EP0903836A3 - Thermal protection switch - Google Patents

Thermal protection switch Download PDF

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Publication number
EP0903836A3
EP0903836A3 EP98117405A EP98117405A EP0903836A3 EP 0903836 A3 EP0903836 A3 EP 0903836A3 EP 98117405 A EP98117405 A EP 98117405A EP 98117405 A EP98117405 A EP 98117405A EP 0903836 A3 EP0903836 A3 EP 0903836A3
Authority
EP
European Patent Office
Prior art keywords
protection switch
thermal protection
connections
light source
bridge 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.)
Withdrawn
Application number
EP98117405A
Other languages
German (de)
French (fr)
Other versions
EP0903836A2 (en
Inventor
Yolanda Kienzler
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.)
KIENZLER AG G
Original Assignee
KIENZLER AG G
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 KIENZLER AG G filed Critical KIENZLER AG G
Publication of EP0903836A2 publication Critical patent/EP0903836A2/en
Publication of EP0903836A3 publication Critical patent/EP0903836A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
    • 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
    • H01H37/5409—Bistable switches; Resetting means

Landscapes

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

Abstract

Bei einem Thermoschutzschalter mit Schnappscheiben-Thermostat (1, 2) und über einen Übertragungsstift (3) steuerbaren Brückenkontakt (4) zwischen zwei Anschlüssen (6, 6') sowie einem mit dem Stift (3) zusammenwirkenden, als Hohlzylinder ausgebildeten Rückstellknopf (9), weist letzterer im Innenraum eine Lichtquelle (12) mit Strombegrenzung (13) auf, welche dauernd die beiden Anschlüsse (6, 6') überbrückt. Die Lichtquelle (12) leuchtet wegen der Strombegrenzung nur bei offenem Brückenkontakt, d.h. bei ausgelöstem Thermoschutzschalter, und zeigt diesen Zustand an.

Figure 00000001
In the case of a thermal protection switch with a snap-disk thermostat (1, 2) and a bridge contact (4) which can be controlled via a transmission pin (3) between two connections (6, 6 ') and a reset button (9) which acts as a hollow cylinder and interacts with the pin (3) , the latter has a light source (12) with a current limiter (13) in the interior, which continuously bridges the two connections (6, 6 '). Due to the current limitation, the light source (12) only lights up when the bridge contact is open, ie when the thermal protection switch is triggered, and indicates this state.
Figure 00000001
EP98117405A 1997-09-22 1998-09-14 Thermal protection switch Withdrawn EP0903836A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2221/97 1997-09-22
CH222197 1997-09-22
CH222197 1997-09-22

Publications (2)

Publication Number Publication Date
EP0903836A2 EP0903836A2 (en) 1999-03-24
EP0903836A3 true EP0903836A3 (en) 2000-05-17

Family

ID=4228698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117405A Withdrawn EP0903836A3 (en) 1997-09-22 1998-09-14 Thermal protection switch

Country Status (2)

Country Link
EP (1) EP0903836A3 (en)
CN (1) CN1212449A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7518475B2 (en) * 2007-07-24 2009-04-14 Eaton Corporation Electrical switching apparatus, circuit interrupter and method of interrupting overcurrents of a power circuit
US7570146B2 (en) * 2007-07-25 2009-08-04 Eaton Corporation Circuit breaker including ambient compensation bimetal holding and releasing arc fault indicator
US9042073B2 (en) * 2012-03-16 2015-05-26 Eaton Corporation Electrical switching apparatus with embedded arc fault protection and system employing same
CN103177903B (en) * 2013-03-01 2015-06-17 合肥美的电冰箱有限公司 Quick-freezing reset switch device for refrigeration equipment and refrigeration equipment with same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715699A (en) * 1971-07-15 1973-02-06 Fasco Industries Thermostat with reset pin
EP0162940A1 (en) * 1984-05-30 1985-12-04 Lectra Trading Ag Overload protection switch
DE3802647A1 (en) * 1988-01-29 1989-08-03 Lectra Trading Ag Device for indicating the switching condition of an overload circuit breaker
EP0451678A2 (en) * 1990-04-06 1991-10-16 Hitachi, Ltd. Overload protective device
US5391848A (en) * 1993-03-12 1995-02-21 Inventio Ag Push button switch illuminated by light emitting diodes for use with elevators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715699A (en) * 1971-07-15 1973-02-06 Fasco Industries Thermostat with reset pin
EP0162940A1 (en) * 1984-05-30 1985-12-04 Lectra Trading Ag Overload protection switch
DE3802647A1 (en) * 1988-01-29 1989-08-03 Lectra Trading Ag Device for indicating the switching condition of an overload circuit breaker
EP0451678A2 (en) * 1990-04-06 1991-10-16 Hitachi, Ltd. Overload protective device
US5391848A (en) * 1993-03-12 1995-02-21 Inventio Ag Push button switch illuminated by light emitting diodes for use with elevators

Also Published As

Publication number Publication date
CN1212449A (en) 1999-03-31
EP0903836A2 (en) 1999-03-24

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