WO2001099134A3 - A pressure switch provided with a thermal cut-out - Google Patents

A pressure switch provided with a thermal cut-out Download PDF

Info

Publication number
WO2001099134A3
WO2001099134A3 PCT/EP2001/006908 EP0106908W WO0199134A3 WO 2001099134 A3 WO2001099134 A3 WO 2001099134A3 EP 0106908 W EP0106908 W EP 0106908W WO 0199134 A3 WO0199134 A3 WO 0199134A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
electrical contacts
support structure
cut
opening
Prior art date
Application number
PCT/EP2001/006908
Other languages
French (fr)
Other versions
WO2001099134A2 (en
Inventor
Lorenzo Arrabito
Original Assignee
Ne Ma S P A
Lorenzo Arrabito
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 Ne Ma S P A, Lorenzo Arrabito filed Critical Ne Ma S P A
Priority to DE60100273T priority Critical patent/DE60100273T2/en
Priority to AT01957864T priority patent/ATE240583T1/en
Priority to AU2001279671A priority patent/AU2001279671A1/en
Priority to EP01957864A priority patent/EP1212769B1/en
Publication of WO2001099134A2 publication Critical patent/WO2001099134A2/en
Publication of WO2001099134A3 publication Critical patent/WO2001099134A3/en

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/62—Manual reset mechanisms which may be also used for manual release with means for preventing resetting while abnormal condition persists, e.g. loose handle arrangement
    • 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
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • 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

Abstract

A pressure switch for a compressor or similar apparatus which can supply a fluid under pressure and is driven by an electric motor, comprises a support structure (1), a diaphragm (4) which is fixed to the support structure (1) and is intended to be exposed to the pressurized fluid, electrical contacts (9, 10, 11, 12) mounted on the support structure (1) and arranged for movement towards and away from one another between a position of closure and a position of opening of an electrical-supply circuit of the electric motor, a manually-operated control member (3) movable between two positions in which the electrical contacts are in the positions of opening and of closure of the electrical circuit, and a lever mechanism (14) operatively associated with the diaphragm (4) and with the electrical contacts in a manner such that, when a pressure above a predetermined threshold value is applied to the diaphragm, the lever mechanism brings about movement of the electrical contacts to the opening position, and is characterized in that it comprises a temperature-sensitive thermal cut-out (17) which is mounted on the support structure (1), in series with the electrical supply circuit of the motor, and is arranged to open the electrical-supply circuit automatically when the temperature exceeds a predetermined value, the cut-out being operable manually in order to be reset to a closure position which is stable when the temperature is below the predetermined value, and the cut-out being operatively associated with the control member (3) in a manner such that the cut-out is reset to its closure position as a result of the movement of the control member to its position which brings about opening of the electrical contacts.
PCT/EP2001/006908 2000-06-20 2001-06-19 A pressure switch provided with a thermal cut-out WO2001099134A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60100273T DE60100273T2 (en) 2000-06-20 2001-06-19 PRESSURE SWITCH WITH THERMAL SWITCH
AT01957864T ATE240583T1 (en) 2000-06-20 2001-06-19 PRESSURE SWITCH WITH THERMAL OFF SWITCH
AU2001279671A AU2001279671A1 (en) 2000-06-20 2001-06-19 A pressure switch provided with a thermal cut-out
EP01957864A EP1212769B1 (en) 2000-06-20 2001-06-19 A pressure switch provided with a thermal cut-out

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2000A000590 2000-06-20
IT2000TO000590A IT1320508B1 (en) 2000-06-20 2000-06-20 PRESSURE SWITCH EQUIPPED WITH A THERMAL PROTECTION SWITCH.

Publications (2)

Publication Number Publication Date
WO2001099134A2 WO2001099134A2 (en) 2001-12-27
WO2001099134A3 true WO2001099134A3 (en) 2002-03-14

Family

ID=11457832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/006908 WO2001099134A2 (en) 2000-06-20 2001-06-19 A pressure switch provided with a thermal cut-out

Country Status (6)

Country Link
EP (1) EP1212769B1 (en)
AT (1) ATE240583T1 (en)
AU (1) AU2001279671A1 (en)
DE (1) DE60100273T2 (en)
IT (1) IT1320508B1 (en)
WO (1) WO2001099134A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20090188U1 (en) 2009-12-14 2011-06-15 Ne Ma S P A PRESSURE SWITCH PROVIDED WITH A COUNTER-HOUR DEVICE
CN102420075B (en) * 2010-09-27 2013-08-28 中国北车集团大同电力机车有限责任公司 Pressure switch
US8845301B2 (en) 2011-06-29 2014-09-30 Ford Global Technologies, Llc Compressor control method
CN104323707B (en) * 2014-11-10 2016-09-14 佛山市高明欧一电子制造有限公司 The pressure breaker safe device of electric pressure cooking saucepan Non auto-reset
EP3199888A1 (en) * 2016-01-29 2017-08-02 Daikin Industries, Limited Air conditioning system
CN107611926B (en) 2017-09-15 2020-11-06 珠海格力电器股份有限公司 Overload protection device and method, storage medium, compressor and electric appliance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB434064A (en) * 1934-01-29 1935-08-26 Igranic Electric Co Ltd Improvements in or relating to circuit controlling devices, particularly applicable to electric refrigerators
US2257477A (en) * 1938-10-07 1941-09-30 Honeywell Regulator Co Combined pressure and safety switch
FR1355293A (en) * 1963-04-30 1964-03-13 Improvements to the regulation and protection equipment for motor pump or motor-compressor sets
US4124833A (en) * 1976-02-11 1978-11-07 Stoger Max H Overcurrent protection equipment
US5552646A (en) * 1994-11-01 1996-09-03 Condor Werke-Gebruder Frede Gmbh & Co Kg Compact control and monitoring switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB434064A (en) * 1934-01-29 1935-08-26 Igranic Electric Co Ltd Improvements in or relating to circuit controlling devices, particularly applicable to electric refrigerators
US2257477A (en) * 1938-10-07 1941-09-30 Honeywell Regulator Co Combined pressure and safety switch
FR1355293A (en) * 1963-04-30 1964-03-13 Improvements to the regulation and protection equipment for motor pump or motor-compressor sets
US4124833A (en) * 1976-02-11 1978-11-07 Stoger Max H Overcurrent protection equipment
US5552646A (en) * 1994-11-01 1996-09-03 Condor Werke-Gebruder Frede Gmbh & Co Kg Compact control and monitoring switch

Also Published As

Publication number Publication date
WO2001099134A2 (en) 2001-12-27
EP1212769B1 (en) 2003-05-14
ITTO20000590A0 (en) 2000-06-20
DE60100273T2 (en) 2004-04-08
ITTO20000590A1 (en) 2001-12-20
EP1212769A2 (en) 2002-06-12
ATE240583T1 (en) 2003-05-15
IT1320508B1 (en) 2003-12-10
AU2001279671A1 (en) 2002-01-02
DE60100273D1 (en) 2003-06-18

Similar Documents

Publication Publication Date Title
WO2001099134A3 (en) A pressure switch provided with a thermal cut-out
EP0362871A3 (en) Remote-controlled circuit breaker
US2671838A (en) Condition responsive device
GB644520A (en) Improvements in or relating to snap-action electric switches
WO2001056437A3 (en) Controls for electric liquid heating vessels
KR100673091B1 (en) Temperature control switch
US5685481A (en) Trip-free high limit control
US2558908A (en) Circuit breaker switch
ES2199025A1 (en) Door locking device
PT872867E (en) ELECTRICAL ASSEMBLY WITH CONTROL DEVICE FOR A CIRCUIT BREAKER
EP1093144A3 (en) Auxiliary position switch assembly for a circuit breaker
US3370142A (en) Condition detecting control with means to enable the system to return to its first position upon a slight change of condition
US3194916A (en) Fluid operated switch actuator
WO2003016204A1 (en) Actuator and switch
US2020485A (en) Pressure switch
US2750474A (en) Magnetic actuating mechanism
KR840001768A (en) Electric switch controlled by thermostat
EP0291835B1 (en) Temperature responsive device and circuit breaker
CN218939530U (en) Low-temperature-resistant plug-in temperature controller
PL1515352T3 (en) Device to interrupt electrical current with with a translatory movable contact
US3109902A (en) Pressure control switch
KR890016604A (en) Switching elements for thermal equipment
US3470512A (en) Thermostatic switch having elements responsive to ambient temperature and current flow
JPS5790479A (en) Gas flow rate control apparatus
GB1447105A (en) Thermal circuit breaker

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2001957864

Country of ref document: EP

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWP Wipo information: published in national office

Ref document number: 2001957864

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 2001957864

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP