![]() Protective device for a magnetic strip having chip card
专利摘要:
The invention relates to a protective device (1) for a chip card (4) having a magnetic strip (3) with a receptacle (2) for the chip card (4) and with a magnetic and / or electromagnetic shield (5) comprising at least one layer of tinplate (6) on at least two broad sides (7) of the receptacle (2). In order to provide a powerful shielding (5), it is proposed that the tinplate layer (6) on both broad sides (7) of the receptacle (2) form a shield (5) covering at least the magnetic strip (3) without interruption. 公开号:AT513119A1 申请号:T50270/2012 申请日:2012-07-05 公开日:2014-01-15 发明作者:Michael Friedhelm Veigl 申请人:Veigl; IPC主号:
专利说明:
The invention relates to a protective device for a magnetic strip aufwei-send chip card with a receptacle for the chip card and with a magnetic and / or electromagnetic shield, which has at least one layer of tinplate on at least two broad sides of the recording. In order to be able to shield a chip card against EMC, it is known from the prior art (DE20112311U1) to form a receptacle for the chip card folded from a tinplate. The tinplate extends on both broad sides of the receptacle and shows on a broad side a central recess for insertion and removal of the chip card. Disadvantageously, this recording can not provide a stable shielding against an electrical and / or magnetic field, in particular with respect to RFID or also near static magnetic fields, as are known, for example, from loudspeakers in mobile telephones. The invention is therefore based on the object, starting from the above-described prior art to provide a protective device that can ensure a shield of a recorded chip card and in addition also cost-effective in their manufacture. The invention solves the problem set by the fact that the tinplate layer on both broad sides of the receptacle forms an at least the magnetic strip uninterrupted covering shield. If the tinplate layer forms a shield covering at least the magnetic strip uninterruptedly on both broad sides of the receptacle, in contrast to a receptacle folded from a tinplate, it can be avoided that electrical and / or magnetic fields develop uncontrollably on abutting edges of the tinplate, which can lead to damage to the function of the chip card. By this gap-half shielding in the card area to be shielded, such as magnetic strip, chip and / or the like, therefore, this can be particularly protected. In addition, with a continuous tinplate layer magnetic saturation effects can be kept small, so that even comparatively high magnetic flux densities of static magnetic fields can be reliably shielded. In addition, a chip card protected by the invention can also be securely shielded from an RFID query because its magnetic alternating fields or high-frequency radio waves can not couple with the chip card. However, the protective device according to the invention can not only ensure a very secure shielding against electrical and / or magnetic fields, it is also relatively inexpensive to manufacture because of the use of continuous tinplate. If the shield has at least three layers, which consist of the tinplate layer, a soft-magnetic material layer and an electrically insulating separating layer, the separating layer lying between the tinplate layer and the soft-magnetic material layer, a particularly high-quality shielding of static magnetic fields can be created. Namely, a soft magnetic material layer can only absorb a limited amount of flux density before it saturates and allows the magnetic flux to pass through. In the case of a first soft magnetic material layer and a second soft magnetic material layer, which are held apart by a separating layer, the passing static magnetic field can be supplied fanned out wider by the first saturable material layer of the second soft magnetic material layer. This may have the consequence that no punctual field overloads can form on the second soft magnetic material layer, so that a passage of the field through the shield can be avoided. In contrast to the prior art -3- can withstand even strong electrical and / or magnetic fields and so the chip card are particularly well protected. Advantageously, an electrically insulating separating layer has been found, which consists of polypropylene for spacing the soft magnetic material layers. A particularly stable shielding can be formed if the outer soft-magnetic material layer has a higher saturation magnetization than the inner tinplate layer