EP0951041A2 - Interrupteur à commande thermique - Google Patents

Interrupteur à commande thermique Download PDF

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Publication number
EP0951041A2
EP0951041A2 EP99100618A EP99100618A EP0951041A2 EP 0951041 A2 EP0951041 A2 EP 0951041A2 EP 99100618 A EP99100618 A EP 99100618A EP 99100618 A EP99100618 A EP 99100618A EP 0951041 A2 EP0951041 A2 EP 0951041A2
Authority
EP
European Patent Office
Prior art keywords
connection electrodes
switch
resistance part
connection
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
EP99100618A
Other languages
German (de)
English (en)
Other versions
EP0951041A3 (fr
EP0951041B1 (fr
Inventor
Marcel Hofsäss
Michael Becher
Edwin Güttinger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7864679&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0951041(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thermik Geraetebau GmbH filed Critical Thermik Geraetebau GmbH
Publication of EP0951041A2 publication Critical patent/EP0951041A2/fr
Publication of EP0951041A3 publication Critical patent/EP0951041A3/fr
Application granted granted Critical
Publication of EP0951041B1 publication Critical patent/EP0951041B1/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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal means

Definitions

  • the present invention relates to a temperature dependent Switch with two connection electrodes attached to an insulation support, a rear derailleur that depends on its temperature an electrically conductive connection between the two connection electrodes, and a resistance part, the electrically parallel to the rear derailleur with the two connection electrodes is connected.
  • Such a switch is known from DE-OS 21 13 388.
  • the known switch is a thermostat to protect an electrical one Device that is electrically in series with the one to be protected Device is switched and in thermal contact with the Device is.
  • connection electrodes are flat metal parts, from one with a fixed counter contact and the other with a bimetallic part carries, at its free end one with the fixed counter contact interacting movable counter contact sits.
  • the two metal parts are arranged one above the other and clamp a PTC resistor between them, with the interposition a spring in electrical contact with both connection electrodes stands.
  • This structure made of insulation supports, metal parts with fixed and Movable counter contact as well as PTC resistor is in one housing inserted, whereupon the housing opening with a sealing compound is shed.
  • the known switch has the disadvantage that the PTC resistor only mechanically when the switch is fully assembled holds, the assembly of this switch is quite expensive. It is not possible to replace the PTC resistor.
  • This known switch includes a bimetal switchgear arranged in an encapsulated housing.
  • the housing is arranged on a carrier plate, on the conductor tracks and resistors are provided. Outside a PTC resistor is provided on the carrier of the housing, which is soldered parallel to the rear derailleur with external connections is.
  • This switch has the disadvantage that it is relative on the one hand requires many components and has large dimensions.
  • the temperature-dependent switch mentioned above to further train that it is inexpensive and easy to assemble is, preferably an exchange of the resistance part should be possible.
  • the inventors of the present application have recognized that that a surprisingly simple switch is created when the resistance part is not sandwiched between the connection electrodes or on a separate carrier next to the switch is arranged, but immediately inside in the insulation carrier is held. The switch can then be completely complete must be assembled before the resistance part is added is used in the insulation support. If on that The resistance part is omitted, the switch lacks the self-holding function, which is sufficient in many applications is.
  • the switch should have a self-holding function only the resistance part has to be inserted.
  • Resistor parts are used to make different Operating conditions with regard to operating current and response temperature to meet. This results in a big one Manufacturing advantage, because the switch as such in can be prefabricated to a large extent, so that later only the different resistances have to be applied.
  • This possibility already has the one from DE 43 36 mentioned at the beginning 564 A1 known switches offered, there was the subsequent Assembly of the resistance part, however, is very complex.
  • DE-OS 21 13 388 opens this Partial manufacture of the switch is not made inside the case PTC resistor clamped between the connection electrodes had to be supplied in the correct design during production become.
  • the new switch offers the advantage that the basic switch is prefabricated and then, depending on your choice, with a Resistance can be added later. Because this way the basic switch in a single production step in very much larger number of pieces can be produced because namely the specialization of the switch is only determined retrospectively overall, there is also a reduction in production costs, since the lot size in the manufacture of the basic switch can be significantly larger than the generic switch.
  • the two Connection electrodes include flat metal parts, which in a Level are arranged, and if the resistance part on the metal parts lies on.
  • connection electrodes are provided with Contact ends are provided in the longitudinal direction of the switch are arranged one behind the other at a distance, and if that Resistor part bridges the distance.
  • This measure is also advantageous from an assembly point of view because it is enables e.g. a temperature-dependent rear derailleur where a bimetallic spring is attached to one contact end and at its other end carries a movable counter contact that with a fixed mating contact attached to the other contact end cooperates. Geometrically and electrically, so to speak the resistance part then becomes parallel to this bimetal spring arranged.
  • the insulation carrier has projections is provided, the resistance part between them clamp and press on the connection electrodes.
  • connection electrode a fixed mating contact and the other a bimetal part carries, at its free end one with the fixed counter contact interacting movable counter contact sits.
  • This measure has the advantage that a technically very simple switchgear is used, in which the operating current flows over the bimetal part itself, so that on another Spring part can be dispensed with.
  • the resistance part is a PTC block is.
  • 10 denotes a temperature-dependent switch, which comprises an insulation support 11, on which two in Fig. 1 connecting electrodes 12, 13 shown in dashed lines are.
  • the connection electrode 13 is L-shaped and the connection electrode 12 Z-shaped so that they end with their contacts 12a, 13a in the longitudinal axis of the switch 10 one on top of the other to assign.
  • the insulation support 11 is one up open opening 14 is provided, in which the contact ends 12a, 13a protrude so that they are accessible from above.
  • connection electrodes 12, 13 comprise flat metal parts, the left of the switch 10 in Fig. 1 side by side and in the region of the opening 14 in the longitudinal direction of the switch 10 arranged one behind the other in a plane indicated at 15 are.
  • the two contact ends 12a, 13a face each other in Longitudinal direction of the switch 10 a distance indicated at 16 on.
  • connection electrodes 12, 13 Via their external connections lying outside the insulation support 11 17a, 17b are the connection electrodes 12, 13 and thus the switch 10 is electrically connected to a device to be protected.
  • connection electrodes 12, 13 or more precisely on their contact ends 12a, 13a is a resistance part 18, which in the Embodiment shown is a PTC block 19, the distance 16 bridges.
  • the insulation carrier 11 has two crescent-shaped ones in the opening 14 Projections 21, 22 which are perpendicular to the plane of the drawing 1, that is to say extend in the drawing plane of FIG. 2.
  • the Projections 21, 22 clamp the PTC block 19 between them and each overlap with a tapered transverse projection 23, 24, whereby the PTC block 19 on the connection electrodes 12, 13 is pressed.
  • the PTC block 19 is shown in FIG. 1 pressed from above between the projections 21, 22, which are directed outwards rebound, so that the PTC block 19 on the contact ends 12a, 13a comes to rest, the transverse projections 23, 24 den Push PTC block 19 down in Fig. 2 so that a good one electrical contact to the connection electrodes 12, 13 made becomes.
  • connection electrode 12 carries one there at its contact end 12a fixed counter contact 28 with a movable counter contact 29 works together on a free end of a bimetal spring 31 is arranged. At its other end 32 is the bimetal spring 31 with a bent part 33 of the connection electrode 13 connected.
  • the bimetal spring is in the position shown in FIG. 2 31 in its low temperature position, in which it moves Mating contact 29 presses against the fixed mating contact 28, so that an electrically conductive connection between the two Connection electrodes 12, 13 is produced.
  • the switch 10 With its connection electrodes 12, 13, the switch 10 in series with one electrical device to be protected in an electrical circuit switched, the operating current of the device over the Connection electrodes 12, 13 and the bimetal spring 31 performed becomes. Now the temperature of the switch 10 increases and thus the bimetal spring 31 beyond the switching temperature, so the bimetallic spring 31 lifts the movable counter contact 29 from the fixed counter contact 28, whereby the circuit is interrupted so that the protected device is switched off.
  • a residual current still flows through the PTC block 19 is arranged electrically parallel to the switching mechanism 27.
  • the residual current flowing through the PTC block 19 increases the temperature immediately above the bimetal spring 31, so that this is kept above their switching temperature and the Switch 10 can not close again automatically.
  • the PTC block cools 19 and thus also the bimetal spring 31 from that the switching mechanism 27 can close again.
  • the PTC block 19 can differ in terms of its resistance value be designed, whereby different switching temperatures can be obtained. All that is required is different PTC blocks 19 between the resilient Projections 21, 22 and the connecting electrodes 12, 13 in to arrange the opening 14.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Thermistors And Varistors (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Control Of Combustion (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)
EP99100618A 1998-04-16 1999-01-14 Interrupteur à commande thermique Expired - Lifetime EP0951041B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816809A DE19816809C2 (de) 1998-04-16 1998-04-16 Temperaturabhängiger Schalter
DE19816809 1998-04-16

Publications (3)

Publication Number Publication Date
EP0951041A2 true EP0951041A2 (fr) 1999-10-20
EP0951041A3 EP0951041A3 (fr) 2000-08-02
EP0951041B1 EP0951041B1 (fr) 2006-03-22

Family

ID=7864679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100618A Expired - Lifetime EP0951041B1 (fr) 1998-04-16 1999-01-14 Interrupteur à commande thermique

Country Status (7)

Country Link
US (1) US6181233B1 (fr)
EP (1) EP0951041B1 (fr)
AT (1) ATE321352T1 (fr)
AU (1) AU745178B2 (fr)
DE (2) DE19816809C2 (fr)
ES (1) ES2260861T3 (fr)
PT (1) PT951041E (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909059C2 (de) * 1999-03-02 2003-10-16 Marcel Hofsaes Schalter mit Verschweißsicherung
JP4471479B2 (ja) * 2000-10-13 2010-06-02 ウチヤ・サーモスタット株式会社 サーマルプロテクタ
JP2005108585A (ja) * 2003-09-30 2005-04-21 Alps Electric Co Ltd 熱応動スイッチ
US7209337B2 (en) * 2005-04-19 2007-04-24 Remy International, Inc. Electrical thermal overstress protection device
US7800477B1 (en) * 2007-03-20 2010-09-21 Thermtrol Corporation Thermal protector
DE202008017439U1 (de) 2008-07-02 2009-08-27 Tmc Sensortechnik Gmbh Temperaturabhängiger Schalter
DE102009030353B3 (de) * 2009-06-22 2010-12-02 Hofsaess, Marcel P. Kappe für einen temperaturabhängigen Schalter sowie Verfahren zur Fertigung eines temperaturabhängigen Schalters
DE102009039948A1 (de) * 2009-08-27 2011-03-03 Hofsaess, Marcel P. Temperaturabhängiger Schalter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272696A2 (fr) * 1986-12-24 1988-06-29 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Interrupteur à bilame
EP0453596A1 (fr) * 1990-04-25 1991-10-30 Ulrika Hofsäss Commutateur à température
EP0557744A1 (fr) * 1992-02-28 1993-09-01 Erbengemeinschaft Peter Hofsäss Interrupteur thermique

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753421A (en) * 1953-03-11 1956-07-03 Stevens Mfg Co Inc Thermostatic switches
US3265839A (en) * 1963-08-05 1966-08-09 Fasco Industries Thermally-operable circuit breaker
US3308255A (en) * 1964-06-08 1967-03-07 Amf Electrica S P A Ambient thermal protector with abutment contact reengagement means mounted on its case
NL7004367A (fr) * 1970-03-26 1971-09-28
IT1112068B (it) * 1977-11-15 1986-01-13 Texas Instruments Italia Spa Perfezionamento nei rele' termici in particolare per l'avviamento di motori asincroni monofase
US4399423A (en) * 1982-03-29 1983-08-16 Texas Instruments Incorporated Miniature electric circuit protector
DE3220730A1 (de) * 1982-06-02 1983-12-08 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 2,2-dimethyl-3-aryl-cyclopropan-carbonsaeuren (carbonsaeureestern), neue zwischenprodukte hierfuer und verfahren zu deren herstellung
DE3320730A1 (de) * 1983-01-15 1984-07-19 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Temperaturwaechter
ATE29338T1 (de) * 1983-06-20 1987-09-15 Texas Instruments Holland Thermostat.
US4620175A (en) * 1985-10-11 1986-10-28 North American Philips Corporation Simple thermostat for dip mounting
DE8617033U1 (de) * 1986-06-26 1986-08-14 Temtech-Temperatur-Technik Hans-Peter Bojer, 7530 Pforzheim Bimetallschalter
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
GB9109316D0 (en) * 1991-04-30 1991-06-19 Otter Controls Ltd Improvements relating to electric switches
DE9214940U1 (de) * 1992-11-03 1992-12-17 Thermik Geraetebau Gmbh, 7530 Pforzheim Temperaturwächter
US5268664A (en) * 1993-01-25 1993-12-07 Portage Electric Products, Inc. Low profile thermostat
DE4428226C1 (de) * 1994-08-10 1995-10-12 Thermik Geraetebau Gmbh Temperaturwächter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272696A2 (fr) * 1986-12-24 1988-06-29 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Interrupteur à bilame
EP0453596A1 (fr) * 1990-04-25 1991-10-30 Ulrika Hofsäss Commutateur à température
EP0557744A1 (fr) * 1992-02-28 1993-09-01 Erbengemeinschaft Peter Hofsäss Interrupteur thermique

Also Published As

Publication number Publication date
AU745178B2 (en) 2002-03-14
US6181233B1 (en) 2001-01-30
EP0951041A3 (fr) 2000-08-02
ATE321352T1 (de) 2006-04-15
EP0951041B1 (fr) 2006-03-22
ES2260861T3 (es) 2006-11-01
AU2377199A (en) 1999-10-28
DE19816809C2 (de) 2001-10-18
DE19816809A1 (de) 1999-10-28
DE59913236D1 (de) 2006-05-11
PT951041E (pt) 2006-05-31

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