- the fastening means 200 ' are formed in FIG. 6 by tabs 202' which can engage in corresponding recesses in the switch head 8 and thus a fixed detachable Allow connection of the two switch heads 8, 8 '.
- a temperature limiter is shown in FIG of the transmission member 20 'in the direction of the rod 9, a U-shaped spring 48, which with its first leg 49 on the switching head 8 'and with its second leg 50 on the transmission link 20 'supports, is provided.
- the measuring device is here by a Strain gauge 51 is formed, which is fixed on the U-shaped spring 48.
- those between the respective Measuring device 80 'and the associated connecting lugs 37, 38 extending electrical Lines 55, 56 preferably through conductor tracks applied directly to a thin ceramic plate educated.
- the so-called is used to define these conductor tracks on the ceramic "Direct Copper Bonding" (DCB) process, a particularly good connection from Joining process providing copper and ceramic.
- DCB Direct Copper Bonding
- Wheatstone bridges with which changes in resistance in changes their output voltage are used. With those Realizations of the measuring device in which an inductance or a capacitance and thus If a complex resistance is changed (Fig. 5 to 6), these are Wheatstone bridges to operate with AC voltage.
- a display downstream of the evaluation circuit can e.g. the shape of several have lamps arranged in a row, the number of illuminating lamps in Depending on the output signal of the measuring device is changed.
- a lighting device could be used, the color of which changes due to the measurement signal is used or a pointer instrument connected to the measuring device.
- FIGS. 9 and 10 show a temperature limiter according to the invention modular structure.
- This includes a switch head 8 according to the invention and a Temperature sensor 7.
- additional modules 71-75 and in the area of the switch head 8 opposite the temperature sensor 7 additional switch heads 8 ', 8 "are attached.
- the sketched contact system 22 ' such as the power supply to a radiator or the gas supply to a gas heater to be interrupted.
- the basic module additional modules are added by placing the modules on the temperature sensor 7 be plugged on.
- the base body 70 of the additional modules 71-75 with holes 220 ' provided.
- a connection to the switch head 8 itself is possible. So can e.g. Fastening elements such as tabs or threads for fastening the Additional modules 71-75 can be provided directly on the switch head 8. These fasteners can be provided on the switch head 8 and / or on the additional modules 71-75.
- the temperature sensor 7 itself the fastener in the sense of Invention forms in that the additional modules have a press fit on the temperature sensor 7 be plugged on.
- the additional modules outlined in FIG. 9 are briefly described below.
- the inductance of the coil 71 'monitored A cookware placed on the hotplate from one of the usual ones Materials such as steel or copper affect the inductance of the coil 71 ', which change can be recognized and evaluated. By an exact evaluation of the Changes in inductance can make statements about the material of the cookware as well its temperature will be hit.
- the sensor module for analog temperature measurement 72 has one temperature-dependent resistor 72 ', whose resistance value is measured and is evaluated and thus provides information about the current temperature in the hob.
- an ohmic resistor is used for this, but it can also more general temperature-dependent impedances are used.
- Resistor 72 ′ is located on only one side of sensor module 72 applied and introduced into the hob so that the base body 70 between Heating coil 3 and resistor 72 'is located and thus shields the resistor 72'.
- temperatures of the resistor 72 'and Bringing hotplate 5 in line consists of the base body 72 and the Form hotplate 5 from the same material.
- sensor modules are made Ceramic / Ceran advantageous. Using the same material ensures that Resistor 72 'heats up just as quickly as the ceramic plate of the hob.
- the display module for hot display 73 includes a display device 73 '. This can provide information about whether the hotplate can be touched safely. can be read directly from the danger zone.
- the additional modules 74 and 75 are igniters for ignition a gas flame under the ceramic hob. With gas-heated hobs, it is necessary to in addition to the temperature limiter mentioned, a device for igniting the gas to be provided within the boiler room.
- the spark igniter 74 has two electrodes 74 ', 74 ", one Form a spark gap with a precisely determinable distance.
- the skipping spark brings that Ignition gas.
- the gas is ignited by a filament, which in the embodiment sketched in FIG. 9 by a one fixed to the base body 70 Heating coil 75 is formed.
- All additional modules have bores 220 'which accommodate the Serve temperature sensor 7, with which the attachment of the additional modules to the invention Temperature limiter takes place.
- the second switching head 8 ' is designed as a residual heat module for Hot display is used, with the sketched contact 22 "the temperature of the hotplate with two values, namely "too hot for safe touch” and “sufficiently cool for safe touch "is described.
- FIG. 10 shows a combination of several modules according to the invention from a basic module including temperature sensor 7 and switch head 8, a residual heat module or switching head 8 'and a spark igniter 74.
- the combination shown can be used as a temperature limiter for a gas ceran hob.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Thermally Actuated Switches (AREA)
- Temperature-Responsive Valves (AREA)
- Thermistors And Varistors (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims (22)
- Schaltkopf (8) zur Befestigung an einen langgestreckte Ausdehnungselemente (9,10) mit voneinander verschiedenen Wärmeausdehnungskoeffizienten umfassenden Temperaturfühler (7) und zur Aufnahme einer Vorrichtung (80) zur Auswertung der Relativbewegung der Ausdehnungselemente (9,10) untereinander, dadurch gekennzeichnet, daß Befestigungsmittel (200) zur Befestigung zumindest eines weiteren Schaltkopfes (8') vorgesehen sind und daß zumindest eine Aussparung (210) zur Aufnahme eines Übertragungsgliedes (20') zur Weiterleitung der Relativbewegung der Ausdehnungselemente (9,10) an den zumindest einen weiteren Schaltkopf (8') vorgesehen ist.
- Schaltkopf (8) nach Anspruch 1, dadurch gekennzeichnet, daß die Aussparung (210) durch Weglassen einer Seitenwand des Schaltkopfs (8) gebildet ist.
- Schaltkopf (8) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Vorrichtung (80) zur Auswertung der Relativbewegung ein elektrischer Schaltkontakt (22') im Schaltkopf (8) aufgenommen ist.
- Schaltkopf (8) nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß zur Übertragung der Relativbewegung der Ausdehnungselemente (9,10) auf die Vorrichtung (80) zur Auswertung dieser Relativbewegung ein Übertragungsglied (20) in Gestalt eines entlang seiner Längsachse verschiebbar im Schaltkopf (8) gelagerten Stößls vorgesehen ist.
- Schaltkopf (8) nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß ein Übertragungsglied (20') zur Weiterleitung der Relativbewegung der Ausdehnungselemente (9,10) an den zumindest einen weiteren Schaltkopf (8') vorgesehen ist.
- Schaltkopf (8) nach Anspruch 5, dadurch gekennzeichnet, daß das Übertragungsglied (20') durch einen entlang seiner Längsachse verschiebbar im Schaltkopf (8) gelagerten Stößl gebildet ist.
- Schaltkopf (8) nach einem der Ansprüche 1-6, dadurch gekennzeichnet, daß der Schaltkopf (8) durch einen abnehmbaren Verschlußdeckel (250) verschlossen ist.
- Schaltkopf (8') zur Aufnahme einer Vorrichtung (80') zur Auswertung der Relativbewegung zweier oder mehrerer langgestreckter Ausdehnungselemente (9,10) mit voneinander verschiedenen Wärmeausdehnungskoeffizienten untereinander, dadurch gekennzeichnet, daß Befestigungsmittel (200') zur Befestigung an einem anderen Schaltkopf (8) vorgesehen sind und daß zumindest eine Aussparung (210') zur Aufnahme eines Übertragungsgliedes (20') zur Weiterleitung der Relativbewegung der Ausdehnungselemente (9,10) an diesen Schaltkopf (8') vorgesehen ist.
- Schaltkopf (8') nach Anspruch 8, dadurch gekennzeichnet, daß die Aussparung (210') durch Weglassen einer Seitenwand des Schaltkopfs (8') gebildet ist.
- Schaltkopf (8') nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß als Vorrichtung (80') zur Auswertung der Relativbewegung ein elektrischer Schaltkontakt (22") im Schaltkopf (8') aufgenommen ist.
- Schaltkopf (8') nach einem der Ansprüche 8-10, dadurch gekennzeichnet, daß ein Übertragungsglied (20') zur Weiterleitung der Relativbewegung der Ausdehnungselemente (9,10) an diesen Schaltkopf (8') vorgesehen ist.
- Schaltkopf (8') nach Anspruch 11, dadurch gekennzeichnet, daß das Übertragungsglied (20') durch einen entlang seiner Längsachse verschiebbar im Schaltkopf (8') gelagerten Stößl gebildet ist.
- Schaltkopf (8') nach einem der Ansprüche 8-12, dadurch gekennzeichnet, daß der Schaltkopf (8') durch einen abnehmbaren Verschlußdeckel (250) verschlossen ist.
- Temperaturbegrenzer umfassend einen langgestreckte Ausdehnungselemente (9,10) mit voneinander verschiedenen Wärmeausdehnungskoeffizienten aufweisenden Temperaturfühler (7) und einen im zweiten Endbereich (110) des Temperaturfühlers (7) angeordneten, eine Vorrichtung (80) zur Auswertung der Relativbewegung der Ausdehnungselemente (9,10) aufweisenden Schaltkopf (8), gekennzeichnet durch einen weiteren, eine weitere Vorrichtung (80') zur Auswertung der Relativbewegung der Ausdehnungselemente (9,10) aufweisenden Schaltkopf (8'), der mit dem ersten Schaltkopf (8) verbunden ist.
- Temperaturbegrenzer nach Anspruch 14, dadurch gekennzeichnet, daß ein Zusatzmodul (71-75) vorgesehen ist, welches einen mit einer Bohrung (220') versehenen, vorzugsweise aus Keramik gebildeten, Grundkörper (70) umfaßt, mit welcher Bohrung (220') das Zusatzmodul (71-75) über den Temperaturfühler (7) gesteckt ist.
- Temperaturbegrenzer nach Anspruch 15, dadurch gekennzeichnet, daß das Zusatzmodul (71-75) direkt mit dem Schaltkopf (8) verbunden ist.
- Temperaturbegrenzer nach einem der Ansprüche 14-16, dadurch gekennzeichnet, daß das Zusatzmodul (72) einen am Grundkörper (70) festgelegten Widerstand (72'), vorzugsweise ohmschen Widerstand, mit temperaturabhängigem Widerstandswert aufweist.
- Temperaturbegrenzer nach Anspruch 17, dadurch gekennzeichnet, daß der Widerstand (72') durch eine auf den Grundkörper (70), vorzugsweise mittels Siebdruck, aufgedruckte Widerstandspaste gebildet ist.
- Temperaturbegrenzer nach Anspruch 17 oder 18, dadurch gekennzeichnet, daß der Widerstand (72') durch einen Wärmeschild (172) abgeschirmt ist.
- Temperaturbegrenzer nach Anspruch 19, dadurch gekennzeichnet, daß der Wärmeschild (172) durch die Masse des Grundkörpers (70) gebildet ist.
- Temperaturbegrenzer nach einem der Ansprüche 14-16, dadurch gekennzeichnet, daß das Zusatzmodul (74) zwei am Grundkörper (70) festgelegte, eine Funkenstrecke zwischen sich ausbildende Elektroden (74',74'') aufweist.
- Temperaturbegrenzer nach einem der Ansprüche 14-16, dadurch gekennzeichnet, daß das Zusatzmodul (75) einen am Grundkörper (70) festgelegten, vorzugsweise als Spirale ausgeführten, Heizwiderstand (75') aufweist.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01890007A EP1223597B1 (de) | 2001-01-10 | 2001-01-10 | Temperaturbegrenzer |
AT01890007T ATE371256T1 (de) | 2001-01-10 | 2001-01-10 | Temperaturbegrenzer |
DE50112906T DE50112906D1 (de) | 2001-01-10 | 2001-01-10 | Temperaturbegrenzer |
ES01890007T ES2291291T3 (es) | 2001-01-10 | 2001-01-10 | Limitador de temperatura. |
US10/037,253 US20020089406A1 (en) | 2001-01-10 | 2002-01-03 | Temperature limiter |
US10/379,172 US6724294B2 (en) | 2001-01-10 | 2003-03-04 | Temperature limiter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01890007A EP1223597B1 (de) | 2001-01-10 | 2001-01-10 | Temperaturbegrenzer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1223597A1 true EP1223597A1 (de) | 2002-07-17 |
EP1223597B1 EP1223597B1 (de) | 2007-08-22 |
Family
ID=8185083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01890007A Expired - Lifetime EP1223597B1 (de) | 2001-01-10 | 2001-01-10 | Temperaturbegrenzer |
Country Status (5)
Country | Link |
---|---|
US (2) | US20020089406A1 (de) |
EP (1) | EP1223597B1 (de) |
AT (1) | ATE371256T1 (de) |
DE (1) | DE50112906D1 (de) |
ES (1) | ES2291291T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006037712A1 (de) * | 2006-08-08 | 2008-02-14 | E.G.O. Elektro-Gerätebau GmbH | Schalteinrichtung für eine Heizeinrichtung |
WO2008099134A1 (en) * | 2007-02-13 | 2008-08-21 | Ceramaspeed Limited | Temperature sensor for radiant electric heaters |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502004000953D1 (de) * | 2004-02-24 | 2006-08-24 | Electrovac | Temperaturfühler |
CN100446148C (zh) * | 2005-11-07 | 2008-12-24 | 徐佳义 | 手动复位温控器 |
WO2009088809A1 (en) * | 2008-01-02 | 2009-07-16 | W.C. Bradley Company | Temperature measurement means for cooking appliances |
DE102009038960A1 (de) * | 2009-08-19 | 2011-02-24 | E.G.O. Elektro-Gerätebau GmbH | Temperaturfühler und Verfahren zur Justierung eines solchen Temperaturfühlers |
GB2474238B (en) * | 2009-10-06 | 2013-12-04 | Heatrod Elements Ltd | Improvements in and relating to thermostats |
IT1401027B1 (it) * | 2010-07-29 | 2013-07-12 | Thermowatt Spa | Termostato elettronico ed elettromeccanico perfezionato |
IT1401780B1 (it) * | 2010-09-22 | 2013-08-28 | Thermowatt Spa | Termostato elettronico con sicurezza attivata da resistori. |
JP5271327B2 (ja) * | 2010-09-27 | 2013-08-21 | パナソニックEsパワーツール株式会社 | 電動工具 |
DE102010038004B4 (de) * | 2010-10-06 | 2014-10-02 | Prüfrex engineering e motion gmbh & co. kg | Zündfunkengeber und Verfahren zu dessen Herstellung |
DE102018213625A1 (de) * | 2018-08-13 | 2020-02-13 | Siemens Aktiengesellschaft | Schaltanlagentemperaturmessung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225490A2 (de) * | 1985-11-14 | 1987-06-16 | E.G.O. Elektro-Geräte Blanc u. Fischer | Temperaturbegrenzer |
EP0279368A2 (de) * | 1987-02-19 | 1988-08-24 | E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG | Temperaturbegrenzer |
US5627507A (en) * | 1993-12-03 | 1997-05-06 | Electrovac, Fabrikation Elektronischer Spezialartikel Gesellschaft M.B.H. | Temperature control device with a spring-biased stem and a switch spring of bridge-like configuration |
AT404776B (de) * | 1997-09-03 | 1999-02-25 | Electrovac | Vorrichtung zur heissanzeige |
Family Cites Families (11)
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US3029329A (en) * | 1959-07-13 | 1962-04-10 | Therm O Disc Inc | Thermostatic controls |
US3243557A (en) * | 1964-03-06 | 1966-03-29 | Stewart Warner Corp | Thermally actuated control device having ceramic tubes with central heat expandible members |
GB1079884A (en) * | 1964-07-31 | 1967-08-16 | Drayton Controls Ltd | Temperature responsive switching devices |
US3921198A (en) * | 1973-11-12 | 1975-11-18 | Texas Instruments Inc | Thermostatic two-pole switch |
US4008454A (en) * | 1975-11-04 | 1977-02-15 | General Electric Company | Differential expansion rod and tube thermostat |
ES2066805T3 (es) * | 1988-06-25 | 1995-03-16 | Ego Elektro Blanc & Fischer | Termointerruptor. |
DE4138817A1 (de) * | 1991-11-26 | 1993-05-27 | Ego Elektro Blanc & Fischer | Temperaturerfassungs-geraet |
GB2263770B (en) * | 1992-01-23 | 1994-11-02 | Ceramaspeed Ltd | Device for controlling or limiting temperature in an electric cooking appliance |
US5243315A (en) * | 1992-10-19 | 1993-09-07 | Therm-O-Disc, Incorporated | Thermostatic switch assembly |
AT405566B (de) * | 1996-07-30 | 1999-09-27 | Electrovac | Temperaturbegrenzer mit zündelement |
DE19925367A1 (de) * | 1998-07-09 | 2000-01-13 | Electrovac | Temperatursensor |
-
2001
- 2001-01-10 AT AT01890007T patent/ATE371256T1/de not_active IP Right Cessation
- 2001-01-10 ES ES01890007T patent/ES2291291T3/es not_active Expired - Lifetime
- 2001-01-10 DE DE50112906T patent/DE50112906D1/de not_active Expired - Lifetime
- 2001-01-10 EP EP01890007A patent/EP1223597B1/de not_active Expired - Lifetime
-
2002
- 2002-01-03 US US10/037,253 patent/US20020089406A1/en not_active Abandoned
-
2003
- 2003-03-04 US US10/379,172 patent/US6724294B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225490A2 (de) * | 1985-11-14 | 1987-06-16 | E.G.O. Elektro-Geräte Blanc u. Fischer | Temperaturbegrenzer |
EP0279368A2 (de) * | 1987-02-19 | 1988-08-24 | E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG | Temperaturbegrenzer |
US5627507A (en) * | 1993-12-03 | 1997-05-06 | Electrovac, Fabrikation Elektronischer Spezialartikel Gesellschaft M.B.H. | Temperature control device with a spring-biased stem and a switch spring of bridge-like configuration |
AT404776B (de) * | 1997-09-03 | 1999-02-25 | Electrovac | Vorrichtung zur heissanzeige |
EP0901310A2 (de) * | 1997-09-03 | 1999-03-10 | Electrovac, Fabrikation Elektrotechnischer Spezialartikel Gesellschaft M.B.H. | Vorrichtung zur Heissanzeige |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006037712A1 (de) * | 2006-08-08 | 2008-02-14 | E.G.O. Elektro-Gerätebau GmbH | Schalteinrichtung für eine Heizeinrichtung |
WO2008099134A1 (en) * | 2007-02-13 | 2008-08-21 | Ceramaspeed Limited | Temperature sensor for radiant electric heaters |
Also Published As
Publication number | Publication date |
---|---|
ATE371256T1 (de) | 2007-09-15 |
US6724294B2 (en) | 2004-04-20 |
ES2291291T3 (es) | 2008-03-01 |
EP1223597B1 (de) | 2007-08-22 |
DE50112906D1 (de) | 2007-10-04 |
US20030146818A1 (en) | 2003-08-07 |
US20020089406A1 (en) | 2002-07-11 |
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