EP3903336A1 - Verfahren zur herstellung einer schmelzsicherung - Google Patents
Verfahren zur herstellung einer schmelzsicherungInfo
- Publication number
- EP3903336A1 EP3903336A1 EP19828795.5A EP19828795A EP3903336A1 EP 3903336 A1 EP3903336 A1 EP 3903336A1 EP 19828795 A EP19828795 A EP 19828795A EP 3903336 A1 EP3903336 A1 EP 3903336A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- fabric
- fuse
- base plate
- fiber
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 164
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000002844 melting Methods 0.000 claims abstract description 30
- 230000008018 melting Effects 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims description 102
- 238000000034 method Methods 0.000 claims description 42
- 125000006850 spacer group Chemical group 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 229920002480 polybenzimidazole Polymers 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004693 Polybenzimidazole Substances 0.000 description 3
- 239000004760 aramid Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229920000271 Kevlar® Polymers 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004761 kevlar Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 2
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- ZPSJGADGUYYRKE-UHFFFAOYSA-N 2H-pyran-2-one Chemical compound O=C1C=CC=CO1 ZPSJGADGUYYRKE-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920000508 Vectran Polymers 0.000 description 1
- 239000004979 Vectran Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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
- H01H69/022—Manufacture of fuses of printed circuit 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
- H01H85/05—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
- H01H85/04—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
-
- 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
- H01H85/06—Fusible members characterised by the fusible 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
- H01H85/055—Fusible members
- H01H85/12—Two or more separate fusible members in parallel
-
- 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
- H01H85/175—Casings characterised by the casing shape or form
-
- 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
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0275—Structural association with a printed circuit board
-
- 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
- H01H2085/0414—Surface mounted 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
- H01H85/38—Means for extinguishing or suppressing arc
Definitions
- the present invention relates to a method for
- SMD fuses are usually automatically applied to FR4 circuit boards by pick & place machines and then by means of reflow soldering processes or in
- SMD fuses can be designed as a fuse in a ceramic housing.
- the FR4 circuit board material When manufactured using PCB-related electroplating, the FR4 circuit board material consists of glass fiber reinforced epoxy resin. Copper foils of different thicknesses (6, 9, 12,
- Another manufacturing method is that
- Fusible wires are laminated between circuit boards. This has the disadvantage that each wire must be fixed individually on the circuit boards. The regularity of the distances between parallel metal wires and their straightness can only be guaranteed with great effort.
- wire bonding Another manufacturing process is wire bonding, which comes from semiconductor manufacturing and has been converted into PCB technology.
- the wire bonding comes from the chip connection contacting and allows the machine
- a wire is unwound from a roll and with the
- Connection methods such as thermosonic or ultrasound methods, at least locally with one another
- An object of the present invention is a method for producing a fuse
- a fuse which extends from a first end along a longitudinal axis to a second end, comprises the steps:
- connection layer between the base plate and the fabric and between the fabric and the cover layer, at least in the respective
- the fabric comprises at least one first fiber which is electrically conductive and which extends along the longitudinal axis from the first end of the fuse to the second end of the fuse and comprises second fibers which are non-conductive and which extend at least transversely to the longitudinal axis, wherein the
- At least one first fiber has a higher melting temperature than the second fibers
- a wire-in-air fuse can be produced using such a method.
- the positions of the individual fibers of the fabric and the position of the fabric fibers in relation to one another can be determined very precisely by means of electrically conductive fabrics, which means that the at least one fusible wire has to be positioned in a complex manner
- Insulation strength and the i 2 t values can be easily set. Such fuses also entail low material and manufacturing costs. The costs for partially electrically conductive fabric are low and the
- the first fibers are made of copper and the second fibers are made of polyester.
- Copper has a melting temperature of approximately 1000 ° C and polymers usually have
- the fuse housing is made by melting the second fibers by:
- the stacked elements are then heated to a temperature which is below the melting temperature of the first fibers and above that
- Polyester fibers become the stacked elements of the
- the fuse is heated from room temperature to a temperature of 250 ° C within 3 minutes. This temperature is held for 90 seconds. The fuse is then cooled to room temperature.
- Heating can also take place to a temperature of over 250 ° C., for example 300 ° C., 350 ° C., 400 ° C. or 450 ° C.
- the holding time can be more than 90 seconds
- the heating temperature should be selected below the decomposition temperature of the material of the second fibers.
- the heating temperature should also be below the melting temperature or
- Connection layers and the top layer Due to the entropy elasticity of the second fibers, these are drawn towards the edge regions in the region of the at least one first fiber after melting. The longer the
- the connecting layers can be formed as separate layers or they can
- the base plate and / or the fabric and / or the cover layer can comprise a connecting material.
- an adhesive varnish or an adhesive film can be used to connect two adjacent layers of the fuse.
- connection layers For example, part of the connection layer can penetrate into the tissue or can swell from the edge regions. This method cannot only be used in connection with laminated fuses. It can also be used for fuses with prefabricated housing parts. For example, a fabric with first and second fibers between two
- a first housing part corresponds to a base plate with a recess formed therein and a second housing part
- Housing part of a cover layer with a recess formed therein and the adhesive corresponds to the connection layer.
- the base plate comprises one
- Circuit board For example an FR4 or FR5 circuit board.
- Printed circuit boards can comprise a composite material, such as glass fiber reinforced
- Epoxy resin epoxy resin.
- ceramic materials such as glass plates or Ceramic plates or combinations of plastic and ceramic can be used.
- epoxy double-sided adhesive polyimide films can be used as
- Connection layer can be used.
- Fuse protection provided electrical contact elements which are electrically conductively connected to the at least one first fiber.
- Such electrical contacts are also called terminals or external end contacts and are usually refined with an ENIG process, i.e. they include a gold top layer.
- the contact elements over the entire area of the two ends of the fuse.
- the contact elements can only be in the area of the fabric of the two end faces of the
- the contact elements may be provided. It is also possible that the contact elements partially enclose the fuse laterally and / or above and below. In such an embodiment, the contact elements are designed in the form of clips or sleeves.
- Base plate formed and at least one second cavity is formed in the cover layer, between the edge regions of the cover layer.
- several cavities can be formed in the base plate and / or the cover layer.
- the individual cavities can be separated from one another by webs.
- the cavities can have different dimensions, ie they can be of different widths or depths. It is also conceivable that the individual cavities do not have constant dimensions, that is to say that their dimensions change along the longitudinal axis and / or transversely thereto.
- the marginal areas are
- the width of the edge areas and the webs is between 0.3 millimeters and 10 millimeters.
- the width of the edge areas can be larger, the same size or smaller than that of the webs.
- At least one frame-shaped spacer is arranged between the base plate and the fabric and / or between the fabric and the cover layer, with at least one third cavity between the
- the spacer can be connected to the adjacent layers by means of connecting layers. It can come back here
- Adhesive varnish or an adhesive film can be used. Of the
- Spacers and / or the adjacent layers can also be impregnated with an adhesive varnish.
- an extinguishing layer is arranged on one or both sides of the fabric by means of a connecting layer in the corresponding cavity.
- the corresponding extinguishing layers can be arranged in an area close to the tissue or they can be arranged in an area distant therefrom.
- the tissue can be arranged in an area close to the tissue or they can be arranged in an area distant therefrom.
- Erase layer erasing silicone or inorganic Materials that have a melting point that is above that of the second fibers, for example vermiculite, PDMS or the like.
- the extinguishing layer can be designed as a fabric or as a film.
- the fabric can comprise a quenching material. For example, if glass fibers are woven into the fabric. It is also possible to soak the fabric with silicone resin, which removes the fibers of the fabric from a matrix
- Silicone resin are surrounded.
- the base plate is the
- Cover layer and each of the extinguishing layers formed as closed surfaces. I.e. they extend in the
- connection layers comprise a closed peripheral frame, i.e. they comprise at least one through opening spaced from the edge regions. If the erasure layers are directly connected to the
- connection layers can be frame-shaped, strip-shaped or as closed surfaces.
- the connecting layers comprise at least one web which extends transversely to the longitudinal axis from one side of the frame to an opposite side of the frame and the at least one
- Spacer comprises at least one web, which extends transversely to the longitudinal axis from one side of the frame to an opposite side of the frame. It Two or more webs can also be provided, which extend from one side of the frame to one
- the base plate is the
- At least one cover layer is essentially rectangular, i.e. they comprise an essentially rectangular plan and include two each other
- the ends are aligned along the longitudinal axis and the sides are aligned across the longitudinal axis.
- the corners between the ends and the sides can be rounded.
- the through openings of the connecting layers and the spacers can also have rounded corners.
- the through openings can also be designed as slots with rounded ends.
- the fabric is flat.
- the fabric is pleated and includes a variety of permanent folds, i.e. it is folded or corrugated and includes sections that come from the
- Tissue plane that is, protrude from the connection plane between the two ends of the tissue.
- two or more fabrics are arranged in the fuse, with an intermediate layer being arranged between two adjacent fabrics, which is connected to the fabrics by connecting layers or which is connected by connecting layers and
- Spacer is connected to the tissues.
- At least one is fourth
- the intermediate layers can comprise the same material as the base plate or the cover layer.
- the fabric comprises first fibers that extend transversely to the longitudinal axis.
- the fabric includes electrically conductive fibers that extend along the longitudinal axis and electrically conductive fibers that extend across the longitudinal axis.
- the fabric can be woven so that the longitudinal fibers contact the transverse fibers and a current-transmitting contact is formed.
- the fabric comprises second fibers that extend along the longitudinal axis.
- the fabric comprises electrically non-conductive fibers which extend transversely to the longitudinal axis and electrically non-conductive fibers which extend along the longitudinal axis.
- At least partially several first fibers are combined, i.e. several first fibers form fiber bundles which are interwoven.
- the second fibers are combined. It is therefore possible to weave individual conductive or non-conductive fibers together to form a fabric, or individual fibers with fiber bundles can be woven into a fabric or fiber bundles can be woven together.
- a fiber bundle can, for example, have several fused together
- Such fibers which are arranged parallel to each other. Such a fiber bundle behaves similarly to a single fiber with a larger diameter.
- the fabric comprises only second fibers, at least in the area of its two sides. I.e. the fabric is electrical in the area of the two sides
- the first fibers and / or the second fibers have different diameters.
- the diameters of the conductive fibers are smaller than those of the non-conductive fibers.
- the conductive fibers can have a larger diameter than the non-conductive ones. It is
- non-conductive fibers with a first diameter and non-conductive fibers with a second diameter different from the first diameter in the fabric.
- the conductive fibers have a diameter of 5 to 2,000 microns.
- Cross sections of the first and / or second fibers can be circular, oval or polygonal.
- the first fibers comprise a completely conductive cross section.
- Such fibers can have only one material or they can have a conductive core made of a first material and a conductive coating have a second material.
- the first fibers comprise a conductive coating or core.
- At least one electrically conductive first fiber is wound spirally around a non-conductive second fiber or around a bundle of non-conductive fibers.
- the winding can be even, i.e. the turns are evenly distributed over the entire length of the fabric.
- the conductive fibers can be locally wrapped closer around the non-conductive fibers, i.e. with reduced turns. They heated up in the area of the narrower winding
- the second fibers of a fabric can comprise different materials.
- some fibers may include a material that is used in the
- Warming melts and some fibers may include a material that does not melt when heated.
- the second fibers directed in the longitudinal direction cannot melt and those transverse to the
- Longitudinal second fibers can melt. Some transverse fibers can also be non-melting, as a result of which the at least one first fiber is positioned centrally within the cavities
- the at least one first fiber can be held in a plane with the second fibers, which is defined by the central plane of the fabric.
