EP0544244B1 - Temperaturerfassungs-Gerät - Google Patents

Temperaturerfassungs-Gerät Download PDF

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Publication number
EP0544244B1
EP0544244B1 EP92120039A EP92120039A EP0544244B1 EP 0544244 B1 EP0544244 B1 EP 0544244B1 EP 92120039 A EP92120039 A EP 92120039A EP 92120039 A EP92120039 A EP 92120039A EP 0544244 B1 EP0544244 B1 EP 0544244B1
Authority
EP
European Patent Office
Prior art keywords
terminal
detector
base
plane
heating
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
Application number
EP92120039A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0544244A3 (el
EP0544244A2 (de
Inventor
Heinz Petri
Siegfried Mannuss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP0544244A2 publication Critical patent/EP0544244A2/de
Publication of EP0544244A3 publication Critical patent/EP0544244A3/xx
Application granted granted Critical
Publication of EP0544244B1 publication Critical patent/EP0544244B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 temperature detection device according to the preamble of claim 1. It can be used for temperature detection with a single or more control elements, such as temperature sensors. Such devices are e.g. used for heating devices or the like used in households, which have electrical connecting parts for connection to device lines for their electrical power supply. Warmers can e.g. Heating units, such as radiant heating units for hobs, ovens or other.
  • the device expediently has, as an enlarged device head, one or more device bases made of electrically and / or thermally insulating material, e.g. Hard ceramic, which forms at least two base sections and carries one or more control members in the form of a rod protruding and / or encapsulated or recessed over its outer surface within its outer surfaces.
  • the device base can, for example in the case of a thermal expansion fluid and therefore hydraulically working temperature sensor only this, but not the associated switch and / or, for example in the case of a mechanically working temperature sensor, additionally carry at least one switch actuated by this and e.g. to manually adjustable temperature control and / or for temperature limitation or as overheating protection for the heating device, of which part or all of the power is then automatically switched off when an adjusted limit temperature is reached and is automatically switched on again when the temperature falls below a corresponding lower limit temperature.
  • a mechanical temperature sensor for example, can be a bimetal sensor and / or an expansion rod sensor with two rod bodies made of materials with different thermal expansion coefficients and extending over a common longitudinal region. The rod bodies are fixed in the area of a longitudinal section against relative longitudinal movements and form control surfaces in a longitudinal area distant therefrom which, in the event of thermal changes, execute longitudinal movements against one another, from which the desired actuation or the associated actuating force is derived.
  • the device with the device base can be attached to an outside, for example an outer circumference, of the heating device in such a way that the temperature sensor is exposed to the heating effect of at least one heating resistor or another consumer of the heating device or in a corresponding one Boiler room protrudes.
  • an additional connector with an insulating body made of the aforementioned pressure-resistant insulating material can then be attached to the heating device, which has one or more connecting elements for the electrically conductive connection, each with at least one heating resistor.
  • the connection is made via a conductive intermediate part fastened to the heating resistor or without an intermediate part by directly fastening the heating resistor to the connecting element.
  • the heating resistor can be formed, for example, by a wire coil, a thick-film resistor or the like.
  • connection elements over outside the Connecting base lying device base connected with connecting members for the device lines, so there is a relatively complex training and assembly. This is also the case if the device base contains at least one circuit breaker which is connected with lines lying outside the heating device, the device base and the connecting piece to an associated connecting element of the connecting piece and to at least one heating resistor in the manner described.
  • EP-A-0 225 490 has also made known a temperature detection device of the type mentioned.
  • an engagement surface of the device base can rest on this underside and connecting conductors can be guided outside of this engagement surface adjacent to exposed outer sides of the device base to the heating resistors.
  • This training is particularly suitable for hotplates, and a separate connector is used here as an insulating body in the bottom, the connecting conductors are relatively far outside the base and must be secured with the separate insulating bodies.
  • a temperature monitor to be arranged on an electric motor which passes through a circuit board for the stator of the motor with tongue-shaped connecting elements and is electrically contacted with the conductor tracks by soldering.
  • the invention has for its object to provide a temperature detection device by which disadvantages of known designs and the type described are avoided and which ensures a very secure electrical connection of the heating device to device lines, in particular with a simple construction.
  • the device base has at least one connection element for the electrical connection to at least one connection part of the heating device so that at the Heating device operationally arranged device base, this connection element or the associated connecting conductor, except from a limited area, is not easily accessible either from the other outside of the device base or from the other outside of the heating device.
  • the device base also carries one or more connecting elements or connecting conductors which, apart from the associated connecting element, can essentially only be accessible in the area of a corner zone of the end face or engagement surface of the device base and thus from the area in which the electrically conductive connection with the heating resistor is to be established. Possibly.
  • the entire connecting conductor with its connecting element could be guided completely encapsulated from the inside of the device base to the inside of the heating device, without a separate insulating sheath, a connecting piece to be mounted separately from the device base or spaced adjacent to it being unnecessary.
  • Both the connector and the device base can be attached with a common attachment to one and the same location of the heating device, whereby the space requirement can be significantly reduced.
  • the rigid operational connection between the device base and this approach can be achieved in a particularly simple manner by means of a common one-piece design, so that the rigid position connection is also provided before installation in the heating device is.
  • the approach can form a substantially completely recessed base section engaging in the heating device, while the rest of the device base is expediently freely located on the outside of the heating device and is therefore accessible for cooling good ventilation.
  • the approach and / or the respective connection element expediently also occupies a free position.
  • the temperature sensor and one or all of the connection elements required for connecting the heating device are located in the area of the same base section.
  • at least one connection element can lie completely inside the outer contour of the end face or that of the rest of the base body or outside.
  • the projection can form a projection which is narrower, at least laterally protruding, than at least a subsequent section of the rest of the base body.
  • the approach can also be suitable for securing the device base against tipping about axes lying transversely and / or parallel to the engagement side relative to the supporting body.
  • the engagement side can form an almost continuous or only slightly set back and exposed intermediate section of an inner surface of the heating device, which delimits the heated space on the outer circumference, for example in the form of an inner peripheral surface.
  • At least one connector can be assembled instead of transversely approximately parallel to the heating plane for assembly with the heating device, which considerably simplifies the assembly and the formation of the insulating body of the connecting piece, because it does not require any plug-in grooves or other relatively complicated shapes for connection to the heating device .