High saturation limits for static magnetic field loading of the shielding can be ensured if a dynamo plate forms the soft-magnetic material layer. A particularly high level of protection of a chip card having a magnetic strip can thus be ensured. If the tinplate forms the soft-magnetic material layer, the manufacturing costs of the protective device can be reduced even further. Constructive simplicity and yet sufficient shielding can be achieved if the outer tinplate opposite the chip card has a minimum thickness of 0.3 mm and the inner tinplate has a minimum thickness of 0.15 mm. A sufficient spacing of the soft magnetic material layers can be achieved by the minimum thickness of the release layer is 0.3 mm. If the shield is embedded in a KunststofFhülle, a direct contact of the shield can be avoided with the smart card. This can, inter alia, reduce the risk of damage to the chip card by the tinplate layer. -4- As a particularly easy handling, the protection device turned out, the recording has an off-center opening for gripping the chip card used. In addition, it can be avoided that exposed in comparison to central gripping openings of the magnetic strip or parts of the magnetic strip and can be damaged by electrical and / or magnetic fields. In the figures, for example, the subject invention is illustrated in more detail using an exemplary embodiment. Show it 1 is a partially torn-off plan view of the protective device with inserted chip card and Fig. 2 is a sectional view according to ll-ll of Fig. 1st The protective device 1 shown for example in FIG. 1 forms a receptacle 2 for a chip card 4, which has a magnetic strip 3 and a chip 12. The chip card 4 can be inserted into the receptacle 2. The protective device 1 further comprises a shield 5 to shield the inserted into the receptacle 2 smart card 4 against magnetic and / or electromagnetic waves. This shield 5 is formed, inter alia, by a tinplate 6 on both broad sides 7 of the receptacle 2. In order to achieve a particularly stable and secure shield 5 of the chip card 4 used, the tinplate layer 6 is executed without interruption on both broad sides 7 of the receptacle 2 and forms a shielding the card area, such as chip and / or magnetic strip 3, covering shield 5 from. The tinplate layer 6 thus forms on both broad sides 7 of the receptacle 2 an at least the magnetic strip 3 uninterruptedly covering shield 5, in which there this tinplate layer 6 is integrally provided and unlike the prior art there no fold edges or edges forms. As a result, stray fields can be avoided on edges of the tinplate layer 6 and, inter alia, a particularly safe shielding faradayscher cage are created. -5- A located in the receptacle 2 smart card 4 is therefore particularly protected. In general, it is mentioned that the protective device 1 can be designed as a card case, bag, purse, etc. Furthermore, it is generally mentioned that the chip card 4 can be designed as a debit card, credit card, etc. 2, the shield 5 has three layers 6, 8 and 9. Of these, the tinplate view 6 is provided opposite the other layers 8, 9 to the chip card 4 on the inside. Next, a soft magnetic material layer 9 is provided, which is held with an electrically insulating separating layer 8 made of polypropylene from the tinplate view 6 at a distance. This distance is advantageously greater than 0.3 mm, preferably 0.3 mm, which distance results from the minimum thickness of the separating layer 8. As a soft magnetic material layer 9, a tinplate is also used, which can significantly reduce the production costs. Alternatively, however, it is conceivable that the soft-magnetic material layer 9 lying opposite the chip card 4 has a higher saturation magnetization compared to the inner tinplate layer 6. For example, by a dynamo plate this soft magnetic material layer 9 forms, but this has not been shown in detail In the case of the protective device 1 shown in FIG. 2, the tinplate 9 outside the chip card 4 has a minimum thickness of 0.3 mm, preferably 0.3 mm, and the inner tinplate 6 has a minimum thickness of 0.15 mm, preferably 0.15 mm , on. In addition, the shield 5 is embedded in a plastic sleeve 10 to protect the smart card 4. -6- The receptacle 2 has an off-center opening 11 for gripping the inserted chip card 4. This off-center opening 11 also indicates to a user in a simple way whether the smart card 4 has been inserted incorrectly by the magnetic strip 3 is visible through the provided on both broad sides 7 opening 11.
