EP0954000A3 - Pressure switch - Google Patents

Pressure switch Download PDF

Info

Publication number
EP0954000A3
EP0954000A3 EP99102978A EP99102978A EP0954000A3 EP 0954000 A3 EP0954000 A3 EP 0954000A3 EP 99102978 A EP99102978 A EP 99102978A EP 99102978 A EP99102978 A EP 99102978A EP 0954000 A3 EP0954000 A3 EP 0954000A3
Authority
EP
European Patent Office
Prior art keywords
pressure switch
contact surfaces
order
piston
pressure
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Withdrawn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
EP99102978A
Other languages
German (de)
French (fr)
Other versions
EP0954000A2 (en
Inventor
Roland Schempp
Achim Weirowski-Herz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0954000A2 publication Critical patent/EP0954000A2/en
Publication of EP0954000A3 publication Critical patent/EP0954000A3/en
Withdrawn legal-status Critical Current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
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs

Landscapes

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

Abstract

Die Erfindung geht von einem Druckschalter 10 aus, der zur Umwandlung eines Druckschwellwertes in ein elektrisches Signal eine Druckkammer 50 mit einem hineinragenden Kolben 46 und einen mit dem Kolben 46 zusammenwirkenden elektrischen Schalter 60 umfaßt. Dessen Schaltwerk 62 weist Mittel 84, 86, 92, 96 auf, die zwischen den Kontakten 94, 98, 100 eine parallel zu den Kontaktflächen gerichtete Relativbewegung erzeugen, um diese Kontaktflächen zu reinigen. Dadurch wird die Entstehung von isolierenden Schichten vermieden. Das Schaltwerk 62 hat eine hohe Lebenserwartung und baut kompakt und robust.

Figure 00000001
The invention is based on a pressure switch 10 which, in order to convert a pressure threshold value into an electrical signal, comprises a pressure chamber 50 with a protruding piston 46 and an electrical switch 60 which interacts with the piston 46. Its switching mechanism 62 has means 84, 86, 92, 96, which generate a relative movement between the contacts 94, 98, 100 parallel to the contact surfaces in order to clean these contact surfaces. This prevents the formation of insulating layers. The rear derailleur 62 has a long life expectancy and is compact and robust.
Figure 00000001
EP99102978A 1998-04-28 1999-02-15 Pressure switch Withdrawn EP0954000A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998118838 DE19818838C2 (en) 1998-04-28 1998-04-28 Pressure switch
DE19818838 1998-04-28

Publications (2)

Publication Number Publication Date
EP0954000A2 EP0954000A2 (en) 1999-11-03
EP0954000A3 true EP0954000A3 (en) 2000-07-05

Family

ID=7865970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102978A Withdrawn EP0954000A3 (en) 1998-04-28 1999-02-15 Pressure switch

Country Status (3)

Country Link
EP (1) EP0954000A3 (en)
JP (1) JPH11339612A (en)
DE (1) DE19818838C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10042011C1 (en) * 2000-08-26 2002-06-27 Bosch Gmbh Robert Push switch for controlling equipment operated by means of pressure has a pressure chamber with an inlet for a means of pressure and a piston protruding into the pressure chamber and impacted by the means of pressure.
DE102005049171A1 (en) * 2005-10-14 2007-04-19 Bosch Rexroth Ag Hydraulic pressure switch
DE102006034637B4 (en) * 2006-07-24 2016-07-21 Robert Bosch Gmbh Hydraulic pressure switch
DE202013100461U1 (en) 2013-02-01 2013-02-14 Hetec Limited Microswitch for a pressure switch with adjustable hysteresis and pressure switch with such microswitch
DE102016009027A1 (en) 2016-07-23 2018-01-25 Saurer Germany Gmbh & Co. Kg Converter for converting a fluidic into an electrical signal, textile machine with this converter and method for converting a fluidic into an electrical signal
DE102019108261A1 (en) * 2019-03-29 2020-10-01 Condor-Werke Gebr. Frede GmbH Pressure switching device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504381A (en) * 1948-03-05 1950-04-18 Cons Vultee Aircraft Corp Pressure operated switch
US2767276A (en) * 1954-06-18 1956-10-16 Buchanan Electric switch
FR1275855A (en) * 1959-12-11 1961-11-10 Electric switch
US3043929A (en) * 1960-02-25 1962-07-10 George G Guthrie Pressure actuated switch
DE7913018U1 (en) * 1979-05-05 1979-09-20 Robert Scheuffele & Co Armaturen U. Apparate, 7120 Bissingen Pressure switch in explosion-proof design
DE3238530A1 (en) * 1982-10-18 1984-04-26 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen Snap switch
DE3511898A1 (en) * 1985-04-01 1986-10-02 Reinhold Dipl.-Ing.(FH) 6990 Bad Mergentheim Barlian Snap-action switch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710107A1 (en) * 1987-03-31 1988-10-13 Hydrostar Dipl Ing Rolf Oehler Hydraulic pressure switch
DE8704718U1 (en) * 1987-03-31 1987-07-02 Delaval Turbine GmbH, 6361 Reichelsheim Pressure switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504381A (en) * 1948-03-05 1950-04-18 Cons Vultee Aircraft Corp Pressure operated switch
US2767276A (en) * 1954-06-18 1956-10-16 Buchanan Electric switch
FR1275855A (en) * 1959-12-11 1961-11-10 Electric switch
US3043929A (en) * 1960-02-25 1962-07-10 George G Guthrie Pressure actuated switch
DE7913018U1 (en) * 1979-05-05 1979-09-20 Robert Scheuffele & Co Armaturen U. Apparate, 7120 Bissingen Pressure switch in explosion-proof design
DE3238530A1 (en) * 1982-10-18 1984-04-26 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen Snap switch
DE3511898A1 (en) * 1985-04-01 1986-10-02 Reinhold Dipl.-Ing.(FH) 6990 Bad Mergentheim Barlian Snap-action switch

Also Published As

Publication number Publication date
DE19818838C2 (en) 2000-02-17
EP0954000A2 (en) 1999-11-03
DE19818838A1 (en) 1999-11-11
JPH11339612A (en) 1999-12-10

Similar Documents

Publication Publication Date Title
EP0954000A3 (en) Pressure switch
EP1166969A3 (en) Hand tool
ATE365372T1 (en) MICROMECHANICAL SWITCH, PRODUCTION METHOD AND APPLICATION OF MICROMECHANICAL SWITCH
ATE230957T1 (en) TOOTHBRUSH HAVING A BRUSH HOLDER THAT MOVES AGAINST A SPRING FORCE
ES2073427T3 (en) ELECTRICAL SWITCH STRUCTURE IN WHICH THE AXIAL FORCE OF ACTUATION IS JUST A SMALL PORTION OF THE CONTACT FORCE.
EP1796220A3 (en) Method of establishing electrical communication
EP1988585A3 (en) Multi-layer piezoelectric device
EP0858090A3 (en) Thermostat switch with a bimetal switch device
EP0886293A3 (en) Switch assembly
EP0766278A3 (en) Circuit breaker
EP1394831A3 (en) Electromechanical remote switch
EP0884344A3 (en) Mild surfactant compositions with copolymer polyaspartic acid derivatives for cosmetics or cleaning
DE10341333A1 (en) Contacted piezoelectric actuator
ATE246403T1 (en) ANODE STRUCTURE WITH CARBON COMPONENT WHICH HAS LOW CORROSION RESISTANCE
EP0843389A3 (en) Miniature jumper switch with wire contact maker
EP0809266A3 (en) Low tension switch device
NO951017L (en) Electrochemical Actor
DE3744604C2 (en)
FR2415377A1 (en) PLUG-IN CONNECTOR
EP0924725A3 (en) Dual contact arrangement for electrical switch
EP0948006A3 (en) Arrangement for indication of switching condition and consumption of the contacts of an electric switch
DE834414C (en) Luminous light pusher for staircase night lighting
EP0993003A3 (en) Safety contact rail or safety contact element
EP0776017A3 (en) Device for the reliable and permanent connection of a contact pair of an electromechanical switching device
EP0776021A3 (en) Electric switching device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010106

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566