  • the connector and the temperature sensing device can be assembled together on the heater in a single operation.
  • the device base advantageously has approximately at right angles to each other outer boundary surfaces, wherein it expediently forms a flat block or a flat housing, the thickness of which is smaller than one or both of its other edge dimensions.
  • One or both of the larger outer surfaces that limit the thickness and are located transversely to the end face are expediently each formed as a mounting side, in that when the appliance base is assembled, the ones to be attached to it, e.g. electrically conductive components made of metal or the like are joined together from and transversely to this mounting side with the device base.
  • the base expediently has corresponding recesses on this side for receiving the respective component completely recessed.
  • One of these mounting sides is advantageously provided in the installed state of the temperature detection device as the side which is approximately parallel to the heating plane, facing it and is at least a gap apart from it, from this side preferably the larger number of components than from the other Side mounted.
  • This mounting side which in the operating state can also form the approximately horizontal upper side of the device base, expediently extends to the mounting recesses which may be provided and penetrate them continuously or even over the entire device base and the connector.
  • all areas can be closed with a common, hood-shaped and / or leaf spring-like flat and in particular one-piece cover that is less than one millimeter thick.
  • connection elements and temperature sensors are expediently next to one another and / or parallel to one another, but the control member closer to the cover side than at least one connection element and / or at least one connection element further away from the Cover side can lie as at least one further connection element.
  • At least two or all of the connecting elements can, however, also lie in a common plane which is approximately parallel to the cover side and / or have flat cross sections which are essentially continuous over their length and lie parallel to this cover side.
  • the connecting elements are advantageously resilient by means of suitable articulation zones transversely to the heating plane or to the cover side and / or by permanent bending deformation, so that they can be brought very easily into direct contact with the associated end sections of the heating resistors or intermediate conductors.
  • the end section of the heating resistor which is in one piece at least over several centimeters, can also directly form the associated connecting part without an intermediate conductor.
  • the connecting elements are attached to this by welding or the like. Undetachable or adhesive and conductive.
  • a connecting conductor leads from the respective connecting element via a switch or without a switch to the associated connecting element provided for the operation of the heating resistors.
  • all the connection elements are freely projecting or accessible on the same connection side of the device base.
  • connection side is provided transversely to the end face and / or to the cover side and is formed by a narrow edge of the device base, with all connection elements, connecting conductors and / or connection elements expediently completely between and at a distance from the levels of the cover side and the side of the device base or the side remote from it Heater. This advantageously also applies to the control element, the switch or switches or all other components attached to the device base.
  • One or more temperature detection devices can form a self-contained structural unit with the heating device, which is to be attached to a suitable overall device or to a glass ceramic plate defining the heating plane.
  • the respective device base can be connected to the supporting body essentially without play by tensioning, latching and / or at least one snap connection.
  • at least one fastening and / or latching or snap member is formed in one piece from a base body made of sheet metal or the like of the supporting body by cutting and / or bending, which is in a corresponding counter member of the device base or a metallic one fastened to it Holder intervenes.
  • separate fastening elements such as fastening bolts, welded connections and the like, can be dispensed with completely.
  • connection element or several connection elements are formed by legs of a connection body.
  • This can be formed as a stamped and bent part made of material of approximately the same thickness as the connecting elements, connecting conductors and / or connecting tongues, each of which, if appropriate are formed in one piece with a connecting conductor.
  • the connecting body has a fastening leg which is expediently angled and / or directed away from the latter and which lies essentially congruently and over a large area on a surface of the associated connecting tongue which is parallel to and / or faces the top side, and with this is adhesively and permanently attached by welding or the like.
  • the connecting tongue is expediently designed as a connecting plug or flat tab so that, if the connecting body is not fastened to it, it is suitable, like all other connecting members, for an easily detachable plug connection with a mating connector of a device line.
  • a particularly advantageous fastening of the device base or the connection piece on the heating device is obtained if the plug-in, snap-in and / or snap connection is provided directly between a housing cover of the device base or the insulating body of the connection piece and a component such as the sheet metal shell of the support body .
  • the lid can be made in one piece with an associated fastening member, e.g. a plug opening.
  • This connection engages when the sensor device or the connection piece is transferred to the heating device in its operating position.
  • the cover is then secured in position both with respect to the device base or connection piece and with respect to the heating device.
  • the base of the device or the connecting piece can also be secured against the heating device in addition or only by this connection against pulling apart against the direction of assembly and against lifting off the cover, and without a bolt between the base and cover.
  • the cover can be at a distance from this connection with respect to the device base or connector by engagement with its edge in a corresponding base recess and / or be additionally centered by a pivotable mounting around an articulated connection.
  • the cover then expediently penetrates the associated outer surface of the heating device and projects into the heating device with an end that closes the attachment, for example, so that the snap connection mentioned can be offset inwards relative to this outer surface.
  • the respective temperature sensor can also work according to another principle instead of or in addition to the principle of thermal material expansion and preferably has fixed sensing elements which exert the mechanical switching force.
  • the sensor part transmitting the switching force can be under pressure or tension during operation or be the outer tube or the inner rod, various designs according to DE-OSen 35 40 414, 37 05 260 and 39 13 289 are conceivable, due to further reasons Features, effects and advantages are referenced for the purpose of inclusion in the present invention. The same also applies to the adjustment of the sensor, which can be designed in accordance with German patent application P 40 92 351.3.
  • the temperature detection device 1 has an extended device head 2 and, as a control element, a rod-shaped thin, continuously cylindrical temperature sensor 3.
  • the control member lies in a longitudinal view at a distance from and within the outer contour of the device head 2 and projects freely over an outside of the device head 2 with most of its length.
  • the device 1 is used for attachment to a heating device 4, which here is a radiant heating unit.
  • the heating device 4 has a flat-shell-shaped, multi-part supporting body 5 with a shell-shaped insulating body 6, a plate-shaped insulating body 7 and a protective or supporting shell 8 made of sheet metal or the like as supporting reinforcement.
  • the insulating body 7 is essentially completely covering the bottom of the support shell 8 and between the latter and the insulating body 6 such that the insulating body 7 is supported against the bottom essentially only in the region of an outer ring zone.
  • the insulating body 6 has in its area one over its insulating base 11 to the open shell side protruding insulating edge 9. Within its inner circumference, the top of the insulating base 11 is essentially exposed and the outer circumference lies against the inner circumference of the approximately cylindrical shell shell 12 of the support shell 8.
