GB2017411A - A thermostat having magnetically- operable moving parts - Google Patents

A thermostat having magnetically- operable moving parts

Info

Publication number
GB2017411A
GB2017411A GB7909781A GB7909781A GB2017411A GB 2017411 A GB2017411 A GB 2017411A GB 7909781 A GB7909781 A GB 7909781A GB 7909781 A GB7909781 A GB 7909781A GB 2017411 A GB2017411 A GB 2017411A
Authority
GB
United Kingdom
Prior art keywords
thermostat
permanent magnet
air gap
magnetically
moving parts
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Withdrawn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
GB7909781A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB2017411A publication Critical patent/GB2017411A/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Withdrawn legal-status Critical Current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
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability

Landscapes

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

Abstract

In a thermostat comprising a permanent magnet 14 movable, in response to a temperature change sensed by a fixed magnetic sensor 10, and against the force of a spring 4, to actuate switch contacts 35, 36, the permanent magnet 14 comprises material having a maximum energy product of at least 50 kilojoules per cubic metre, an air gap exists between the permanent magnet 14 and the sensor 10 at all times, the spring force is adjustable when the air gap is at a minimum, and the maximum air gap is adjustable. <IMAGE>
GB7909781A 1978-03-22 1979-03-20 A thermostat having magnetically- operable moving parts Withdrawn GB2017411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782812513 DE2812513A1 (en) 1978-03-22 1978-03-22 THERMOMAGNETIC THERMOSTAT

Publications (1)

Publication Number Publication Date
GB2017411A true GB2017411A (en) 1979-10-03

Family

ID=6035170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909781A Withdrawn GB2017411A (en) 1978-03-22 1979-03-20 A thermostat having magnetically- operable moving parts

Country Status (9)

Country Link
JP (1) JPS54132785A (en)
DE (1) DE2812513A1 (en)
DK (1) DK114879A (en)
ES (1) ES478704A1 (en)
FR (1) FR2420838A1 (en)
GB (1) GB2017411A (en)
IT (1) IT7967584A0 (en)
NL (1) NL7902146A (en)
SE (1) SE7902443L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663678A1 (en) * 1994-01-14 1995-07-19 Cotherm Temperature limiter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663678A1 (en) * 1994-01-14 1995-07-19 Cotherm Temperature limiter

Also Published As

Publication number Publication date
IT7967584A0 (en) 1979-03-21
DE2812513A1 (en) 1979-09-27
SE7902443L (en) 1979-09-23
FR2420838A1 (en) 1979-10-19
ES478704A1 (en) 1979-05-16
JPS54132785A (en) 1979-10-16
NL7902146A (en) 1979-09-25
DK114879A (en) 1979-09-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)