EP3523815A1 - Planarer übertrager mit integriertem ringkern - Google Patents
Planarer übertrager mit integriertem ringkernInfo
- Publication number
- EP3523815A1 EP3523815A1 EP17778305.7A EP17778305A EP3523815A1 EP 3523815 A1 EP3523815 A1 EP 3523815A1 EP 17778305 A EP17778305 A EP 17778305A EP 3523815 A1 EP3523815 A1 EP 3523815A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit
- transformer
- layer
- conductive layer
- conductor
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
- H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
- H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
- H01F2019/085—Transformer for galvanic isolation
Definitions
- Control tasks in particular as a buffer amplifier, can be used.
- These isolation amplifiers provide a galvanic isolation between a primary circuit and a secondary circuit and are suitable, for example, for intrinsically safe operation.
- the present invention relates to a transformer, in particular a planar, not susceptible to interference
- Intrinsically safe transformers or transformers are used for the galvanic isolation of circuits according to various standards, whereby both energy and signals and / or data can be transmitted via the transformers.
- various regulations and standards for example DIN EN 60079-11
- minimum distances for the separation of the circuits and thus also of the windings or windings of the transformers are specified for different safety classes of equipment and prescribed types of protection, so that, if these minimum distances are complied with, a circuit is considered intrinsically safe.
- a circuit is therefore intrinsically safe in this and in the context of the invention, if in this neither a spark nor a thermal effect below that in the standard
- the prescribed minimum distances are in turn dependent on the voltage peak and the insulating medium and are also in relation to the insulating medium in
- the minimum distance in a typical insulation class such as protection level ia, ib at 375 V
- a minimum separation distance with fixed insulation of, for example, 1 mm
- Creepage distances are specified under a protective layer of about 3.3 mm, with ia and ib defining respective protection levels and generally defining the highest and ic the lowest level of protection.
- Intrinsically safe transformers are therefore designed and optimized in terms of geometry so that the required separation distances for a particular
- Circuit having a laminated structure with a first magnetic layer and a second magnetic layer, wherein the first and the second
- Magnetic layer form magnetic core parts of a non-closed magnetic core.
- planar intrinsically safe transformer in particular a planar intrinsically safe transformer, to propose, which in particular has a closed magnetic core.
- Another object is to propose a planar transformer, in particular a planar intrinsically safe transformer, which has a smaller size compared to the prior art.
- the solution is a planar transformer, in particular intrinsically safe transformer, with the features of
- planar transformer in particular intrinsically safe transformer, with a vertical extension and a horizontal extension, which has a sandwich-like layer structure with a plurality of vertically stacked horizontally extending Layers, comprising a first and a second conductive, in particular electrically conductive, layer and at least one insulating inner layer, which is arranged between the two conductive layers, and a plurality of circuits, wherein a first circuit and at least one second circuit galvanically separated from each other are, and at least one ring-like
- magnetic core hereinafter also called magnetic ring core or core only
- hole which acts at least on the first circuit and on the second circuit.
- the core in particular has two end faces and two lateral surfaces, wherein the end faces are aligned substantially parallel to the horizontal extension of the layer structure.
- a planar, in particular intrinsically safe transformer is inventively characterized in that the core is disposed within the at least one insulating inner layer, that a conductor of the first circuit and a conductor of the second circuit each having a winding with at least one turn, and that the
- At least one turn of the first circuit and the at least one turn of the second circuit extend respectively to the first conductive layer and the second conductive layer and through the at least one insulating inner layer and through the hole of the core.
- the conductors of the first and the at least second electric circuit extend at least in sections in a common plane.
- the at least one turn of each of the at least two circuit circuits runs in sections in a plane above and in a plane below the ring-like magnetic core.
- Circuitry are thus essentially placed next to each other.
- a winding comprises or has at least one turn, wherein a turn is a section of a conductor which once wraps around or at least essentially wraps around the magnetic core.
- the present invention offers many advantages.
- planar transformer is designed, for example, as a printed circuit board transformer, then the toroidal core is completely integrated into the insulating printed circuit board material.
- the transformer according to the invention can also be used as a ring core coupler and the first and second
- the ring-like magnetic core may have various geometric shapes and thus be not only circular, but also oval or polygonal.
- the transmitter is designed as a printed circuit board transformer, in each case at least one first conductor for the first circuit and at least one second conductor for the second circuit are formed on the first conductive layer and on the second conductive layer wherein the at least one turn of the first circuit comprises the first trace on the first conductive layer and the first trace on the second conductive layer connected by means of a conductive via through the at least one insulating inner layer at one of its free ones
- the at least one turn of the second circuit comprises the second trace on the first conductive layer and the second trace on the second conductive layer by means of a conductive via through the at least one insulating inner layer at one of its free trace end portions connected to each other. It is under a free conductor track end
- Ring core substantially radiate toward the outer edge of the conductive layer. Furthermore, the
- the first circuit and / or the second circuit a plurality of turns and the plurality of turns of a
- Circuits are interconnected such that a trace of one turn is connected to a trace of the other turn by means of a conductive via through the at least one insulating inner layer at one of its free trace end portions.
- a winding may also have a plurality of turns, wherein a different number of turns per winding is possible, so that the transformer
- one winding can have several
- Winding segments each comprise at least one turn, wherein the segments may be spaced apart from each other.
- the first circuit and the at least second circuit having a first isolation distance from each other, and that at no geometric location of the transformer, the first isolation distance between the circuits is smaller than a minimum isolation distance TO.
- Fig. 1 shows a table with Creepage distances and creepage distances and separation distances, the values given in Table 5 corresponding to the version of the standard EN 60079-11 valid for the time of the present application.
- each of the circuits has a second insulation distance to the core, and that at no geometric location of the transformer of the second
- Insulation distance between the circuits and the core is smaller than a minimum isolation distance TO / 2 (TO divided by 2), that is, as half of the
- first conductive layer and / or the second conductive layer an outer layer of the first conductive layer and / or the second conductive layer, an outer layer of the first conductive layer and / or the second conductive layer, an outer layer of the first conductive layer and / or the second conductive layer, an outer layer of the first conductive layer and / or the second conductive layer, an outer layer of the first conductive layer and / or the second conductive layer, an outer layer of the
- each conductor of the first circuit running on an outer conductive layer is conductive to each at the same outer conductive layer
- Circuit has a third isolation distance, and that at no geometric location of the respective outer conductive layer of the transformer, the third
- Insulation distance between the circuits is smaller than a minimum isolation distance LO.
- the sandwich-like layer structure comprises at least one insulating outer layer, wherein the first conductive
- the conductive layer is covered by the insulating material of the insulating inner layer and insulating outer layer.
- a conductive layer is disposed between two insulating layers and thus is an inner conductive layer of the sandwich layer structure, each at an inner conductive
- the first isolation distance between the circuits is less than the minimum isolation distance TO.
- At least one insulating outer layer has a thickness that corresponds to the second insulation distance, wherein the second insulation distance and thus the thickness of the at least one insulating outer layer is not smaller than a minimum insulation distance TO / 2 (TO divided by 2), ie as half of
- the at least one insulating inner layer has an annular recess into which the annular magnetic core is embedded.
- the magnetic ring core of the insulating material of the insulating Surrounded inside layer, in particular completely surrounded, and isolated from the circuits.
- At least two insulating inner layers are arranged one above the other and connected to each other, in particular
- the plated-through holes are guided continuously through all interconnected insulating inner layers and lined with conductive material.
- an additional conductive layer can be arranged between two insulating inner layers.
- Figure 1 is a table with air and creepage distances
- Figure 2 is a schematic representation of a transformer with two circuits based on a first embodiment of the invention in
- FIG. 3 is a further schematic representation of the
- Figure 4 is a schematic representation of a transformer with two circuits based on a second embodiment of the invention in
- Figure 5 is a schematic exploded view of
- Figure 6 is a schematic representation of the magnetic
- Ring core and the windings of the two circuits of the transformer based on the first or second or a third embodiment in perspective view;
- Figure 7 is a schematic sectional view of
- Figure 8 is a schematic sectional view of
- Figure 9 is a further schematic sectional view of
- Figure 10 is a further schematic sectional view of the
- Figure 11 is a schematic representation of a transformer with two circuits based on a third embodiment of the invention.
- Figure 12 is a further schematic representation of a
- Figure 14 is a further schematic sectional view of the
- Embodiment in perspective view Embodiment in perspective view.
- intrinsically safe transformers 100 with a vertical extension and a horizontal
- the transformers 100 thus have a sandwich-like layer structure with several vertically stacked
- the transformers further each have a plurality of circuits, wherein a first circuit 150 and at least one second circuit 160 are galvanically separated from each other, at least one ring-like magnetic core 140 having a hole 145 which acts on at least the first circuit 150 and the second circuit 160.
- the core 140 is within the
- a conductor 151 of the first circuit 150 and a conductor 164 of the second circuit 160 i. a conductor provided for the current flow of the respective circuit has in each case a winding 152 or 162 with at least one winding 153 or 163.
- the at least one turn 153 of the first circuit 150 and the at least one turn 163 of the second circuit 160 extend respectively to the first conductive layer 110 and the second conductive layer 120, and through the at least one insulating inner layer 130 and through the hole 145 of the core 140th
- FIGS. 2, 3, 6, 8, 9 and 10 A second embodiment is shown in possible developments in Figures 4, 5, 6 and 7.
- a third embodiment is possible
- FIG. 1 shows a table with minimum distances
- Minimum clearances are each subdivided based on solid insulation, clearances or creepage distances. As the table shows, is in a typical
- protection level ia, ib at a voltage spike value of 375V hereinafter also referred to as protection level 375 V ia, ib, which as
- minimum separation distance with fixed insulation for example, 1 mm
- PCB a the creepage distances in air or under
- Isolation distance II Isolation distance II
- insulation distance 12 corresponds to at least T0 / 2
- insulation distance 13 corresponds to at least one according to a required level of protection
- FIG. 2 relates to the first exemplary embodiment of a planar intrinsically safe one Transformer according to the invention, here as
- PCB transformer is formed and two
- the conductive structures of the first electric circuit 150 and the second electrical circuit 160 are at the conductive layers 110 and 120 with the third
- Insulation distance 13 separated from each other, wherein 13 is equal to the prescribed minimum isolation distance L0 or greater. Good to recognize are the
- FIG. 3 shows, based on the transformer 100 from FIG. 2, a possible development of such with transparent insulating material, so that now also the integrated annular magnetic core 140, its hole 145 and the conductor tracks 154, 164 on the second conductive layer 120, the also an outer layer of the circuit board is easy to see. Also visible are the vias 155, 165 of the first and second circuits 150, 160.
- the windings 153, 163 of the windings 152, 162 of the first and second electric circuits 150, 160 are made of printed conductors 154, 164 on the outer layers and through vias 155, 165 formed and
- FIG. 6 shows, based on the transformer 100 from FIG. 2, in a possible further development of such, the magnetic toroidal core, in particular from FIG. 3, without
- FIGS. 8, 9 and 10 show, based on the transformer 100 from FIG. 2, in possible developments,
- Spaces surrounding inner insulating layer 130 is located, whose thickness ensures a second isolation distance 12 between the core and all other electrically conductive structures of the circuits 150 and 160, which is equal to half the minimum isolation distance TO or greater.
- the magnetic core is considered as electrically conductive and thus isolation technology as an equipotential surface. To the one required by a standard, the
- Minimum isolation distance of TO for solid insulation it is as follows proportionately composed of two second insulation distances 12: From the first winding 152 to the magnetic core 140 everywhere at least one insulation distance is maintained equal to half of the minimum isolation distance TO. From the magnetic core to all other windings (eg, the second winding 162) will now also at least one isolation distance
- a first isolation path from the winding 152 of the first circuit 150 on the left side of the transformer 100 extends directly over the surface of the first conductive layer 110 to the winding 162 of the second
- Circuit 160 on the right side of the transformer Likewise, the first isolation path also extends over the surface of the second conductive layer 120 (not shown). If the respective conductive layer 110 or 120 is an outer layer of the transformer 100, the shortest distance between the separate circuits 150 and 160 must be equal to the third insulation distance 13, which in turn is equal to the prescribed
- Minimum isolation distance L0 or greater must be.
- this shortest distance must be at least 3.3 mm if the respective conductive layer 110 or 120 as the outer layer of the
- Transformer 100 or an outer layer whose circuit board is coated with a special paint. Is missing For example, this lacquer coating, the shortest distance must be 10 mm instead of 3.3 mm (see Figure 1).
- a solder resist commonly used in printed circuit board technology can not be regarded as a protective varnish in the sense of a standard and can not therefore reduce the insulation distances, for example from 10 mm to 3.3 mm. Therefore, the soldering finish will not be discussed further below, although it is included in the
- Embodiments can be used.
- a second isolation path runs first from the
- Isolation path through the magnetic core (shown as a dashed line) and is not counted to from there
- Magnetic core can not be accepted as insulation material.
- FIG. 4 relates to the second exemplary embodiment of a planar intrinsically safe transformer 100 according to the invention, which is expediently again designed as a printed circuit transformer transformer and two separate circuits 150 and 160, each with a winding 152 or 162 each having a plurality
- the transformer shown here is constructed of a plurality of insulating inner layers 130 which are interconnected, for example, by
- FIG. 5 shows, based on the transformer 100 from FIG. 4, only the insulating layers 130 in one
- FIG. 7 shows, based on the transformer 100 from FIG. 4, a sectional view of the transformer in a possible development.
- the magnetic core 140 which consists for example of ferrite material, is embedded in a recess 135 of the middle insulating layer 130, wherein the recess 135 may be a cavity.
- the insulating material but also directly to the magnetic core
- the three inner insulating layers are in any case so interconnected, in particular
- Insulation material results, so that around the magnetic core 140 around in all spatial directions rotating solid insulation results, the thickness of a second
- Insulation distance 12 between the core and all other electrically conductive structures of the circuits 150 and 160 ensures equal to half
- FIG. 11 relates to the third exemplary embodiment of a planar intrinsically safe transformer 100 according to the invention, which is expediently again designed as a printed circuit transformer transformer and two separate circuits 150 and 160, each with a winding 152 or 162 each having a plurality
- the first conductive layer 110 is between the
- the second conductive layer 120 is disposed between the insulating inner layer 130 and the insulating outer layer 190.
- the conductive layers 110 and 120 are covered by the insulating material of the insulating outer layers 180 and 190, respectively.
- FIG. 12 shows, based on the transformer 100 from FIG. 11, a possible further development with transparent insulating material, so that now also the
- first and second circuits 150, 160 are formed from tracks 154, 164 on the conductive layers 110 and 120 and vias 155, 165 and enclose a closed magnetic core 140. Since the conductive structures of the first and second circuits 150, 160 on the conductive layers 110 and 120 now inside the solid insulating material, they no longer have to be the third from each other
- the transformer can be made even more compact with respect to its horizontal extent than the first and second embodiments, but at the expense of its vertical extent, which increases by the thickness of the additional outer insulating layers 180, 190.
- the transformer may be opposite the first and second
- Embodiment for the same horizontal extent more windings or winding segments and / or more
- Figures 13 and 14 show based on the transformer 100 of Figure 11 possible developments in
- Figure 14 can also be seen that is located around the magnetic core 140 around a circumferential in all directions insulation, whose thickness ensures a second isolation distance 12 between the core and all other electrically conductive structures of the circuits 150 and 160, which is equal to half
- Minimum isolation distance TO is or greater, wherein the insulation surrounding the core 140 is composed of a plurality of interconnected inner insulation layers 130. Furthermore, it can be seen in Figure 14 that the outer
- Insulation layers 180 and 190 have a thickness that corresponds to the second isolation distance 12.
- the first insulation path extends from the winding 152 of the first circuit 150 on the left side of the transformer 100 through the solid insulation material of the outer insulating layer. From there, the first insulation path extends over the surface of the outer insulating layer (shown as a dashed line), and from there again through the solid insulating material to the winding 162 of the second circuit 160 on the right side of the transformer 100. The first one runs in the same way
- Minimum insulation distance TO between the two windings and the transformer or transformer is thus dimensioned according to standards.
- the portion of the first isolation path that leads across the surface of the outer insulating layer (shown as a dashed line) is not counted here.
- Insulation path in sum must give at least the isolation distance TO.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016119164.7A DE102016119164A1 (de) | 2016-10-10 | 2016-10-10 | Planarer Übertrager mit integriertem Ringkern |
| PCT/EP2017/075266 WO2018069122A1 (de) | 2016-10-10 | 2017-10-04 | Planarer übertrager mit integriertem ringkern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3523815A1 true EP3523815A1 (de) | 2019-08-14 |
Family
ID=60009650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17778305.7A Withdrawn EP3523815A1 (de) | 2016-10-10 | 2017-10-04 | Planarer übertrager mit integriertem ringkern |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11443887B2 (de) |
| EP (1) | EP3523815A1 (de) |
| CN (1) | CN109844876A (de) |
| DE (1) | DE102016119164A1 (de) |
| WO (1) | WO2018069122A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3083365B1 (fr) | 2018-06-27 | 2020-07-17 | Safran Electronics & Defense | Transformateur comportant un circuit imprime |
| CN110120295B (zh) * | 2019-06-05 | 2024-07-02 | 深圳市京泉华科技股份有限公司 | 共模电感、共模电感绕制治具及绕制共模电感的方法 |
| CN116547771A (zh) * | 2020-09-29 | 2023-08-04 | 株式会社村田制作所 | 包括多层绕组的嵌入式磁性设备 |
| EP4092695A1 (de) * | 2021-05-18 | 2022-11-23 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Magnetische einlage mit elektrisch leitenden vertikalen durchkontaktierungen für einen bauteilträger |
| CN120727402A (zh) * | 2024-03-29 | 2025-09-30 | 华为数字能源技术有限公司 | 一种埋嵌式的电感磁器件、变压器及供电设备 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238484A (en) * | 1963-05-16 | 1966-03-01 | Cambridge Thermionic Corp | D-cores with associated windings for producing high q |
| DE4027994A1 (de) * | 1990-09-04 | 1992-03-05 | Gw Elektronik Gmbh | Hf-magnetspulenanordnung und verfahren zu ihrer herstellung |
| DE19615921A1 (de) * | 1996-04-22 | 1997-10-23 | Vacuumschmelze Gmbh | Induktives Bauelement in flacher Bauform |
| JP4030028B2 (ja) * | 1996-12-26 | 2008-01-09 | シチズン電子株式会社 | Smd型回路装置及びその製造方法 |
| DE10102367B4 (de) | 2001-01-19 | 2004-04-15 | Siemens Ag | Datenübertragungseinrichtung zur galvanisch getrennten Signalübertragung und Verwendung der Einrichtung |
| US7135952B2 (en) * | 2002-09-16 | 2006-11-14 | Multi-Fineline Electronix, Inc. | Electronic transformer/inductor devices and methods for making same |
| US7005955B2 (en) * | 2003-04-23 | 2006-02-28 | Hewlett-Packard Development Company, L.P. | Inductor or transformer having a ferromagnetic core that is formed on a printed circuit board |
| AT501073B1 (de) * | 2004-11-19 | 2007-05-15 | Siemens Ag Oesterreich | Induktives schaltungselement und verfahren zur montage eines induktiven schaltungselements |
| US20060109071A1 (en) | 2004-11-19 | 2006-05-25 | Thongsouk Christopher H | Circuit board inductor |
| US7436282B2 (en) * | 2004-12-07 | 2008-10-14 | Multi-Fineline Electronix, Inc. | Miniature circuitry and inductive components and methods for manufacturing same |
| US7158005B2 (en) * | 2005-02-10 | 2007-01-02 | Harris Corporation | Embedded toroidal inductor |
| US8581114B2 (en) * | 2009-11-12 | 2013-11-12 | Planarmag, Inc. | Packaged structure having magnetic component and method thereof |
| DE102012003365B4 (de) | 2012-02-22 | 2014-12-18 | Phoenix Contact Gmbh & Co. Kg | Planarer eigensicherer Übertrager mit Schichtaufbau |
| DE102012003364A1 (de) | 2012-02-22 | 2013-08-22 | Phoenix Contact Gmbh & Co. Kg | Planarer Übertrager |
| DE102012016569A1 (de) | 2012-08-22 | 2014-02-27 | Phoenix Contact Gmbh & Co. Kg | Planarer Übertrager |
| TWI546000B (zh) * | 2012-10-02 | 2016-08-11 | 健鼎科技股份有限公司 | 電路板封裝結構及其製造方法 |
| US9113570B2 (en) * | 2012-10-31 | 2015-08-18 | Tyco Electronics Services Gmbh | Planar electronic device having a magnetic component |
| KR20150025859A (ko) * | 2013-08-30 | 2015-03-11 | 삼성전기주식회사 | 코일 부품 및 이를 이용하는 전자 모듈 |
| US10141107B2 (en) * | 2013-10-10 | 2018-11-27 | Analog Devices, Inc. | Miniature planar transformer |
| CN105336476B (zh) * | 2014-06-03 | 2018-01-30 | 中达电子(江苏)有限公司 | 开关电源、emi滤波器、共模电感器及其绕线方法 |
| WO2015190229A1 (ja) * | 2014-06-11 | 2015-12-17 | 株式会社村田製作所 | コイル部品 |
| GB2528990B (en) * | 2014-08-14 | 2019-03-06 | Murata Manufacturing Co | An embedded magnetic component device |
| GB2529235B (en) * | 2014-08-14 | 2019-05-08 | Murata Manufacturing Co | An embedded magnetic component device |
| GB2531354B (en) | 2014-10-17 | 2018-01-10 | Murata Manufacturing Co | An embedded magnetic component Device |
| GB2531353B (en) * | 2014-10-17 | 2019-05-15 | Murata Manufacturing Co | Embedded magnetic component transformer device |
| WO2016111282A1 (ja) * | 2015-01-07 | 2016-07-14 | 株式会社村田製作所 | コイル部品 |
| GB2535765B (en) * | 2015-02-26 | 2019-06-19 | Murata Manufacturing Co | Embedded magnetic component transformer device |
-
2016
- 2016-10-10 DE DE102016119164.7A patent/DE102016119164A1/de active Pending
-
2017
- 2017-10-04 US US16/341,029 patent/US11443887B2/en active Active
- 2017-10-04 CN CN201780062756.0A patent/CN109844876A/zh active Pending
- 2017-10-04 WO PCT/EP2017/075266 patent/WO2018069122A1/de not_active Ceased
- 2017-10-04 EP EP17778305.7A patent/EP3523815A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018069122A1 (de) | 2018-04-19 |
| DE102016119164A1 (de) | 2018-04-12 |
| CN109844876A (zh) | 2019-06-04 |
| US20190237240A1 (en) | 2019-08-01 |
| US11443887B2 (en) | 2022-09-13 |
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