权利要求:
Claims (10) [1] Protective device for a magnetic strip (3) having chip card (4) with a receptacle (2) for the chip card (4) and with a magnetic and / or electromagnetic shield (5), the at least one layer (6) made of tinplate on at least two broad sides (7) of the receptacle (2), characterized in that the tinplate layer (6) on both broad sides (7) of the receptacle (2) at least the magnetic strip (3) uninterrupted covering shield ( 5) is formed. [2] 2. Protection device according to claim 1, characterized in that the shield (5) has at least three layers, which consist of the tinplate layer (6), a soft magnetic material layer (9) and an electrically insulating separating layer (8), wherein the separating layer (8 ) lies between the tinplate layer (6) and the soft magnetic material layer (9). [3] 3. Protection device according to claim 1 or 2, characterized in that the electrically insulating separating layer (8) consists of polypropylene. [4] 4. Protection device according to claim 1, 2 or 3, characterized in that the outer soft magnetic material layer (9) relative to the inner tinplate layer (6) has a higher saturation magnetization. [5] 5. Protection device according to claim 4, characterized in that a dynamo plate forms the soft magnetic material layer (9). [6] 6. Protection device according to claim 2 or 3, characterized in that tinplate forms the soft magnetic material layer (9). -2- [7] 7. Protection device according to claim 6, characterized in that compared to the chip card (4) outer tinplate (8) have a minimum thickness of 0.3 mm and the inner tinplate (6) have a minimum thickness of 0.15 mm. [8] 8. Protection device according to one of claims 2 to 7, characterized in that the minimum thickness of the separating layer (8) amounts to 0.3 mm. [9] 9. Protection device according to one of claims 1 to 8, characterized in that the shield (5) in a plastic sheath (10) is embedded. [10] 10. Protection device according to one of claims 1 to 9, characterized in that the receptacle (2) has an off-center opening (11) for gripping the inserted chip card (4).
类似技术:
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同族专利:
公开号 | 公开日 EP2869725B1|2018-12-26| EP2869725A1|2015-05-13| AT513119B1|2017-07-15| WO2014005169A1|2014-01-09|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US5941375A|1997-12-22|1999-08-24|Kamens, L.L.C.|Device for protecting magnetic cards and method of making same| DE102004041397B3|2004-08-26|2005-12-08|Siemens Ag|Storage device for contactless chip cards for protection against unauthorized reading| DE102008010732A1|2008-02-23|2009-08-27|Andrea Kornak|Card e.g. visa card, for use by customer of e.g. bank, has casing that is made of metal and/or metallic alloy such as iron sheet, and that is polished, electrolytically chromed, nickel-plated, copper-plated, silver-plated or gold-plated| AT377671B|1983-03-31|1985-04-25|Siemens Ag Oesterreich|UMBRELLA DEVICE| US4632250A|1983-07-22|1986-12-30|Dynic Corporation|Magnetic shielding members| JPH03241529A|1990-02-17|1991-10-28|Brother Ind Ltd|Magnetic tape issuing device| US20090067150A1|2005-03-22|2009-03-12|Tomoaki Ito|Protection Film for Preventing Leakage of Information, Portable Pouch, Card Case, and Information-Leakage Preventing Plate| DE102009006140A1|2009-01-26|2010-08-12|Curtis 1000 Europe Ag|Protective casing for e.g. passport, has outer layer made from foil of plastic, and adhesive layer formed on outer layer, where adhesive layer connects outer layer with metal foil that is cast with thin layer made of lubricated material|AT515445B1|2014-03-11|2016-01-15|Michael Friedhelm Veigl|Protective device with a receptacle for at least one chip card| AT516139A1|2014-08-08|2016-02-15|Michael Friedhelm Veigl|Protection device for a card|
法律状态:
2021-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20200705 |
优先权:
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申请号 | 申请日 | 专利标题 ATA50270/2012A|AT513119B1|2012-07-05|2012-07-05|Protective device for a magnetic strip having chip card|ATA50270/2012A| AT513119B1|2012-07-05|2012-07-05|Protective device for a magnetic strip having chip card| EP13756287.2A| EP2869725B1|2012-07-05|2013-07-05|Protective device for a chip card having a magnetic strip| PCT/AT2013/050133| WO2014005169A1|2012-07-05|2013-07-05|Protective device for a chip card having a magnetic strip| 相关专利
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