GB1225302A - Temperature-Dependent control of the supply of current to an electrical appliance - Google Patents

Temperature-Dependent control of the supply of current to an electrical appliance

Info

Publication number
GB1225302A
GB1225302A GB2143968A GB2143968A GB1225302A GB 1225302 A GB1225302 A GB 1225302A GB 2143968 A GB2143968 A GB 2143968A GB 2143968 A GB2143968 A GB 2143968A GB 1225302 A GB1225302 A GB 1225302A
Authority
GB
United Kingdom
Prior art keywords
switch
threshold value
temperature
heater
metal
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.)
Expired
Application number
GB2143968A
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.)
SEG Hausgeraete GmbH
Original Assignee
Siemens Elektrogaerate GmbH
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 Siemens Elektrogaerate GmbH filed Critical Siemens Elektrogaerate GmbH
Publication of GB1225302A publication Critical patent/GB1225302A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • G05D23/303—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)

Abstract

1,225,302. Automatic temperature control systems. SIEMENS-ELECTROGERATE G.m.b.H. May 6, 1968 [May 5, 1967; Sept. 27, 1967], No.21439/68. Heading G3R. An electric heating element 1 e.g. in a hotplate is supplied through bi-metal switch 3-5 the heater of which is controlled by a threshold value switch e.g. a thyristor or breakdown diode so that when the temperature sensed e.g. by a thermistor 7 rises to a value set by a corresponding resistor 8, the threshold switch conducts hence causing the bi-metal switch to open. In an alternative arrangement Fig.2 (not shown), components 3, 7, 8, are arranged in a bridge network together with an added resistor 12. In a further arrangement Fig. 3 (not shown) the control circuit is fed from a tap on the heating element and the bi-metal heater is controlled by a transistor threshold value amplifier. In Fig. 4 (not shown) a diode is used a threshold value device controlling heater current to a reed relay (40, 42) and in Fig. 5 (not shown) a complementary pair of transistors (29, 34) are rendered conductive at the determined temperature with a lag of 90 degrees each half cycle, but in an alternative arrangement the lag may be reduced to zero by including an R. C. member (45) in the circuit.
GB2143968A 1967-05-05 1968-05-06 Temperature-Dependent control of the supply of current to an electrical appliance Expired GB1225302A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES0109730 1967-05-05
DES0112055 1967-09-27

Publications (1)

Publication Number Publication Date
GB1225302A true GB1225302A (en) 1971-03-17

Family

ID=25998775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2143968A Expired GB1225302A (en) 1967-05-05 1968-05-06 Temperature-Dependent control of the supply of current to an electrical appliance

Country Status (5)

Country Link
AT (1) AT283527B (en)
CH (1) CH464383A (en)
FR (1) FR1561786A (en)
GB (1) GB1225302A (en)
SE (1) SE332469B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031480A1 (en) * 1998-11-24 2000-06-02 Miller Europe S.P.A. Device for controlling the service loads of an electric household appliance, in particular a refrigerator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836882C2 (en) * 1978-08-23 1986-08-14 E.G.O. Elektro-Geräte AG, Zug Control device for electric hotplates
IT1191524B (en) * 1986-01-13 1988-03-23 Zanussi Elettrodomestici HOUSEHOLD APPLIANCE WITH ELECTRONIC PROGRAMMER WITH INTERFACE FOR THE CONTROL OF POWER BODIES
CN103049024A (en) * 2013-01-01 2013-04-17 李兴宁 Temperature controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000031480A1 (en) * 1998-11-24 2000-06-02 Miller Europe S.P.A. Device for controlling the service loads of an electric household appliance, in particular a refrigerator
US6660976B1 (en) 1998-11-24 2003-12-09 Itw Industrial Components S.R.L. Device for controlling the service loads of an electric household appliance, in particular a refrigerator
US6894253B2 (en) 1998-11-24 2005-05-17 Itw Industrial Components S.R.L. Device for controlling the service loads of an electric household appliance, in particular a refrigerator

Also Published As

Publication number Publication date
CH464383A (en) 1968-10-31
AT283527B (en) 1970-08-10
FR1561786A (en) 1969-03-28
SE332469B (en) 1971-02-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees