EP0795885A2 - Interrupteur avec un mécanisme de commutation sensible à la température - Google Patents

Interrupteur avec un mécanisme de commutation sensible à la température Download PDF

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Publication number
EP0795885A2
EP0795885A2 EP97100311A EP97100311A EP0795885A2 EP 0795885 A2 EP0795885 A2 EP 0795885A2 EP 97100311 A EP97100311 A EP 97100311A EP 97100311 A EP97100311 A EP 97100311A EP 0795885 A2 EP0795885 A2 EP 0795885A2
Authority
EP
European Patent Office
Prior art keywords
cover part
connection
switch according
connection electrode
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97100311A
Other languages
German (de)
English (en)
Other versions
EP0795885A3 (fr
EP0795885B1 (fr
Inventor
Günter Kruck
Marcel Hofsäss
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.)
Thermik Geraetebau GmbH
Original Assignee
Thermik Geraetebau 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 Thermik Geraetebau GmbH filed Critical Thermik Geraetebau GmbH
Priority to EP05004787A priority Critical patent/EP1536445A3/fr
Publication of EP0795885A2 publication Critical patent/EP0795885A2/fr
Publication of EP0795885A3 publication Critical patent/EP0795885A3/fr
Application granted granted Critical
Publication of EP0795885B1 publication Critical patent/EP0795885B1/fr
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
    • H01H37/04—Bases; Housings; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0056—Apparatus or processes specially adapted for the manufacture of electric switches comprising a successive blank-stamping, insert-moulding and severing operation
    • 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

Definitions

  • the present invention relates to a switch with a housing which accommodates a temperature-dependent switching mechanism, which comprises an electrically conductive lower part and an electrically insulating cover part which closes the lower part and is fastened thereon, on the inside of which there is provided a first, externally plated-through mating contact for the switching mechanism, wherein the lower part serves as a second mating contact of the switching mechanism, which, depending on its temperature, creates an electrically conductive connection between the two mating contacts.
  • a temperature-dependent switching mechanism which comprises an electrically conductive lower part and an electrically insulating cover part which closes the lower part and is fastened thereon, on the inside of which there is provided a first, externally plated-through mating contact for the switching mechanism, wherein the lower part serves as a second mating contact of the switching mechanism, which, depending on its temperature, creates an electrically conductive connection between the two mating contacts.
  • the housing has a lower part made of metal and a cover part closing the lower part, which is made of insulating material.
  • the switching mechanism is arranged, which comprises a spring washer, which carries a movable contact part.
  • the spring washer works against a bimetallic snap washer, which is put over the movable contact part.
  • the spring washer which is supported on the bottom of the lower part, presses the movable contact part against a mating contact, which is provided on the inside of the cover part and extends outward through the cover in the manner of a rivet.
  • the bottom of the lower part serves as another mating contact for the rear derailleur.
  • the cover part is held captive by a flanged edge of the lower part.
  • the electrical connection is made on the one hand via the outside of the lower part and on the other hand via the outer head of the rivet passing through the cover.
  • the spring washer itself is made of an electrically conductive material, it ensures a low-resistance, electrically conductive connection between the mating contact on the cover part and the mating contact on the lower part below the response temperature of the switching mechanism. If the temperature of the switching mechanism is now increased, the bimetallic snap disk snaps suddenly and presses the movable contact part against the force of the spring washer away from the mating contact of the cover part, so that the electrical connection is interrupted.
  • Such switches are generally used for temperature monitoring of electrical devices and are also called thermal switches. As long as the temperature of the electrical device does not exceed a certain response temperature, the switch remains closed, which for this purpose is connected in series with the consumer to be protected. If the temperature of the consumer now rises above the response temperature, the bimetallic snap disc snaps and thus interrupts the current flow to the consumer.
  • the known switch has the disadvantage that its manufacture is relatively complex. This is mainly due to the fact that after the cover part has been manufactured, the mating contact must then be fastened to the cover part, at the same time ensuring that the electrically conductive connection through the cover part to the outside. This is done in the manner of a rivet that merges into a head outside the cover, to which strands, crimp connections, etc. can be soldered. This mounting of the mating contact on the cover part is only possible manually and is therefore very cost-intensive.
  • a wire can now be soldered to the flanged edge of the lower part as a second connection, it also being possible to weld a crimp connection to the outer bottom of the lower part.
  • Another disadvantage of the known switch is that it is not very pressure-stable because of the cover part made of insulating material, so that it is not suitable for applications where it has to absorb high pressures. This is the case, for example, when the switch is arranged in motor windings.
  • a pressure-stable switch is known from DE 21 21 802 A1.
  • This switch also contains a temperature-dependent switching mechanism as described above in its housing.
  • the housing of this switch comprises a cover part and a lower part, both of which are cup-shaped and made of electrically conductive material.
  • Crimp connections are integrally formed on both the upper part and the lower part, the crimp connection of the lower part extending outwards through a corresponding notch in the wall of the upper part.
  • An insulating film is arranged between the upper part and the lower part in order to electrically insulate the two housing parts from one another.
  • the temperature-dependent switching mechanism now contacts the lower part on the one hand via the spring washer and, on the other hand, the cover part via the movable contact part, so that there is an electrically conductive connection between the two crimp connections as long as the temperature of the switching mechanism is below the response temperature. If the temperature of the switching mechanism rises, this electrical connection is interrupted in the manner described above.
  • the main disadvantage is that it is not pressure-resistant, cannot be produced fully automatically and, moreover, is not reliably sealed in a dustproof manner because of the flanged edge.
  • the switch known from DE 21 21 802 A1 is because of the whole Housing made of metal is pressure-resistant and also better sealed, but is even less suitable for automatic production due to the additional insulating film required.
  • this object is achieved in the switch mentioned at the outset in that a first connection electrode, which is electrically connected to the first mating contact, is arranged in a captive manner on the cover part, and a second connection electrode is arranged in a captive manner, which is electrical as a result of the fastening of the cover part to the base part is connected to the lower part.
  • the final assembly of the new switch can now be fully automated, since the cover part can be prefabricated with the two connection electrodes.
  • the switchgear then only has to be inserted into the lower part and the cover part placed thereon before the lower part and cover part are then fastened to one another, thereby simultaneously establishing the connection between the lower part and the second connection electrode.
  • This can, for example, be designed as a ring and be arranged on the underside of the cover part and have an outwardly facing welding lug. After the cover has been placed on an edge or a shoulder of the lower part, the second connecting electrode is thus in contact this edge or this shoulder, so that when the cover part is attached to the lower part, the electrical connection between the second connection electrode and the lower part is automatically established.
  • connection electrodes are now mechanically arranged on the cover part, the assembly of the switch on a device to be protected is made considerably easier, since the external connections of the connection electrodes can now lie in one plane, but are at least at the same height when the switch leaves the production machine . In other words, the fully assembled switch is already ready for connection, no further connection measures are required before the switch can be connected to the device to be protected.
  • the new switch can be manufactured on a machine, so that the manufacturing costs are very low. Because of the high reproducibility of production machines, the number of rejects in switches manufactured in this way also decreases significantly compared to manual final assembly, so that the costs for the new switch are also significantly reduced.
  • the first connection electrode is encapsulated or encapsulated with the cover part such that it is an integral part of the cover part and protrudes from the cover part with a connection part.
  • connection electrode is encapsulated or encapsulated with the cover part such that it is an integral part of the cover part and protrudes from the cover part with a connection part.
  • connection electrodes can be attached very easily to the cover part.
  • the connection electrodes can e.g. be sprayed in succession or simultaneously with the cover part, which is also possible fully automatically.
  • first connection electrode extends in the cover part as a web from its connection part to the approximately centrally arranged first mating contact. It is further preferred if the second connection electrode is formed in the cover part as a ring segment into which the first connection electrode extends.
  • first and the second connection electrodes are punched out of a common sheet metal part.
  • connection electrodes can also be automated.
  • the two connection electrodes can e.g. are delivered with a strap so that they only have to be overmoulded fully automatically afterwards.
  • both the punching out and the encapsulation of the connecting electrodes require only a very few process steps, which can also be fully automated.
  • the new switch it is preferred in the new switch if upward-facing, bent tabs are provided on the lower part, which hold the cover part and contact the second connection electrode, the lower part preferably being a deep-drawn part with a peripheral edge which fits into an annular groove in the Cover part engages. Furthermore, it is preferred here if the cover part and possibly the second connection electrode have slots for the tabs of the lower part.
  • the new switch is made dust-tight by the interaction of the peripheral edge and the annular groove. Because of the slots interacting with the tabs, assembly is also simplified since the cover part is centered / positioned on the tabs via the slots, so that simple automatic production is possible.
  • cover part overlaps the lower part and has pockets open at the top and radially outwards, in the bottom of which the slots open and on the bottom of which the second connecting electrode for the tabs is accessible.
  • This measure is advantageous in terms of simple assembly, because the upwardly and radially open pockets open, the upstanding tabs can now be bent from the side and from above, which not only the fastening of the cover part to the lower part, but also at the same time electrical contact via the tabs is realized between the lower part and the second connection electrode.
  • This measure also has the advantage that only very few and, in addition, automatable manufacturing steps are required to implement the mechanical fastening of the cover part to the lower part and the electrical connection of the second connection electrode to the lower part.
  • step d) the cover part is placed on the lower part in such a way that tabs of the lower part are inserted through slots in the cover part and possibly the first connection electrode.
  • step e) the tabs are bent in such a way that they come to rest in pockets of the cover part which are open upwards and radially outwards and there contact free areas of the second connection electrode and at the same time the cover part on the base part fasten.