- the electrically non-conductive fibers comprise a material selected from the
- silicone e.g. PDMS
- polyimide polyimide
- polyester polyamide
- polyamide polyamide
- aramid Kevlar
- Teflon polytetrafluoroethylene
- PET polyethylene terephthalate
- PBI polyacrylonitrile
- PAN polyacrylonitrile
- pyrone oxidized polyacrolynitrile
- PC polycarbonate
- PPS polyphenylene sulfide
- aromatic polyesters e.g. Vectran
- PEN polyethylene naphthalate
- PEEK polyether ether ketone
- PBT polybutylene terephthalate
- PVD polyvinylidene difluoride
- PP polypropylene
- the fabric comprises non-conductive third fibers which are interwoven with the at least one first fiber and the second fibers.
- the third fibers have a higher melting point than the second fibers.
- the third fibers can basically comprise the same material as the second fibers.
- the third fibers preferably comprise a material selected from the group comprising glass fibers, polyimide (Kapton), aramid (Kevlar), polybenzimidazole (PBI) and inorganic fibers or more precisely ceramic fibers (e.g. alumino-silicate or
- the extinguishing layer and / or the base plate and / or the cover layer and / or the conductive and non-conductive fibers comprises a mineral-coated surface, for example with a
- non-conductive fibers with surface coatings be provided, the surface coatings by PVD / CVD processes or by plasma polymerization
- the surface coating protects the underlying fiber, for example against mechanical and / or electrical and / or chemical influences.
- the conductive fibers can be coated with an extinguishing material.
- PU polyurethane
- PET polyethylene terephthalate
- PA polyamide
- PI polyimide
- composite materials such as copolymers or derivatives of the above materials.
- the electrically conductive fibers comprise a material selected from the group comprising gold, copper, silver, tin and their alloys.
- Fibers can be made entirely of this material or can include a conductive core or coating.
- the coating can be partial or complete.
- aramid fibers can be coated with gold or nylon fibers with copper.
- copper wires can also be partially or completely coated with tin or silver.
- the individual layers have the dimensions of several fuses.
- several base plates assembled in one direction can form a long band or can form a larger plate if they are in two mutually perpendicular directions
- the individual fuses can only be separated in the area of the conductive fibers in a first step, for example by means of a bore or a milling, and can be completely separated from one another in a second step.
- the individual fuses can be separated from one another in one step, for example by cutting, milling or sawing.
- Fig. 1 is a sectional view of a first
- Figure 2 is a sectional view of the fuse of Figure 1 along the section line AA.
- Fig. 3 is a sectional view of the finished
- Fig. 4 is a sectional view of a second
- Figure 5 is a sectional view of the fuse of Figure 4 along the section line A-A;
- Fig. 6 is a sectional view of the finished
- Fig. 7 is a sectional view of a third
- Fig. 8 is a sectional view of a fourth
- Fig. 9 is a sectional view of a fifth
- Fig. 10 is a sectional view of a sixth
- Fig. 12 is a sectional view of an eighth
- FIG. 13 is a sectional view of a ninth embodiment of an inventive one
- Figure 1 shows a sectional view of a first
- FIG. 2 shows a sectional view of the fuse of FIG. 1 along the section line AA
- FIG. 3 shows a sectional view of the finished fuse of FIG. 1.
- the fuse extends along a longitudinal axis L from a first end 11 to a second end 12 opposite it.
- Base plate 2 was placed on an essentially flat base, not shown here.
- a connection layer 3, an at least partially conductive fabric 4, and another one were added one after the other
- the base plate 2 is a
- Essentially rectangular circuit board and includes a first end 21, an opposite end second end 22, a first side 23 arranged transversely thereto and a second side 24 opposite this.
- the base plate 2 there is a recess spaced apart from the edge regions of the upper surface of the base plate 2
- the cover layer 5 is
- a printed circuit board with a first end 51, a second end 52, a first side 53, a second side 54 and a second recess which, when assembled, delimits a second cavity 500.
- Connection layers 3 are designed in a frame shape and comprise a first end 31, a second end 32, a first side 33, a second side 34, as shown in FIG. 12. In contrast to the connecting element of FIG. 12, the connecting element of the embodiment shown in FIGS. 1 to 3 does not include any
- the at least partially conductive fabric 4 comprises a closed surface with a first end 41, a second end 42 opposite this, a first side 43 and a second side 44 opposite this.
- the fabric 4 comprises at least one electrically conductive first fiber 400, which is at least one extends in the longitudinal direction from the first end 11 to the second end 12 of the fuse 1 and it comprises non-conductive second fibers 401 which extend at least transversely to the longitudinal axis L.
- the first fibers 400 have a higher melting temperature than that second fibers 401.
- the fabric 4 does not extend to the lateral outer contours of the fuse 1, whereby the fabric 4 laterally outwards through the material of the
- connection layer 3 is covered.
- the tissue 4 can extend laterally to the periphery of the
- Contact elements 6 are arranged, which extend over the entire respective end face and which are electrically conductively connected to the at least one first fiber 400.
- Figures 4 to 6 show a second embodiment of a fuse according to the invention, before and after heating. In contrast to the first embodiment
- a printed circuit board 2 Before heating, a connection layer 3, a spacer 7, a further connection layer 3, an at least partially conductive fabric 4, another
- Connection layer 3 a spacer 7, a further connection layer 3 and a cover layer 5
- the fabric 4 extends to the two sides 13, 14 of the fuse 1, but are the two lateral areas 43, 44 of the fabric 4
- Such a fabric 4 is
- Contact elements 6 are arranged, which extend over the region of the respective end surface, which contains the tissue 4. These contact elements 6 are also electrically conductive with the at least one first fiber 400
- FIG. 7 shows a sectional view of a third
- Edge regions of the individual layers are connected to one another, but a central region 20 of the base plate 2, a web 70 of the spacer 7, a central region 40 of the fabric 4 and a central region 50 of the cover layer 5 are connected to one another by webs 30 of the corresponding connecting layer 3.
- the connecting layer 3 extends along the longitudinal axis L from a first end 31 to a second end 32 opposite this and comprises a closed, circumferential frame with two near-end frames
- Frame parts 31, 32 and two side frame parts 33, 34 as shown, for example, in FIG.
- a web 30 extends through a central region of the connection layer 3 to a lateral second frame part 34 lying opposite it Base plate 2 only partially, ie connected to the fabric 4 in the area of the frame parts of the connecting layer 3.
- a first end 21, a second end 22, a first side, a second side and a central region 20 of the base plate 2 have a first end 41, a second end 42, a first side, a second side and a central region 40 of the fabric connected.
- the above-mentioned regions of the fabric 4 are correspondingly connected by a further connection layer 3 to a first end 51, a second end 52, a first side, a second side and a central region 50 of the cover layer 5.
- the spacers 7 comprise a frame-shaped structure with dimensions that those of
- connection layer 3 corresponds to connection layer 3.
- the frame-like structure of the connecting layers 3 and the spacer elements 7 creates third cavities 700 between the base plate 2 and the fabric 4, or between the fabric 4 and the
- Cover layer 5 in the areas of the through openings of the connecting layers 3.
- Figure 8 shows a sectional view of a fourth
- connection layers 3 arranged.
- the extinguishing layers 9 are designed as closed surfaces which extend through the cavities 200, 500 to the two ends 11, 12 and the two sides of the fuse.
- FIG. 9 shows a sectional view of a fifth
- Extinguishing layers 9 extend laterally and in the longitudinal direction to the periphery of the fuse 1.
- FIG. 10 shows a sectional view of a sixth
- Connection layers 35 are connected to the base plate 2 or to the cover layer 5.
- the extinguishing layer 9 extends over the entire surface of the recess 12 directed against the tissue 4
- Erase layer 9 from the first end 11 of the fuse 1, to the second end 12 of which over the entire surface of the base plate 2 directed against the tissue 4, or the cover layer 5.
- FIG. 12 shows a sectional view of a seventh
- Embodiment of a fuse according to the invention before heating Two tissues 4 are arranged in a common cavity 700.
- the two fabrics 4 are separated from one another by a spacer 7.
- the tissues 4 are separated from the base plate 2 or from the cover layer 5 by spacers 7 on the outward or upward and downward sides.
- the base plate 2, the spacers 7, the fabric 4 and the cover layer 5 are connected to one another by frame-shaped connecting layers 3.
- two tissues separated from each other by a spacer can also be arranged between a base plate and a cover layer, as shown for example in FIG. 10.
- FIG. 13 shows a sectional view of an eighth
- Embodiment of a fuse according to the invention before heating Two essentially flat fabrics 4 are arranged in layers between the base plate 2 and the cover layer 5.
- a printed circuit board is provided as an intermediate layer 8 between the two fabrics 4. In the intermediate layer 8 are spaced from the
- FIG. 14 shows a sectional view of a sixth
- Embodiment of a fuse according to the invention before heating In contrast to the embodiment in FIG. 13, the base plate 2, the cover layer 5 and the intermediate layer 8 have no recesses. The cavities 700 are separated by the corresponding spacers 7
- Connection layers 3 are arranged.
- 16a shows a first embodiment of a
- Fabric 4 with an electrically conductive first fibers 400, which extend along the longitudinal axis L and with non-conductive fibers 401, which extend transversely to the
- FIG. 16 b shows a second embodiment of a fabric 4, with electrically conductive first fibers 400 which extend along the longitudinal axis L and with non-conductive fibers 401 which extend transversely to the longitudinal axis L.
- FIG. 16c shows a third embodiment of a fabric 4.
- the fabric 4 comprises a plurality of first fibers 400, which extend along the longitudinal axis L and transversely thereto
- FIG. 16d shows a fourth embodiment of a fabric 4, wherein bundles of first fibers 400 are interwoven with individual second fibers 401.
- FIG. 16e shows a fifth embodiment of a woven fabric 4, individual first fibers 400 being interwoven with bundles of second fibers 401.
- FIG. 16f shows a sixth embodiment of a fabric, wherein a plurality of second fibers 401 are interwoven between individual first fibers 400, which extend along the longitudinal axis L from the first end 41 to the second end 42 of the fabric 4.
- the distance between the two conductive first fibers 400 can thus be adjusted very precisely.
- only non-conductive fibers 401 are provided, which is why the two lateral areas of the fabric 4 are non-conductive.
- FIG. 17a shows a conductive first fiber 400 which is wound in a spiral around a non-conductive second fiber 401 and FIG. 17b shows a first fiber 400 which is wound around a bundle of second fibers 401.
- Such wound first fibers 400 can be used in the fabrics described above.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
- Combinations Of Printed Boards (AREA)
- Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2018/097043 WO2020135914A1 (de) | 2018-12-27 | 2018-12-27 | Schmelzsicherung |
PCT/EP2019/087102 WO2020136261A1 (de) | 2018-12-27 | 2019-12-27 | Verfahren zur herstellung einer schmelzsicherung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3903336A1 true EP3903336A1 (de) | 2021-11-03 |
EP3903336B1 EP3903336B1 (de) | 2024-05-01 |
Family
ID=65010766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19828795.5A Active EP3903336B1 (de) | 2018-12-27 | 2019-12-27 | Verfahren zur herstellung einer schmelzsicherung |
Country Status (5)
Country | Link |
---|---|
US (1) | US11410826B2 (de) |
EP (1) | EP3903336B1 (de) |
JP (1) | JP7438221B2 (de) |
CN (1) | CN113196438A (de) |
WO (2) | WO2020135914A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114284118B (zh) * | 2021-12-28 | 2022-10-04 | 徐州汉通电子科技有限公司 | 一种用于配电系统的熔断器 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861150A (en) * | 1954-12-22 | 1958-11-18 | Chase Shawmut Co | Fuse structures |
US2833890A (en) * | 1955-07-22 | 1958-05-06 | Chase Shawmut Co | Fillerless one time fuses |
US2827532A (en) * | 1955-10-28 | 1958-03-18 | Frederick J Kozacka | Current-limiting low impedance fuses for small current intensities |
US2866038A (en) * | 1957-05-09 | 1958-12-23 | Chase Shawmut Co | Current-limiting fuses with increased interrupting capacity |
US2915609A (en) * | 1957-10-23 | 1959-12-01 | Chase Shawmut Co | Fusible protective devices |
US3020372A (en) * | 1958-11-24 | 1962-02-06 | Chase Shawmut Co | Fuse structures |
US3261950A (en) * | 1964-11-30 | 1966-07-19 | Chase Shawmut Co | Time-lag fuses having high thermal efficiency |
US3341674A (en) * | 1965-10-21 | 1967-09-12 | Chase Shawmut Co | Electric quartz-sand-filled fuse adapted to interrupt effectively protracted small overload currents |
FI41415C (fi) * | 1965-12-10 | 1969-11-10 | Ericsson Telefon Ab L M | Sulakelaite vahvavirtakondensaattoreita varten |
US3425019A (en) * | 1967-09-05 | 1969-01-28 | Chase Shawmut Co | Miniaturized cartridge fuse for small current intensities having large time-lag |
US3465275A (en) * | 1968-02-26 | 1969-09-02 | Chase Shawmut Co | Current limiting fuse for use in rotating machinery |
US4034328A (en) * | 1976-06-28 | 1977-07-05 | Erwin Salzer | Electric fuse |
US4140988A (en) * | 1977-08-04 | 1979-02-20 | Gould Inc. | Electric fuse for small current intensities |
US4179677A (en) * | 1978-05-15 | 1979-12-18 | Gould Inc. | Combination of fusible elements for electric fuses |
US4293836A (en) * | 1979-07-11 | 1981-10-06 | San-O Industrial Co., Ltd. | Electrical fuse with an improved fusible element |
US4972169A (en) | 1988-06-09 | 1990-11-20 | Cooper Industries, Inc. | Spiral wound sand fuse |
JPH0935614A (ja) | 1995-07-19 | 1997-02-07 | Hitachi Chem Co Ltd | チップ型フューズおよびその製造法 |
US7425885B2 (en) * | 2001-02-15 | 2008-09-16 | Integral Technologies, Inc. | Low cost electrical fuses manufactured from conductive loaded resin-based materials |
US7570148B2 (en) | 2002-01-10 | 2009-08-04 | Cooper Technologies Company | Low resistance polymer matrix fuse apparatus and method |
US7436284B2 (en) * | 2002-01-10 | 2008-10-14 | Cooper Technologies Company | Low resistance polymer matrix fuse apparatus and method |
US8937524B2 (en) | 2009-03-25 | 2015-01-20 | Littelfuse, Inc. | Solderless surface mount fuse |
CN207149513U (zh) | 2017-09-06 | 2018-03-27 | 电安科技(嘉兴)有限公司 | 空腔保险装置 |
-
2018
- 2018-12-27 WO PCT/EP2018/097043 patent/WO2020135914A1/de active Application Filing
-
2019
- 2019-12-27 JP JP2021537906A patent/JP7438221B2/ja active Active
- 2019-12-27 WO PCT/EP2019/087102 patent/WO2020136261A1/de unknown
- 2019-12-27 EP EP19828795.5A patent/EP3903336B1/de active Active
- 2019-12-27 US US17/418,201 patent/US11410826B2/en active Active
- 2019-12-27 CN CN201980084401.0A patent/CN113196438A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN113196438A (zh) | 2021-07-30 |
JP7438221B2 (ja) | 2024-02-26 |
US11410826B2 (en) | 2022-08-09 |
EP3903336B1 (de) | 2024-05-01 |
US20220108861A1 (en) | 2022-04-07 |
WO2020136261A1 (de) | 2020-07-02 |
WO2020135914A1 (de) | 2020-07-02 |
JP2022515634A (ja) | 2022-02-21 |
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