CA1060068A - Protector for electric circuits - Google Patents
Protector for electric circuitsInfo
- Publication number
- CA1060068A CA1060068A CA227,869A CA227869A CA1060068A CA 1060068 A CA1060068 A CA 1060068A CA 227869 A CA227869 A CA 227869A CA 1060068 A CA1060068 A CA 1060068A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- passage
- weak spot
- fusible element
- heat
- 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
Links
- 230000001012 protector Effects 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 75
- 238000002844 melting Methods 0.000 claims abstract description 42
- 230000008018 melting Effects 0.000 claims abstract description 42
- 239000002826 coolant Substances 0.000 claims description 27
- 230000002035 prolonged effect Effects 0.000 claims description 21
- 229910010293 ceramic material Inorganic materials 0.000 claims description 17
- 229910052709 silver Inorganic materials 0.000 claims description 17
- 239000004332 silver Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims 5
- 239000000945 filler Substances 0.000 abstract description 16
- 238000010791 quenching Methods 0.000 abstract description 16
- 229910000679 solder Inorganic materials 0.000 description 29
- 239000003570 air Substances 0.000 description 27
- 239000011521 glass Substances 0.000 description 27
- 229920000877 Melamine resin Polymers 0.000 description 26
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 26
- 229940024548 aluminum oxide Drugs 0.000 description 21
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 21
- 239000007787 solid Substances 0.000 description 18
- 230000009977 dual effect Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 244000291564 Allium cepa Species 0.000 description 1
- 235000010167 Allium cepa var aggregatum Nutrition 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 241000027294 Fusi Species 0.000 description 1
- 241000746181 Therates Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/47—Means for cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
- H01H85/045—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type
- H01H85/0456—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type with knife-blade end contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
- H01H85/10—Fusible members characterised by the shape or form of the fusible member with constriction for localised fusing
Landscapes
- Fuses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/484,129 US3938067A (en) | 1974-06-28 | 1974-06-28 | Protector for electric circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1060068A true CA1060068A (en) | 1979-08-07 |
Family
ID=23922869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA227,869A Expired CA1060068A (en) | 1974-06-28 | 1975-05-27 | Protector for electric circuits |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3938067A (OSRAM) |
| JP (1) | JPS5440309B2 (OSRAM) |
| CA (1) | CA1060068A (OSRAM) |
| DE (1) | DE2528580A1 (OSRAM) |
| FR (1) | FR2276680A1 (OSRAM) |
| GB (1) | GB1503713A (OSRAM) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101860A (en) * | 1976-05-20 | 1978-07-18 | Mcgraw-Edison Company | Protector for electric circuits |
| DE3051177C2 (OSRAM) * | 1979-09-11 | 1991-02-21 | Rohm Co. Ltd., Kyoto, Jp | |
| GB8717579D0 (en) * | 1987-07-24 | 1987-09-03 | Gen Electric Co Plc | Protective electric fuses |
| GB9210674D0 (en) * | 1992-05-19 | 1992-07-01 | Gersan Ets | Method and apparatus for examining an object |
| US5254967A (en) * | 1992-10-02 | 1993-10-19 | Nor-Am Electrical Limited | Dual element fuse |
| US5355110A (en) * | 1992-10-02 | 1994-10-11 | Nor-Am Electrical Limited | Dual element fuse |
| JP2003032871A (ja) * | 2001-07-17 | 2003-01-31 | Sumitomo Wiring Syst Ltd | ケーブルリール |
| US7477129B2 (en) * | 2004-12-06 | 2009-01-13 | Cooper Technologies Company | Current limiting fuse |
| US11594391B2 (en) * | 2019-12-16 | 2023-02-28 | Littelfuse International Holding, Llc. | Active/passive fuse module |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734111A (en) * | 1956-02-07 | kozacka | ||
| US2181825A (en) * | 1936-03-26 | 1939-11-28 | Chase Shawmut Co | Electric fuse |
| US2665348A (en) * | 1950-05-16 | 1954-01-05 | Chase Shawmut Co | Current-limiting fuse |
| CH303426A (de) * | 1951-01-30 | 1954-11-30 | Chase Shawmut Co | Strombegrenzende Sicherung. |
| US2713098A (en) * | 1951-07-31 | 1955-07-12 | Chase Shawmut Co | Current-limiting fusible protective devices |
| US2861150A (en) * | 1954-12-22 | 1958-11-18 | Chase Shawmut Co | Fuse structures |
| US2863967A (en) * | 1957-04-26 | 1958-12-09 | Chase Shawmut Co | Current-limiting power fuses of reduced size |
| US2939934A (en) * | 1958-08-18 | 1960-06-07 | Chase Shawmut Co | Current-limiting low-voltage fuses |
| US2960589A (en) * | 1959-01-30 | 1960-11-15 | Chase Shawmut Co | Electric fuses |
| FR1295816A (fr) * | 1961-07-22 | 1962-06-08 | Belling & Lee Ltd | Perfectionnements aux coupe-circuits fusibles |
| US3538479A (en) * | 1968-06-11 | 1970-11-03 | Mc Graw Edison Co | Protector for electric circuits |
| US3513424A (en) * | 1969-03-24 | 1970-05-19 | Chase Shawmut Co | Electric cartridge fuse having high operating temperature when carrying load current |
| US3714613A (en) * | 1971-11-01 | 1973-01-30 | Appleton Electric Co | Canted fuse element |
| US3810063A (en) * | 1972-02-25 | 1974-05-07 | Westinghouse Electric Corp | High voltage current limiting fuse including heat removing means |
-
1974
- 1974-06-28 US US05/484,129 patent/US3938067A/en not_active Expired - Lifetime
-
1975
- 1975-05-27 CA CA227,869A patent/CA1060068A/en not_active Expired
- 1975-05-30 GB GB23662/75A patent/GB1503713A/en not_active Expired
- 1975-06-26 DE DE19752528580 patent/DE2528580A1/de not_active Withdrawn
- 1975-06-27 JP JP7947575A patent/JPS5440309B2/ja not_active Expired
- 1975-06-27 FR FR7520387A patent/FR2276680A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2276680A1 (fr) | 1976-01-23 |
| US3938067A (en) | 1976-02-10 |
| DE2528580A1 (de) | 1976-01-15 |
| FR2276680B1 (OSRAM) | 1980-11-21 |
| JPS5118844A (OSRAM) | 1976-02-14 |
| GB1503713A (en) | 1978-03-15 |
| JPS5440309B2 (OSRAM) | 1979-12-03 |
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