  • the insulating base 11 and the insulating edge 9 are formed in one piece from one another from a compressed, electrical and thermal insulating material.
  • This contains ceramic fibers and is mechanically inherently stable as a molded body, but not pressure-resistant.
  • the insulating body 7, which is better thermally insulating can consist of a compressed bulk material of lower strength.
  • the corresponding end face forms a contact surface lying in a contact and heating plane 10, with which the heating device 4 resiliently against the back of a translucent plate or one receiving it Press the support profile so that the shell space is essentially sealed from the outside.
  • the top and top sides are to be understood as the sides facing the open shell side and the heating plane 10. However, these can also assume an overhead, an upright or an inclined operating position.
  • a corresponding number of heating resistors 13 and 13a are arranged in a single or two or more separately switchable heating circuits in concentric spiral turns extending from the insulating edge 9 to a central region.
  • these can be electrical thick-film resistors, according to FIG. 2 wire coils, metallic braids, light bulbs in the manner of halogen bulbs or the like and a mixture of such different heating resistors.
  • the temperature sensor 3 is essentially contact-free in the room and at a distance from and between the heating resistors 13 and the heating plane 10 approximately parallel to the approximately flat insulating floor 11.
  • the device head 2 lies with most of its extension parallel to the temperature sensor 3 freely on the outside of the heating device 4, namely in connection to the outer periphery of the support body 5, the device head 2 between and at a distance from both the heating plane 10 and the bottom of the heating device 4 or support body 5 facing away therefrom, so that it only over the jacket surface of the heating device 4 stands out.
  • the temperature sensor 3 or part of the device head 2 passes through the shell jacket 12 and the insulating edge 9, over the inner circumference of which the temperature sensor 3 protrudes across the heating resistors 13.
  • the temperature sensor 3 is heated by the direct radiation emitted by the heating resistors 13, the retroreflection of the plate or a cooking vessel placed on it, and the air temperature within the essentially closed equipment compartment, so that the temperature sensor always assumes a temperature which is in the region of the highest , temperature occurring due to the operation of the heating device 4 and is at least as high as the highest temperature of the glass ceramic plate in the area of the heating device 4.
  • the temperature sensor 3 has two reference bodies which extend essentially over its length and have different coefficients of thermal expansion. Of these bodies, one can be made of a mineral or ceramic material with the lowest expansion coefficient and one consist of a metallic material, such as steel, with a relatively high coefficient of expansion.
  • the reference bodies are formed here by an outer tube 14 made of quartz glass and an inner rod 15 made of metal inserted therein with radial play, both of which have continuous cross-sections as strand sections over their entire length and do not require any further post-processing after being cut to length from a profile rod.
  • the outer tube 14 and the inner rod 15 are fixed in relation to one another in their longitudinal direction by an adjustment 16.
  • This has an abutment 18, which abuts the associated end face of the outer tube 14, has approximately the same outer width and an adjusting member 17, which is inserted in its central bore and is free of bolts.
  • the outwardly protruding adjusting member 17 initially engages in the abutment 18 essentially without radial play, but longitudinally displaceable, and after the adjustment is non-detachably connected to the abutment 18 by an adhesive or welded connection.
  • the inner end face of the adjusting member 17 lying inside the outer tube 14 then forms a pressure contact surface for the associated outer end face of the inner rod 15.
  • the outer surfaces of the device head 2 are essentially formed by a device base 19 made of pressure-resistant electrical insulating material, such as hard ceramic.
  • the inner ends of the outer tube 14 and the inner rod 15 lying at or within the device base 19 form reference or control surfaces which, due to temperature changes in the temperature sensor 3, perform longitudinal movements relative to one another, and this relative movement serves to derive a corresponding actuation.
  • the inner end of the inner rod 15 projects beyond that of the outer tube 14, the end face of which a shoulder surface of the device base 19 rests biased under spring force.
  • the inner end of the inner rod 15 carries, for example by means of a threaded connection, an extended collar, the inner end surface of which forms the associated control surface 27.
  • the inner end of the inner rod 15 acts on a rod-shaped actuating member 26 made of electrical insulating material or the like, which is displaceably mounted with it within the device base 19.
  • the device base 19 carries two in the longitudinal direction of the temperature sensor 3, one behind the other and each essentially in a flat switch 24, 25 arranged in the form of snap-action switches arranged transversely to the temperature sensor 3 main plane.
  • a power switch 24 for directly switching the heating resistors 13
  • a signal switch 25 for controlling a display device, such as a hot display.
  • control surface 27 acts directly on a contact or snap spring of the switch 24 in the sense of a positively controlled contact opening.
  • a corresponding control surface provided on the actuator 23 also acts directly on such a spring of the switch 25 in the sense of releasing this switch for automatically resilient overtravel into its closed position in the case of such a longitudinal expansion.
  • the adjustment 16 is provided for the switch 25, while the adjustment 28 for the switch 24 is accessible from the side of the device head 2 remote from the temperature sensor 3. With the adjusting member 29 of this adjustment 28, the control surface 27 can be adjusted relative to the rest of the inner rod 15.
  • the device base 19 forms a connection piece 20 laterally adjacent to the temperature sensor 3, which is provided as an intermediate piece for the electrically conductive connection of the heating resistors 13 and the device lines (not shown).
  • the insulating body of this connector 20 is formed by an extension 21 of the device base 19, and this extension 21 goes through on both sides of the temperature sensor 3 essentially so that the temperature sensor 3 approximately in the middle of its width and / or height or that of the rest of the device base 19 lies.
  • the attachment 21 encapsulates a holder 22 for the temperature sensor 3, while in the area of the connecting piece 20 it receives connecting elements 23 for the electrically conductive connection with the heating resistors 13.
  • Three parallel connection elements 23, of which at least one could also lie within the extension 21, are parallel to one another and to the temperature sensor 3 via the end face or engagement side 31 of the extension 21 penetrated by it, which according to FIG. Fig. 2 is essentially continuous up to the circumferential surfaces of the projection 21 without a shoulder or flat.
  • At the rear end project over both side surfaces of the extension 21 laterally web-shaped flanges 33 which, like the extension 21, are formed in one piece with the rest of the base 19 made of insulating material, such as hard ceramic, and also protrude laterally over the rest of the base 19.
