EP0246255B1 - Thermo-rupteur a bilame - Google Patents

Thermo-rupteur a bilame Download PDF

Info

Publication number
EP0246255B1
EP0246255B1 EP86906334A EP86906334A EP0246255B1 EP 0246255 B1 EP0246255 B1 EP 0246255B1 EP 86906334 A EP86906334 A EP 86906334A EP 86906334 A EP86906334 A EP 86906334A EP 0246255 B1 EP0246255 B1 EP 0246255B1
Authority
EP
European Patent Office
Prior art keywords
bimetal
carrier
contact spring
hole
thermoswitch according
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
EP86906334A
Other languages
German (de)
English (en)
Other versions
EP0246255A1 (fr
EP0246255B2 (fr
Inventor
Manfred K. MÜLLER
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.)
Limitor AG
Original Assignee
Limitor AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6285332&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0246255(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Limitor AG filed Critical Limitor AG
Publication of EP0246255A1 publication Critical patent/EP0246255A1/fr
Publication of EP0246255B1 publication Critical patent/EP0246255B1/fr
Application granted granted Critical
Publication of EP0246255B2 publication Critical patent/EP0246255B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/002—Thermally-actuated switches combined with protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/01—Details
    • 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
    • H01H9/10—Adaptation for built-in fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/0258—Structural association of a fuse or a fuse holder with a bimetallic element

Definitions

  • the invention relates to a bimetal temperature switch with the features specified in the preamble of claim 1.
  • Such a switch is described in DE-29 16 516 A1. It is a temperature switch, which is arranged on a circuit board as a carrier. One or more heating resistors can be provided on the circuit board, with the help of which the thermal switch can also function as a relay or timing relay.
  • the known switch has the disadvantage that the circuit board tends to warp as a result of thermal stress, which means that the thermal switch cannot function properly, in particular its switching temperature can be changed.
  • a microminiature switch manufactured in thin film technology is known, which can be used instead of semiconductor switches in electronic circuits with a high integration density. These are switches which, like a semiconductor switch, are operated by a control current, but not by changes in the ambient temperature.
  • the current to be switched does not flow via a contact spring, which is attached at one end to the support and at the other end carries a contact piece which is movable by the action of the bimetal element, but via a contact bridge, which is connected to both ends of two fixed contacts lying on the substrate.
  • the contact bridge is at one end of an arm; this is attached to the substrate with its other end, but it is not a contact spring, but a solid strip of electrically insulating material, on the top of which there is a resistance element, to which a control current is supplied to actuate the switching bridge.
  • DE-A-1 465 674 already discloses a bimetallic switch with a carrier made of ceramic, which is a molded part with several recesses and bores for receiving screws for fastening a complex adjustment mechanism for the sound temperature.
  • US-A-2,860,208 discloses a thermal bimetallic switch in which the switch contacts are attached to the edge of a bimetallic snap disk which is fastened on a screw base which, like the fixed contacts, are fastened on a carrier by means of set screws which allow adjustment.
  • the carrier can consist of moldable plastic or bahelite or of a ceramic, not specified.
  • the invention has for its object to provide a bimetal temperature switch which can be manufactured in a very flat design, remains dimensionally stable even under different temperature loads, maintains its switching temperature and is versatile and adaptable.
  • thermobimetal switch uses a thin aluminum oxide ceramic plate as a carrier, which is also referred to as a wafer in semiconductor technology.
  • a thin aluminum oxide ceramic plate as a carrier, which is also referred to as a wafer in semiconductor technology.
  • the production of such aluminum oxide ceramic plates with exceptional breaking strength is state of the art. Despite their advantages, which will be described below, they have so far not been used as carriers for bimetallic circuit breakers.
  • the aluminum oxide ceramic plates used as carriers for the thermal bimetallic switches can be considerably thinner than the carriers made of injection-molded plastic, which have been frequently used for small, open thermal switches, and thinner than printed circuit boards.
  • the carrier used according to the invention has only a relatively low heat capacity, which has a favorable effect on the response speed of the switch.
  • Such an aluminum oxide ceramic carrier is also highly heat-resistant, especially in the form of a thin plate: it can be used up to considerably higher temperatures than plastic carriers or printed circuit boards and does not warp.
  • Another advantage is its low thermal expansion coefficient compared to plastics.
  • an alumina ceramic plate can be manufactured more dimensionally from the outset than a plastic injection molded part, so that fewer tolerance problems occur when manufacturing a bimetal switch with an alumina ceramic plate as a carrier.
  • an aluminum oxide ceramic plate can not only be provided with conductor tracks and equipped with electrical components like a printed circuit board, but resistors and other active or passive circuit elements up to complete circuits can also be integrated in the carrier plate, which makes the switch a compact, inexpensive hybrid component.
  • a particularly simple, but important for practical application of the switch according to the invention is characterized in that the aluminum oxide ceramic carrier carries on one side the generic elements of the bimetallic switch while it is on its opposite side (the underside) is provided with a resistance layer and is thus designed as a thick-film resistor. If the resistance layer is arranged in such a way that it electrically bridges the switch, then such a switch can be used as an overtemperature switch, which does not close again automatically after a predetermined temperature has been exceeded, but remains open, because after opening the switch, the current is only exceeded the resistance layer flows, which heats up and generates so much heat and transfers it to the bimetal element that it remains above its switching temperature. In its design according to the invention, such a switch is considerably more compact and less expensive than the switch described in DE-PS 32 31 136, which also remains open after its switching temperature has been exceeded.
  • two sheet resistors can be provided on the underside of the carrier plate, one of which electrically bridges the switch and one is arranged as a series resistor, which accordingly has one of the two electrical connecting parts assigned to the two switching contacts and, on the other hand, a third electrical connecting part connected is;
  • a switch is distinguished from a comparable switch as described in DE-GM 84 11 838 by a more compact and less expensive structure.
  • more than two film resistors can of course also be formed on the carrier plate.
  • a fuse wire could be arranged in series with the switching contacts on the aluminum oxide ceramic plate.
  • a fuse wire provides additional security in the event that the switch contacts are not separated despite the switching temperature being exceeded, e.g. because they stick; In such a case, the fuse wire heats up to above its melting temperature and breaks the circuit.
  • An aluminum oxide ceramic plate is also ideally suited for equipping it with sensors that generate an electrical output signal.
  • the output signal of such a sensor can be used to control a heating resistor provided on the carrier plate, which heats the bimetal element and thereby actuates the switch.
  • connection parts of the bimetallic switch could be attached to the carrier by drilling holes in the carrier, e.g. by means of a laser beam, and the connection parts are screwed or riveted to the carrier at the holes drilled in this way.
  • the soldering can be carried out according to inexpensive, automatic processes customary in electronics production, e.g. by passing the carrier plates over a wave pool.
  • the possibility of metallizing an aluminum oxide ceramic plate leads to a further advantage of the invention: namely, the fixed contact can also be formed by selective metallization of the top of the carrier, in particular by a printing process.
  • the electrical connection parts can also be used as a carrier for the fixed contact of the switch or as a carrier for one end of the contact spring to be fixed on the carrier.
  • the connection between the fixed contact and the one connecting part and between the contact spring and the other connecting part can be carried out in the usual way by spot welding, the welding process also being able to take place after the electrical connecting parts have been fastened to the carrier plate because of the temperature resistance of the aluminum oxide ceramic.
  • Another, particularly advantageous way of attaching the connecting parts to the carrier is to use the reflow method. For this purpose, a solder metal is printed on the intended fastening points on the carrier, on which the connecting parts, which are best designed for this purpose for a purpose, are clamped and then soldered in a soldering furnace.
  • thermobimetal switches from larger alumina ceramic plates, to form a number of thermobimetal switches side by side on these plates and only to separate the plates along predetermined dividing lines between the thermobimetal switches in a final manufacturing step.
  • a separate bimetal element is provided for the actuation of the contact spring, namely a bimetal snap disk, which is best arranged between the contact spring and the carrier.
  • a snap disk is a disk which is curved by embossing and which, due to its curvature, can assume two stable shapes which are curved in opposite directions, the transition between the two shapes taking place suddenly.
  • you could on or under the contact provide the hooks and tabs that hold the bimetallic snap disk at its edge and at least partially encompass it.
  • this pin between the contact spring and the bimetallic snap disc has a collar through which the two are kept at a distance.
  • the contact spring can be provided with an extension, for example by means of a deep-drawing process which engages with play through a hole in the bimetallic snap disk and through a hole in the carrier.
  • the best way to prevent heat transfer from the contact spring to the separate bimetal disc is to place the bimetal disc on the side of the carrier facing away from the contact spring.
  • the contact spring and the bimetal element can be arranged on the same side of the carrier.
  • the necessary operative connection between the bimetal element and the contact spring is expediently produced by an actuating element which is arranged in a hole in the carrier between the bimetal element and the contact spring.
  • the actuating element could be a plunger that axially, i.e., in an opening in the carrier designed as a bore. is movable in the longitudinal direction of the plunger.
  • This plunger could be attached to the bimetallic element to prevent it from being lost.
  • it is cheaper to attach it to the contact spring in order to influence the switching behavior of the bimetal element as little as possible.
  • a further, particularly advantageous possibility is to attach the plunger neither to the contact spring nor to the bimetallic element, but to arrange it loosely between them in a bore in the carrier; Due to the loose arrangement, the heat transfer from the contact spring to the bimetal element via the plunger is reduced to a minimum.
  • the plunger In order to secure the plunger against losing despite its loose arrangement, it is best to form it at one end with a head whose diameter is larger than the diameter of the hole in the carrier. This head also improves the thermal shielding between the contact spring and the bimetal element. To ensure that the plunger cannot slide out of the carrier in the direction in which its head is pointing, the diameter of the bore in the carrier should not be significantly larger than the diameter of the plunger below its head. This ensures that the plunger cannot slide out of the bore of the carrier obliquely past the contact spring, rather it is always enclosed between the contact spring on one side and the bimetal element on the other side. In order to improve the guidance of the plunger and its centering on the contact spring, it can be advantageous to provide the plunger with an extension above its head and to allow this extension to pass through a hole provided at a corresponding point in the contact spring.
  • the thermal bimetallic switch according to the invention in which the actuating element, which is enclosed between the bimetallic element on one side and the contact spring on the other side and is arranged in a hole in the carrier, is a ball, which preferably consists of glass or a ceramic material.
  • a ball which preferably consists of glass or a ceramic material.
  • Such a ball not only has the advantage of being a particularly poor thermal bridge between the contact spring and the bimetallic element, it is also extremely easy to install. By sieving out the balls, it can be ensured in a simple and inexpensive manner that the balls used only differ so slightly in diameter that these diameter tolerances do not lead to any noticeable scatter in the switching temperature.
  • the carrier made of an aluminum oxide ceramic also makes a significant contribution to low scattering in the switching temperature, because it can be produced with very good dimensions and also after prolonged use and more frequently Thermal stress does not warp, but maintains its shape stably.
  • the combination of a carrier made of a thin aluminum oxide ceramic plate with a loose ball as the actuating element between the bimetallic element and the contact spring is therefore particularly advantageous in order to achieve low scatter in the switching temperatures of thermobimetal switches in a series, in view of the fact that such switches are produced in large quantities advantage is not to be underestimated.
  • the very thin aluminum oxide ceramic carrier that makes the use of such balls possible and interesting, because the smaller the balls are, the greater the advantages; however, the diameter of the balls must be greater than the thickness of the aluminum oxide ceramic carrier. Its thickness is preferably between 1.0 and 1.5 mm; the diameter of the balls is preferably chosen to be twice the thickness of the carrier.
  • Such small balls - especially if they are made of a ceramic or glass - are so light and have such a low heat capacity that they do not influence the switching temperature of the bimetal element.
  • the bimetallic element could be a bimetallic spring soldered on one side to the underside of the carrier, but it is more advantageous to use a bimetallic snap disk instead, which is held by holders which are attached to the carrier and encompass the edge of the bimetallic element and / or a stop for the edge form the bimetal element, loose - but captive
  • Suitable holders for the bimetallic snap disc are e.g. tabs fastened by soldering on the top of the carrier, which are turned over to the underside of the carrier and hold the bimetallic disc there, similar to photo corners.
  • At least one of the brackets is expediently an integral part of one of the two electrical connection parts of the switch and therefore does not have to be installed separately.
  • a holder which is an integral part of one of the two electrical connection parts
  • one preferably uses one with a pin as a further holder, with which it is captively inserted, in particular latched, into a bore in the carrier.
  • This second holder can be an injection molded part made of plastic.
  • brackets must secure the bimetal disc against sliding out in all directions. This is achieved with only two brackets if the respective bimetallic element is provided on one edge with two mutually opposite recesses, in each of which a nose of the brackets engages. Conversely, one could of course also provide the bimetallic element with a nose on opposite edges and let it engage in recesses of the two mutually opposite holders. However, the previously mentioned option is cheaper.
  • Another advantage of using a carrier made of a thin aluminum oxide ceramic plate is that both electrical connections of the switch can be arranged at one and the same end of the carrier without difficulty; for this purpose, a conductor track printed on the carrier leads from the fixed contact to that end of the carrier at which the connecting part for the contact spring is also located.
  • thermobimetal switch can be easily provided with an adjustable resistor.
  • a resistance layer can be applied to the underside of the carrier, which is connected at one end to one of the electrical connection parts of the switch.
  • a slide for example a spring clip guided on the support itself, can slide over this resistance layer, which slides on the top of the support on a conductor track which leads to a further electrical connection part of the switch.
  • thermobimetal switch according to the invention consists in providing a further aluminum oxide ceramic plate under the carrier, which is connected to the carrier in a sandwich-like manner to form a structural unit. This makes it possible to combine a larger number of electrical components, in particular sheet resistors, with the switch without increasing the base area of the switch, or to provide a resistance layer in a well-protected manner in the space between the two aluminum oxide ceramic plates.
  • the slide and the resistance layer are arranged in a well-protected manner, and the slide is guided exactly and can produce sufficient contact pressure on the resistance layer on the opposite aluminum oxide ceramic plate support.
  • the recess can be formed, for example, by providing a through hole in the upper aluminum oxide ceramic plate, which is somewhat larger in the lower area than the diameter of the bimetal snap disk and is narrowed at the upper edge by a collar or inwardly projecting projections so that the bimetal snap disk cannot fall out of the hole upwards. After inserting the bimetallic disc into the hole in the upper plate from below, cover the hole with the lower alumina ceramic plate so that the bimetallic snap disc cannot fall out from below.
  • the lower aluminum oxide ceramic plate can be formed without any recess at this point.
  • a through hole can of course also be arranged in the lower plate, which is narrowed at the lower edge by a collar or inwardly projecting projections.
  • the contact spring is expediently provided with a bulge directed against the bimetallic snap disk or with a pin by the distance between the bimetal element which has become larger due to the recessed arrangement of the bimetal element and to reduce the contact spring again.
  • the thermal bimetallic switch in which the bimetallic snap disk is arranged in a recess in the aluminum oxide ceramic plates, can be developed particularly advantageously by arranging in this recess between the bimetal element and the contact spring a conventional snap disk, which has a uniform coefficient of thermal expansion, i.e. a snap disk which The effect of temperature does not reverse the direction of its curvature.
  • a conventional snap disk which has a uniform coefficient of thermal expansion, i.e. a snap disk which The effect of temperature does not reverse the direction of its curvature.
  • Such an ordinary snap disc is inserted into the recess in such a way that its curvature points in the same direction as the curvature of the bimetal snap disc below its switching temperature.
  • the bimetallic snap disc If the bimetallic snap disc is then heated above its switching temperature, the direction of its curvature changes abruptly and thus also forces a reversal of the curvature of the ordinary snap disc, which acts on the contact spring and lifts it up.
  • the advantage of this arrangement is that if the temperature drops below the switching temperature of the bimetal element, it springs back to its original shape, but not the usual snap disk; rather, it continues to hold the switch open until it is reset by hand. Keeping this open after a fault is mandatory in many applications for safety reasons.
  • the switch shown in FIGS. 1 to 3 consists of a thin, rectangular carrier 1 made of an aluminum oxide ceramic, which has an elongated hole 2 in the middle.
  • the elongated carrier 1 is metallized at its two ends on the underside 1 and there are therefore attached two connecting lugs 3 and 4, each of which has a soldering eye 5 at one end and is fork-shaped at its other end.
  • the prongs 6 of the fork which bear against the metallized underside 1 of the carrier are soldered to the carrier 1 in the immersion bath.
  • the prongs 7 of the fork resting on the top of the carrier 1 are not soldered to the carrier 1.
  • a contact spring 8 On one terminal lug 3, one end of a contact spring 8 is welded by spot welding, which carries a contact piece 9 at its free end. Opposite this movable contact piece 9, a fixed contact 10 is welded onto the other connecting lug 4.
  • the contact spring 8 has a hole 11 approximately in the middle, in which a pin 12 made of plastic is held captive.
  • the bolt 12 rests with a head 13 on the upper side of the contact spring 8 and extends downward through the contact spring. Its shaft is guided through a central hole 14 in the middle of a bimetallic snap disc 15, which is arranged between the carrier 1 and the contact spring 8, and through the elongated hole 2 of the carrier 1. Between the contact spring 8 and the bimetallic snap disk 15, the bolt 12 is provided with an extended collar 16, which on the one hand ensures a certain distance and on the other hand provides thermal shielding between the contact spring 8 and the bimetallic snap disk 15.
  • the bimetallic snap disk 15 speaks due to the occurrence of a temperature which is above its switching temperature, then it raises the contact spring 8 and current only flows through the sheet resistor 17, which heats up, consequently heating the bimetal snap disk 15 and preventing it from returning to its starting position jumps back in which the switch would close.
  • the bimetallic snap disk 15 is hardly influenced by the current heat which is generated in the contact spring 8. This is ensured on the one hand by the shielding by the collar 16, but on the other hand also by the contact of the bimetallic snap disk 15 with the carrier 1, as a result of which heat can flow away from the bimetal element onto the carrier 1.
  • thermobimetal switch shown in Figs. 4 and 5 differs from that in the
  • Fig. 1 to 3 shown mainly in that the bimetallic snap disk 15 is not arranged on the top of the carrier 1 between the carrier and the contact spring 8, but is loosely held on the underside of the carrier 1 by a holder 20, which is an integral part of the is a terminal lug 3 to which the contact spring 8 is also attached.
  • This terminal lug 3 is fork-shaped, similar to the terminal lug shown in FIG. 1.
  • the immovable end of the contact spring 8 is under the upper prong 7 of the fork of the terminal lug 3, and both are soldered to the carrier 1.
  • the lower prong 6 of the fork 3 is extended beyond the center of the carrier 1 and shaped into a structure 20 which is similar to a pan, in the bottom of which a large recess 21 is provided which extends almost from edge to edge.
  • a structure 20 which is similar to a pan, in the bottom of which a large recess 21 is provided which extends almost from edge to edge.
  • the structure 20 serves as a holder for the bimetallic snap disc 15, which is inserted before the terminal lug 3 is attached to the carrier 1.
  • the large recess 21 ensures that the bimetallic snap disk 15 can reach the ambient temperature unhindered.
  • a continuous, cylindrical hole 26 is provided in the center of the carrier 1, in which a cylindrical plunger 27 with a lenticular head 28 is inserted.
  • the plunger can be an injection molded part made of plastic.
  • the shaft diameter of the plunger should be only slightly smaller than the diameter of the hole 26 in order to ensure that the plunger 27 is guided in the hole 26 largely without play.
  • the contact spring extending over the head 28 of the plunger 27 ensures that the plunger. 27 is movable, but is held captive.
  • the stem length of the plunger 27 is dimensioned such that when the temperature of the bimetallic snap disc is below its switching temperature and the bimetal snap disc is curved downward, as shown in FIG. 4 in solid lines, the plunger 27 does not extend all the way down to the bimetal snap disc. However, if the temperature of the bimetallic snap disc exceeds its switching temperature, then its curvature reverses, as shown in dashed lines in Fig. 4, and thereby it raises the plunger 27 and this the contact spring 8, so that the contact piece 9 provided at the tip thereof Fixed contact 10 is lifted off.
  • the thermal bimetallic switch shown in FIGS. 6 and 7 differs from the switch shown in FIGS. 4 and 5 essentially in the design of the connecting lugs and the holder for the bimetallic snap disk.
  • the two connecting lugs 3 and 4 are not fork-shaped, but angled twice at the ends intended for attachment to the carrier 1 to form an approximately C-shaped structure on one side. With this approximately C-shaped structure, the connecting lugs 3 and 4 grip the carrier 1 from the side and are soldered to it.
  • the immovable end of the contact spring 8 is in turn located between the carrier and the bent leg 30 of the terminal lug 3 lying thereon, and the corresponding leg 31 of the opposite terminal lug carries the fixed contact 10.
  • the holder for the bimetallic snap disk 15 is formed only in part by the connecting lug 3, and this is provided with a step-like angled extension 32; Opposite this there is a second through hole 33 in the carrier 1, into which a holding part 34 is inserted from above; it is a pin with a flat head 35 resting on the upper side of the carrier 1 and a shaft 36 which has a flat recess 37 below the carrier 1, which faces the extension 32 of the connecting lug 3.
  • the bimetallic snap disk 15 lies with one end in the gap formed between the underside 1 of the carrier and the extension 32 and with its opposite end in the recess 37 of the pin 34.
  • the bracket 34 designed as a pin allows the bimetallic snap disk 15 to be easily installed.
  • the pin can simply be inserted into its hole 33 and is held captive therein by the contact spring 8 extending over it. However, it is preferably ensured that it is stuck in its hole 33, for example by closely matching its diameter to the diameter of the hole.
  • thermobimetal switch shown in FIGS. 8 and 9 differs from the switch depicted in FIGS. 4 and 5 essentially by the different design of the connecting lugs and the holder of the bimetallic snap disk.
  • the two connecting lugs 3 and 4 are of substantially the same design, essentially the same as the connecting lug 4 in FIGS. 4 and 5. Neither of the two connecting lugs 3 and 4 serves to hold the bimetallic snap disk 15. Rather, two separate holders 40 are provided for this , which are designed in a similar manner to the cones as the holder 34 in FIG. 6.
  • the two holders 40 have a flat head 45, which rests on the top of the carrier 1, a shaft 46, with which they can pass through their respective hole 43 in Extend the carrier 1, a collar 44, which abuts the underside 1a of the carrier, and a wedge-shaped recess 47 in the shaft 46 below the collar 44.
  • the holders 40 can be injection molded parts made of plastic, which are initially produced without the head 45 , from below to to the collar 44 inserted into their respective hole 43 and then captively secured in the carrier 1 by thermoplastic shaping of their upwardly projecting end into a head 45.
  • the two brackets are arranged so that the two wedge-shaped recesses 47 are at the same height to accommodate the two opposite edges 49 of the bimetallic snap disk 15, both of which are provided with a recess 48 - corresponding to the recess 38 in FIG. 7 - into which the Engage brackets 40 and prevent the bimetallic snap disk 15 from being lost.
  • the switch shown in Fig. 8 between the bimetallic snap disc 15 and the contact spring 8 has a plunger 27 which has a cylindrical extension 41 above its head 28, which with some play through a hole in the Contact spring 8 passes through and thereby leads to improved centering.
  • the bimetallic switch shown in FIGS. 10 and 11 has a terminal lug 4 which looks essentially like the terminal lug 4 in FIGS. 1 to 3, and has a terminal lug 3 which essentially looks like those in the FIGS.
  • an extension 32 which serves to hold the bimetallic snap disk 15 has, like the connecting lug 3 shown in FIG. 6, in a manner corresponding to the switch shown in FIG. 6, the switch shown in FIG. 10 has a further peg-shaped one Bracket 54, which is snapped into a through hole 33 of the carrier 1 by means of a longitudinally slotted shaft 56 which is undercut near its one end.
  • the bracket 54 is inserted from below up to a collar 55 in the hole 33.
  • a flat head 57 adjoins the collar 55.
  • the bimetallic snap disk 15 is provided in the area of action of the holder 54 with a recess 38 as in the example in FIGS. 6 and 7, in which the holder 54 engages with the collar 55.
  • bracket 54 in FIG. 10 and instead of the bracket 34 in FIG. 6 and instead of the brackets 40 in FIG. 8, one could also use brackets as shown in FIGS. 12 and 13. These brackets differ from the bracket shown in FIG. 6 in that a semicircular projection facing the bimetallic snap disk 15 and engaging in its recess 38 is provided in the recess 37.
  • the thermal bimetallic switch shown in FIGS. 10 and 11 differs significantly from the previous exemplary embodiments in that the movement of the bimetallic snap disk 15 is not transmitted to the contact spring 8 by a plunger but by a small ball.
  • the ball 58 is located in the cylindrical hole 26 of the carrier, the diameter of which is somewhat larger than the diameter of the ball 58.
  • the diameter of the ball 58 is selected and matched to the position of the contact spring 8 and the bimetallic snap disk 15 such that the ball captive in the cage formed by the bimetallic snap disk, the hole 26 in the carrier and the contact spring 8, both when the switch is closed and when it is open.
  • the diameter of the ball 58 is preferably approximately twice the thickness of the carrier 1.
  • the ball expediently consists of glass or of a ceramic material. Such balls can be manufactured very precisely and are easy to use and favor tightly tolerated switching temperatures for switches in a series.
  • thermobimetal switch shown in FIGS. 14 and 15 differs from the switch depicted in FIGS. 1 to 3 essentially in that its bimetallic snap disk 15 is heated by a fixed resistor 60.
  • the position of this fixed resistor is indicated in Fig. 14 by a circle.
  • the fixed resistor could - as indicated in FIG. 15 - be a wire resistor.
  • the fixed resistor is connected as a series resistor of the switch; Therefore, the electrical current runs from the connecting lug 3 first over the extension 61 located on the underside 1a of the carrier to one end of the fixed resistor 60, then via the fixed resistor 60 to a conductor track 62 which runs back on the underside 1 of the carrier to that end of the Carrier 1, to which the connecting lug 3 is fastened, is turned over at that end to the upper side of the carrier 1 and extends as a frame-shaped structure 63 along one edge of the carrier 1 initially in the direction of the opposite connecting lug 4 and then runs to the opposite longitudinal edge of the carrier 1 and at this back in the direction of the connecting lug 3.
  • the frame-shaped structure 63 is soldered to the carrier 1 and also fixes the contact spring 8, the immovable end of which is between the frame-shaped structure 63 and the carrier 1.
  • the frame-shaped structure 63 is expediently a sheet which is formed in one operation from the same sheet from which the connecting lug 3 is also produced.
  • the latter also has a tab 64, which rests on the top of the carrier 1, but has no direct connection to the contact spring 8.
  • the tab 64 and the extension 61 together form a fork which is placed on the carrier 1 is attached.
  • the interior 65 of the frame-shaped structure 63 serves to receive the bimetallic snap disk 15, under which there is an opening 66 in the carrier 1, through which the heat generated by the fixed resistor 60 can be transferred to the bimetallic snap disk 15.
  • the switch As soon as it reaches its switching temperature due to the heating by means of the fixed resistor, it snaps, acts on a downward bulge 67 of the contact spring 8 and lifts it, whereby the switch is opened and at the same time the current flow through the fixed resistor 60 is interrupted.
  • Such a switch can be used as a time switch which opens after a period of time predetermined by the heating power.
  • the fixed resistor 60 could also be a fuse wire as a fuse against overcurrent. In the thermobimetal switch shown in FIGS.
  • the connecting lug 4 is similar to that shown in FIGS. 4 and 5, but it has a further extension 71 which is inserted into the space between the two plates 1 and 1 '.
  • the other connecting lug 3 does not engage around the plates 1, 1 ', it is only inserted with an extension 70 into the space between the two plates 1, 1'.
  • the two extensions 70, 71 hold the plates 1, 1 'parallel to each other at a short distance. Otherwise, the arrangement of the contact spring 8, the bimetallic snap disk 15 and the plunger 27 connecting them are solved in the same way as in FIG. 4.
  • slider 77 which is designed as a bracket, which is displaceably guided on the longitudinal edges of the lower plate 1 'and bent around the underside of the lower plate 1' and with its two free ends 78 and 79 in the space between the engages two plates 1 and 1 '.
  • the two free ends 78 and 79 are designed as corrugated contact springs, one of which makes contact with the resistance layer 72 and the other with the resistance layer 73, both of which are supported on the opposite underside of the upper plate 1.
  • the current runs from the connecting lug 3 via its extension 70 to the conductor 74, from there to the resistance layer 72, via the slide 77 to the resistance layer 73 and from there via the conductor 75 to the electrical connection part 76, which is part of a bracket 80, which encompasses the two plates 1 and 1 ', is soldered from the top of the upper plate 1 with the end of the contact spring 8 to the plate 1 and is located on the underside of the lower plate 1' in a pan-shaped holder 20 for the bimetallic snap disc 15 (as in Fig. 4) continues.
  • This bracket 80 has no direct connection with the connecting lug 3, the extension 70 of which is passed through a window 81 of the bracket 80.
  • the resistance layers 72 and 73 form a series resistor of the switch as in the example according to FIGS. 14 and 15, but this time the resistance is made variable by the slide 77.
  • variable resistor As a parallel resistor, it is also possible to design such a variable resistor as a parallel resistor.
  • thermobimetal switch shown in FIG. 19 differs from that shown in FIG. 18 in that the hole 82 of the upper plate 1 continues into a recess 85 in the lower alumina ceramic plate 1 ', which, however, has a somewhat larger diameter and is designed as a blind hole is.
  • the bimetallic snap disk 15 now lies in the blind hole 85.
  • an ordinary snap disk 86 which does not consist of a bimetal and therefore does not snap when the temperature changes, but when subjected to mechanical action.
  • the two snap disks 15 and 86 are held in the blind hole 85 in that the overlying hole 82 in the upper plate 1 is somewhat narrower than the blind hole below 85.
  • bimetallic snap disk 15 If the bimetallic snap disk 15 is heated above its switching temperature, it jumps into the reverse shape, thereby also forcing the usual snap disk 86 to snap, which thereby lifts the contact spring 8. Such a switch does not close automatically after the temperature has dropped below the switching temperature of the bimetallic snap disk 15, since the usual snap disk 86 remains in its shape until it is reset from the outside, for example by hand.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Contacts (AREA)

Abstract

Le thermo-rupteur à bilame ci-décrit comporte un support (1) plat, électriquement isolant, au moins deux pièces de raccordement électrique (3, 4) fixées sur ledit support (1), dont l'une communique avec un contact fixe (10) disposé sur le support (1) et l'autre communique avec une lame de contact (8), laquelle est fixée au support (1) par l'une de ses extrémités et porte à son autre extrémité un plot de contact (9) mobile coopérant avec le contact fixe (10). Le support (1) est une fine plaquette en aluminium/céramique oxydée.

Claims (31)

1. Thermo-rupteur à bilame, qui comporte un support plat électriquement isolant (1), un ressort de contact (8), qui véhicule le courant à interrompre, est fixé par l'une de ses extrémités au support (1) et porte, à son autre extrémité, une pièce de contact (9), qui est mobile sous l'action d'un élément bimétallique (15) et coopère avec un contact fixe (10), et au moins deux éléments de raccordement électrique (3, 4) fixés au support (1) et dont l'un (4) est relié électriquement au contact fixe (10) disposé sur le support (1) et dont l'autre (3) est relié électriquement au ressort de contact (8), l'élément bimétallique (15) étant un disque bimétallique bistable séparé du ressort de contact (8) et possédant une température de commutation prédéterminée, caractérisé en ce que le support (1) est une mince plaque de céramique à base d'oxyde d'aluminium et est pourvu de voies conductrices (18) et porte une résistance (17), qui shunte électriquement le rupteur, et/ou une résistance série (60).
2. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que le support (1) est métallisé par endroits.
3. Thermo-rupteur à bilame selon la revendication 2, caractérisé en ce que les éléments de raccordement électrique (3, 4) sont réalisés en forme de fourches, qui sont enfichées, dans des zones métallisées séparées sur le support (1) et sont fixées par soudure à ce dernier.
4. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que le support (1) est en outre équipé de composants et/ou de capteurs électriques, notamment d'une ou de plusieurs résistances à couche (17, 60).
5. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que la résistance série (60) est reliée d'une part à l'un des deux éléments de raccordement (3, 4), qui sont associés aux deux contacts de commutation (9, 10), et d'autre part à un troisième point de raccordement situé sur le support (1), ou au ressort de contact (8).
6. Thermo-rupteur à bilame selon la revendication 4, caractérisé en ce que le support (1) porte un fil fusible (60) raccordé électriquement en série aux contacts de commutation (9, 10).
7. Thermo-rupteur à bilame selon la revendication 4, caractérisé en ce qu'il est constitué par la formation d'un circuit électronique sur le support (1), sous la forme d'un circuit hybride.
8. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que pour l'actionnement du ressort de contact (8), un disque métallique bistable (15) est disposé entre ce ressort et le support (1) et que pour le centrage et le blocage de ce disque bimétallique bistable (15), il est prévu une cheville en matière plastique (12), qui traverse avec un certain jeu un trou (14) du disque bimétallique à déclic (15) et soit est fixée au ressort de contact (8) et traverse avec un certain jeu un trou (2) du support (1), soit est fixée sur le support (1) et traverse avec un certain jeu un trou ménagé dans le ressort de contact (8).
9. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que pour l'actionnement du ressort de contact (8), entre ce dernier et le support (1) est disposé un disque bimétallique bistable (15), pour le centrage et le blocage duquel le ressort de contact (8) est pourvu d'un appendice - formé notamment par emboutissage profond -, qui traverse avec un certain jeu un trou (14) du disque bimétallique bistable (15) et un trou (2) du support.
10. Thermo-rupteur à bilame selon la revendication 8, caractérisé en ce que la cheville (12) possède, entre le ressort de contact (8) et le disque bimétallique bistable (15), un collet (16), qui maintient ces deux éléments à distance l'un de l'autre.
11. Thermo-rupteur à bilame selon la revendication 8, caractérisé en ce que soit dans un trou du disque bimétallique (15), soit dans un trou (11) du ressort de contact (8) est insérée une pièce en matière plastique (12), qui isole ces deux éléments l'un de l'autre.
12. Thermo-rupteur à bilame selon la revendication 10 ou 12, caractérisé en ce que le collet (16) de la cheville (12) ou de la pièce en matière plastique est agencé avec une surface étendue de manière à réaliser une protection thermique du disque bimétallique bistable (15) par rapport au ressort de contact (8).
13. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que le contact fixe (10) et le ressort de contact (8) équipé de la pièce de contact mobile (9) sont disposés d'un côté du support (1), tandis que l'élément bimétallique (15) est disposé sur le côté du support (1), qui leur est opposé, et que dans le support (1) est prévu, entre le ressort de contact (8) et l'élément bimétallique (15), un trou (26), dans lequel est disposé un élément d'actionnement (27, 58), qui transmet un déplacement de l'élément bimétallique (15) au ressort de contact (8).
14. Thermo-rupteur à bilame selon la revendication 13, caractérisé en ce que l'élément d'actionnement est un poussoir (27), qui est guidé dans le trou cylindrique (26) du support (1) en y étant déplaçable axialement.
15. Thermo-rupteur à bilame selon la revendication 14, caractérisé en ce que le poussoir (27) possède une tête (28) ou un collet, situé entre le support (1) et le ressort de contact (8) et dont le diamètre est supérieur au diamètre du trou ménagé dans le support (1).
16. Thermo-rupteur à bilame selon la revendication 15, caractérisé en ce que dans le ressort de contact (8) est prévu un trou (42), qui est aligné avec le trou (26) ménagé dans le support (1) et que le poussoir (27) traverse par un prolongement (41).
17. Thermo-rupteur à bilame selon la revendication 13, caractérisé en ce que l'élément d'actionnement est une bille (58), qui est retenue de façon lâche dans une cage formée par le ressort de contact (8), l'élément bimétallique (9) et le trou (26) ménagé dans le support (1).
18. Thermo-rupteur à bilame selon la revendication 17, caractérisé en ce que la bille (58) est réalisée en verre ou en un matériau céramique.
19. Thermo-rupteur à bilame selon la revendication 13, caractérisé en ce que l'élément bimétallique (15) est un disque, qui est maintenu de façon lâche - mais d'une manière imperdable - sur le support (1) par des éléments de retenue (20, 32, 34, 40, 54), qui sont fixés au support (1) et enserrent le bord de l'élément bimétallique (15) et/ou constituent une butée par le bord de l'élément bimétallique (15).
20. Thermo-rupteur à bilame selon la revendication 19, caractérisé en ce qu'au moins l'un de ces éléments de retenue (20, 32) fait partie intégrante de l'un des éléments de raccordement électrique (3, 4).
21. Thermo-rupteur à bilame selon la revendication 19, caractérisé en ce qu'au moins l'un de ces éléments de retenue (34, 40, 54) possède un téton, au moyen duquel il est enfiché, notamment encliqueté, de façon imperdable, dans un trou (33, 43) du support (1).
22. Thermo-rupteur à bilame selon la revendication 19, caractérisé en ce que l'élément bimétallique (15) comporte, au niveau de son bord, un ou plusieurs évidements (38, 48), dans lesquels s'engage respectivement l'un des éléments de retenue (34, 40, 54).
23. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce qu'au-dessous du support (1) est prévue une autre plaque céramique formée d'oxyde d'aluminium (1'), qui est reliée selon une disposition en sandwich au support (1) pour former une unité de construction.
24. Thermo-rupteur à bilame selon la revendication 23, caractérisé en ce que les deux plaques en céramique à base d'oxyde d'aluminium (1, 1') sont disposées à une faible distance réciproque, qu'au moins sur l'une des deux faces, qui sont tournées l'une vers l'autre, des deux plaques (1, 1', 1) est disposée une couche résistive (72, 73), qui, pour la formation d'une résistance variable, est reliée d'une part à l'un des éléments de raccordement (3 ou 4) montés fixes sur les plaques (1, 1') et d'autre part un élément de contact électrique (77) réalisé sous la forme d'un curseur.
25. Thermo-rupteur à bilame selon la revendication 23, caractérisé en ce que dans l'unité de construction formée par les deux plaques en céramique à base d'oxyde d'aluminium (1, 1') appliquées l'une contre l'autre est prévu, au-dessous du ressort de contact (8), un évidement (82, 85) ouvert au moins en direction du ressort de contact (8) et dans lequel l'élément bimétallique (15) agencé sous la forme d'un disque bistable, est reliié de façon lâche, mais imperdable.
26. Thermo-rupteur à bilame selon la revendication 25, caractérisé en ce que l'évidement (82) est un trou traversant ménagé dans la plaque supérieure (1) et qui se rétrécit au niveau de son extrémité supérieure par des parties saillantes ou un collet (83) et est couvert, au niveau de son extrémité inférieure, par la plaque inférieure (1').
27. Thermo-rupteur à bilame selon la revendication 25, caractérisé en ce qu'une partie de l'évidement (82, 85) ménagé dans l'unité de construction (1, 1') est formée, dans la plaque inférieure (1') par un trou borgne (85) ouvert vers le haut ou par un trou traversant, qui est limité au niveau de son extrémité inférieure par des parties saillantes ou par un collet.
28. Thermo-rupteur à bilame selon la revendication 27, caractérisé en ce que le diamètre intérieur du trou (53) ménagé dans la plaque inférieure (1') est supérieur à celui du trou ménagé dans la plaque supérieure (1).
29. Thermo-rupteur à bilame selon la revendication 25, caractérisé en ce que, au-dessus du trou (82) ménagé dans la plaque supérieure en céramique à base d'oxyde d'aluminium (1), le ressort de contact (8) porte un bossage (67) ou une tige, qui est dirigé vers l'élément bimétallique (15).
30. Thermo-rupteur à bilame selon la revendication 25, caractérisé en ce que dans l'évidement (82, 85) présent entre l'élément bimétallique (15) et le ressort de contact (8) est prévu un disque usuel bistable (86), qui possède un coefficient de dilatation thermique uniforme.
31. Thermo-rupteur à bilame selon la revendication 1, caractérisé en ce que la plaque en céramique à base d'oxyde d'aluminium (1) possède une épaisseur comprise entre 1 mm et 1,5 mm.
EP86906334A 1985-11-07 1986-11-07 Thermo-rupteur a bilame Expired - Lifetime EP0246255B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19853539425 DE3539425A1 (de) 1985-11-07 1985-11-07 Thermobimetallschalter
DE3539425 1985-11-07
PCT/EP1986/000642 WO1987003137A2 (fr) 1985-11-07 1986-11-07 Thermo-rupteur a bilame

Publications (3)

Publication Number Publication Date
EP0246255A1 EP0246255A1 (fr) 1987-11-25
EP0246255B1 true EP0246255B1 (fr) 1994-06-08
EP0246255B2 EP0246255B2 (fr) 2001-08-22

Family

ID=6285332

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86906334A Expired - Lifetime EP0246255B2 (fr) 1985-11-07 1986-11-07 Thermo-rupteur a bilame
EP86201993A Pending EP0224950A3 (fr) 1985-11-07 1986-11-07 Interrupteur thermostatique à élément bimétallique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP86201993A Pending EP0224950A3 (fr) 1985-11-07 1986-11-07 Interrupteur thermostatique à élément bimétallique

Country Status (6)

Country Link
US (1) US4847587A (fr)
EP (2) EP0246255B2 (fr)
JP (1) JPS63501833A (fr)
DE (3) DE3539425A1 (fr)
ES (1) ES2059310T5 (fr)
WO (1) WO1987003137A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036117B4 (de) * 2004-07-24 2006-12-14 Tmc Sensortechnik Gmbh Thermobimetallschalter
DE102007014237A1 (de) * 2007-03-16 2008-09-18 Hofsaess, Marcel P. Temperaturabhängiger Schalter und dafür vorgesehenes Schaltwerk

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182538A (en) * 1985-11-07 1993-01-26 Limitor Ag Bimetal thermoswitch
JPH089867Y2 (ja) * 1988-04-30 1996-03-21 ウチヤ・サーモスタット株式会社 サーモスタット
DE3843950C1 (en) * 1988-12-24 1990-03-29 Inter Control Hermann Koehler Elektrik Gmbh & Co Kg, 8500 Nuernberg, De Thermally controllable switching device
DE9101925U1 (de) 1991-02-19 1991-09-19 Limitor GmbH, 7530 Pforzheim Elektrischer Thermobimetallschalter und Halbzeug zu seiner Herstellung
DE4108725A1 (de) * 1991-03-18 1992-09-24 Inter Control Koehler Hermann Thermische schalteinheit fuer elektrische waermegeraete
JP2585148B2 (ja) * 1991-04-05 1997-02-26 ウチヤ・サーモスタット株式会社 フィルム状発熱体内蔵型サーモスタット
DE4206157A1 (de) * 1992-02-28 1993-09-16 Hofsass P Thermoschalter
FR2725082A1 (fr) * 1994-09-22 1996-03-29 Electricite De France Dispositif de limitation de puissance pour installation electrique
US5775270A (en) * 1994-12-21 1998-07-07 Behr Thermot-Tronik Gmbh & Co. Thermostatic valve for the coolant circulation system of an internal-combustion engine
CA2176323A1 (fr) * 1995-09-12 1997-03-13 David A. Hohider Coupe-circuit thermique a element fusible
US5781097A (en) * 1996-03-01 1998-07-14 Portage Electric Products, Inc. Dual calibration thermostatic switch having a wide operating range
US6069553A (en) * 1997-05-16 2000-05-30 Indak Manufacturing Corp. Blower speed control resistors for automotive or other service
JP3934522B2 (ja) * 2002-10-08 2007-06-20 アルプス電気株式会社 バッテリ装置
CN101069254B (zh) 2005-02-02 2010-05-26 打矢恒温器株式会社 恒温器
US20060273876A1 (en) * 2005-06-02 2006-12-07 Pachla Timothy E Over-temperature protection devices, applications and circuits
WO2007043238A1 (fr) * 2005-10-14 2007-04-19 Uchiya Thermostat Co., Ltd. Contacteur thermique
US20070188293A1 (en) * 2006-02-16 2007-08-16 Yu-Kang Yang Temperature switch
US7800477B1 (en) 2007-03-20 2010-09-21 Thermtrol Corporation Thermal protector
JP5000540B2 (ja) * 2008-01-31 2012-08-15 新光電気工業株式会社 スイッチング機能付配線基板
DE102013017232A1 (de) 2013-10-17 2015-04-23 Thermik Gerätebau GmbH Temperaturabhängiges Schaltwerk
CN104752098A (zh) * 2015-03-27 2015-07-01 卢润湖 一种用于突跳式温控器的双金属片
USD852747S1 (en) 2017-02-08 2019-07-02 Eaton Intelligent Power Limited Terminal assembly with a bimetal thermal protection plate for a power receptacle

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860208A (en) * 1955-03-28 1958-11-11 Metals & Controls Corp Snap-acting thermostat element
FR1292656A (fr) * 1960-07-14 1962-05-04 Texas Instruments Inc Interrupteur électrique de dimensions réduites pour circuits imprimés
GB956240A (en) * 1961-01-19 1964-04-22 Victor Graves Vaughan Electrical translating device embodying a thermal protector for an electric motor
BE628316A (fr) * 1961-07-11
US3256413A (en) * 1962-10-22 1966-06-14 Stevens Mfg Co Inc Wafer thin thermostat
DE6604207U (de) * 1964-05-27 1971-07-15 Inter Control Koehler Hermann Temperaturabhaengiges schaltgeraet mit bimetallfuehler.
DE2002268A1 (de) * 1970-01-20 1971-07-29 Raukamp & Co Thermostat fuer elektrische Klein-Kuechengeraete und Spielzeuge
GB1466569A (en) * 1973-10-05 1977-03-09 Erie Electronics Ltd Resistors
FR2263627B1 (fr) * 1974-03-08 1976-12-10 Cables De Lyon Geoffroy Delore
US3905004A (en) * 1974-05-03 1975-09-09 Gte Sylvania Inc Sensor device and method for making
US3972016A (en) * 1974-06-28 1976-07-27 Therm-O-Disc Incorporated Thermostat
JPS5613394B2 (fr) * 1974-11-29 1981-03-27
DE2513494C2 (de) * 1975-03-26 1984-07-19 Peter 7530 Pforzheim Hofsäss Temperaturschutzschalter für Rohrheizkörper
US4231010A (en) * 1978-11-30 1980-10-28 Texas Instruments Incorporated Thermostatic switch employing a stud member for calibration of the switch
DE2916516A1 (de) * 1979-04-24 1980-11-06 Manfred Stuhl Thermoschalter integriert in leiterleiterplatte
DE7920923U1 (de) * 1979-07-21 1979-10-25 Limitor Ag, Zuerich (Schweiz) Thermischer Zeitschalter
US4365225A (en) * 1980-05-05 1982-12-21 Texas Instruments Incorporated Time delay relay with spring clips
DE3126989A1 (de) * 1981-07-08 1983-01-27 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Kochplatte
JPS58108625A (ja) * 1981-12-21 1983-06-28 株式会社日立製作所 厚膜リレ−
AT374069B (de) * 1982-07-12 1984-03-12 Wagner Geb Aluwag Elektrischer heizkoerper
US4423401A (en) * 1982-07-21 1983-12-27 Tektronix, Inc. Thin-film electrothermal device
DE3231136C2 (de) * 1982-08-21 1984-08-23 Limitor AG, 8022 Zürich Bimetallschutzschalter
DE3319227A1 (de) * 1983-05-27 1984-11-29 Microtherm Gmbh, 7530 Pforzheim Thermoschalter
DE3331847A1 (de) * 1983-09-03 1985-03-21 Inter Control Hermann Köhler Elektrik GmbH & Co KG, 8500 Nürnberg Kabeltrommel
US4626818A (en) * 1983-11-28 1986-12-02 Centralab, Inc. Device for programmable thick film networks
DE8411838U1 (de) * 1984-04-14 1984-07-26 Limitor GmbH, 7530 Pforzheim Bimetallschutzschalter
US4591820A (en) * 1984-11-13 1986-05-27 Texas Instruments Incorporated Thermostatic electric switch and thermal biasing assembly therefor
US4591822A (en) * 1984-11-30 1986-05-27 Therm-O-Disc, Incorporated Bimetal thermostat with head collector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036117B4 (de) * 2004-07-24 2006-12-14 Tmc Sensortechnik Gmbh Thermobimetallschalter
DE102007014237A1 (de) * 2007-03-16 2008-09-18 Hofsaess, Marcel P. Temperaturabhängiger Schalter und dafür vorgesehenes Schaltwerk

Also Published As

Publication number Publication date
ES2059310T5 (es) 2002-01-16
WO1987003137A2 (fr) 1987-05-21
JPH0426171B2 (fr) 1992-05-06
US4847587A (en) 1989-07-11
DE8690150U1 (de) 1987-11-19
EP0246255A1 (fr) 1987-11-25
DE3689906D1 (de) 1994-07-14
JPS63501833A (ja) 1988-07-21
DE3539425C2 (fr) 1989-06-22
WO1987003137A3 (fr) 1987-08-13
EP0224950A2 (fr) 1987-06-10
DE3539425A1 (de) 1987-05-14
ES2059310T3 (es) 1994-11-16
EP0246255B2 (fr) 2001-08-22
EP0224950A3 (fr) 1987-11-25

Similar Documents

Publication Publication Date Title
EP0246255B1 (fr) Thermo-rupteur a bilame
EP0557744B1 (fr) Interrupteur thermique
EP2619784B1 (fr) Disjoncteur miniature
DE3231136C2 (de) Bimetallschutzschalter
DE102007042188B3 (de) Temperaturabhängiger Schalter mit Selbsthaltefunktion
DE69208705T2 (de) Elektrothermisches Relais mit Schichtheizelement
DE19922633A1 (de) Thermostat
DE69414400T2 (de) Elektrische schalter
DE3735334A1 (de) Thermisch gesteuerte elektrische schalteinrichtung
EP0951040B1 (fr) Interrupteur à commande thermique
EP3796358B1 (fr) Commutateur dépendant de la température
DE3128090C2 (de) Thermischer Zeitschalter
EP0740323B1 (fr) Thermostat avec un dispositif interrupteur à bimétal commutant en cas de surchauffe
EP0114071A2 (fr) Dispositif de contrôle de température
EP0994497A2 (fr) Interrupteur avec support isolant
DE2850389C3 (de) Temperaturregler für Elektrowärmegeräte, insbesondere für Elektrokochplatten
DE19546004C2 (de) Schalter mit einem bei Übertemperatur schaltenden Schaltwerk
DE3701240A1 (de) Thermostat
DE2511214C2 (de) Temperaturregeleinrichtung für elektrische Geräte
DE3317100C2 (de) Überwachungseinrichtung für Kochplatten, insb. Glaskeramik-Kochplatten
EP0778597A2 (fr) Interrupteur avec un mécanisme de commutation actionné une température excessive
EP0162940B1 (fr) Interrupteur de protection contre les surchages
DE102023104839B3 (de) Temperaturabhängiger Schalter
DE3587064T2 (de) Thermostat.
EP4391000A1 (fr) Commutateur dépendant de la température

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

A5 Separate publication of the ep or int. search report
17P Request for examination filed

Effective date: 19880210

RBV Designated contracting states (corrected)

Designated state(s): CH DE ES FR GB IT LI SE

XX Miscellaneous (additional remarks)

Free format text: VERBUNDEN MIT 86201993.2/0224950 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) DURCH ENTSCHEIDUNG VOM 24.11.89.

17Q First examination report despatched

Effective date: 19900309

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

XX Miscellaneous (additional remarks)

Free format text: VERBUNDEN MIT 86201993.2/0224950 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) DURCH ENTSCHEIDUNG VOM 24.11.89.

REF Corresponds to:

Ref document number: 3689906

Country of ref document: DE

Date of ref document: 19940714

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

ITF It: translation for a ep patent filed
26 Opposition filed

Opponent name: THERMIK GERAETEBAU GMBH

Effective date: 19940728

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940914

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2059310

Country of ref document: ES

Kind code of ref document: T3

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

EAL Se: european patent in force in sweden

Ref document number: 86906334.7

R26 Opposition filed (corrected)

Opponent name: THERMIK GERAETEBAU GMBH

Effective date: 19940728

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: INTER CONTROL HERMANN KOEHLER ELEKTRIK GMBH & CO.

Effective date: 19950308

Opponent name: THERMIK GERAETEBAU GMBH

Effective date: 19940728

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20001122

Year of fee payment: 15

Ref country code: CH

Payment date: 20001122

Year of fee payment: 15

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLAW Interlocutory decision in opposition

Free format text: ORIGINAL CODE: EPIDOS IDOP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20010822

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): CH DE ES FR GB IT LI SE

XX Miscellaneous (additional remarks)

Free format text: VERBUNDEN MIT 86201993.2/0224950 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) DURCH ENTSCHEIDUNG VOM 24.11.89.

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011108

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011119

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011130

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 20011121

EN Fr: translation not filed
EUG Se: european patent has lapsed

Ref document number: 86906334.7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20041011

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041027

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041125

Year of fee payment: 19

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: FR

Ref legal event code: ERR

Free format text: BOPI DE PUBLICATION N: 02/03 PAGES: 281 PARTIE DU BULLETIN CONCERNEE: BREVETS EUROPEENS DONT LA TRADUCTION N'A PAS ETE REMISE A I'INPI IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE. LA REMISE DE LA TRADUCTION EST PUBLIEE DANS LE PRESENT BOPI.

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051107

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051107

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20051108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130