DE102008023999A1 - Device for holding magnet in lamination stack of rotor of electrical motor, has magnet attached in retaining bracket by adhesive, which includes expanding agent expanding adhesive in predetermined degree during hardening of adhesive - Google Patents
Device for holding magnet in lamination stack of rotor of electrical motor, has magnet attached in retaining bracket by adhesive, which includes expanding agent expanding adhesive in predetermined degree during hardening of adhesive Download PDFInfo
- Publication number
- DE102008023999A1 DE102008023999A1 DE200810023999 DE102008023999A DE102008023999A1 DE 102008023999 A1 DE102008023999 A1 DE 102008023999A1 DE 200810023999 DE200810023999 DE 200810023999 DE 102008023999 A DE102008023999 A DE 102008023999A DE 102008023999 A1 DE102008023999 A1 DE 102008023999A1
- Authority
- DE
- Germany
- Prior art keywords
- adhesive
- magnet
- holding
- rotor
- cured
- 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- Withdrawn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
- 239000000853 adhesive Substances 0.000 title claims abstract description 55
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 55
- 239000003795 chemical substances by application Substances 0.000 title abstract 2
- 238000003475 lamination Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims abstract description 5
- 239000002313 adhesive film Substances 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 239000003822 epoxy resin Substances 0.000 claims abstract description 3
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 3
- 229920002050 silicone resin Polymers 0.000 claims abstract description 3
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 2
- -1 azo compound Chemical class 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Halterung eines Magneten nach dem Oberbegriff von Anspruch 1 und ein Verfahren zur Herstellung einer Vorrichtung zur Halterung eines Magneten nach dem Oberbegriff von Anspruch 11.The The invention relates to a device for holding a magnet according to the preamble of claim 1 and a method for the production a device for holding a magnet according to the preamble of claim 11.
Bekannt ist es, dass bei Magneten in Rotoren eine Gefahr des Brechens von Magneten besteht und Magnetteile beim Betreiben des Rotors in die Maschine eindringen können und diese beschädigen.Known it is that with magnets in rotors a danger of breaking of Magnet exists and magnetic parts in operating the rotor into the machine can penetrate and damage them.
Aufgabe der vorliegenden Erfindung ist es, die Nachteile des Stands der Technik zu vermeiden und eine einfach herzustellende und sichere Vorrichtung zur Halterung eines Magneten bereitzustellen.task The object of the present invention is to overcome the disadvantages of the prior art Technology to avoid and easy to manufacture and safe To provide a device for holding a magnet.
Die Aufgabe wird gelöst durch eine Vorrichtung zur Halterung eines Magneten, insbesondere eines Magneten in einer bewegten Vorrichtung, insbesondere in einem Rotor einer elektrischen Maschine, insbesondere in einem Blechpaket eines Elektromotors, mit einer Haltetasche, in die ein Magnet eingesetzt ist, der mittels eines Klebemittels befestigt ist, das sich beim Aushärten in einem vorbestimmten Ausmaß ausdehnt und das ein Treibmittel zum Aufschäumen eines Klebstoffs enthält.The Task is solved by a device for holding a magnet, in particular a magnet in a moving device, in particular in a Rotor of an electrical machine, in particular in a laminated core an electric motor, with a retaining pocket into which a magnet is inserted which is attached by means of an adhesive, which is in the Harden expands to a predetermined extent and containing a blowing agent for foaming an adhesive.
Die Lösung der Aufgabe liefert eine dauerhaft belastbare, haltbare und stoßsichere Positionierung des Magneten, wobei die Herstellung vereinfacht ist und zielgenau durchgeführt werden kann, ohne zusätzliche weitere Arbeitsschritte notwendig zu machen. Die Vorrichtung ist widerstandsfähig gegen Temperaturschwankungen und Mikrobewegungen und die Magneten werden auch bei großen Schwankungen hierdurch nicht gelöst. Es kann aufgrund der guten Ausfüllung der Fugen zwischen Mag nettasche und Magnet keien Korrosion auftreten, die insbesondere zur Ablösung von Magnetteilen und deren Eindringen in die Maschine führen kann. Das Einsetzen kann mit einem größeren Spielraum erfolgen. Das Klebemittel liegt kraft- und formschlüssig zwischen Magnet und Taschenwand an.The solution The task provides a durable, durable and shockproof Positioning of the magnet, whereby the production is simplified and carried out accurately can be without additional make further work steps necessary. The device is resistant against temperature fluctuations and micromotion and the magnets are also great at fluctuations not solved by this. It may be due to the good completion The joints between the magnet bag and the magnet do not cause corrosion especially for detachment of magnetic parts and their penetration into the machine can lead. The insertion can be done with a bigger margin respectively. The adhesive is between positive and positive Magnet and pocket wall on.
