EP0027647B1 - Temperatur-Sicherungsschalter - Google Patents

Temperatur-Sicherungsschalter Download PDF

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Publication number
EP0027647B1
EP0027647B1 EP80106323A EP80106323A EP0027647B1 EP 0027647 B1 EP0027647 B1 EP 0027647B1 EP 80106323 A EP80106323 A EP 80106323A EP 80106323 A EP80106323 A EP 80106323A EP 0027647 B1 EP0027647 B1 EP 0027647B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
plunger
contact
solder
movement
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
Application number
EP80106323A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0027647A1 (de
Inventor
Walter Hollweck
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.)
INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
Original Assignee
INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
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 INTER CONTROL Hermann Koehler Electrik GmbH and Co KG filed Critical INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
Priority to AT80106323T priority Critical patent/ATE2916T1/de
Publication of EP0027647A1 publication Critical patent/EP0027647A1/de
Application granted granted Critical
Publication of EP0027647B1 publication Critical patent/EP0027647B1/de
Expired 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
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/764—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet

Definitions

  • the end of the movement plunger which acts on the fusible link is firmly connected to the inner wall of the sleeve. Neither an axial nor a radial relative movement is possible between the movement tappet and the sleeve, because the end of the movement tappet on the fusible link is crimped into the sleeve.
  • the movement plunger is provided with a blind hole which runs in the direction of its longitudinal axis and is open towards the fusible link, into which a compression spring is inserted under compressive stress.
  • the pretensioned compression spring enclosed in the movement plunger presses through the solder. With its end of movement, it acts on the heat transfer plate with the result that the full spring pressure is now effective via the movement plunger against the contact spring and pushes it out of its contact-making expansion insert between the contacts fixed to the housing. This opens the contact bridge.
  • the invention is based on the object to simplify a temperature safety switch of the type mentioned in structural terms' such that a discounted production is possible.
  • the temperature fuse switch according to the invention is to be distinguished by good long-term behavior and quick tripping when the melting temperature of the solder is reached. This object is achieved by the characterizing features of claim 1.
  • the kinetic energy required for the contact opening movement of the movement plunger is applied by the contact spring itself, as a result of which the separate trigger spring can be dispensed with.
  • the movement plunger and the sleeve with the solder material surrounded by them need only be inserted into the corresponding housing recess. A mutual connection under tension is not necessary.
  • the tolerance of the response temperature of the subject matter of the invention is comparatively narrow because the softened or liquefied solder cannot escape directly in the radial direction - based on the longitudinal axis of the movement plunger, but first in the axial direction - likewise based on the longitudinal axis and the direction of movement of the movement plunger - from both Sleeve ends must emerge before the opening path for the movement plunger or the contact spring is released.
  • the fusible link is prevented from slowly reducing the effective height of the fusible link insert by slow radial evasion and thus at least already initiating the opening process.
  • the characteristic feature of claim 2 has the effect that the effective passage cross-sections for the liquefied solder at the upper and at the lower sleeve outlet can be coordinated with one another in such a way that the liquefied solder emerges from both sleeve ends practically simultaneously. This prevents the solder from emerging prematurely from the lower end of the sleeve adjacent to the heat transfer plate, although the solder is in direct contact with the heat transfer plate.
  • the labeling feature of claim 3 never contains a particularly advantageous constructive solution to that in the labeling feature of claim 2 the thought.
  • the characterizing features of claims 2 and 3 take into account the fact that there is a temperature gradient between the end of the fusible link facing the heat transfer plate and the end facing the moving plunger such that the fusible link in the area of the moving plunger is always somewhat colder and of greater strength than in the contact area of the heat transfer plate.
  • the movement plunger 15 rests with its upper end 22 on the underside of the contact spring 9 and holds its free end 10 in the closed position against the mating contact 7 of the left connection 2.
  • the channel 14 is dimensioned in this way that the movement plunger 15 is freely displaceable in the direction of its longitudinal axis 23 within the insulating material housing 1. Between the lower end 16 of the movement plunger 15 and the inner wall 24 of the sleeve 27 there remains an annular gap 25 sufficient for the liquefied solder 18 to pass through.
  • a sufficient distance 28 is provided between the circumferential wall 26 of the sleeve 17 and the inner wall 27 of the insulating material housing 1 opposite this for complete absorption of the solder 18 displaced from the sleeve 17 after melting.
  • a sufficient distance 30 is also present between the upper end 21 of the sleeve 17 and the upper boundary wall 29 of the recess 12.
  • the sleeve 17 is provided with an inwardly projecting annular collar 31 formed on its inner wall 24. As a result, the passage cross section of the lower end 20 of the sleeve 17 is reduced.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)
EP80106323A 1979-10-20 1980-10-17 Temperatur-Sicherungsschalter Expired EP0027647B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80106323T ATE2916T1 (de) 1979-10-20 1980-10-17 Temperatur-sicherungsschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2942478 1979-10-20
DE19792942478 DE2942478A1 (de) 1979-10-20 1979-10-20 Temperatur-sicherungsschalter

Publications (2)

Publication Number Publication Date
EP0027647A1 EP0027647A1 (de) 1981-04-29
EP0027647B1 true EP0027647B1 (de) 1983-03-30

Family

ID=6083973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106323A Expired EP0027647B1 (de) 1979-10-20 1980-10-17 Temperatur-Sicherungsschalter

Country Status (4)

Country Link
US (1) US4366462A (enrdf_load_stackoverflow)
EP (1) EP0027647B1 (enrdf_load_stackoverflow)
AT (1) ATE2916T1 (enrdf_load_stackoverflow)
DE (1) DE2942478A1 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521770A1 (fr) * 1982-02-17 1983-08-19 Seb Sa Coupe-circuit thermique pour appareils a chauffage electrique
DE3843154A1 (de) * 1988-12-22 1990-06-28 Felten & Guilleaume Energie Ausloeseeinrichtung fuer schaltgeraete und schaltanlagen im mittelspannungsbereich
EP0285044A3 (de) * 1987-04-02 1990-07-04 Fritz Pscherer Nachf. Gmbh Temperatursicherung für elektrische Geräte
DE19519784A1 (de) * 1994-06-17 1996-01-25 Zexel Corp Parallelachsendifferential für Fahrzeuge
DE19528100A1 (de) * 1995-08-01 1997-02-06 Inter Control Koehler Hermann Thermische Sicherung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536641A (en) * 1984-01-26 1985-08-20 Black & Decker, Inc. Iron with overtemperature protection means
US5134413A (en) * 1988-12-27 1992-07-28 Georgia Tech Research Corporation Segmented cylindrical corner reflector
US5734312A (en) * 1995-06-26 1998-03-31 Black & Decker Inc. Overtemperature protection assembly for an appliance
ES2155788B1 (es) * 1999-06-09 2001-12-01 Bsh Krainel Sa Termofusible de proteccion perfeccionado.
DE10033354C1 (de) * 2000-07-08 2002-01-24 Tsb Thermostat Und Schaltgerae Thermisch gesteuerte, elektrische Schaltvorrichtung
DE10226357B4 (de) * 2002-06-13 2004-06-24 INTER CONTROL Hermann Köhler Elektrik GmbH & Co KG Thermische Sicherung
WO2004027932A2 (en) * 2002-09-17 2004-04-01 Saudi Arabian Oil Company Fire safety fusible link electrical terminal block
US7206505B2 (en) 2004-06-29 2007-04-17 S.C. Johnson & Son, Inc. Volatizer with integrated thermal cutoff
DE102005060965B4 (de) * 2005-06-28 2007-08-16 Inter Control Hermann Köhler Elektrik GmbH & Co. KG Thermische Sicherung mit Verfahren zu ihrer Herstellung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE294238C (enrdf_load_stackoverflow) *
US1159602A (en) * 1914-06-17 1915-11-09 Joseph F Scheuer Thermal circuit-closer.
CH180001A (de) * 1935-03-25 1935-10-15 Sauter Ag Ubertemperatursicherung für elektrische Heisswasserspeicher.
FR1030509A (fr) * 1951-01-05 1953-06-15 Dispositif d'alarme fonctionnant en cas de menace d'incendie
DE1006053B (de) * 1952-10-09 1957-04-11 Christian Buerkert UEbertemperatursicherung
US2997562A (en) * 1960-05-25 1961-08-22 Jr William H Hathaway Thermal switch
FR1582278A (enrdf_load_stackoverflow) * 1967-09-07 1969-09-26
DE2530970A1 (de) * 1975-07-11 1977-01-27 Inter Control Koehler Hermann Thermostat-kombination
US4189697A (en) * 1977-09-09 1980-02-19 Nifco Inc. Thermal cut-off fuse
DE7817937U1 (de) * 1978-06-15 1987-08-20 Inter Control Hermann Köhler Elektrik GmbH & Co KG, 8500 Nürnberg Temperatursicherung für elektrische Geräte
DE2834187C2 (de) * 1978-08-04 1983-10-20 Gerd 4200 Oberhausen Gillenkirch Tüten-Abpackmaschine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521770A1 (fr) * 1982-02-17 1983-08-19 Seb Sa Coupe-circuit thermique pour appareils a chauffage electrique
EP0285044A3 (de) * 1987-04-02 1990-07-04 Fritz Pscherer Nachf. Gmbh Temperatursicherung für elektrische Geräte
DE3843154A1 (de) * 1988-12-22 1990-06-28 Felten & Guilleaume Energie Ausloeseeinrichtung fuer schaltgeraete und schaltanlagen im mittelspannungsbereich
DE19519784A1 (de) * 1994-06-17 1996-01-25 Zexel Corp Parallelachsendifferential für Fahrzeuge
DE19519784C2 (de) * 1994-06-17 2003-04-03 Bosch Automotive Systems Corp Differential mit parallelen Achsen für Fahrzeuge
DE19528100A1 (de) * 1995-08-01 1997-02-06 Inter Control Koehler Hermann Thermische Sicherung
DE19528100C2 (de) * 1995-08-01 1998-03-26 Inter Control Koehler Hermann Thermische Sicherung

Also Published As

Publication number Publication date
DE2942478A1 (de) 1981-04-30
DE2942478C2 (enrdf_load_stackoverflow) 1990-03-29
EP0027647A1 (de) 1981-04-29
ATE2916T1 (de) 1983-04-15
US4366462A (en) 1982-12-28

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