  • the first mating contact is designed as a downwardly bent, angled free end of the web-like first connection electrode.
  • connection electrode only a part is required to implement both the connection electrode and the mating contact.
  • the first connection electrode is punched and then and / or embossed / pressed so that the free end is angled downward.
  • This connecting electrode is then encapsulated or encapsulated accordingly with the cover part, so that only very few manufacturing steps are required to manufacture the first connection electrode and the associated first mating contact and to arrange it captively on the cover part. Because of the simple manufacturing steps, this manufacturing section is also particularly easy to automate.
  • the first mating contact has a bolt which is inserted from the inside of the cover part into a central bore in the cover part and the first connection part and is held on the first connection part by a cutting / clamping connection.
  • the advantage here is that despite the two parts now to be used, the entire production is very simple, since on the one hand the first connecting part does not have to be bent.
  • the mating contact only has to be inserted into the bore with its bolt, where it holds without further measures due to the cutting / clamping connection.
  • the attachment of the first mating contact to the cover part can be carried out automatically, only a few manufacturing steps being required.
  • This measure has the advantage that the mating contact is fastened to the cover part by a simple plug-in movement and at the same time connected to the first connection electrode, so that the new manufacturing method requires very few steps.
  • the switching mechanism comprises a spring washer working against a bimetallic snap disc, which is supported with its edge on the lower part and carries a movable contact part which presses it against the first mating contact below a switching temperature of the switching mechanism, whereby preferably the movable contact part is held captive on the spring washer in that it is either welded to it or is formed in one piece with the spring washer.
  • the lower part has warts lying radially on the outside and arranged in a circumferentially distributed manner as a support for the edge of the spring washer, preferably three warts being provided which are arranged approximately equally distributed over the circumference.
  • This measure has the advantage that the spring washer lies evenly even when its edge is slightly uneven due to the stamping.
  • the spring washer cannot tilt or wobble in the lower part, so that after the spring washer has been inserted, the position of the movable contact is defined and the bimetallic snap disk can be put over this contact automatically.
  • Such a switch is also inventive in itself, since it solves the problem of a spring washer which does not lie evenly. It is often the case that turned or stamped parts with bevels are used as a bearing surface for the spring washer, the edge of which, however, does not necessarily lie in one plane due to the stamping production. This then leads to the fact that the disc does not lie evenly, so that the current flow is possibly only transferred through a very small contact area of the spring washer into the lower part of the switch.
  • the spring washer lies firmly and securely on these three support points, particularly when three warts are used, so that in addition to the automated production, the advantages of which have already been described above, a further advantage is that Power is always transferred from the spring washer to the lower part at the three warts.
  • Fig. 1 designates the new switch, which has a housing 11 in which a temperature-dependent switching mechanism 12 is arranged.
  • the housing 11 comprises a lower part 14 made of conductive material, preferably metal, and a cover part 15 made of insulating material, which closes the lower part 14.
  • the temperature-dependent switching mechanism 12 has, in a known manner, a spring washer 16, which is supported in the lower part 14 on the bottom 17 thereof.
  • the spring washer 16 carries a movable contact part 18 which is welded to the spring washer 16 in the exemplary embodiment shown.
  • a bimetal snap disk 19 is placed over the contact part 18 in a known manner.
  • the spring washer 16 presses the movable contact part 18 against a first mating contact 21, which is arranged on the cover part 15 on its inside 22 in a circular recess 23.
  • the conductive lower part 14 itself acts as a second counter contact 24 for the switching mechanism 12.
  • the lower part 14 is a deep-drawn part 26 with a peripheral raised edge 27, from which three tabs 28 extend upwards, as can also be seen from the top view of the lower part 14 in FIG. 2.
  • a support bead 30 runs on the bottom 17, on which the spring washer 16 rests.
  • the cover part 15 is formed integrally with a first connection electrode 34, which comprises an angled web 35, which extends from its external connection part 36 to the region of a bore 37 where the first mating contact 21 is arranged.
  • This first mating contact 21 sits with its bolt 38 in the bore 37, which extends through the cover part 15 and the web 35 of the first connection electrode 34.
  • the insulating cover part 15 has, as a further integral component, a second connection electrode 41 which, according to FIG. 3, comprises a ring segment 42 to which the external connection part 43 is connected.
