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GB2021322A - Temperature-sensitive switch for electrically heated appliances - Google Patents

Temperature-sensitive switch for electrically heated appliances

Info

Publication number
GB2021322A
GB2021322A GB7917275A GB7917275A GB2021322A GB 2021322 A GB2021322 A GB 2021322A GB 7917275 A GB7917275 A GB 7917275A GB 7917275 A GB7917275 A GB 7917275A GB 2021322 A GB2021322 A GB 2021322A
Authority
GB
United Kingdom
Prior art keywords
contact
temperature
contact carrier
secured
appliance
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
GB7917275A
Other versions
GB2021322B (en
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.)
INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
Original Assignee
INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
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
Priority claimed from DE19782821457 external-priority patent/DE2821457A1/en
Priority claimed from DE19792904341 external-priority patent/DE2904341C2/en
Application filed by INTER CONTROL Hermann Koehler Electrik GmbH and Co KG filed Critical INTER CONTROL Hermann Koehler Electrik GmbH and Co KG
Publication of GB2021322A publication Critical patent/GB2021322A/en
Application granted granted Critical
Publication of GB2021322B publication Critical patent/GB2021322B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—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
    • 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
    • H01H2037/5481—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element being mounted on the contact spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/002—Thermally-actuated switches combined with protective means

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

A temperature-sensitive switch for monitoring an electrically heated appliance comprises a movable contact (4) mounted on one end of a resilient contact carrier (2) which is secured at its other end to an insulating switch mounting (1), a fixed contact (5) secured to the switch mounting and normally engaged by the movable contact (4) to connect the appliance to an electric current source and at least one snap-over bimetallic plate (10, 16) operable on the contact carrier to shift the movable contact (4) out of engagement with the fixed contact (5) and so break the supply circuit to the appliance when the temperature of the latter reaches a predetermined value. Two bimetallic plates (10, 16) may be disposed on opposite sides of the contact carrier (2), the lower plate (16) snapping over at a higher temperature than the other (10) and not returning to its origin; position after snapping whereby the contacts (4, 5) remain open. The bimetallic plate may engage a lug bent up from the contact carrier and may be secured against lateral movement by lugs on the contact carrier. <IMAGE>
GB7917275A 1978-05-17 1979-05-17 Temperature-sensitive switch for electrically heated appliances Expired GB2021322B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782821457 DE2821457A1 (en) 1978-05-17 1978-05-17 Bimetallic strip temp. switch for appliance - has spring linked to strip with cylindrical bolt in hole acting as pivot
DE19792904341 DE2904341C2 (en) 1979-02-06 1979-02-06 Temperature switch for electrically heated devices

Publications (2)

Publication Number Publication Date
GB2021322A true GB2021322A (en) 1979-11-28
GB2021322B GB2021322B (en) 1982-09-29

Family

ID=25774486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917275A Expired GB2021322B (en) 1978-05-17 1979-05-17 Temperature-sensitive switch for electrically heated appliances

Country Status (2)

Country Link
FR (1) FR2426326A1 (en)
GB (1) GB2021322B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041823A1 (en) * 1980-06-06 1981-12-16 THE GENERAL ELECTRIC COMPANY, p.l.c. Thermally responsive switches
DE3114256A1 (en) * 1980-04-09 1982-03-25 Aisin Seiki K.K., Kariya, Aichi "SWITCH APPROACHING TEMPERATURE"
DE3141226A1 (en) * 1980-12-10 1982-06-24 Matsushita Electric Works Ltd., Kadoma, Osaka "THERMAL SWITCH"
DE3104827A1 (en) * 1981-02-11 1982-08-19 Limitor AG, 8022 Zürich "BIMETAL TEMPERATURE SWITCH"
EP0069861A2 (en) * 1981-07-15 1983-01-19 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Thermostat for electrically heated apparatuses
DE3612251A1 (en) * 1985-04-12 1986-10-23 Sinisa Zagreb Bogdanic Self-operated bimetallic temperature-protection circuit breaker
EP1845545A1 (en) * 2005-02-02 2007-10-17 Uchiya Thermostat Co., Ltd. Thermostat

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918491A (en) * 1930-12-02 1933-07-18 Gen Plate Co Thermostatically controlled circuit controller
US2916586A (en) * 1955-06-17 1959-12-08 Cutler Hammer Inc Thermal switches
US3601741A (en) * 1969-08-21 1971-08-24 Therm O Disc Inc Thermostat
DE2316155C3 (en) * 1973-03-31 1978-09-28 Microtherm Gmbh, 7530 Pforzheim Thermal switch

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114256A1 (en) * 1980-04-09 1982-03-25 Aisin Seiki K.K., Kariya, Aichi "SWITCH APPROACHING TEMPERATURE"
EP0041823A1 (en) * 1980-06-06 1981-12-16 THE GENERAL ELECTRIC COMPANY, p.l.c. Thermally responsive switches
DE3141226A1 (en) * 1980-12-10 1982-06-24 Matsushita Electric Works Ltd., Kadoma, Osaka "THERMAL SWITCH"
DE3104827A1 (en) * 1981-02-11 1982-08-19 Limitor AG, 8022 Zürich "BIMETAL TEMPERATURE SWITCH"
EP0058372A1 (en) * 1981-02-11 1982-08-25 Limitor AG Thermal switch with bimetallic element
EP0069861A2 (en) * 1981-07-15 1983-01-19 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Thermostat for electrically heated apparatuses
EP0069861A3 (en) * 1981-07-15 1984-10-17 INTER CONTROL Hermann Köhler Elektrik GmbH u. Co. KG Thermostat for electrically heated apparatuses
DE3612251A1 (en) * 1985-04-12 1986-10-23 Sinisa Zagreb Bogdanic Self-operated bimetallic temperature-protection circuit breaker
EP1845545A1 (en) * 2005-02-02 2007-10-17 Uchiya Thermostat Co., Ltd. Thermostat
EP1845545A4 (en) * 2005-02-02 2011-03-30 Uchiya Thermostat Thermostat

Also Published As

Publication number Publication date
FR2426326A1 (en) 1979-12-14
GB2021322B (en) 1982-09-29
FR2426326B1 (en) 1984-12-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920517