• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an electronic device comprising a printed circuit board (3), wherein the printed circuit board (3) is enclosed by a housing which comprises two housing parts (1, 2) connected by means of a screw (4). In this case, a first electrically conductive contact element (5) with a first printed circuit board contact (7) is contacted and abuts the screw (4) in the screwed state. A second electrically conductive contact element (6) is contacted with a second printed circuit board contact (8) and likewise abuts the screw (4) in the screwed-in state, so that when the screw (4) is screwed in between the two printed circuit board contacts (7, 8) there is an electrical connection , Once the screw (4) is unscrewed, the electrical connection inevitably detaches, causing a change of state of the device. A separate switch, which is coupled to a housing part (1, 2), is eliminated.
    公开号:AT514253A1
    申请号:T50267/2013
    申请日:2013-04-19
    公开日:2014-11-15
    发明作者:Karl Dipl Ing Asperger；Thomas Dipl Ing Jatschka；Oskar Dipl Ing Skuk
    申请人:Siemens Ag Österreich；
    IPC主号:
    专利说明:

    1 201303493
    Electronic device 5 The invention relates to an electronic device which comprises a printed circuit board, wherein the printed circuit board is enclosed by a housing which comprises two housing parts connected by means of a screw. 10 Electronic devices: are often subject to: special
    Safety requirements. They regularly have closed enclosures which prevent access to electronic components within: the device ::. Multi-part housings are usually bolted to open the case in Wartuhgs- or 15 repair operations.
    Often it is prevented by means of: suitable means that the housing is opened by a device user. If this happens, the separation of the housing parts will inevitably cause 2 0 a '/, u s t a rui s on the u n q of ο 1 ek t. r o: i 1 see device.
    For example, an electronic switch is arranged on a printed circuit board, which is in contact with a housing part. A release of the housing part actuates the switch, whereby the device changes its state. This change 25 is sufficient, for example, from an electronic logging of the device t.eman.i pu 1 a t. i cn up to a permanent functional restriction of the device.
    The invention is based on the object for a 30 electronic device of the type mentioned
    Indicate improvement over the prior art.
    According to the invention this object is achieved by the features of claim 1. Improvements are recited in dependent claims 35. 2/13 2 201303493
    Here is a first electrically conductive: Kontaktelernent contacted with a first circuit board contact and is the de r screw in einqench robbery: .er. Züstand on. In addition, a second electric Ie loin :; Contacts lornent with a second 5 Leiterp 1 old contact. contacted and abuts the screw in the screwed state, so that when the screw is screwed between the two Lei terplat'.tenkontakten an electrical connection. When the housing is closed, the electrically conductive screw thus ensures safe and permanent electrical operation
    Le i. t.erp 1 a t. Len contacts. Once the screw is unscrewed / this electrical connection inevitably dissolves, causing a change of state of the device. For example, an electronic circuit registers the IS interruption of the two driver disk contacts. A separate switch, which is coupled to a housing part, is eliminated. Bas blocking a switch, for example: by injecting an adhesive, is thus excluded. Overall, the invention allows a simple and fault-tolerant structure of a abgeschipherten device housing.
    Advantageously, the contact elements are in the manner of the screw, that the electrical connection of the two PCB contacts is given only when completely screwed screw 25. This prevents that only a slight opening of the device housing remains without consequences. As soon as the housing parts are loosened by means of the screw, the following inevitably loosens: the electrical connection between the board contacts with the intended sequence of a device state change.
    In one embodiment of the invention, the electronic includes. Device, a memory element and a microprocessor, wherein the memory element is at least partially deleted when the electrical connection between the PCB contacts is interrupted. One such measure: i: st in particular: useful for devices with special security requirements, 3/13 3 2Ό13 034 93: in terms of integrity and authenticity. If, for example, confidential data or cryptographic keys are stored on the storage element, opening the device result inevitably leads to the deletion of this data. 5 Unwanted device manipulation by a device user is thus reliably prevented.
    A further development provides that the electronic device is an on-board unit which is produced in a vehicle. Such :: 10 devices are used, for example, for toll collection and must therefore be protected against unauthorized access. Since mouthering devices are manufactured in large numbers, here the simple construction of the housing according to the invention is particularly advantageous, because many components ztt: detecting a device manipulation (for example, switches :): are saved. It is advantageous if at least one contact element is designed as a metal spring. Then the contact element 2 0 is located with a: spring force on the screw, whereby a permanent, vibration-resistant electrical connection is given. Advantageously, for ease of manufacture, it is preferable to have at least one housing part fabricated as an art: f f injection molding tool and at least one of the cartridges to be sprayed.
    In a further development, each housing part has projections, which are designed as holders for the: printed circuit board. The circuit board is fixed during assembly of the housing by means of these brackets, so that no further PCB mounting is required. Sülche extensions can for example Befestigungsdome around the provided for the attachment of the screw mounting holes: be. It is also beneficial if the first contact element between the circuit board and the first housing part is clamped. The same applies to the second contacts: learn nt, which is conveniently clamped between the circuit board and, second housing part 5. In this way, an electrical connection between the contact elements and the PCB contacts in the course of the housing assembly.
    Another favorable feature provides that the first: 10 Köntäktelement between the first housing part and the head of the screw is clamped. Furthermore, it is advantageous if the second contact element protrudes into a mounting hole of the second housing and so that the end of the second contact is learned. S: when the screw is screwed in, it rests on the shaft of the 15 screw:. Once the screw is screwed into the mounting hole and the screw head rests against the housing, the electrical connection between the PCB contacts. Conversely, this dissolves: electrical connection as soon as the Schrauben'kopf unscrewed only slightly 2 0 is: A: such expression is also insensitive to Gehäuseverwindungen: because the electrical contacts are located directly at the screw. The invention will now be described by way of example with reference to the accompanying drawings.
    In a schematic representation, the K i q. a section of an assembled housing. A first housing part 1 is connected to a second housing part 2 by means of a screw 4: Preferably, the housing parts: 1, 2 are injection molded from plastic. They are ausqoführt thin-walled, with fastening domes 11, 12 are provided around the mounting holes. In addition, the attachment hole of the first housing part 1 has a cylindrical countersink. In this reduction, the head of the screw 4 is sunk in the mounted state. The thread in the mounting hole of the second 5/13 5 201303493:
    Housing part 2 is advantageously formed as a result of the screwing of the screw. 4
    The Befestigungsigüngsdome 11, 12 of the two Gehäüseteile 1, 2 5 form a holder for a: printed circuit board 3. For example, the fixing dome 12 of the second housing part 2 is discontinued at its end, the paragraph with a breakthrough of the circuit board 3 forms a clearance fit. The printed circuit board 3 is fixed by an end-face support of the fixing dome 11 of the first housing part 1. An additional fixing of the printed circuit board 3 is not required.
    The contact surfaces of the circuit board 3 on the two 15 Befestigungsdomen 11, 12 are used to mounted in the
    Condition to establish an electrical connection to two Köntakteleinenten 5, 6. The circuit board 3 has for this purpose around the breakthrough on each side of a Leiberpiattenkontakt 7, 8, which are connected via interconnects with an electronic circuit 20. Each of these printed circuit board contacts 7, 8 is contacted with; a suitably shaped contact element 5, 6. GünsLiqerweise the contact elements 5, 6 are made of spring steel and molded with the respective housing part 1, 2. In a 25 alternative embodiment, the Kontakt.o 1 emont.o 5, 6 are inserted after the injection molding of the housing parts 1, 2 in recesses provided for this purpose.
    The first: contact element 5 connects the first 30 circuit board contact 7 with a Schraubenkontaktfiache 9, which, for example in the form of: the annular head end of the screw at the transition to the Schraubenscha f.'t vor.l. In this case, the end of the contact element 5 is as it were a Bel lag disc below the screw head, without the 35 inner edge of this disc touches the screw switch. Thus, there is an external connection between the screw 4 and the first contact element 6 only when the screw 4 is completely removed.
    In the second housing part 2, the end 10 of the second 5 contact element 6 is guided in the mounting hole in such a way that the fully screwed screw 4 with its shaft inevitably presses against this end 10 of the second contact element 6. Thus exists. in the assembled state by means of the second Kont.akt.e 1 ernonts 6 an electrical 10 connection between the screw 4 and the second
    PCB contact 8. The two PCB contacts 7, 8 are then electrically connected to each other via the fully screwed screw 4: 15 via printed conductors are the PCB contacts , 8 connected to an electronic circuit, not shown. This includes, for example: a memory element and a microprocessor. The electronic circuit with the microprocessor is arranged to detect an interruption of the 2Q electrical connection of the two printed circuit board clocks 7, 8 and to bring about a change of state of the electronic device.
    In a device designed as an on-board unit for road gauge detection 25, confidential data are stored in the memory element. These must be protected from access by the device user. As soon as the user attempts to open the device by releasing the screw 4, he inevitably interrupts the electrical connection 30 of the two printed circuit board components 7, 8. A suitably equipped electronic circuit recognizes this interruption and deletes the confidential data in the memory element , The on-board unit is then unusable and can, for example, only be reset by the manufacturer or toll operator 35 to an original state. 7.13
    权利要求:
    Claims (11)
    [1]
    1. Electronic device comprising a printed circuit board (3), the printed circuit board (3) being enclosed by a housing comprising two housing parts (1, 2) connected by means of a screw (4), characterized in that a first electrically conductive contact element (5) is contacted with a first printed circuit board contact (7) and abuts on the screw (4) in the screwed-in state: and that a second electrically conductive contact element (6) contacts a second printed circuit board contact (8) and is applied to the screw (4) in the screwed-in state, so with the screw screwed in (4) between the two Leiterplättehkontakteh (', $'). an electrical connection 15 is made.
    [2]
    2. Electronic device according to claim 1, characterized in that the contact elements (5, 6) abut in the way ah the screw t'4), that the electrical connection 20 of the two PCB contacts (7, H) only when fully screwed screw ( 4) is given.
    [3]
    3. Electronic device according to claim 1 or 2, characterized gakennzeichnat that the electronic device comprises a Speehnhereiement and a microprocessor and that the Speieherelement is at least partially deleted as soon as the electrical connection between the PCB contacts (7, S :) is interrupted.
    [4]
    4. Electronic device according to one of the claims 1 to 3, characterized gakannzeiohnet that the electronic device in one. Vehicle seconded on-board onit is,
    [5]
    5. Electronic device according to one of claims 1 to 4:., 35 characterized in that at least one. Contacts.nearly (5, 6¾) is designed as a metal spring 8/13 8 201303493
    [6]
    6. Electronic device according to one of the claims. 1 to 5, characterized in that at least one housing part (1, 2) is manufactured as a plastic injection-molded item and that at least one of the contact elements (5, 6) is injection molded with 5,
    [7]
    7. Electronic device according to one of claims 1 to 6, characterized in that each housing part (1, 2) extensions: which are aungebildet as holders for the printed circuit board (3).
    [8]
    8. Electronic device according to one of claims 1 to 7, characterized in that the first contact element (5) between the printed circuit board (3) and the first housing part (1) 15 is clamped.
    [9]
    9. Electronic device according to one of claims 1 to 8, characterized in that the second contact element (6) between the printed circuit board (3) and the second housing part (2) 2 0 is clamped isi.
    [10]
    10. Electronic device according to one of claims 1 to 9, characterized in that the first contact element (5) between the first housing part (1) and the head of the screw (4) 25 is clamped.
    [11]
    11. Electronic device according to one of claims 1 to 10, characterized in that the second contact element (6) projects into a mounting hole of the second housing part (2) 30, so that it rests with screwed screw (4) on the shaft of the Sohraübe (4) , 9/13
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2014170333A2|2014-10-23|
    SG11201508087RA|2015-11-27|
    EP2987392B1|2017-03-29|
    AT514253B1|2019-05-15|
    EP2987392A2|2016-02-24|
    WO2014170333A3|2014-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080310130A1|2007-06-12|2008-12-18|Tomoko Monda|Electronic apparatus|
    US20100142163A1|2008-12-05|2010-06-10|Kabushiki Kaisha Tokai Rika Denki Seisakusho|Circuit board and electronic device with the same|
    EP2482387A1|2011-01-26|2012-08-01|Diehl AKO Stiftung & Co. KG|Device for electrical and mechanical connection of two circuit boards arranged next to each other|
    FR2681134B1|1991-09-05|1994-09-09|Sagem|DEVICE FOR DETECTING THE OPENING OF AN APPARATUS.|
    GB0012478D0|2000-05-24|2000-07-12|Ibm|Intrusion detection mechanism for cryptographic cards|
    US7049970B2|2003-10-22|2006-05-23|International Business Machines Corporation|Tamper sensing method and apparatus|
    US8238095B2|2009-08-31|2012-08-07|Ncr Corporation|Secure circuit board assembly|
    DE102011013667A1|2010-12-20|2012-06-21|Continental Automotive Gmbh|On-board information system with antenna for receiving satellite-based geoposition data|CH711221A1|2015-06-16|2016-12-30|Landis+Gyr Ag|Housing for a device.|
    EP3840551A1|2019-12-20|2021-06-23|ZKW Group GmbH|Car module|
    法律状态:
    2019-09-15| PC| Change of the owner|Owner name: SIEMENS MOBILITY GMBH, AT Effective date: 20190814 |
    2021-12-15| HC| Change of the firm name or firm address|Owner name: SIEMENS MOBILITY AUSTRIA GMBH, AT Effective date: 20211108 |
    2021-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20210419 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50267/2013A|AT514253B1|2013-04-19|2013-04-19|Electronic device|ATA50267/2013A| AT514253B1|2013-04-19|2013-04-19|Electronic device|
    PCT/EP2014/057639| WO2014170333A2|2013-04-19|2014-04-15|Electronic device|
    SG11201508087RA| SG11201508087RA|2013-04-19|2014-04-15|Electronic device|
    EP14718562.3A| EP2987392B1|2013-04-19|2014-04-15|Electronic device|
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