  • connection electrodes 34 and 41 were extrusion-coated with the cover part 15 during manufacture, so that they are an integral part of the cover part 15.
  • connection electrodes 34 and 41 lie in one plane, which is made possible by the fact that the angled web 35 can extend into the open area of the ring segment 42.
  • Fig. 1 it can also be seen that the cover part 15 has a circumferential annular groove 45 in which the circumferential edge 27 of the lower part 14 is located, so that the interior of the switch 10 is closed dust-tight.
  • a slot 46 is also provided three times, to which another slot 47 adjoins, which is provided in the ring segment 42.
  • These two slots 46, 47 open into a pocket 48 which is open radially outwards and upwards and into which the tab 28 projects from below.
  • an exposed area of the second connection electrode 41 is provided on its bottom 49, so that the bent upper end 50 of the tab 28 is in contact with the second connection electrode 41 and not only establishes an electrical connection to the lower part 14 but simultaneously also the cover part 15 attached to the lower part 14.
  • the pocket 48 has a wall 51 which projects above the bent upper end 50 of the tab 28 so that no electrically conductive parts protrude upward above the new switch 10, which thus follows above is protected against unwanted electrical contacts.
  • the new switch 10 can be brought into good thermal contact with a component to be protected via its electrically conductive lower part 14.
  • the function of the switch 10 described so far is as follows: In the low temperature shown in FIG. 1, there is an electrically conductive connection from the connecting part 36 of the first connecting electrode 34 via the first mating contact 21, the movable contact part 18, the spring washer made of electrically conductive material 16, the warts 31 or the Support bead 30, the conductive lower part 14, the upstanding tabs 28 and the ring segment 42 to the connecting part 43 of the second connecting electrode 41.
  • the bimetallic snap disk 19 snaps from the convex position shown into a concave position and then presses the movable one Contact part 18 against the force of the spring washer 16 away from the first counter contact 21.
  • FIG. 4 shows an alternative exemplary embodiment of the cover part 15, in which instead of an insulated first mating contact 21, the angled web 35 is extended and angled downward at its free end 52 such that the first mating contact 21 is, so to speak, in one piece with the first connecting electrode 34 is trained.
  • the other features of the cover part 15 from FIG. 4 correspond to those of the cover part 15 from FIG. 1 and are accordingly assigned the same reference numerals.
  • connection electrodes 34, 41 are shown before the encapsulation with the cover part 15. It can be seen that the slots 47 are arranged in bulges 53, so that the tabs 28 are appropriately held there by the material reinforcement.
  • the two connecting electrodes 34, 41 are guided with their connecting parts 36, 43 in one piece on a sheet metal strip 55, which together with the connecting electrodes 34, 41 from a common Sheet piece 56 was punched out. Transport holes 57 can also be seen, through which the belt 55 is moved in the course of automatic production.
  • the switch 10 described so far is manufactured as follows:
  • the connecting electrodes 34, 41 are punched out of the common sheet metal piece 56 as shown in FIG. 5 and then overmolded with the cover part 15 so that they become an integral part of the cover part, as shown in FIGS. 1 and 4.
  • the lower part 14 is manufactured as a deep-drawn part, wherein, in addition to the upstanding, circumferential edge 27, the tabs 28 and either the warts 31 or the support bead 30 are formed during the deep-drawing and prior punching.
  • This lower part 14 is fed as bulk material to an automatic production machine, positioned there and used in pallets.
  • the tabs 28, which may have bent during transport, are then straightened again.
  • the spring washer is punched out of band material, bent, heat-treated and provided with a contact part 18, which is either welded on or stamped out.
  • the bimetallic snap disc is also fed into the automatic production machine as bulk material.
  • the spring washer 16 is now inserted into the lower part 14 with the contact part 18 held captive thereon. Especially when the three warts 31 are provided, the spring washer 16 lies securely on the bottom 17 of the lower part 14.
  • the bimetallic snap disk 19 is slipped over the contact part 18 by the production machine, the position of which is precisely known and securely fixed because of the warts 31.
  • the prefabricated cover part 15, as described above, is placed on the lower part 14 in such a way that the three tabs 28 reach upwards into the pockets 48 through the slots 46, 47.
  • a kind of positioning / centering of the cover part 15 on the lower part 14 takes place through the tabs 28.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Amplifiers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Manufacture Of Switches (AREA)
  • Slide Switches (AREA)
EP97100311A 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température Expired - Lifetime EP0795885B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05004787A EP1536445A3 (fr) 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19609577A DE19609577C2 (de) 1996-03-12 1996-03-12 Schalter mit einem temperaturabhängigen Schaltwerk
DE19609577 1996-03-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05004787A Division EP1536445A3 (fr) 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température

Publications (3)

Publication Number Publication Date
EP0795885A2 true EP0795885A2 (fr) 1997-09-17
EP0795885A3 EP0795885A3 (fr) 1998-11-18
EP0795885B1 EP0795885B1 (fr) 2005-05-04

Family

ID=7787987

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05004787A Withdrawn EP1536445A3 (fr) 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température
EP97100311A Expired - Lifetime EP0795885B1 (fr) 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05004787A Withdrawn EP1536445A3 (fr) 1996-03-12 1997-01-10 Interrupteur avec un mécanisme de commutation sensible à la température

Country Status (6)

Country Link
US (1) US5867085A (fr)
EP (2) EP1536445A3 (fr)
AT (1) ATE294995T1 (fr)
DE (2) DE19609577C2 (fr)
ES (1) ES2241010T3 (fr)
PT (1) PT795885E (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008006385A1 (fr) 2006-07-11 2008-01-17 Thermik Geraetebau Gmbh Capuchon de connexion et commutateur à capuchon de connexion
EP4325541A1 (fr) * 2022-08-12 2024-02-21 Marcel P. Hofsaess Commutateur dépendant de la température

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPS199902A0 (en) * 2002-04-19 2002-06-06 F F Seeley Nominees Pty Ltd Protector for thermal switch installed in electromagnetic coils
US20070173423A1 (en) * 2004-06-29 2007-07-26 Vermeer Robert C Method and device for fragrancing and fabric treatment in a clothes dryer
DE102005001371B4 (de) * 2005-01-12 2012-03-15 Marcel P. HOFSAESS Verwendung eines Anschlussübertopfes sowie Schalter mit einem Anschlussübertopf
CN100446148C (zh) * 2005-11-07 2008-12-24 徐佳义 手动复位温控器
US8076813B2 (en) * 2006-06-21 2011-12-13 Emerson Electric Co. Hermetic motors with windings coupled to on-winding motor protectors via welded terminals
GB2481240B (en) * 2010-06-17 2017-04-12 Otter Controls Ltd Thermally responsive electric switches
DE102011015116A1 (de) * 2011-03-22 2012-09-27 Marcel P. HOFSAESS Verfahren zur Herstellung eines temperaturabhängigen Schalters
DE102011107110B4 (de) * 2011-07-12 2013-04-18 Marcel P. HOFSAESS Verfahren zum Umgeben eines elektrischen Bauteils mit einem Schutzgehäuse sowie elektrisches Bauteil mit einem Schutzgehäuse
CN104011823B (zh) * 2011-10-20 2017-05-24 泰科电子日本合同会社 保护装置
DE102011119632B3 (de) * 2011-11-22 2013-04-11 Marcel P. HOFSAESS Temperaturabhängiges Schaltwerk
US9048048B2 (en) * 2012-08-16 2015-06-02 Uchiya Thermostat Co., Ltd. Thermal protector
DE102013101393B4 (de) * 2013-02-13 2014-10-09 Thermik Gerätebau GmbH Temperaturabhängiger Schalter
EP2988313B2 (fr) * 2013-04-19 2023-03-29 Littelfuse Japan G.K. Dispositif de protection
CN105474344A (zh) * 2013-08-26 2016-04-06 泰科电子日本合同会社 保护装置
DE102015114248B4 (de) * 2015-08-27 2019-01-17 Marcel P. HOFSAESS Temperaturabhängiger Schalter mit Schneidgrat
DE102022120445B3 (de) * 2022-08-12 2023-11-30 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102023102302B3 (de) 2023-01-31 2024-03-28 Marcel P. HOFSAESS Temperaturabhängiger Schalter
DE102023102304B4 (de) * 2023-01-31 2024-08-08 Marcel P. HOFSAESS Temperaturabhängiges Schaltwerk und temperaturabhängiger Schalter

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DE2121802A1 (de) 1971-05-03 1973-01-25 Thermik Geraetebau Gmbh Temperaturwaechter
DE3710672A1 (de) 1987-03-31 1988-10-13 Hofsass P Temperaturwaechter mit einem gehaeuse

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DE59009787D1 (de) * 1989-07-25 1995-11-23 Hofsaes Geb Zeitz Ulrika Temperaturschalter mit Bimetall-Schaltwerk.
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DE4317360A1 (de) * 1993-05-25 1994-12-01 Wahler Gmbh & Co Gustav Temperaturabhängiges Schaltgerät

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121802A1 (de) 1971-05-03 1973-01-25 Thermik Geraetebau Gmbh Temperaturwaechter
DE3710672A1 (de) 1987-03-31 1988-10-13 Hofsass P Temperaturwaechter mit einem gehaeuse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008006385A1 (fr) 2006-07-11 2008-01-17 Thermik Geraetebau Gmbh Capuchon de connexion et commutateur à capuchon de connexion
EP4325541A1 (fr) * 2022-08-12 2024-02-21 Marcel P. Hofsaess Commutateur dépendant de la température
US12482620B2 (en) 2022-08-12 2025-11-25 Marcel P. HOFSAESS Temperature-dependent switch

Also Published As

Publication number Publication date
EP0795885A3 (fr) 1998-11-18
PT795885E (pt) 2005-07-29
ATE294995T1 (de) 2005-05-15
EP1536445A2 (fr) 2005-06-01
DE59712290D1 (de) 2005-06-09
DE19609577A1 (de) 1997-09-18
US5867085A (en) 1999-02-02
DE19609577C2 (de) 1998-02-19
EP1536445A3 (fr) 2006-05-03
EP0795885B1 (fr) 2005-05-04
ES2241010T3 (es) 2005-10-16

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