EP3844792A1 - Schmelzsicherung mit integrierter messfunktion sowie sicherungskörper - Google Patents
Schmelzsicherung mit integrierter messfunktion sowie sicherungskörperInfo
- Publication number
- EP3844792A1 EP3844792A1 EP19829139.5A EP19829139A EP3844792A1 EP 3844792 A1 EP3844792 A1 EP 3844792A1 EP 19829139 A EP19829139 A EP 19829139A EP 3844792 A1 EP3844792 A1 EP 3844792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuse
- receiving space
- current transformer
- measuring device
- space
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 15
- 238000011161 development Methods 0.000 description 12
- 239000006004 Quartz sand Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000009420 retrofitting Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000003440 Henbest reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000011179 visual inspection Methods 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
- H01H85/0241—Structural association of a fuse and another component or apparatus
-
- 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
- H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
-
- 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
- H01H2085/0266—Structural association with a measurement device, e.g. a shunt
-
- 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
- H01H85/0241—Structural association of a fuse and another component or apparatus
- H01H2085/0291—Structural association with a current transformer
Definitions
- the invention relates to a fuse, in which a measuring function is integrated. Furthermore, the invention relates to a fuse body for a fuse with inte grated measuring function.
- an overcurrent protection device is, for example, a fuse which interrupts the circuit by melting one or more fuse conductors when the current of the circuit protected by the fuse exceeds a certain value over a certain period of time.
- the fusible fuse consists of an insulating body which has two electrical connections which are electrically conductively connected to one another in the interior of the insulating body by one or more fusible conductors.
- the fuse element which has a reduced cross section compared to the other conductors of the circuit, is heated and melts by the current flowing through it when the relevant nominal current of the fuse is clearly exceeded for a predetermined period of time. Due to its good insulation properties, ceramic is mostly used as the material for the insulating body.
- Such a fuse Use is known in principle, for example, from European patent EP 0 917 723 B1 or German published documents DE 10 2014 205 871 Al and DE 10 2016 211 621 Al.
- Fuses are available in different designs.
- simple device fuses which have a simple glass cylinder in which the fuse element is accommodated
- the ceramic body is filled with sand - mostly quartz sand:
- a distinction is made between types with solidified and non-solidified quartz sand.
- the fuse housing is made of a ceramic body, in which the solidified sand, the
- the quartz sand acts as an arc extinguishing agent: If the nominal current of the fuse is significantly exceeded - for example due to a high short-circuit current - this leads to a response of the fuse, in the course of which the fuse element melts and then evaporates due to the high temperature development. This creates an electrically conductive plasma that initially maintains the current flow between the electrical connections - an arc is formed. The arc is cooled again by the metal vapor of the vaporized fusible conductor being deposited on the surface of the quartz sand. As a result, the resistance inside the fuse link increases so that the arc is finally extinguished. The electrical line to be protected by the fuse is thus interrupted.
- NH fuses In the field of fuses, low-voltage high-performance fuses, so-called NH fuses, but also semiconductor protection fuses, so-called HLS fuses, such as are marketed for example under the product name SITOR, are known in principle from the prior art.
- NH fuses typically use one or more fusible links in the form of metal strips. The fusible link mostly has so-called bottleneck rows for the selective deactivation of the fuse.
- at least one solder depot can be applied to one or more of the fusible conductors, with the aid of which the overload characteristic of the fuse can be influenced.
- the forward energy value I 2 t which is decisive for the cut-out behavior of the fuse, is relatively large for NH fuses, which is why they have a rather sluggish characteristic.
- a fuse is described in the international patent application WO 2017/078525 A1, in which a current sensor is integrated in the pressure body of the fuse. With the help of this current sensor, the current flow occurring during normal operation through the fuse can be measured and transmitted to an interrogation unit arranged outside the fuse. However, since comparatively high temperatures can also occur in a fuse, it is questionable how reliably an integrated into the pressure body of the fuse grated sensor works over the life of the fuse.
- the invention is therefore based on the object to provide a fuse and a fuse body, which che at least partially overcome the aforementioned problems.
- the fuse according to the invention with an integrated measuring function has a fuse housing, which in turn has a first receiving space delimited by a pressure body and a second receiving space spatially delimited from the first receiving space.
- a fuse element is accommodated and held in the second receiving space, a measuring device in the second receiving space.
- the measuring device has a current transformer and an electronic assembly that is electrically conductively connected to the current transformer. Seen in egg ner longitudinal direction L, the height of the current transformer corresponds essentially to the height of the second receiving space, which is why the electronics module is arranged in a direction orthogonal to the longitudinal direction of the side of the current transformer.
- the first and the second receiving space are arranged one behind the other in a longitudinal direction L of the fuse, ie in the axial direction.
- the pressure body serves to absorb the pressure that occurs when the fuse is heated or triggered. Therefore, high demands on the mechanical strength and stability of the Protective housing provided.
- a protective housing is required to accommodate the measuring device, to fix it and to protect it from external influences such as moisture and / or dirt. The mechanical stability of this housing is therefore subject to significantly lower requirements.
- the current transformer arranged in the second receiving space serves on the one hand as a current sensor, which forwards the measured current measured values to the electronic module, where the measured values are processed further.
- the energy required for this is also obtained from the primary current with the help of the current transformer by electromagnetic induction, i.e. the operating current of the fuse.
- the current transformer thus also serves as an energy source for the electronic assembly. In order to provide sufficient energy for the electronic assembly even with low operating currents of the fuse and thus to ensure the reliability of the measuring device, the current transformer must be of a comparatively large size.
- the fuse must be kept compact so that it can also be used for retrofit applications as part of retrofitting or modernization of existing systems, in which a conventional fuse is used without a measuring device.
- the fusible fuse ideally has the dimensions of a standardized NH fuse
- the second receiving space in which the measuring device is accommodated and held is particularly limited in particular in the axial direction, ie in the longitudinal direction.
- the electronics module is arranged laterally, ie in the radial direction, next to the current transformer, more precisely: between the current transformer and an inner wall of the second receiving space.
- the current transformer can be dimensioned in such a way that its height corresponds to the height of the second receiving space, ie the current transformer takes up the second receiving space completely in height.
- the volume of the current transformer can thus be optimized in such a way that the energy provided for the electronic module is as large as possible. In this way it is possible to design a fuse with an integrated measuring function, which does not require an external power source to supply the measuring device with energy.
- the electronic assembly has a printed circuit board.
- the electronic assembly In order to comply with the requirements for the most compact possible design of the measuring device with the largest possible current transformer volume, it is necessary for the electronic assembly to be made as compact as possible. This is possible by means of a compact circuit board, for example by using integrated circuits.
- the printed circuit board has at least two rigid sections which are connected to one another in an electrically conductive manner by a flexible region.
- the circuit board As space-saving as possible in the second recording room, i.e. To be able to arrange in the area between the current transformer and the inner wall of the Schutzgeophu ses, it is advantageous to divide the circuit board into several rigid sections, which are electrically conductively connected to each other by flexible area.
- Both flexible conductors and so-called rigid-flex printed circuit boards, in which the flexible regions consist of printed circuit board material, with the rigid outer layers being removed, are suitable for this.
- the electronic assembly has a transmission device in order to transmit a measurement signal detected by the measuring device to a receiving device arranged outside the fuse.
- the transmission device With the help of the transmission device, the determined measurement data or also further processed data based on these measurement data can be transmitted to an external unit, for example a data collection device or a control room. In this way it is possible to determine the operating status of the fuse at any time without the need for a technician or installer who inspects the fuse on site.
- the measurement signal is transmitted wirelessly from the transmission device to the receiving device.
- a wireless transmission of the data to the external receiving device reduces the installation effort
- Safety fuse significantly simplified.
- common transmission methods such as Bluetooth, RFID (both active and passive), ZigBee, etc. are considered.
- the energy required for the transmission is advantageously obtained from the primary current again by means of the current transformer by means of electromagnetic induction.
- the overall space required for the fuse corresponds to the space of a standardized NH fuse. Since the fuse according to the invention with an integrated measurement function corresponds in terms of size to a conventional NH fuse, it also comes for retrofit applications in the context of retrofitting or modernization of existing systems in which a conventional fuse without a measuring device by means of a fuse with an integrated fuse Measuring function is replaced, in question.
- the fuse body according to the invention for a fuse with an integrated measuring function of the above-described NEN type has a first section, which is designed as a pressure body, which delimits the first receiving space for receiving the melting conductor, and a second section, which is designed as a protective body, which delimits the second receiving space for receiving the measuring device, on.
- the first receiving space and the second receiving space are spatially separated from each other in the fuse body.
- the first section of the fuse body is pressure-stable, i.e. trained to absorb the pressure occurring when the fuse is triggered and thus represents the actual pressure body of the fuse, while the second section merely represents a protective function for the measuring device, the mechanical stability and strength of which are subject to significantly lower requirements.
- the different mechanical strength properties of the two sections can be realized by means of a suitable manufacturing process, for example a 3D printing process.
- the first and the second section form a structural unit, i.e. the two sections do not have to be assembled when replacing or assembling the fuse, but are already firmly connected, which significantly simplifies the assembly effort.
- the securing body is formed in one piece.
- 3D printing colloquially referred to as “3D printing”
- a one-piece design of the fuse body is advantageous, since subsequent assembly steps can be avoided. The assembly costs can be avoided thereby further reduced.
- the hedging body is formed from a ceramic material or a thermostable plastic. Ceramic materials are due to their high compressive strength for the production of a Fuse body particularly suitable. Thermostable plastics, as long as they are sufficiently heat-stable, are characterized by their easier processing and, at the same time, comparatively low manufacturing costs.
- the hedging body is constructed in several parts, the pressure body being fixedly but releasably connected to the protective body.
- Fuses are comparatively high.
- the pressure body and the protective body are formed from different materials. In this way, both recording rooms can be adapted to the different requirements placed on them.
- the pressure body and the protective body are surrounded by an additional shell.
- the additional shell which can also consist of paper or a plastic coating, for example, the structural unit of the hedging body is emphasized.
- disassembly is prevented or at least marked by unauthorized third parties.
- the overall space required for the fuse corresponds to the space of a standardized NH fuse.
- the fuse body can also be used for retrofit fuses, ie as a replacement for a conventional fuse without a measuring function.
- Figure 1 is a schematic representation of a NH fuse known from the prior art
- FIGS. 2 to 4 are schematic representations of a first embodiment of the fuse according to the invention in different views;
- Figure 5 is a schematic representation of a second embodiment of the fuse.
- FIG. 1 shows schematically the basic structure of a standardized NH fuse, as it is already known from the prior art.
- the fuse 1 has two connection elements 3, which consist of one
- connection elements 3 are designed as knife contacts - however, this is not essential to the invention.
- the connection elements 3 are mechanically strong and tightly connected to a protective housing 2 with the height H, which is made of a solid, non-conductive and heat-resistant material, for example made of a ceramic, and serves as a pressure body for the fuse 1.
- the protective housing 2 generally has a tubular or hollow cylindrical basic shape and is pressure-tight to the outside, for example with the aid of two sealing caps 4.
- the connection elements 3 each extend through an opening formed in the closure caps 4 into the cavity of the protective housing 2. In this hollow space is at least a so-called fuse element 5 angeord net, which connects the two connection elements 3 electrically conductive.
- the remaining cavity is usually completely filled with an extinguishing agent 6, which is used to extinguish and cool the fuse 1 in the event of a trigger and completely surrounds the fuse element 5.
- an extinguishing agent 6 which is used to extinguish and cool the fuse 1 in the event of a trigger and completely surrounds the fuse element 5. Quartz sand, for example, is used as the extinguishing agent 6.
- quartz sand for example, is used as the extinguishing agent 6.
- the tripping characteristic - and thus the tripping behavior - of the fuse 1 can be influenced by the type, number, arrangement and design of the fuse element 3.
- the fusible conductor 5 generally consists of a good conductive material such as copper or silver and has a length, i.e. in its longitudinal direction L, several rows of bottlenecks 7 and one or more solder deposits 8 - so-called solder points.
- the longitudinal direction L is thus the parallel to an imaginary connecting line of the two connection elements 3. Via the narrow rows 7 and the solder points 8, the tripping characteristic of FIG.
- Fuse 1 is influenced and adapted to the respective application. For currents which are smaller than the nominal current of the fuse 1, only so much power loss is converted in the fuse element 5 that it can be quickly released in the form of heat via the extinguishing sand 6, the protective housing 2 and the two connection elements 3. The temperature of the fuse element 5 does not rise above its melting point. If a current flows which is in the overload range of the fuse 1, the temperature inside the fuse 1 rises steadily until the melting point of the fuse element 5 is exceeded and this passes through one of the bottleneck rows 7
- high fault currents - such as, for example occur due to a short circuit - so much energy is implemented in the fuse element 5 that it is heated practically over its entire length and consequently melts at all narrow rows 7 at the same time.
- FIG. 2 shows a side view of the fuse 100;
- FIGS. 3 and 4 show corresponding sectional views of the fuse 100 in plan and elevation.
- the fuse 100 has a fuse housing 110 with a first section 111 and a second section 112, which are arranged one behind the other in a longitudinal direction L of the fuse 100.
- the first section 111 is used as a pressure body 113 Recording a fusible conductor 105 is formed.
- the Druckkör by 113 serves to absorb the pressure that occurs when heating or triggering the fuse 100, which is why high demands are placed on the mechanical strength and stability of the pressure body 113.
- a first receiving space 115 is therefore formed within the pressure body 113, in which the fusible conductor 105 is received and is held.
- the first receiving space 115 is delimited by the pressure body 113 in the radial direction towards the outside and is closed in the axial direction, ie in the direction of the longitudinal direction L, by a closure element 104.
- the size of the fuse housing 110 corresponds to egg ner standardized NH fuse, as described above for Figure 1. Due to the identical dimensions, the fuse 100 according to the invention is ideally suited for retrofit applications, ie as a replacement for a conventional HN fuse.
- the fuse 100 has two connecting elements 103 designed as knife contacts, which are mechanically fixed and tightly connected to the fuse housing 110.
- the design of the two connection elements 103 is not essential to the invention.
- the fuse element 105 is electrically conductively connected to the two connecting elements 103.
- the fuse according to the invention is a sand-solidified fuse
- the remaining volume of the first receiving space 115 is filled with sand, usually quartz sand, which completely surrounds the fuse element 105 and as an extinguishing agent for extinguishing and cooling the fuse element 105 in Tripping case serves.
- the second section 112 is designed as a protective body 114, which is used to hold a measuring device 120 and delimits a second receiving space 116 provided for this purpose. Since the protective body 114 only serves to receive, fix and measure the measuring device 120 To protect against external impairments such as moisture and / or dirt, the mechanical stability of the protective body 114 is subject to significantly lower requirements than that of the pressure body 113.
- the protective body 114 is firmly connected to the pressure body 113, the first receiving space 115 and the second receiving space 116 are spatially separated from one another by a partition 117.
- the partition 117 can be an independent component; however, it is also possible to form the partition 117 as a component of the pressure element 113 or the protective element 114.
- the second receiving space 116 is closed by a further closure element 104.
- the lower connection element 103 which is designed as a knife contact, is guided through the second receiving space 116 into the first receiving space 115 and is connected there in an electrically conductive manner to the fusible conductor 105.
- the measuring device 120 has a current transformer 121 and an electronics module 122. With the help of the measuring device 120, the possibility is created by the
- Protective body 114 formed second receiving space 116, a current transformer 121 of the measuring device 120 so arranged around the lower connection element 103 that it completely fills the height of the second receiving space 116.
- the height h of the current transformer 121 essentially corresponds, i.e. within the usual dimensional tolerances during assembly, the height of the second receiving space 116 - also viewed in the longitudinal direction L.
- the volume of the current transformer 121 can be optimized, i.e. greatly enlarged to ensure reliable measurement and transmission of the measurement data even with a low primary current.
- connection elements te 103 not exactly in the center, but somewhat off-center in the
- an electronics module 122 of the measuring device 120 which is advantageously designed as a circuit board, space-saving angeord net.
- the electronics module 122 can also have a transmission device in order to transmit the measurement data or the processed data to a reception device (not shown) arranged outside the fuse 100.
- FIG. 5 schematically shows a second exemplary embodiment of the fuse 100 according to the invention.
- the basic structure of the fuse 100 and the fuse housing 110 corresponds to the first exemplary embodiment shown in FIGS. 2 to 4.
- the essential difference from the first exemplary embodiment is that the electronic assembly 122 is designed as a rigid-flex printed circuit board.
- the term “rigid-flex printed circuit board” is understood to mean a combination of rigid and flexible printed circuit board sections that are permanently connected to one another.
- the electronic assembly 122 has a central first rigid section 123, which is connected to a further rigid section 125 via a flexible section 124.
- the electronics module 122 can be designed in 3 dimensions and thus be optimally adapted to the limited space conditions within the protective body 114.
- This solution also has the advantage that there are no plug connections or line components for connecting the individual rigid circuit board sections 123, 125 must be installed, which reduces both the space requirement and the assembly effort.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018222552 | 2018-12-20 | ||
PCT/EP2019/085958 WO2020127488A1 (de) | 2018-12-20 | 2019-12-18 | Schmelzsicherung mit integrierter messfunktion sowie sicherungskörper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3844792A1 true EP3844792A1 (de) | 2021-07-07 |
EP3844792B1 EP3844792B1 (de) | 2023-01-25 |
Family
ID=69061353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19829139.5A Active EP3844792B1 (de) | 2018-12-20 | 2019-12-18 | Schmelzsicherung mit integrierter messfunktion |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220093356A1 (de) |
EP (1) | EP3844792B1 (de) |
CN (1) | CN113196439B (de) |
ES (1) | ES2937138T3 (de) |
WO (1) | WO2020127488A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11923163B2 (en) | 2019-01-16 | 2024-03-05 | Siemens Aktiengesellschaft | Fuse element and fuse |
DE102022211027A1 (de) | 2022-10-18 | 2024-04-18 | Siemens Aktiengesellschaft | Alterungsüberprüfung für Niederspannungskomponenten |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1163936C (zh) | 1996-08-08 | 2004-08-25 | 西门子公司 | 保险熔断器 |
JP4009793B2 (ja) * | 1998-03-18 | 2007-11-21 | 太平洋精工株式会社 | レアショート判断機能付きヒューズ素子、同ヒューズ及び同ヒューズの製造方法 |
EP0996137A1 (de) * | 1998-09-24 | 2000-04-26 | Ascom Systec AG | Starkstromschmelzsicherung |
US6211768B1 (en) * | 1999-08-18 | 2001-04-03 | Ontario Power Generation Inc. | Non-venting cutout mounted fuse |
DE102005012404B4 (de) * | 2005-03-17 | 2007-05-03 | Siemens Ag | Leiterplatte |
DE102006034404B4 (de) * | 2006-06-08 | 2014-05-28 | Dehn + Söhne Gmbh + Co. Kg | Überstromschutzeinrichtung für den Einsatz mit Überspannungsschutzgeräten, mit einem zusätzlichen als Schlagbolzen ausgeführten mechanischen Auslöser |
US7358845B2 (en) * | 2006-08-15 | 2008-04-15 | Eaton Corporation | Cable limiter and crab limiter employing replaceable fusible element |
AT506682B1 (de) * | 2008-04-17 | 2014-05-15 | Adaptive Regelsysteme Ges M B H | Strommesseinrichtung und verfahren zur galvanisch getrennten messung von strömen |
JP5634322B2 (ja) * | 2011-05-09 | 2014-12-03 | コーア株式会社 | ヒューズ抵抗器 |
DE202012006940U1 (de) * | 2012-07-18 | 2012-08-23 | Phoenix Contact Gmbh & Co. Kg | Überstromschutzeinrichtung zum Schutz eines Überspannungsschutzelements |
EP2885800B1 (de) * | 2012-08-17 | 2017-05-31 | Klaus Bruchmann GmbH | Baugruppe für eine schaltersicherungsanordnung mit messvorrichtung sowie sicherungshalter für eine baugruppe oder eine schaltersicherungsanordnung |
KR101389709B1 (ko) * | 2012-11-15 | 2014-04-28 | (주)엠에스테크비젼 | 과전류 차단 및 서지 흡수 기능을 갖는 복합 방호부품 |
DE102014205871A1 (de) | 2014-03-28 | 2015-10-01 | Siemens Aktiengesellschaft | Schmelzleiter und Überstrom-Schutzeinrichtung |
CN204360906U (zh) * | 2015-02-09 | 2015-05-27 | 苏州福瑞互感器有限公司 | 一种智能型干式变压器套管 |
NL2015736B1 (en) | 2015-11-06 | 2017-05-24 | Liandon B V | System for monitoring electric current in a network, and electrical fuse thereof. |
WO2017121474A1 (en) * | 2016-01-14 | 2017-07-20 | Schurter Ag | Mechanically activatable thermal fuse |
KR101747792B1 (ko) * | 2016-01-15 | 2017-06-15 | (주)우광테크 | 고압 배전선로에서 유도된 전원을 이용한 전원 공급용 변류기 |
DE102016211621A1 (de) | 2016-06-28 | 2017-12-28 | Siemens Aktiengesellschaft | Schmelzleiter und Überstrom-Schutzeinrichtung |
CN207097771U (zh) * | 2017-12-02 | 2018-03-13 | 武汉司德宝电气有限公司 | 一种紧凑型电动汽车熔断器 |
DE102018213522B4 (de) * | 2018-08-10 | 2022-06-02 | Siemens Aktiengesellschaft | Schmelzsicherung, Sicherungskörper, System und Verfahren |
-
2019
- 2019-12-18 CN CN201980083713.XA patent/CN113196439B/zh active Active
- 2019-12-18 WO PCT/EP2019/085958 patent/WO2020127488A1/de unknown
- 2019-12-18 US US17/414,412 patent/US20220093356A1/en active Pending
- 2019-12-18 ES ES19829139T patent/ES2937138T3/es active Active
- 2019-12-18 EP EP19829139.5A patent/EP3844792B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
CN113196439B (zh) | 2024-07-05 |
US20220093356A1 (en) | 2022-03-24 |
EP3844792B1 (de) | 2023-01-25 |
WO2020127488A1 (de) | 2020-06-25 |
CN113196439A (zh) | 2021-07-30 |
ES2937138T3 (es) | 2023-03-24 |
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