HK1006773A1 - Electrical device comprising conductive polymers - Google Patents
Electrical device comprising conductive polymersInfo
- Publication number
- HK1006773A1 HK1006773A1 HK98105929A HK98105929A HK1006773A1 HK 1006773 A1 HK1006773 A1 HK 1006773A1 HK 98105929 A HK98105929 A HK 98105929A HK 98105929 A HK98105929 A HK 98105929A HK 1006773 A1 HK1006773 A1 HK 1006773A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- ptc
- resistor
- conductive polymer
- electrical device
- conductive polymers
- Prior art date
Links
- 229920001940 conductive polymer Polymers 0.000 title abstract 3
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- 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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
-
- 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
- H05B3/14—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 the material being non-metallic
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
Landscapes
- Thermistors And Varistors (AREA)
- Conductive Materials (AREA)
- Resistance Heating (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Multicomponent Fibers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Silicon Polymers (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Circuit protection systems which comprise a PTC resistor (1) and a second resistor (6), e.g. a thick film resistor (6), which is thermally and electrically connected to the PTC resistor have a break current IB and a hold current IH such that the ratio IB/IH is at most 20. Suitable PTC resistors (1) are conductive polymer devices which comprise a PTC element (10) which has been radiation crosslinked under conditions such that the average dose rate is at most 3.0 Mrad/minute or during which no part of the PTC element (10) which is in contact with the electrodes (2, 3) reaches a temperature greater than (Tm-60) DEG C, where Tm is the melting point of the polymeric component of the conductive polymer (10).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/102,987 US4907340A (en) | 1987-09-30 | 1987-09-30 | Electrical device comprising conductive polymers |
US11508987A | 1987-10-30 | 1987-10-30 | |
US12469687A | 1987-11-24 | 1987-11-24 | |
PCT/US1988/003377 WO1989003162A1 (en) | 1987-09-30 | 1988-09-30 | Electrical device comprising conductive polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1006773A1 true HK1006773A1 (en) | 1999-03-12 |
Family
ID=27379448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98105929A HK1006773A1 (en) | 1987-09-30 | 1998-06-22 | Electrical device comprising conductive polymers |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0390807B1 (en) |
JP (2) | JP3335348B2 (en) |
KR (1) | KR890702405A (en) |
AT (1) | ATE145512T1 (en) |
DE (1) | DE3855679T2 (en) |
HK (1) | HK1006773A1 (en) |
WO (1) | WO1989003162A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2573665Y2 (en) * | 1991-07-18 | 1998-06-04 | 株式会社村田製作所 | Surge absorber with built-in resistor |
ATE221693T1 (en) * | 1997-07-01 | 2002-08-15 | Tyco Electronics Logistics Ag | HYBRID CIRCUIT ARRANGEMENT WITH OVERLOAD PROTECTION |
KR20030024256A (en) * | 2001-09-17 | 2003-03-26 | 주식회사 쎄라텍 | Manufacturing method for polymer positive temperature coefficient thermistor |
US9175146B2 (en) | 2006-08-08 | 2015-11-03 | Sabic Global Technologies B.V. | Thermal conductive polymeric PTC compositions |
SE530660C2 (en) * | 2006-10-17 | 2008-08-05 | Conflux Ab | Positive temperature coefficient superimposed impedance polymeric compound used in heating elements comprises electrically insulating matrix with amorphous polymer and two electrically conductive particles having different surface energies |
JP2007059952A (en) * | 2006-12-04 | 2007-03-08 | Tdk Corp | Manufacturing method of p-ptc thermistor composition, p-ptc thermistor composition, p-ptc thermistor element body, and p-ptc thermistor |
JP2008213661A (en) * | 2007-03-05 | 2008-09-18 | Misato Kk | Vehicular planar heat generation body and vehicle heating device using this |
US20110188166A1 (en) * | 2008-07-10 | 2011-08-04 | Hiroyuki Koyama | PTC Device and Electrical Apparatus Containing the Same |
