EP0353465A3 - Pressure operated switchgear - Google Patents

Pressure operated switchgear Download PDF

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Publication number
EP0353465A3
EP0353465A3 EP19890111985 EP89111985A EP0353465A3 EP 0353465 A3 EP0353465 A3 EP 0353465A3 EP 19890111985 EP19890111985 EP 19890111985 EP 89111985 A EP89111985 A EP 89111985A EP 0353465 A3 EP0353465 A3 EP 0353465A3
Authority
EP
European Patent Office
Prior art keywords
housing
actuator
abutment
temperature
deflection
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.)
Ceased
Application number
EP19890111985
Other languages
German (de)
French (fr)
Other versions
EP0353465A2 (en
Inventor
Eugen Ehs
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0353465A2 publication Critical patent/EP0353465A2/en
Publication of EP0353465A3 publication Critical patent/EP0353465A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

Bei Druckschaltvorrichtungen, insbesondere für Haushaltsgeräte wie Warmwasserbereiter, die in einem Kunststoffgehäuse ein druckbeaufschlagbares Stellorgan für ein Betätigungsteil eines im Gehäuse angeordneten elektrischen Schaltelementes enthalten, der durch eine im Gehäuse auf einem Widerlager abgestützte Justierfeder belastet wird, führen die unvermeidlichen Temperaturänderungen, denen die Druckschaltvorrichtung ausgesetzt wird, zu Formänderungen des Gehäuses, aus denen eine Verstellung des Schaltpunkts des Schaltelementes resultiert. Erfindungsgemäß ist zumindest das Widerlager (W) der Justierfeder (22) an einem Träger (T) angeordnet, der aus einem unter Temperatureinfluß zumindest in Auslenkrichtung des Stellorgans (19) formstabilen Material besteht und im Gehäuse (2) an Stellen (35) gelagert ist, die unter Temperatureinfluß in Auslenkrichtung des Stellorgans im wesentlichen verformungsfrei bleiben. For pressure switch devices, especially for Household appliances such as water heaters, all in one Plastic housing a pressurizable actuator for an actuating part arranged in the housing contain electrical switching element by a Adjusting spring supported in the housing on an abutment is burdened, lead the inevitable Temperature changes that the pressure switching device is exposed to changes in shape of the housing which an adjustment of the switching point of the Switching element results. According to the invention at least the abutment (W) of the adjusting spring (22) a carrier (T) arranged, which consists of a under Temperature influence at least in the direction of deflection Actuator (19) dimensionally stable material and Housing (2) is mounted at points (35) which under Influence of temperature in the direction of deflection of the actuator remain essentially deformation-free.

EP19890111985 1988-08-05 1989-06-30 Pressure operated switchgear Ceased EP0353465A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883826749 DE3826749C1 (en) 1988-08-05 1988-08-05
DE3826749 1988-08-05

Publications (2)

Publication Number Publication Date
EP0353465A2 EP0353465A2 (en) 1990-02-07
EP0353465A3 true EP0353465A3 (en) 1991-04-10

Family

ID=6360356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890111985 Ceased EP0353465A3 (en) 1988-08-05 1989-06-30 Pressure operated switchgear

Country Status (2)

Country Link
EP (1) EP0353465A3 (en)
DE (1) DE3826749C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507002A3 (en) * 1991-04-02 1992-12-09 Huba Control Ag Pressure switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169431A (en) * 1966-02-08 1969-11-05 Patinvest Patent Und Invest A Electric Pressure-Controlled Snap Switch.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169431A (en) * 1966-02-08 1969-11-05 Patinvest Patent Und Invest A Electric Pressure-Controlled Snap Switch.

Also Published As

Publication number Publication date
EP0353465A2 (en) 1990-02-07
DE3826749C1 (en) 1989-11-02

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