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EP0754347A1 - Protective device against thermal overload for a small high-heat-load electric motor - Google Patents

Protective device against thermal overload for a small high-heat-load electric motor

Info

Publication number
EP0754347A1
EP0754347A1 EP95915749A EP95915749A EP0754347A1 EP 0754347 A1 EP0754347 A1 EP 0754347A1 EP 95915749 A EP95915749 A EP 95915749A EP 95915749 A EP95915749 A EP 95915749A EP 0754347 A1 EP0754347 A1 EP 0754347A1
Authority
EP
European Patent Office
Prior art keywords
pct
heat
support
electric motor
protective device
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.)
Granted
Application number
EP95915749A
Other languages
German (de)
French (fr)
Other versions
EP0754347B1 (en
Inventor
Rögelein Dieter
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.)
ROEGELEIN DIETER
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 EP0754347A1 publication Critical patent/EP0754347A1/en
Application granted granted Critical
Publication of EP0754347B1 publication Critical patent/EP0754347B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H81/00—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting
    • H01H81/02—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting electrothermally operated

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

PCT No. PCT/DE95/00464 Sec. 371 Date Oct. 7, 1996 Sec. 102(e) Date Oct. 7, 1996 PCT Filed Apr. 5, 1995 PCT Pub. No. WO95/27302 PCT Pub. Date Oct. 12, 1995A device for protecting a fractional-horsepower motor from overheating. The motor is intended to accommodate a high heat load. Its power supply accommodates a make-or-break switch. A bimetal component opens the switch once a certain temperature has been attained. The bimetal component is mounted on a support. The switch, the bimetal component, and its support are electrically connected in series. There is a specific ratio between the electrical impedance and heat capacity of the bimetal component and those of its support, and they are extensively in surface-to-surface contact.
EP95915749A 1994-04-05 1995-04-05 Protective device against thermal overload for a small high-heat-load electric motor Expired - Lifetime EP0754347B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4411712A DE4411712A1 (en) 1994-04-05 1994-04-05 Protective device against the thermal load of a small electric motor for high thermal resilience
DE4411712 1994-04-05
PCT/DE1995/000464 WO1995027302A1 (en) 1994-04-05 1995-04-05 Protective device against thermal overload for a small high-heat-load electric motor

Publications (2)

Publication Number Publication Date
EP0754347A1 true EP0754347A1 (en) 1997-01-22
EP0754347B1 EP0754347B1 (en) 1998-01-14

Family

ID=6514668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915749A Expired - Lifetime EP0754347B1 (en) 1994-04-05 1995-04-05 Protective device against thermal overload for a small high-heat-load electric motor

Country Status (6)

Country Link
US (1) US5854584A (en)
EP (1) EP0754347B1 (en)
JP (1) JPH09511091A (en)
AT (1) ATE162337T1 (en)
DE (2) DE4411712A1 (en)
WO (1) WO1995027302A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100356652C (en) * 2005-09-26 2007-12-19 常熟市天银机电有限公司 Overload protector of single-phase AC motor
DE202007000363U1 (en) * 2007-01-10 2008-05-15 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Motorized actuator
CN104734571A (en) * 2015-03-16 2015-06-24 常熟市天银机电股份有限公司 Energy-saving integrated type single-phase alternating current motor starting protector
CN105551904A (en) * 2016-01-22 2016-05-04 江苏常胜电器股份有限公司 Dual voltage current inlaid protector
DE202018103227U1 (en) 2018-06-08 2019-09-11 Inter Control Hermann Köhler Elektrik GmbH & Co. KG electric motor
JP7063253B2 (en) * 2018-11-30 2022-05-09 横河電機株式会社 Field equipment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738071C (en) * 1941-10-15 1943-08-02 Siemens Ag Thermal release for electrical switches
FR1254240A (en) * 1959-04-15 1961-02-17 Texas Instruments Inc Advanced thermostatic switch
DE1947186C3 (en) * 1969-09-18 1975-02-06 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bimetal release
US3959762A (en) * 1974-12-09 1976-05-25 Texas Instruments Incorporated Thermally responsive electrical switch
US4086558A (en) * 1976-02-09 1978-04-25 Texas Instruments Incorporated Motor protector and system
US4399423A (en) * 1982-03-29 1983-08-16 Texas Instruments Incorporated Miniature electric circuit protector
GB2133931B (en) * 1983-01-21 1987-01-07 Otter Controls Ltd Electric motor protection switches
GB8301624D0 (en) * 1983-01-21 1983-02-23 Otter Controls Ltd Electric switches
EP0128978B1 (en) * 1983-06-20 1987-09-02 Texas Instruments Holland B.V. Thermostat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9527302A1 *

Also Published As

Publication number Publication date
WO1995027302A1 (en) 1995-10-12
JPH09511091A (en) 1997-11-04
US5854584A (en) 1998-12-29
EP0754347B1 (en) 1998-01-14
DE4411712A1 (en) 1995-10-12
DE59501292D1 (en) 1998-02-19
ATE162337T1 (en) 1998-01-15

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