Zudem kann die Klebstoffmenge beispielsweise um den Faktor der Ausdehnung reduziert werden.moreover For example, the amount of adhesive may be by the factor of expansion be reduced.
Eine zuverlässige Bevorratung und zugleich ausreichend Platz zur Einführung des Magneten ist gegeben, wenn die Haltetasche seitlich, insbesondere an einer Schmalseite, zumindest eine Vorratsausformung zur Aufnahme des Klebemittels aufweist.A reliable Stocking and at the same time sufficient space for the introduction of the Magnets are given if the retaining pocket laterally, in particular on a narrow side, at least one Vorratsausformung for recording having the adhesive.
Vorteilhaft ist es, wenn die Haltetasche an einer einer Magneteinführungsöffnung gegenüberliegenden Seite offen ausgebildet ist. Die Öffnung kann somit durch einfaches Stanzen hergestellt werden und muss nicht zusätzlich an einer Seite wieder verschlossen werden.Advantageous it is when the holding pocket opposite to a Magneteinführöffnung Page open is formed. The opening can thus by simple Punching is done and does not have to be in addition to one side again be closed.
Eine gute Kraftverteilung und zugleich große Haltbarkeit liegt vor das Klebemittel im ausgehärteten Zustand eine Schaumstruktur aufweist.A good power distribution and at the same time great durability lies before that Adhesive in the cured Condition has a foam structure.
Auch durch stärkere Bewegungsbelastung werden die Magnete in ihrem Sitz nicht gefährdet, wenn das ausgehärtete Klebemittel mechanisch belastbar ausgebildet ist, insbesondere gegenüber Zugbelastung.Also through stronger ones Movement stress, the magnets are not endangered in their seat, if the cured one Adhesive is formed mechanically resilient, especially against tensile load.
Vorteilhaft ist es, wenn das Klebemittel Reaktionsharzklebstoffe und/oder Kontakt- und Lösungsmittelklebstoffe enthält.Advantageous it is when the adhesive reaction resin adhesives and / or contact and solvent adhesives contains.
Eine starke und zugleich gut berechenbare Ausdehnung und Umschließung des Magneten ist gewährleistet, wenn das Klebemittel als Treibmittel insbesondere Azo- und/oder Hydrazoverbindungen, insbesondere angepasst an das Reaktionsharz enthält.A strong and at the same time well calculable expansion and containment of the Magnets are guaranteed if the adhesive as blowing agent, in particular azo and / or hydrazo compounds, in particular adapted to the reaction resin.
Auf unterschiedlichste Anforderungen kann einfach reagiert werden, wenn das ausgehärtete Klebmittel elastisch ist, insbesondere Silikonharz enthält, oder im wesentlichen starr ist, insbesondere Epoxidharz enthält.On Different requirements can be easily responded to when the cured adhesive is elastic, in particular silicone resin contains, or substantially rigid is, in particular contains epoxy resin.
Eine zusätzlich gute Zentrierung in der Haltetasche ist gegeben, wenn das Klebemittel mittels Treibstoff expandierbare thermoplastische Hohlkugeln enthält.A additionally Good centering in the retaining pocket is given when the adhesive Contains fuel-expandable thermoplastic hollow spheres.
Eine zuverlässiger Halt des Klebemittels in der Haltetasche liegt vor, wenn das Klebemittel eine Klebstoff-Folie ist. Die Folie kann an den Vorratstaschen einfach aufgebracht werden und wird vom hindurch geschobenen Magneten nicht bewegt.A reliable Hold the adhesive in the retaining bag is present when the adhesive an adhesive film is. The foil can be easily attached to the storage bags be applied and is not pushed by the pushed magnet emotional.
Die Aufgabe wird ebenfalls gelöst durch ein Verfahren zur Herstellung einer Vorrichtung zur Halterung eines Magneten, insbesondere nach einem der Ansprüche 1 bis 10, wobei eine Haltetasche mit zumindest einer seitlichen Vorratsausformung zur Aufnahme von Klebmittel ausgebildet wird, wobei das Klebmittel zumindest in eine Vorratsausformung eingefüllt wird, und anschließend der Magnet in eine Magneteinführungsöffnung der Haltetasche eingeführt wird, der mittels des Klebmittels befestigt wird, das sich beim Aushärten in einem vorbestimmten Ausmaß ausdehnt, und das insbesondere ein Treibmittel zum Aufschäumen eines Klebstoffs enthält und insbesondere im ausgehärteten Zustand eine Schaumstruktur aufweist.The Task is also solved by a method for producing a device for holding a magnet, in particular according to one of claims 1 to 10, wherein a holding pocket with at least one lateral Vorratsausformung is formed for receiving adhesive, wherein the adhesive is filled at least in a Vorratsausformung, and then the Magnet in a magnet insertion opening of the Hold pocket inserted which is fastened by means of the adhesive which occurs during Harden to a predetermined extent, and in particular containing a blowing agent for foaming an adhesive, and in particular in the cured Condition has a foam structure.
Eine besonders einfache und schnelle Herstellungsart liegt vor, wenn die Haltetasche mittels eines Stanzverfahrens hergestellt wird.A particularly simple and fast production method is when the holding bag by means of egg nes punching process is produced.
Ein sicheres Verkleben wird gewährleistet, wenn das Klebmittel zunächst bei Raumtemperatur eingefügt wird und, nach Einsetzen des Magneten, anschließend bei einer erhöhten Aushärtetemperatur ausgehärtet wird.One secure bonding is guaranteed when the adhesive first inserted at room temperature and, after inserting the magnet, is then cured at an elevated curing temperature.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüchen und der nachstehenden Beschreibung, in der Ausführungsbeispiele des Gegenstands der Erfindung in Verbindung mit den Zeichnungen näher erläutert sind. Die Anführungen in den folgenden Ausführungsformen sind nicht einschränkend sondern lediglich beispielhaft zu verstehen.Further Features and advantages of the invention will be apparent from the claims and the description below, in the embodiments of the subject matter the invention in conjunction with the drawings are explained in more detail. The citation in the following embodiments are not limiting but merely by way of example.
Es zeigen:It demonstrate:
Da
das Klebmittel
- 11
- Magnetmagnet
- 22
- Rotorrotor
- 33
- Haltetascheholding pocket
- 44
- Klebemitteladhesive
- 55
- VorratsausformungVorratsausformung
- 66
- MagneteinführungsöffnungMagnet insertion opening
- 77
- Schmalseitenarrow side
- 88th
- BereichArea
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810023999 DE102008023999A1 (en) | 2008-05-18 | 2008-05-18 | Device for holding magnet in lamination stack of rotor of electrical motor, has magnet attached in retaining bracket by adhesive, which includes expanding agent expanding adhesive in predetermined degree during hardening of adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810023999 DE102008023999A1 (en) | 2008-05-18 | 2008-05-18 | Device for holding magnet in lamination stack of rotor of electrical motor, has magnet attached in retaining bracket by adhesive, which includes expanding agent expanding adhesive in predetermined degree during hardening of adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008023999A1 true DE102008023999A1 (en) | 2009-11-19 |
Family
ID=41180483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810023999 Withdrawn DE102008023999A1 (en) | 2008-05-18 | 2008-05-18 | Device for holding magnet in lamination stack of rotor of electrical motor, has magnet attached in retaining bracket by adhesive, which includes expanding agent expanding adhesive in predetermined degree during hardening of adhesive |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102008023999A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010012322A1 (en) | 2010-03-23 | 2011-01-05 | Daimler Ag | Rotor for electric motor for car, has permanent magnets held in accommodating opening of base body of rotor, where press fit exists between base body and permanent magnets and base body is made of soft magnetic material |
| WO2011091791A2 (en) | 2010-02-01 | 2011-08-04 | Lloyd Dynamowerke Gmbh & Co. Kg | Fastening element for fastening a magnet to a component of an electric machine, and an assembly and a component having such a fastening element |
| DE202011050715U1 (en) | 2011-07-13 | 2011-11-16 | Lloyd Dynamowerke Gmbh & Co. Kg | Receiving element for receiving magnets in an electrical machine and component with such a receiving element |
| WO2013029715A3 (en) * | 2011-08-27 | 2013-05-10 | Daimler Ag | Component or group of components of an electric machine and method for producing a component or group of components of an electric machine |
| DE102012023868A1 (en) * | 2012-12-06 | 2014-06-12 | Volkswagen Aktiengesellschaft | Electric machine and method for its production |
| US20150061444A1 (en) * | 2013-09-03 | 2015-03-05 | Aisin Seiki Kabushiki Kaisha | Electric motor |
| DE102015006203A1 (en) | 2015-05-13 | 2015-12-31 | Daimler Ag | Method for producing a stator and stator |
| DE102014219600A1 (en) | 2014-09-26 | 2016-03-31 | Volkswagen Ag | Method for producing a connecting element |
| WO2016091906A1 (en) | 2014-12-10 | 2016-06-16 | eMoSys GmbH | Permanently excited electric machine |
| CN108781011A (en) * | 2016-03-31 | 2018-11-09 | 爱信艾达株式会社 | The manufacturing method of rotor |
| DE102017207796A1 (en) * | 2017-05-09 | 2018-11-15 | Continental Automotive Gmbh | Method for fixing a permanent magnet in a magnet pocket of a rotor for an electric machine and rotor and electric machine |
| EP3618236A2 (en) | 2018-08-30 | 2020-03-04 | eMoSys GmbH | Permanently excited electric machine |
| US20220255379A1 (en) * | 2021-02-08 | 2022-08-11 | Magelec Propulsion Ltd. | Rotor for axial flux motor and method of manufacture |
| DE102022111442A1 (en) | 2022-05-09 | 2023-11-09 | eMoSys GmbH | Fluid-cooled, multi-phase permanently excited synchronous machine |
| US12261510B2 (en) | 2021-12-03 | 2025-03-25 | Omni Powertrain Technologies, Llc | Rotor core for axial flux motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117553A (en) * | 1990-06-25 | 1992-06-02 | General Electric Company | Method of assembling rotor magnets |
| US20040217666A1 (en) * | 2002-12-11 | 2004-11-04 | Ballard Power Systems Corporation | Rotor assembly of synchronous machine |
| DE102005052870A1 (en) * | 2005-10-28 | 2007-05-03 | Temic Automotive Electric Motors Gmbh | Electric machine e.g. small power motor, for e.g. motor vehicle, has retaining unit for magnetic unit such as permanent magnet, where retaining unit has longitudinal grooves and is arranged in or at rotor and/or in or at stator of motor |
| US20070222319A1 (en) * | 2005-12-06 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | Motor |
| DE102006061372A1 (en) * | 2006-12-22 | 2008-06-26 | Siemens Ag | PM rotor with radial cooling slots and corresponding manufacturing process |
-
2008
- 2008-05-18 DE DE200810023999 patent/DE102008023999A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117553A (en) * | 1990-06-25 | 1992-06-02 | General Electric Company | Method of assembling rotor magnets |
| US20040217666A1 (en) * | 2002-12-11 | 2004-11-04 | Ballard Power Systems Corporation | Rotor assembly of synchronous machine |
| DE102005052870A1 (en) * | 2005-10-28 | 2007-05-03 | Temic Automotive Electric Motors Gmbh | Electric machine e.g. small power motor, for e.g. motor vehicle, has retaining unit for magnetic unit such as permanent magnet, where retaining unit has longitudinal grooves and is arranged in or at rotor and/or in or at stator of motor |
| US20070222319A1 (en) * | 2005-12-06 | 2007-09-27 | Matsushita Electric Industrial Co., Ltd. | Motor |
| DE102006061372A1 (en) * | 2006-12-22 | 2008-06-26 | Siemens Ag | PM rotor with radial cooling slots and corresponding manufacturing process |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091791A2 (en) | 2010-02-01 | 2011-08-04 | Lloyd Dynamowerke Gmbh & Co. Kg | Fastening element for fastening a magnet to a component of an electric machine, and an assembly and a component having such a fastening element |
| DE102010012322A1 (en) | 2010-03-23 | 2011-01-05 | Daimler Ag | Rotor for electric motor for car, has permanent magnets held in accommodating opening of base body of rotor, where press fit exists between base body and permanent magnets and base body is made of soft magnetic material |
| DE202011050715U1 (en) | 2011-07-13 | 2011-11-16 | Lloyd Dynamowerke Gmbh & Co. Kg | Receiving element for receiving magnets in an electrical machine and component with such a receiving element |
| WO2013029715A3 (en) * | 2011-08-27 | 2013-05-10 | Daimler Ag | Component or group of components of an electric machine and method for producing a component or group of components of an electric machine |
| DE102012023868A1 (en) * | 2012-12-06 | 2014-06-12 | Volkswagen Aktiengesellschaft | Electric machine and method for its production |
| WO2014086966A3 (en) * | 2012-12-06 | 2015-01-15 | Volkswagen Ag | Electric machine and method for producing same |
| CN104854781B (en) * | 2012-12-06 | 2017-11-03 | 大众汽车有限公司 | Motor and its manufacture method |
| CN104854781A (en) * | 2012-12-06 | 2015-08-19 | 大众汽车有限公司 | Electric machine and method for producing same |
| US9570949B2 (en) * | 2013-09-03 | 2017-02-14 | Aisin Seiki Kabushiki Kaisha | Electric motor with permanent magnet having curved outer wall and flat rear wall |
| US20150061444A1 (en) * | 2013-09-03 | 2015-03-05 | Aisin Seiki Kabushiki Kaisha | Electric motor |
| DE102014219600A1 (en) | 2014-09-26 | 2016-03-31 | Volkswagen Ag | Method for producing a connecting element |
| WO2016091906A1 (en) | 2014-12-10 | 2016-06-16 | eMoSys GmbH | Permanently excited electric machine |
| DE102014018309A1 (en) | 2014-12-10 | 2016-06-16 | eMoSys GmbH | Permanent-magnet electric machine |
| DE102015006203A1 (en) | 2015-05-13 | 2015-12-31 | Daimler Ag | Method for producing a stator and stator |
| CN108781011B (en) * | 2016-03-31 | 2021-02-05 | 爱信艾达株式会社 | Manufacturing method of rotor |
| CN108781011A (en) * | 2016-03-31 | 2018-11-09 | 爱信艾达株式会社 | The manufacturing method of rotor |
| DE102017207796A1 (en) * | 2017-05-09 | 2018-11-15 | Continental Automotive Gmbh | Method for fixing a permanent magnet in a magnet pocket of a rotor for an electric machine and rotor and electric machine |
| DE102017207796B4 (en) | 2017-05-09 | 2023-12-14 | Vitesco Technologies GmbH | Method for attaching a permanent magnet in a magnetic pocket of a rotor for an electrical machine |
| EP3618236A2 (en) | 2018-08-30 | 2020-03-04 | eMoSys GmbH | Permanently excited electric machine |
| US20220255379A1 (en) * | 2021-02-08 | 2022-08-11 | Magelec Propulsion Ltd. | Rotor for axial flux motor and method of manufacture |
| US12348087B2 (en) * | 2021-02-08 | 2025-07-01 | Omni Powertrain Technologies, Llc | Rotor for axial flux motor and method of manufacture |
| US12261510B2 (en) | 2021-12-03 | 2025-03-25 | Omni Powertrain Technologies, Llc | Rotor core for axial flux motor |
| US12489338B2 (en) | 2021-12-03 | 2025-12-02 | Omni Powertrain Technologies, Llc | Rotor assembly for axial flux motor |
| DE102022111442A1 (en) | 2022-05-09 | 2023-11-09 | eMoSys GmbH | Fluid-cooled, multi-phase permanently excited synchronous machine |
| WO2023217693A1 (en) | 2022-05-09 | 2023-11-16 | eMoSys GmbH | Fluid-cooled, multi-phase permanently excited synchronous machine |
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| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| R012 | Request for examination validly filed | ||
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Effective date: 20150421 |
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| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |