SI0621738T1 - Security device for an electric heating element against unacceptably reduced heat transfer - Google Patents
Security device for an electric heating element against unacceptably reduced heat transferInfo
- Publication number
- SI0621738T1 SI0621738T1 SI9430328T SI9430328T SI0621738T1 SI 0621738 T1 SI0621738 T1 SI 0621738T1 SI 9430328 T SI9430328 T SI 9430328T SI 9430328 T SI9430328 T SI 9430328T SI 0621738 T1 SI0621738 T1 SI 0621738T1
- Authority
- SI
- Slovenia
- Prior art keywords
- heat transfer
- reduced heat
- heating element
- electric heating
- security device
- Prior art date
Links
- 238000005485 electric heating Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
- H02H5/042—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors
- H02H5/043—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using temperature dependent resistors the temperature dependent resistor being disposed parallel to a heating wire, e.g. in a heating blanket
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
Landscapes
- Resistance Heating (AREA)
- Control Of Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Central Heating Systems (AREA)
- Control Of Temperature (AREA)
- Thermistors And Varistors (AREA)
Abstract
A security element (15) is provided as security for a tubular heater when running dry or in the case of another unacceptable handicap for the heat transfer, which security element consists of a heating resistor made of PTC material. It is thermally coupled in the same or a similar manner to the medium as the remaining heating resistor. In the case of an unacceptably reduced heat transfer the temperature rises rapidly due to the current impressed in the PTC element (15) and leads to the self-destruction of the security element. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4313339A DE4313339A1 (en) | 1993-04-23 | 1993-04-23 | Safety device of an electric heating element against inadmissible reduction in heat consumption |
EP94104939A EP0621738B1 (en) | 1993-04-23 | 1994-03-29 | Security device for an electric heating element against unacceptably reduced heat transfer |
Publications (1)
Publication Number | Publication Date |
---|---|
SI0621738T1 true SI0621738T1 (en) | 2000-08-31 |
Family
ID=6486217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SI9430328T SI0621738T1 (en) | 1993-04-23 | 1994-03-29 | Security device for an electric heating element against unacceptably reduced heat transfer |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0621738B1 (en) |
AT (1) | ATE190456T1 (en) |
DE (2) | DE4313339A1 (en) |
ES (1) | ES2145788T3 (en) |
SI (1) | SI0621738T1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19936112A1 (en) * | 1999-07-31 | 2001-02-01 | Mannesmann Vdo Ag | Semiconductor switch |
DE10048181B4 (en) * | 2000-09-28 | 2011-08-11 | Gustav Magenwirth GmbH & Co. KG, 72574 | Vehicle with a heated throttle grip |
AU2003201228A1 (en) * | 2003-01-02 | 2004-07-29 | Genadiy A. Govor | Monolithic self-regulating metal-ceramic heater |
DE102007040891A1 (en) | 2007-08-24 | 2009-04-30 | E.G.O. Elektro-Gerätebau GmbH | Heating device, method for operating a heater and electric heater with such a heater |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7337055U (en) * | 1974-01-10 | Siemens Ag | Electric tubular heater | |
GB1096988A (en) * | 1965-11-23 | 1967-12-29 | Lindsay Sydney Little | Overload control for electric heater elements |
NL6807398A (en) * | 1968-05-24 | 1969-11-26 | ||
DE7431104U (en) * | 1974-09-16 | 1974-12-12 | Stiebel Eltron Gmbh & Co Kg | Safety device for electric tubular heating elements |
US4276466A (en) * | 1979-05-11 | 1981-06-30 | Raychem Corporation | Heater with distributed heating element |
US4697069A (en) * | 1983-08-22 | 1987-09-29 | Ingo Bleckmann | Tubular heater with an overload safety means |
EP0204850A1 (en) * | 1985-06-05 | 1986-12-17 | Elpag Ag Chur | Tubular heating element |
GB2186446B (en) * | 1986-02-10 | 1990-08-29 | Dubilier Plc | Time-lag fuses |
FR2597222A1 (en) * | 1986-04-11 | 1987-10-16 | Ciapem | Apparatus equipped with an electrical heating resistance |
DE4014753A1 (en) * | 1990-05-08 | 1991-11-14 | Elpag Ag Chur | PIPE RADIATOR WITH FUSE |
-
1993
- 1993-04-23 DE DE4313339A patent/DE4313339A1/en not_active Withdrawn
-
1994
- 1994-03-29 EP EP94104939A patent/EP0621738B1/en not_active Expired - Lifetime
- 1994-03-29 SI SI9430328T patent/SI0621738T1/en unknown
- 1994-03-29 ES ES94104939T patent/ES2145788T3/en not_active Expired - Lifetime
- 1994-03-29 DE DE59409176T patent/DE59409176D1/en not_active Expired - Fee Related
- 1994-03-29 AT AT94104939T patent/ATE190456T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0621738A3 (en) | 1994-12-14 |
DE4313339A1 (en) | 1994-11-03 |
EP0621738B1 (en) | 2000-03-08 |
ES2145788T3 (en) | 2000-07-16 |
ATE190456T1 (en) | 2000-03-15 |
EP0621738A2 (en) | 1994-10-26 |
DE59409176D1 (en) | 2000-04-13 |
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