GB2630721A - Aluminum alloy miniature cartridge fuses - Google Patents
Aluminum alloy miniature cartridge fuses Download PDFInfo
- Publication number
- GB2630721A GB2630721A GB2412625.2A GB202412625A GB2630721A GB 2630721 A GB2630721 A GB 2630721A GB 202412625 A GB202412625 A GB 202412625A GB 2630721 A GB2630721 A GB 2630721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuse
- ferrules
- end wall
- aluminum alloy
- housing
- 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.)
- Pending
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract 16
- 229910052751 metal Inorganic materials 0.000 claims abstract 26
- 239000002184 metal Substances 0.000 claims abstract 26
- 238000007747 plating Methods 0.000 claims abstract 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 6
- 229910052759 nickel Inorganic materials 0.000 claims 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 2
- 229910052802 copper Inorganic materials 0.000 claims 2
- 239000010949 copper Substances 0.000 claims 2
- 238000003466 welding Methods 0.000 claims 2
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
-
- 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
- H01H85/0411—Miniature fuses
- H01H85/0415—Miniature fuses cartridge type
- H01H85/0418—Miniature fuses cartridge type with ferrule type 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
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
- H01H85/157—Ferrule-end contacts
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
Abstract
A high-capacity miniature cartridge fuse is provided. The fuse includes a housing, a fusible element, and first and second ferrules fabricated from aluminum alloy. The aluminum alloy ferrules is fabricated to withstand high pressure generated inside the housing as a result of arcing and to stay in place after repeated temperature and pressure changes caused by at least one of i) current or ii) arcing during short circuit events. The aluminum alloy plated with a first metal plating fabricated from a first metal different from the aluminum alloy and a second metal plating fabricated from a second metal different from the first metal, the second metal plating overlaying the first metal plating. Each of the first and second ferrules includes a side wall and an end wall, wherein the end wall includes a boss extending toward an interior of the housing.
Claims (20)
1. A high-capacity miniature cartridge fuse comprising: a housing having opposing first and second ends; a fusible element positioned inside the housing; and first and second ferrules fabricated from aluminum alloy, the aluminum alloy ferrules fabricated to withstand high pressure generated inside the housing as a result of arcing and to stay in place after repeated temperature and pressure changes caused by at least one of i) current or ii) arcing during short circuit events, wherein the first and second ferrules are electrically connected to the fusible element, the aluminum alloy plated with a first metal plating fabricated from a first metal different from the aluminum alloy and a second metal plating fabricated from a second metal different from the first metal, the second metal plating overlaying the first metal plating, each of the first and second ferrules comprising: a side wall; and an end wall extending from the side wall and closing the first or second end of the housing, wherein the end wall includes a boss extending toward an interior of the housing, wherein the side wall and the end wall define an interior receptacle that is sized to receive the first or second end of the housing.
2. The fuse of claim 1, wherein the first metal comprises copper or copper alloy.
3. The fuse of claim 1, wherein the second metal comprises nickel.
4. The fuse of claim 1, wherein the second metal comprises tin.
5. The fuse of claim 1, wherein the boss defines an interior surface of the end wall, the fuse further comprises an eyelet extending adjacent the interior surface, and the fusible element comprises a fusible wire extending through the eyelet and held between the eyelet and the end wall.
6. The fuse of claim 5, further comprising a fusible paste positioned between the eyelet and the end wall and welding the fusible wire to the eyelet and the end wall.
7. The fuse of claim 5, wherein a diameter of the fusible wire is 60 pm or less.
8. The fuse of claim 1, wherein electrical resistance of the fuse is adjusted based on a specification of opening time of the fuse.
9. The fuse of the claim 8, wherein the fusible element comprises a fusible wire, wherein a diameter of the fusible wire is adjusted based on the specification.
10. The fuse of claim 8, wherein a thickness of at least one of the ferrules is adjusted based on the specification.
11. A high-capacity miniature cartridge fuse comprising: a cylindrical housing having opposing first and second ends; a fusible element positioned inside the cylindrical housing and including opposing first and second ends; and first and second deep-drawn ferrules fabricated from aluminum alloy, the aluminum alloy ferrules fabricated to withstand high pressure generated inside the cylindrical housing as a result of arcing and to stay in place after repeated temperature and pressure changes caused by at least one of i) current or ii) arcing during short circuit events, wherein the first and second ferrules are respectively attached to the first and second ends of the cylindrical housing and electrically connected to the respective first and second ends of the fusible element, the aluminum alloy being plated with nickel, each of the first and second ferrules comprising: a side wall surrounding the first or second end of the cylindrical housing; and an end wall extending from the side wall and closing the first or second end of the cylindrical housing, wherein the end wall includes a boss extending toward an interior of the cylindrical housing and defining an interior surface of the end wall, wherein the side wall and the end wall define an interior receptacle that is sized to receive the first or second end of the cylindrical housing, and wherein electrical resistance of the fuse is adjusted based on a specification of opening time of the fuse.
12. The fuse of claim 11, wherein the aluminum alloy has a thermal conductivity of approximately 125 W/m-K or lower and an electrical resistivity of approximately 5.32* 10'6 Q-cm or higher.
13. The fuse of claim 11, wherein the fusible element comprises a fusible wire, and a diameter of the fusible wire is adjusted based on the specification.
14. The fuse of claim 11, wherein a thickness of at least one of the ferrules is adjusted based on the specification.
15. A high-capacity miniature cartridge fuse comprising: a housing having opposing first and second ends; a fusible element positioned inside the housing; first and second ferrules, wherein the first and second ferrules are electrically connected to the fusible element, each of the first and second ferrules comprising: a side wall; and an end wall extending from the side wall and closing the first or second end of the housing, wherein the end wall includes a boss extending toward an interior of the housing and defining an interior surface of the end wall; an eyelet extending adjacent the interior surface of the end wall; and a fusible paste, wherein the fusible element extends through the eyelet and held between the eyelet and the end wall, the fusible paste positioned between the eyelet and the end wall and welding the fusible element to the eyelet and one of the ferrules .
16. The fuse of claim 15, wherein the ferrules are fabricated from aluminum alloy.
17. The fuse of claim 16, wherein the aluminum alloy is plated with a first metal plating fabricated from a first metal different from the aluminum alloy and a second metal plating fabricated from a second metal different from the first metal, the second metal plating overlaying the first metal plating.
18. The fuse of claim 17, wherein the first metal comprises copper or copper alloy.
19. The fuse of claim 17, wherein the second metal comprises at least one of nickel or tin .
20. The fuse of claim 15, wherein the fusible element comprises a fusible wire, and a diameter of the fusible wire is 60 pm or less.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/679,961 US12106921B2 (en) | 2019-05-06 | 2022-02-24 | Aluminum alloy miniature cartridge fuses |
| PCT/EP2023/025085 WO2023160877A1 (en) | 2022-02-24 | 2023-02-24 | Aluminum alloy miniature cartridge fuses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202412625D0 GB202412625D0 (en) | 2024-10-09 |
| GB2630721A true GB2630721A (en) | 2024-12-04 |
Family
ID=85477883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2412625.2A Pending GB2630721A (en) | 2022-02-24 | 2023-02-24 | Aluminum alloy miniature cartridge fuses |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN119096325A (en) |
| GB (1) | GB2630721A (en) |
| WO (1) | WO2023160877A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772075A (en) * | 1969-07-01 | 1973-11-13 | Ppg Industries Inc | Applying electroconductive heating circuits to glass |
| DE29511129U1 (en) * | 1994-06-29 | 1996-10-31 | Wickmann-Werke GmbH, 58453 Witten | Fuse |
| US5994994A (en) * | 1996-03-05 | 1999-11-30 | Kabushiki Kaisha Sinzetto | Fuse |
| US20200357593A1 (en) * | 2019-05-06 | 2020-11-12 | Eaton Intelligent Power Limited | Aluminum alloy miniature cartridge fuses |
-
2023
- 2023-02-24 CN CN202380034968.3A patent/CN119096325A/en active Pending
- 2023-02-24 WO PCT/EP2023/025085 patent/WO2023160877A1/en not_active Ceased
- 2023-02-24 GB GB2412625.2A patent/GB2630721A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3772075A (en) * | 1969-07-01 | 1973-11-13 | Ppg Industries Inc | Applying electroconductive heating circuits to glass |
| DE29511129U1 (en) * | 1994-06-29 | 1996-10-31 | Wickmann-Werke GmbH, 58453 Witten | Fuse |
| US5994994A (en) * | 1996-03-05 | 1999-11-30 | Kabushiki Kaisha Sinzetto | Fuse |
| US20200357593A1 (en) * | 2019-05-06 | 2020-11-12 | Eaton Intelligent Power Limited | Aluminum alloy miniature cartridge fuses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119096325A (en) | 2024-12-06 |
| GB202412625D0 (en) | 2024-10-09 |
| WO2023160877A1 (en) | 2023-08-31 |
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