FR2421455A1 - CIRCUIT BREAKER OR THERMAL SWITCH SENSITIVE TO AMBIENT TEMPERATURE - Google Patents

CIRCUIT BREAKER OR THERMAL SWITCH SENSITIVE TO AMBIENT TEMPERATURE

Info

Publication number
FR2421455A1
FR2421455A1 FR7907665A FR7907665A FR2421455A1 FR 2421455 A1 FR2421455 A1 FR 2421455A1 FR 7907665 A FR7907665 A FR 7907665A FR 7907665 A FR7907665 A FR 7907665A FR 2421455 A1 FR2421455 A1 FR 2421455A1
Authority
FR
France
Prior art keywords
housing
circuit breaker
arms
ambient temperature
thermal switch
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Withdrawn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
FR7907665A
Other languages
French (fr)
Inventor
Harry W Olson
James M Borzoni
Murray G Clay
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.)
Littelfuse Inc
Original Assignee
Littelfuse Inc
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 Littelfuse Inc filed Critical Littelfuse Inc
Publication of FR2421455A1 publication Critical patent/FR2421455A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/764—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet
    • H01H37/765—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material in which contacts are held closed by a thermal pellet using a sliding contact between a metallic cylindrical housing and a central electrode

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

Coupure de circuits électriques. Le disjoncteur comprend un boîtier de matière conductrice de l'électricité, un premier conducteur 10 placé dans celui-ci et présentant des bras de contact 10a déformables, un second conducteur 6 réalisant une liaison permanente à faible résistance avec le boîtier, un empilage d'éléments maintenus sous une pression élastique et comprenant au moins un ressort 20, 26, un corps fusible 16 fondant à une température de commande donnée, un organe 24 pour déformer les bras vers l'intérieur et les amener hors de contact du boîtier et un organe d'appui 13 pour amener les bras contre le boîtier. Dispositifs électriques nécessitant une protection thermique, tels que les enroulements des gros moteurs électriques.Cutting of electrical circuits. The circuit breaker comprises a housing of electrically conductive material, a first conductor 10 placed therein and having deformable contact arms 10a, a second conductor 6 providing a permanent low resistance connection with the housing, a stack of elements maintained under an elastic pressure and comprising at least a spring 20, 26, a fusible body 16 melting at a given control temperature, a member 24 for deforming the arms inwards and bringing them out of contact with the housing and a member support 13 to bring the arms against the housing. Electrical devices requiring thermal protection, such as the windings of large electric motors.

FR7907665A 1978-03-28 1979-03-27 CIRCUIT BREAKER OR THERMAL SWITCH SENSITIVE TO AMBIENT TEMPERATURE Withdrawn FR2421455A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89102078A 1978-03-28 1978-03-28

Publications (1)

Publication Number Publication Date
FR2421455A1 true FR2421455A1 (en) 1979-10-26

Family

ID=25397492

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907665A Withdrawn FR2421455A1 (en) 1978-03-28 1979-03-27 CIRCUIT BREAKER OR THERMAL SWITCH SENSITIVE TO AMBIENT TEMPERATURE

Country Status (6)

Country Link
JP (1) JPS54161079A (en)
CA (1) CA1118473A (en)
DE (1) DE2911950A1 (en)
FR (1) FR2421455A1 (en)
GB (1) GB2021865B (en)
IT (1) IT1192642B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466093A1 (en) * 1979-09-26 1981-03-27 Nifco Inc THERMAL RUPTEUR

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6024041U (en) * 1983-07-26 1985-02-19 関西日本電気株式会社 electronic components
JPS6258843U (en) * 1985-09-30 1987-04-11
AT394914B (en) * 1990-10-25 1992-07-27 Electrovac THERMAL SWITCH

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233792A1 (en) * 1971-07-16 1973-01-25 Micro Devices Corp ELECTRIC SWITCH
US3930215A (en) * 1974-11-29 1975-12-30 Texas Instruments Inc Nonresettable thermally actuated switch
US3944960A (en) * 1974-11-29 1976-03-16 Texas Instruments Incorporated Nonresettable thermally actuated switch
US4075596A (en) * 1976-08-23 1978-02-21 Emerson Electric Co. Sealed casing for a thermally actuable electrical switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233792A1 (en) * 1971-07-16 1973-01-25 Micro Devices Corp ELECTRIC SWITCH
US3930215A (en) * 1974-11-29 1975-12-30 Texas Instruments Inc Nonresettable thermally actuated switch
US3944960A (en) * 1974-11-29 1976-03-16 Texas Instruments Incorporated Nonresettable thermally actuated switch
US4075596A (en) * 1976-08-23 1978-02-21 Emerson Electric Co. Sealed casing for a thermally actuable electrical switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466093A1 (en) * 1979-09-26 1981-03-27 Nifco Inc THERMAL RUPTEUR

Also Published As

Publication number Publication date
CA1118473A (en) 1982-02-16
IT7921250A0 (en) 1979-03-23
GB2021865B (en) 1982-09-29
DE2911950A1 (en) 1979-10-11
JPS54161079A (en) 1979-12-20
GB2021865A (en) 1979-12-05
IT1192642B (en) 1988-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse