SI25756B - Electro thermal fuse - Google Patents

Electro thermal fuse

Info

Publication number
SI25756B
SI25756B SI201800261A SI201800261A SI25756B SI 25756 B SI25756 B SI 25756B SI 201800261 A SI201800261 A SI 201800261A SI 201800261 A SI201800261 A SI 201800261A SI 25756 B SI25756 B SI 25756B
Authority
SI
Slovenia
Prior art keywords
fuse
conductor
contacts
housing
solder
Prior art date
Application number
SI201800261A
Other languages
Slovenian (sl)
Other versions
SI25756A (en
Inventor
Brane Lebar
Darko Kos
Original Assignee
Razvojni Center Enem Novi Materiali D.O.O.
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 Razvojni Center Enem Novi Materiali D.O.O. filed Critical Razvojni Center Enem Novi Materiali D.O.O.
Priority to SI201800261A priority Critical patent/SI25756B/en
Priority to EP18836667.8A priority patent/EP3888114B1/en
Priority to PCT/SI2018/000026 priority patent/WO2020112031A1/en
Publication of SI25756A publication Critical patent/SI25756A/en
Publication of SI25756B publication Critical patent/SI25756B/en

Links

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
    • H01H85/04—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
    • 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
    • H01H85/36—Means for applying mechanical tension to fusible member
    • 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
    • H01H85/153—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
    • H01H85/165—Casings
    • H01H85/17—Casings characterised by the casing material
    • 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
    • H01H85/18—Casing fillings, e.g. powder
    • 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
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/203—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals

Landscapes

  • Fuses (AREA)

Abstract

Namen izuma je zasnovati električno termično varovalko, pri kateri bo ne glede na njen položaj ob prekoračitvi tudi razmeroma visoke nazivne vrednosti električne napetosti in/ali toka vsakokraten električni tokokrog skoznjo v kar najkrajšem času prekinjen, obenem pa bo zagotovljeno, da oblok, četudi bi do njega neposredno po prekinitvi tokokroga prišlo, ne bo imel nikakršnega omembe vrednega vpliva niti na varovalko samo niti na okolico v neposredni bližini varovalke. Po izumu je predvideno, da cevastoohišje (1) varovalke sestoji iz keramike, vsak izmed kontaktov (110, 120) na njem pa je opremljen z vsaj približno osrednje razporejeno skoznjo luknjo (111, 121), tako da je električni vodnik (2) vstavljen skozi luknji (111, 121) v omenjenih kontaktih (110, 120) in s pomočjo vsakokrat na zunanji strani varovalke razporejene spajke (3, 3') nerazstavljivo, vendar električno prevodno povezan z vsakim izmed omenjenih kontaktov (110, 120). Razen tega je omenjeni vodnik (2) v vzdolžni smeri varovalke na enemkoncu le-te podaljšan in zaključen s primerno razširitvijo (20) na tak način, da je okoli vodnika (2) v območju med omenjeno razširitvijo (20) in pripadajočim kontaktom (120) s spajko (3') vgrajena vzmet (4). Se nadalje je preostanek svetline (100) ohišja (1) varovalke, namreč območje med omenjenim vodnikom (2) in ohišjem (1) ter med omenjenima kontaktoma (110, 120), do vnaprej določene mere zapolnjeno s polnilom (5) iz kremenčevega peska.The purpose of the invention is to design an electric thermal fuse, in which, regardless of its position, if the relatively high nominal value of electric voltage and/or current is exceeded, the electric circuit through it will be interrupted in the shortest possible time, and at the same time it will be ensured that the arc, even if up to to him directly after breaking the circuit, it will not have any noteworthy effect neither on the fuse itself nor on the surroundings in the immediate vicinity of the fuse. According to the invention, it is provided that the tubular housing (1) of the fuse consists of ceramics, and each of the contacts (110, 120) on it is equipped with at least an approximately centrally arranged through-hole (111, 121), so that the electrical conductor (2) is inserted through the holes (111, 121) in the mentioned contacts (110, 120) and with the help of solder (3, 3') arranged in each case on the outside of the fuse, indissolubly but electrically conductively connected to each of the mentioned contacts (110, 120). Apart from that, said conductor (2) is extended in the longitudinal direction of the fuse at one end of it and terminated with a suitable expansion (20) in such a way that it is around the conductor (2) in the area between said expansion (20) and the associated contact (120) ) with solder (3') built-in spring (4). Furthermore, the rest of the clearance (100) of the fuse housing (1), namely the area between said conductor (2) and housing (1) and between said contacts (110, 120), is filled to a predetermined extent with filler (5) made of quartz sand .

SI201800261A 2018-11-29 2018-11-29 Electro thermal fuse SI25756B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201800261A SI25756B (en) 2018-11-29 2018-11-29 Electro thermal fuse
EP18836667.8A EP3888114B1 (en) 2018-11-29 2018-12-05 Electro thermal fuse
PCT/SI2018/000026 WO2020112031A1 (en) 2018-11-29 2018-12-05 Electro thermal fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI201800261A SI25756B (en) 2018-11-29 2018-11-29 Electro thermal fuse

Publications (2)

Publication Number Publication Date
SI25756A SI25756A (en) 2020-06-30
SI25756B true SI25756B (en) 2023-06-30

Family

ID=65041832

Family Applications (1)

Application Number Title Priority Date Filing Date
SI201800261A SI25756B (en) 2018-11-29 2018-11-29 Electro thermal fuse

Country Status (3)

Country Link
EP (1) EP3888114B1 (en)
SI (1) SI25756B (en)
WO (1) WO2020112031A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296627A (en) * 1937-10-30 1942-09-22 Gen Electric Time lag fuse
GB1033814A (en) * 1963-06-27 1966-06-22 English Electric Co Ltd Improvements in or relating to electrical fuse-links
JP2016162683A (en) * 2015-03-04 2016-09-05 株式会社オリエント High voltage electric circuit protection fuse

Also Published As

Publication number Publication date
SI25756A (en) 2020-06-30
EP3888114B1 (en) 2022-12-14
EP3888114A1 (en) 2021-10-06
WO2020112031A1 (en) 2020-06-04

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Legal Events

Date Code Title Description
OO00 Grant of patent

Effective date: 20200630

OU02 Decision according to article 73(2) ipa 1992, publication of decision on partial fulfilment of the invention and change of patent claims

Effective date: 20230510