KR101129251B1 (en) * | 2009-10-13 | 2012-03-26 | (주) 유니플라텍 | Method for manufacturing of ptc device and its system for preventing overheating of planar heaters using the same |
CN104411030B (en) * | 2014-11-27 | 2016-08-24 | 芜湖敬创电子科技有限公司 | Eliminate faradic heating element device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4413301A (en) * | 1980-04-21 | 1983-11-01 | Raychem Corporation | Circuit protection devices comprising PTC element |
US4400614A (en) * | 1980-05-19 | 1983-08-23 | Raychem Corporation | PTC Devices and their preparation |
FR2525858A1 (en) * | 1982-04-29 | 1983-11-04 | Burton Corblin | TANK FOR THE PREPARATION OF QUILLED FOR THE MANUFACTURE OF CHEESES |
FR2528253A1 (en) * | 1982-06-04 | 1983-12-09 | Jaeger | Overvoltage protection circuit for electronic components - has zener diode and PTC resistor connected in series and in good thermal contact |
NL8202666A (en) * | 1982-07-02 | 1984-02-01 | Philips Nv | NET VOLTAGE DISCRIMINATION DEVICE. |
US4514620A (en) * | 1983-09-22 | 1985-04-30 | Raychem Corporation | Conductive polymers exhibiting PTC characteristics |
US4724417A (en) * | 1985-03-14 | 1988-02-09 | Raychem Corporation | Electrical devices comprising cross-linked conductive polymers |
US4743321A (en) * | 1985-10-04 | 1988-05-10 | Raychem Corporation | Devices comprising PTC conductive polymers |
-
1988
- 1988-09-30 WO PCT/US1988/003377 patent/WO1989003162A1/en active IP Right Grant
- 1988-09-30 EP EP88909937A patent/EP0390807B1/en not_active Expired - Lifetime
- 1988-09-30 AT AT88909937T patent/ATE145512T1/en not_active IP Right Cessation
- 1988-09-30 KR KR1019890700951A patent/KR890702405A/en not_active Application Discontinuation
- 1988-09-30 JP JP50911888A patent/JP3335348B2/en not_active Expired - Lifetime
- 1988-09-30 DE DE3855679T patent/DE3855679T2/en not_active Expired - Lifetime
-
1998
- 1998-06-22 HK HK98105929A patent/HK1006773A1/en not_active IP Right Cessation
- 1998-07-27 JP JP21085998A patent/JP3181263B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3855679D1 (en) | 1997-01-02 |
JP3335348B2 (en) | 2002-10-15 |
JPH11150003A (en) | 1999-06-02 |
EP0390807A1 (en) | 1990-10-10 |
DE3855679T2 (en) | 1997-06-19 |
JP3181263B2 (en) | 2001-07-03 |
EP0390807A4 (en) | 1991-03-13 |
KR890702405A (en) | 1989-12-23 |
EP0390807B1 (en) | 1996-11-20 |
ATE145512T1 (en) | 1996-12-15 |
WO1989003162A1 (en) | 1989-04-06 |
JPH03500470A (en) | 1991-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU587237B2 (en) | Electrical devices comprising cross-linked conductive polymers | |
GB2074376B (en) | Conductive polymer ptc circuit protection devices | |
AU6389586A (en) | Electrical device containing conductive polymer | |
DK473086A (en) | ARTICLES INCLUDING LEADING POLYMERS WITH POSITIVE TEMPERATURE COEFFICIENT | |
CA2054487A1 (en) | Ptc element | |
DE3363651D1 (en) | Ptc circuit protection device | |
SE7909910L (en) | CIRCUIT PROTECTION | |
TW263589B (en) | Electrical devices containing conductive polymers | |
ES8102910A1 (en) | Electrical devices comprising PTC conductive polymer elements. | |
EP0918339A3 (en) | Electrical device containing positive temperature coefficient resistor composition and method of manufacturing the device | |
EP0340361A3 (en) | Electrical device comprising a ptc-resistive polymer element | |
HK1006773A1 (en) | Electrical device comprising conductive polymers | |
GB2330291A (en) | Electric heaters | |
GB2135508B (en) | Indirectly-heated ptc devices | |
ES2032991T3 (en) | ISOLATED ELECTRIC HEATER ELEMENT WITH SAFETY DEVICE TO DETECT THE FAILURE OF THE ELECTRICAL INSULATION. | |
JPS643979A (en) | Heating assembly and connector for the same | |
EP0209224B1 (en) | Sheet heaters | |
DE3855106D1 (en) | LAMINAR ELECTRIC HEATING DEVICE | |
SE9003448L (en) | PTC element for overcurrent protection - has surface of body of polymer composition that makes free contact with each other or with associated electrode | |
SE9003814L (en) | PTC element | |
TH22250B (en) | Polymer resistance heating unit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PE | Patent expired |
Effective date: 20080929 |