  • the device base 19 From the engagement side 31 to the front, approximately level end faces of the flanges 33, the device base 19 forms a front base section 30 and from this point to its rear end a rear base section 32.
  • the extension 21 has a substantial width smaller length and forms a plug-in projection protruding freely in the same direction as the temperature sensor 3, the outer surfaces of which are approximately parallel to the plug-in direction and are at least partially essentially smooth.
  • the base section 32 or the remaining base part lying behind the flanges 33 can protrude laterally on one or both sides, on the underside and / or on the top.
  • the device 1 With the extension 21, the device 1 is inserted into engagement openings 34, 35 of the heating device 4, namely the insulating edge 9 and the shell edge 12 approximately in the longitudinal direction of the temperature sensor 3, radially to the heating device 4 or parallel to the heating plane 10.
  • the projection 21 can have a lateral gap distance from at least one engagement opening or, according to FIG. 2, can connect to the associated boundaries of one or both engagement openings essentially without a gap.
  • the approach 21 can lie with its flat underside on the insulating base 11, the insulating body 7 and / or a recessed and over the top of the insulating base 11 higher lying shoulder surface of the insulating edge 9, so that a very good centering and support of the device 1 against each other the heater 4 results.
  • the extension 21 or the base body 19 can close the heating device 4 in the area of the engagement openings 34, 35 essentially tightly, so that a sealed, heated space is created after the assembly of the entire structural unit on the plate.
  • the front end faces of the flanges 33 form abutment surfaces 36, which abut on both sides laterally on the outer circumference of the shell edge 12. Accordingly, the front end face of the base section 32, which lies in the plane of the contact surfaces 36, can adjoin the lower end Limitation of the engagement opening 35 and / or subsequently bear against its upper boundary in a closing manner on the outer circumference of the shell edge 12, so that a frame-shaped closed contact results around the engagement opening 35.
  • These contact surfaces 36 are expediently clamped against the peripheral surface.
  • connection elements 23 and the temperature sensor 3 are nevertheless arranged together with the device head 2 in a resilient manner with respect to the electrical heating, because the device head 2 due to its essentially play-free connection with the shell edge 12 and / or the parts of the insulating body adjoining the extension 21 forms a spring arrangement.
  • These allow, in particular, elastic tilting movements about axes parallel to the heating plane 10.
  • the temperature sensor 3 can in turn also be moved a small amount in all directions transversely to its central axis with respect to the device base 19 and can be resiliently returned to its starting position by the holder 22, so that it is damped against strong impact loads.
  • the straight temperature sensor 3 lies in a plane 37 approximately parallel to the heating plane 10 and somewhat further away from the heating plane 10 than the cover side 38 of the appliance base 19, which is also parallel thereto.
  • the connecting elements 23 emerge from the engagement side 31 in at least one plane 39.
  • This connection level 39 is further away from the heating level 10 than the level 37, but lies at a short distance above the insulating base 11 and the heating resistors 13. All the connection elements 23 lie on one side of the axial level 40 of the straight temperature sensor 3, which is perpendicular to the heating level 10, while the bracket 22 is substantially on the other side.
  • connection elements 23 are formed in the region of the connection elements 23 and adjacent to the inner circumference of the insulating edge 9 as connection parts 41 directed against the latter. These are made in one piece with at least half or a whole spiral arc of the respective heating resistor 13 and are used for direct connection to the associated connection element 23.
  • the connecting parts 41 like the other heating resistors 13, are anchored to their free ends with respect to the insulating base 11 by fastening over the entire surface, while, according to FIG. 2, the connecting parts 41a are formed by rectilinear end sections of the wire coils and therefore themselves to be brought together the connecting parts 23 can be moved relative to these.
  • the device base 19 has in its top side 38 a larger number of recesses in which the temperature sensor 3, the switches 24, 25, two closest to the temperature sensor 3 connecting elements 23 and other components such as connecting members, tension springs or the like 38 are inserted in an assembly direction arrow 45.
  • the holder 22 is also inserted in such a way that it is held in a self-locking manner by a plug connection 42 which lies on the side of the temperature sensor 3 remote from the connector 20.
  • Each connecting element 23 merges in one piece and essentially with the same cross sections into a connecting conductor 46 located within the base sections 30, 32, each of which lies in a separate groove 47 in the cover side 38.
  • the connecting conductor 46 lies essentially over its entire length in the plane 39 on the groove bottom.
  • the connecting conductor 46 closer to the temperature sensor 3 merges in one piece into an angled contact carrier 48 for the switch 24 closer to the engagement side 31.
  • the adjacent connecting conductor 46 merges in one piece into a connecting member 49 which projects approximately parallel to the cover side 38 and transversely to the temperature sensor 3 from a first connecting side 50 of the device base 19.
  • these connecting elements, connecting conductors and contact or connecting members are located in the area of a recessed corner zone which is delimited on one leg by the temperature sensor 3 and on the other leg by the switch 24.
  • the connectors 49, 51 can e.g. as tabs, in a common plane.
  • the connection side 50 lies at an angle to the engagement side 31 and to the cover side 38 in connection to the rear side of the associated flange 33.
  • the third, the most distant from the temperature sensor 3 and the shortest connecting element 23 is inserted from the lower side 44 facing away from the top side 38 into the device base 19, including its connecting conductor 52 also in a corresponding groove-shaped recess. According to FIG. 2, its connecting member 53 projects freely between the connecting members 49, 51 on the connecting side 50.
  • this connecting conductor 52 can rise from the connecting member 53 within the device base 19 by bending to the level of the associated connecting element 23 and thus cannot lie in a single plane like the other connecting conductors.
  • the device base 19 forms a second connection side 54 with freely projecting connection members 55 for the switch 25. These tabs can lie in the plane of the connection members 49, 51 and are like these between the levels of the rear end of the base and the back of the flanges 33 and on the other hand the top side 38 and the underside 44 are provided.
  • the device 1 After the device 1 has been plugged into the heating device 4, it is only necessary to secure it against being pulled off in the opposite direction of insertion and, if necessary, for bracing against the support body 5 or the support shell 8 without play.
  • only two fastening elements 56 are required on both sides of the engagement opening 34 and 35, each of which lies between the top side 38 and the underside 44 approximately in the middle of the height or thickness of the base section 30 or 32.
  • At least one or all of the fastening members 56 are formed in one piece with the shell jacket 12 and protrude from the outer circumference thereof approximately at right angles with a shaft section which has a cabinet tab at the free end as head 58.
  • the head 58 can be provided in a plane lying transversely to the cover side 38 or, according to FIG. 4, in a plane lying approximately parallel to it.
  • an engagement opening 57 for the shaft of the fastening member 56 has a slot-like opening that is delimited over the entire circumference. This is closely matched to the head 58 and through it the head 58 runs when the device 1 is inserted into the engagement openings 34, 35 through it. Thereafter, the head 58 is rotated about the shaft axis and thereby braced against the back of the flange 33, so that the device 1 with the contact surfaces 36 is pulled against the outer circumference of the shell jacket 12.
  • the engagement side 31, which in the manner of an end wall can have relatively closely adapted passage openings for the temperature sensor 3 and / or the respective connection element 23 and thereby forms a thermal shield, then delimits the inner circumference of the heated space in the region of the engagement opening 34 as an almost continuously connecting intermediate section .
  • At least one or all of the fastening elements could instead also be snap-in elements which automatically snap into a locking position when the device 1 is plugged in, since the device 1 is already positively locked against movements in all other directions by the engagement of the projection 21 and only secured with little movement is. This is particularly the case if the parts made of insulating material bear with prestress on the associated outer surfaces of the extension 21 in such a way that they are resiliently compressed in this area and can therefore also fit particularly tightly.
  • a leaf-shaped flat cover 59 which extends from the rear base end to the extension 21 and approximately to the level of the engagement side 31 and over which the flanges 33 project laterally.
  • the plastic cover 59 has the bending spring properties of a leaf spring and has its entire length essentially constant width, so that it protrudes laterally in the area of the projection 21 on both sides.
  • this cover 59 can be included in a fuse 60 for fixing the position of the device 1 relative to the heating device 4.
  • the cover 59 is brought into direct engagement with the shell edge 12 via one or more snap connections 61 which are approximately symmetrical to the center of its width or to the axial plane 40 and by engagement in slots 62.
  • the lid 59 is spaced apart from or from the bowl edge 12, e.g. at a short distance from its and the rear end of the device base 19, by means of a centering 63 parallel and / or at right angles to its plane relative to the device base 19.
  • the centering 63 can be a recessed receptacle of the cover 59 in the device base 19, a plug connection made in each case in one piece with the device base 19 and the cover 59, and / or a connection with a separate fastening member, e.g. a rivet bolt.
  • the bolt engages in aligned openings of the device base 19 and the cover 59, if necessary, in such a way that the cover 59 can be pivoted in its plane relative to the device base 19 between a closed and open position.
  • the snap connection 61 has a snap member 64 which is formed in one piece with the support shell 8 and which, appropriately, protrudes in a web-like manner from the upper boundary of the engagement opening 35 to its opposite boundary.
  • the snap member 64 only needs to be assigned a closely adapted opening as a counter member or snap opening 65 in the cover 59.
  • the engagement opening 35 is continued their associated upper limit or in the region of the side edges of the cover 59 are widened by slots 62, into which the edges of the cover 59 projecting laterally beyond the shoulder 21 engage with a slight sliding fit.
  • the cover 59 is positively secured against movements transversely and parallel to its plane by the support body 5.
  • the edges of the cover 59 are guided into the engagement opening 35 in the slots 62 when the attachment 21 begins to engage.
  • the snap member 64 slides on the outside of the cover 59 in that the latter and / or the region of the shell edge 12 carrying the snap member 64 is pressed back in a resilient manner.
  • the snap member 64 automatically snaps into the snap opening 65.
  • the base section 32 is secured against tilting movements away from the heating plane 10.
  • the cover 59 lies at a short distance from the cover side of the attachment 21, while according to FIG. 5 it also closes the attachment 21 on the cover side.
  • Snap members 64 can also be offset laterally in relation to one another and / or by angling relative to the peripheral surfaces of the shell edge 12 inwards or outwards as shown in FIG. 1.
  • both the engagement opening 34 and the engagement opening 35 to the heating plane 10 are open over their full width.
  • 4 is slot-shaped transversely to the heating plane 10, but its width is closely adapted to the outer circumference of the temperature sensor 3, so that it can carry out small movements unhindered transversely to the heating plane 10.
  • the engagement opening 34 can also be completely closed over its circumference according to FIG. 5, especially if the insulating edge 9b is formed by a component which is separate from the insulating base 11b and which stands up over the entire surface on the upper side of the insulating base 11b.
  • the insulating edge 9b can form an end wall 66 of a pocket following the engagement side 31.
  • connection elements 23b are angled in two opposite directions so that two joints are formed which are approximately parallel to one another and to the level of the heating resistors 13. These allow the free connection end of the respective connection element 23b to be resiliently adjusted transversely to the insulating base 11b without changing its position parallel to the connection plane.
  • the outer winding ends of the heating resistors 13, 13a, 13b to be connected to the connecting elements 23 can also be passed transversely to the temperature sensor 3 between the latter and the insulating base 11 or penetrate the axial plane 40.
  • the bracket 22 and the connector 20 are arranged reversed on both sides of the temperature sensor 3 with respect to the design shown, or if the direction of the turns of the heating resistors 13, 13a is reversed with respect to the direction shown. As a result, the heating field would also be occupied with heating sections in front of the engagement side 31 of the device 1.
  • connection elements and connecting conductors can be formed as bare metal parts without a separate insulating jacket. They can also be electrically insulated exclusively by the base sections 30, 32 and the insulating supports of the heating device or protected against unwanted contact by the position in the area of the gap.
  • the individual metallic components fixed to the device base 19, in particular the connecting elements, connecting conductors and associated connecting members, can be secured in various ways with respect to the base body against relative movements essentially without play. It is particularly expedient if, according to FIGS. 6 and 7, the corresponding component is provided with a single or more angled bending or cabinet brackets 67. For their passage there is a plug-in opening in each device base 19c 68 provided. After inserting the component from one side 38c into the device base 19c, the part of this cabinet bracket 67 projecting beyond the other side 44c can be bent accordingly and the component can thereby be clamped against the associated mounting surface.
  • connection elements 23c have between the connection element 23c and the associated connection element 53c an intermediate section which is angled or inclined relative to them in view of the cover side 38c. Its bend can lie approximately in the middle of the length of the associated connecting conductor 46c.
  • the cabinet bracket 67 is suitably closer to the free end of the connector 53c than that of the connector 23c e.g. provided after the inner end of the connector 53c.
  • the connecting element 23c with the associated section of the connecting conductor 46c can be moved relatively easily transversely to the heating plane relative to the base 19c or can be lifted off from its contact surface.
  • At least one of the carrier webs of the switches 24, 25 can also be fastened with at least one of the tabs mentioned.
  • At least one of the components mentioned can also be attached to the device base 19d via an adhesive connection, which is expediently temperature-resistant or temperature-stable up to at least 200 ° C. or 300 or even 400 to 500 ° C.
  • the adhesive connection is expedient in such a way that it takes place by heating and / or pressure and subsequent cooling.
  • the temperature of the heating for example the melting temperature to produce the adhesive effect, can be above the maximum thermal load of the device 1.
  • a solder layer, a thin ceramic or glass layer or the like can be used as the connection layer separate from the device base 19d and from the component to be fastened. This is expediently first applied to the assembly surface by lamination or printing, after which the connection to the connection surface of the respective component is made.
  • the thickness of the connecting layer is expediently in the ⁇ m range, so that the connecting surface of the component can also partially bear directly against the mounting surface of the device base 19d or has only a gap distance from it which is of the order of magnitude mentioned.
  • the material of the connecting layer is expediently such that it can penetrate both into the pores of the mounting surface and those of the connecting surface and can thereby be anchored practically inextricably.
  • one to all the connecting members 49e, 51e, 53e according to FIGS. 1 to 11 are designed as support bases for one or more connecting bodies 70. Of these, the respective one expediently projects over the free end of the associated connecting member 51e.
  • the connecting body 70 which is expediently formed essentially from the same sheet material as the connecting members as a stamped and bent part, has a freely projecting, angled fastening leg 69. Its width is approximately the same as or smaller than the width of the associated connector 51e and the length can be of the order of this connector 51e.
  • the fastening leg 69 which is flat in cross-section, can be applied with one flat side essentially over the entire surface to the lower or upper flat side of the fastening member 51e and connected to it by welding.
  • the fastening leg 69 merges in the region of the free end of the connecting member 51e into a connecting leg 71 of the same width angled transversely to its plane. This can be directed away from the fastening side of the connecting member 51e or towards the cover side 38e. 11, it can also be angled toward the opposite side of the fastening member 51e or toward the underside 44e.
  • Leg 71 may also abut the end flank of link 51e for multiple alignment.
  • This connecting leg 71 merges in the region of its free end via at least one further bend, which is directed away from the device base 19e or the connecting side 50e, into at least one connecting member 72 which is freely located on the outside of the device base 19e.
  • This is advantageously formed by a flat tongue and lies in a plane which is provided transversely or at right angles to that of the connecting member 51e.
  • two approximately parallel connecting members 72 lie adjacent to one another transversely to their planes with a distance that is only slightly greater than their thickness.
  • the connecting members 72 according to FIG. 9 protrude freely against the plane of the underside 44e and according to FIG. 11 against the plane of the top side 38e.
  • the connector body 70 has only a single connector 72 which lies in a plane approximately parallel to the connector side 50e.
  • the connecting members 72 are approximately parallel to the connecting side 50e.
  • connection body 70 which are formed in one piece throughout, the direction of insertion to connect the mating connector of the device lines transversely to the direction of insertion of the connecting members 49e, 51e, 53e, the insertion direction of which is transverse to the connection side 50e.
  • the respective connection body 70 is also at a distance from and between the planes of the top side 38e and the underside 44e.
  • Figures 12 to 15 show a particularly advantageous embodiment, because a device 1f can be used here using simple components, which requires only very minor changes compared to the device according to DE-OS 39 13 289. Reference is made to this document to incorporate the features into the present invention.
  • the tools To transfer the device base shown there into the device base 19f, the tools only have to be modified so that the extension 21f is still attached and that receptacles for the connection elements 23f are also provided on the long side 38f and the underside 44f. 1, the inner rod 15 can be subjected to tension, in the embodiment according to FIG. 12 it can be subjected to pressure, whereby thermal compensation of the switching characteristics depending on the heating state of the device 1f or the device head 2f is possible in a much easier manner .
  • the circuit breaker 24f is further away from the end face 31f than the additional switch 25f.
  • the holder 22f for the temperature sensor 3f is formed by a plug-in connection 42f, but is braced with the fastening members 56f parallel to the temperature sensor 3f relative to the base 2f.
  • the plug-in body of the temperature sensor 3f formed by a U-shaped bracket and a plate connecting its legs, simultaneously forms the only connection between the device head 2f and the heating device 4f.
  • the approximately parallel to the end face 31f and sunk in this lying plate forms one leg of a two-leg angled holder 73, the other leg 74 on the underside of the bottom of the support shell 8f, z. B. with welding spots, is attached without play.
  • the plate leg lying approximately parallel to and at a distance from the shell casing 12f is braced with the fastening members 56f relative to the device base 19f, which are formed by the legs of the plug-in bracket.
  • Fastening members 56f can lie approximately in the plane 37 of the temperature sensor 3f and / or in contrast to the underside 44f, so that, for. B. four fastening members 56f are provided at the corners of an imaginary rectangle.
  • the heads 58f of the fastening members 56f lie in the gap between the end face 31f and the outer circumference of the shell casing 12f and at a short distance from this shell casing 12f.
  • connection piece 20f integrated without play with the device head 2f lies completely and at a distance outside the heating device 4f, extends at most to the end face 31f and is at a distance from the base side facing away from it. It is formed by a projection 21f made of hard ceramic or the like protruding transversely to the axial plane 40f on one side of the remaining base 19f, which is formed in one piece with the base 19f or the base portion 32f and forms the base portion 30f.
  • the base section 32f is provided for receiving the control parts and determines the associated width of the device base 19f which is perpendicular to the axial plane 40f and which is several times greater than the widening by the base section 30f.
  • the approach 21f can extend approximately from the top 38f to the bottom 44f and on the front be bounded by an approximately flat continuation of the end face 31f.
  • the device 1f is provided here for controlling only a single heating circuit, which is why only two connection elements 23f are required.
  • the projection 21f receives a connecting element 23f with the associated connecting member 49f essentially completely.
  • the other connection element 23f engages both in the base section 32f and in the base section 30f and is controlled via the circuit breaker 24f in that it is conductively connected to its fixed support for the movable snap contact.
  • the connecting element 23f which is directly connected to the connecting element 49f, is inserted into a groove-like recess 47f in the cover side 38f by a multiple of its sheet thickness, and the connecting element 49f is inserted recessed into a recess in the underside 44f facing away from it.
  • connection element 23f lies, in addition to the control element 3f, also at an acute angle to the connection element 49f such that these components overlap one another with their inner ends, but are separated from one another as separate components by insulating material of the extension 21f.
  • the connecting conductor 52f for these components is in this case another separate component, e.g. B. a rivet that penetrates an opening in the material of the projection 21f, the two components 23f, 49f clamped against opposite sides of the projection 21f and also creates the line connection between the components 23f, 49f.
  • the controlled connection element 23f is recessed in a corresponding recess in the underside 44f and its inner end coincides with a support plate 48f of the contact carrier in a view of the cover side 38f, so that these two areas, as described with reference to the connecting conductor 52f, can be attached with a separate connecting conductor 46f without play and can be conductively connected to one another.
  • connection elements 23f lie at a short distance from one another transversely to the cover side 38f on sides of the appliance base 19f which are remote from one another, the connection plane 39f being able to be understood as the middle plane between the planes of the two connection elements 23f.
  • the controlled connection element 23f which is closer to the underside 44f, expediently lies approximately in the plane of the connection elements 49f, 51f, 55f, from which the plane of the uncontrolled connection element 23f is at a distance which is substantially less than the height of the base body 19f or half or half is a quarter of it.
  • the two strip-shaped connecting elements 23f lie obliquely to the axial plane 40f or to the end face 31f and approximately parallel to one another, the two connecting conductors 46f, 52f or the connecting element 49f approximately in a common central or, respectively, perpendicular to the temperature sensor 3f Axial plane are provided.
  • connection areas formed by the free ends of the connection elements 23f lie at a short distance from the plane of the end face 31f.
  • the controlled connection element 23f emerges from the end face 31f and lies directly adjacent to it and offset inwards with respect to the plane of the end face of the extension 21f.
  • the uncontrolled connecting element 23f emerges from an inclined surface 36f which connects at an obtuse angle to the end face 31f and the end face of the extension 21f, from which the connecting member 49f emerges at approximately a right angle.
  • the uncontrolled connection area is offset to the outside relative to the plane of this end face, but does not project any further than the connection member 49f.
  • the distance between the two connection elements 23f is approximately in the order of their strip width, so that there is a very small distance between their connection areas.
  • the distance between the two connection areas from the plane of the end face 31f is approximately the same and their distance from the outer circumference of the heating device 4f is approximately in the order of magnitude of their width. Since the end face 31f and the inclined surface 36f delimit a gap with this outer circumference, the connection regions are accessible from the top side 38f, the underside 44f and the end surface of the extension 21f in order to connect them to the connection parts of the heating resistor 13f.
  • the connecting elements 49f, 51f are also freely accessible from these sides in order to connect the device lines.
  • the connecting member 49f protrudes approximately by the length of the extension 21f than the connecting member 51f, which is located in the recessed corner between the extension 21f and the rear end face of the base 19f at a short distance from the extension 21f and does not protrude further than this.
  • This connecting element 51f like the other connecting elements 49f, 55f, is recessed into the underside 44f and is conductively connected and fastened to the fixed contact of the switch 24f via a connecting conductor of the type described.
  • Two to all the connecting members 49f, 51f, 55f lie in a common plane, at a distance between the planes of the end faces 31f of the base 19f and in an approximately parallel connection or plug-in direction, if necessary, for a common plug.
  • connection areas the free end of the respective connection element 23f can be angled toward the cover side 48f, so that at least one end leg which is transverse to the cover side 38f is formed. If two end legs are provided next to one another and / or at an angle to one another, a receiving prism can be formed between them, in which the respective connecting part 41f can be used in a stop-limited manner both parallel to its longitudinal direction and transversely to the heating plane 10f or in the plug-in direction 43f such that it is then centered approximately parallel to the heating plane 10f against transverse movements.
  • connection part 41f can then be fixed in a conductive manner with respect to the connection region, in particular on its strip section which is approximately parallel to the heating plane 10f and is also exposed by a welded connection or the like.
  • the respective connection element as well as the respective connection element is set back in the working position at a distance both from the heating plane 10f and from the plane of the underside of the heating device 4f.
  • Fig. 12 shows two ways of forming the respective connection between a connection of the heating resistor 13f and a connection element 23f, both or all connection connections can also be formed the same.
  • the respective end portion of the heating resistor 13f is e.g. B. stiffened by a connector 75 in that it is tightly wrapped in tight turns around a protruding approximately parallel to the heating plane 10 leg 76 of the connector 75.
  • the connecting piece 75 forms an approximately U-shaped bracket 78, one bracket leg of which is formed by the leg 77 and the other bracket leg of which the leg 76 is angled outwards .
  • the connecting piece 75 can be anchored in position in the insulating base 11f by pressing or the like in such a way that the legs 76, 77 are essentially exposed.
  • the connecting part 41f can now be made in one piece at least with the subsequent heating section of the heating resistor 13f or formed with its closely adjacent turns or be an end portion of the associated resistance wire.
  • the end of the tightly laid windings can lead to leg 77, be fixed relative to it by approximately one to multiple wrapping, and then lead to the outer periphery of heating device 4f up to the connection area of connecting element 23f and be connected to it without further intermediate elements. It is also conceivable to completely dispense with a connecting piece 75 and to fix the outwardly directed end section of the resistance wire or the connecting part 41f only directly opposite the insulating body 6f.
  • the connecting part 41f can be sunk or pressed into the insulating base 11f and / or the insulating edge 9f essentially without play and thereby be encased by an insulation which secures it in a contact-free manner with respect to the shell casing 12f.
  • the insulating edge 9f can be placed as a separate component on the essentially continuously flat upper side of the insulating base 11f, so that the connecting part 41f is then fixed between the annular lower end face of the insulating edge 9f and the upper side of the insulating base 11f.
  • the shell jacket 12f has a passage opening for the passage of the respective connection part 41f, which is considerably wider than the connection part 41f, the connection part 41f being centered in a fixed position relative to this passage opening by the insulating body 6f, so that the insulating body 6f forms the passage insulation directly and not one separate insulating body is required.
  • these two components are positively fixed to one another via securing members 79.
  • These security links 79 can e.g. B. from the shell jacket 12f cut-free sheet metal tabs, which are pressed into the outer circumference of the insulating body 6f after the insertion of the insulating body 6f with bending so that they form depressions in which they engage in a form-fitting manner.
  • Several securing members 79 are distributed over the entire circumference.
  • the second connecting part 41f according to FIG. 12 is formed by a separate, linear wire rod, the cross sections of which are smaller than that of the connecting piece 75, which is also bent from wire, and larger than that of the heating resistor 13f.
  • This separate connecting part 41f is attached tangentially to the circumference of the leg 77 immediately adjacent to the top of the insulating base 11f, passes through the insulating edge 9f and the shell jacket 12f and is connected at its outer end to the associated connecting element 23f.
  • This connecting part 41f can also be secured in position in the manner described with respect to the insulating body 6f.
  • the connecting part 41f can also be connected directly to the heating resistor 13f without a connecting piece 75 and, for this purpose, form an angled leg which has the functions described with reference to the leg 76.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Resistance Heating (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Resistance Heating (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Thermally Actuated Switches (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
EP92120039A 1991-11-26 1992-11-25 Temperaturerfassungs-Gerät Expired - Lifetime EP0544244B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4138817A DE4138817A1 (de) 1991-11-26 1991-11-26 Temperaturerfassungs-geraet
DE4138817 1991-11-26

Publications (3)

Publication Number Publication Date
EP0544244A2 EP0544244A2 (de) 1993-06-02
EP0544244A3 EP0544244A3 (el) 1994-01-12
EP0544244B1 true EP0544244B1 (de) 1997-07-16

Family

ID=6445597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120039A Expired - Lifetime EP0544244B1 (de) 1991-11-26 1992-11-25 Temperaturerfassungs-Gerät

Country Status (9)

Country Link
US (1) US5420398A (el)
EP (1) EP0544244B1 (el)
AT (1) ATE155608T1 (el)
AU (1) AU659249B2 (el)
DE (2) DE4138817A1 (el)
ES (1) ES2104799T3 (el)
GR (1) GR3025076T3 (el)
HR (1) HRP921316B1 (el)
TR (1) TR26583A (el)

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DE19846512A1 (de) * 1998-10-09 2000-04-13 Ego Elektro Geraetebau Gmbh Einbau eines Gehäuses einer Schalteinrichtung
US6267602B1 (en) * 1999-11-02 2001-07-31 Kinetic Group L.L.C. Detachable power supply apparatus
US6250931B1 (en) * 1999-11-02 2001-06-26 Kinetic Group L.L.C. Detachable power supply apparatus
DE10006954A1 (de) * 2000-02-16 2001-10-11 Bsh Bosch Siemens Hausgeraete Kochfeld mit Temperaturfühler
GB2360683B (en) * 2000-03-23 2004-11-10 Ceramaspeed Ltd Radiant electric heater
GB2372190B (en) * 2000-12-16 2005-02-09 Ceramaspeed Ltd Cooking appliance with radiant electric heater
ATE371256T1 (de) * 2001-01-10 2007-09-15 Electrovac Temperaturbegrenzer
AT409680B (de) * 2001-04-17 2002-10-25 Electrovac Temperaturbegrenzer
US6879239B2 (en) * 2002-04-08 2005-04-12 Woodlane Environmental Technology, Inc. Thermostat assembly
US6988897B2 (en) 2002-04-29 2006-01-24 Focus Products Group, Llc Detachable breakaway power supply source
US7041942B2 (en) * 2002-11-15 2006-05-09 Engineering Glass Products, Llc Heating plate assembly for a cooking appliance
GB0301167D0 (en) * 2003-01-18 2003-02-19 Ceramaspeed Ltd Temperature-limiting device
GB0301164D0 (en) * 2003-01-18 2003-02-19 Ceramaspeed Ltd Temperature-responsive device
DE502004000953D1 (de) * 2004-02-24 2006-08-24 Electrovac Temperaturfühler
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GB0717051D0 (en) * 2007-09-01 2007-10-17 Ceramaspeed Ltd Temperature sensor
DE102009038960A1 (de) * 2009-08-19 2011-02-24 E.G.O. Elektro-Gerätebau GmbH Temperaturfühler und Verfahren zur Justierung eines solchen Temperaturfühlers
US10145574B2 (en) * 2009-12-10 2018-12-04 Component Hardware Group, Inc. Vent port for a refrigerated cabinet
DE102018213625A1 (de) * 2018-08-13 2020-02-13 Siemens Aktiengesellschaft Schaltanlagentemperaturmessung
CN112781746A (zh) * 2019-11-07 2021-05-11 深圳市敏杰电子科技有限公司 一种底部温度传感器

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US4400679A (en) * 1981-09-21 1983-08-23 Therm-O-Disc, Incorporated Snap acting switch for thermostats
AT376540B (de) * 1983-01-05 1984-11-26 Electrovac Vorrichtung zur regelung bzw. begrenzung wenigstens eines temperaturwertes bzw. eines temperaturbereiches von strahlungs- bzw. kontaktheizkoerpern von elektrischen kochgeraeten
AT386714B (de) * 1983-07-07 1988-10-10 Electrovac Vorrichtung zur heissanzeige und zur regelung bzw. begrenzung der temperatur von strahlungsbzw. kontaktheizkoerpern von elektrischen kochgeraeten
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EP0410119B1 (de) * 1989-07-25 1995-10-18 Hofsäss, Ulrika Temperaturschalter mit Bimetall-Schaltwerk
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DE4029351A1 (de) * 1990-09-15 1992-03-19 Ego Elektro Blanc & Fischer Temperaturfuehler

Also Published As

Publication number Publication date
HRP921316A2 (en) 1994-10-31
EP0544244A3 (el) 1994-01-12
US5420398A (en) 1995-05-30
EP0544244A2 (de) 1993-06-02
TR26583A (tr) 1995-03-15
GR3025076T3 (en) 1998-01-30
DE4138817A1 (de) 1993-05-27
AU2960692A (en) 1993-06-17
AU659249B2 (en) 1995-05-11
HRP921316B1 (en) 1998-08-31
DE59208709D1 (de) 1997-08-21
ES2104799T3 (es) 1997-10-16
ATE155608T1 (de) 1997-08-15

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