• 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:
    SPRING ORIENTED RFID CARD. The present invention relates to an apparatus for providing an RFID device for integration into a tire. A printed circuit board (PCB) is provided with a pair of asymmetrical arms, forming notches at the opposite ends of the PCB. The helically wound antenna elements are positioned in the notches, so that the ends of the asymmetrical arms are positioned adjacent to the closest access to the individual helically wound antenna elements.
    公开号:BR112013004929B1
    申请号:R112013004929-4
    申请日:2010-08-30
    公开日:2020-11-03
    发明作者:Jay Clifford Sinnett
    申请人:Compagnie Générale Des Etablissements Michelin；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [0001] The present invention relates to RFID (Radio Frequency Identification) devices for integration into tires. More particularly, the present invention relates to the RFID apparatus for providing improved resistance to antenna fatigue failure. BACKGROUND OF THE INVENTION
    [0002] Electrical circuits are used in a variety of environments that may exhibit certain physical, chemical and electrical factors so that the circuit is both protected and designed to withstand. The present invention mainly relates to physical factors such as mechanical stress, leading to fatigue, which in turn can cause the circuit to malfunction by physically breaking or weakening a specific part of the circuit. A typical location for such a malfunction is near the point where a wire, cable or other conductor is connected to an electrical circuit. In circumstances where the wire and the circuit connected to it can move or rotate relative to each other, the wire may incur a concentration of mechanics and / or fatigue at or near the connection point for the circuit. Mechanical stresses such as repeated bending or twisting, for example, can lead to a weakening of the wire until a break occurs.
    [0003] Electronics integrated into a tire or other product offer potential advantages such as control of assets and measurement of physical parameters such as, for example, temperature and pressure. For the purposes of this disclosure, the phrases 'integrated into a tire' or 'integration into a tire' denotes any association of an electronic device with a tire, including, but not limited to, encased or adhered totally or partially within or for any part of the tire or attached to an inner or outer surface of the tire.
    [0004] Often many of these systems rely on a wireless data link to communicate with an information system outside the vehicle. Such information systems may include non-limiting examples, on-board computer systems, driving interrogators or manual interrogators. In addition, the types of data communicated over these wireless data links are wide and varied and include not only the temperature and pressure mentioned above, but also other physical parameters such as the tire's rotation speed, as well as the corresponding data production data and a host of other information. Whatever the type of data transmitted, the wireless data link requires an antenna to be attached to the electronics on the tire. If the electronics and / or antenna are adhered to the tire rubber, tire flexing due to the tire construction process or normal use can induce the antenna to separate from the electronics due to cracking, breakage or fatigue.
    [0005] U.S. Patent No. 7,196,616 (Sinnettet al.) Discloses apparatus and methodology for providing a graduated stiffness, voltage-resistant electrical connection. A material is configured around the cable and close to the connection point for the circuit in order to create a region of reduced flexibility or graduated stiffness near the connection point. Another example of a tire electronics system can be found in US Patent No. 7,102,499 (Myatt), which relates to an electronic communications device for a tire that includes a radio device and an antenna to be attached to or incorporated on a tire.
    [0006] US Patent Application Publication No. 2007/0274030 A1 (Robert) also refers to the tire electronics, and more particularly discloses an electronic module, designed to be incorporated into a tire comprising a functional device, a support and at least one device for electrically connecting, a wire and a device for mechanically securing the wire, separate from the electrical connection device, for mechanically securing the wire to the support.
    [0007] The PCT Order published as International Publication Number WO 2006/098710 A1 (Sinnett et al.) Is directed to a voltage-resistant electrical connection for coupling an antenna or other conductive cable to a circuit.
    [0008] Another similar subject is described in JP2007049351A entitled "Electronic Tag For Tire And Pneumatic Tire" as an electronic tag with a coil-shaped antenna connected to an integrated circuit chip. The coil-shaped antenna includes double-step coiled portions with larger-step winding attached to the integrated circuit chip. U.S. Patent No. 6,836,253 82 (Strache et al.) Describes a transmitter or receiver unit for the construction of elastic structures, including tires. The unit may include an antenna taking various forms, including a coiled wire configuration.
    [0009] The PCT Order published as International Publication Number WO 2009/134243 (Sinnettetal.) Is directed to an In-Plan RFID Antenna incorporating a voltage-resistant electrical connection for coupling an antenna cable to a circuit. This published Order describes a technique similar to that described with reference to the known devices illustrated here in Figure 2 and described later in comparison with the present subject.
    [0010] Although several implementations of electronic tire devices such as RFID devices in electronic tire systems have been developed, and although several methodologies ■ have been developed to relieve stress at electrical coupling points, no project has emerged that generally encompasses all the desired characteristics as hereinafter, presented in accordance with the present technology. SUMMARY OF THE INVENTION
    [0011] Taking into account the recognized characteristics found in the state of the art and directed by the present subject, the improved apparatus and the methodology to provide an improved antenna configuration and the electrical connection for RFID devices were provided.
    [0012] In an exemplary embodiment of the present subject, an RFID device is provided for integration into a tire. The device includes a printed circuit board (PCB), having the upper and lower surfaces outlined by the opposite end portions and opposite side portions and incorporates a plurality of conductive lines on the upper surface of said PCB. The PCB includes a pair of asymmetrical arms, extending from one end of the same forming a notch on the end of the PCB. The plated through path pierces the PCB from the upper surface to the lower surface and has a conductive trace element surrounding the path on the upper surface of said PCB and the conductive trace element is electrically coupled to the plurality of conductive traces . A portion of the end of the helically wound antenna element is positioned within the notch and within a plane defined by the top surface of the PCB. The helically wound antenna element is wound with a predetermined spacing, so that the pair of asymmetric arms differs in length by half the predetermined pitch, and one end of each arm of the pair of asymmetric arms is extend so that it ends adjacent to the access closest to the helically wound antenna element.
    [0013] In certain embodiments a non-conductive elastomeric material wraps around the PCB and at least part of the antenna element and fills the notch to synergistically provide, along with the positioning of the antenna within the notch and the plane of the PCB, a voltage gradient controlled to connect the antenna to the PCB.
    [0014] In specific modalities, the antenna element comprises a helically wound conductor with an external diameter between about 1.15 and 1.25mm, while in the selected modalities the antenna element comprises a helically wound conductor with a outer diameter of about 1.2 mm. In certain embodiments, the helically wound coiled conductor with a single step between turns ranging from about 0.735 mm to 0.803 mm per revolution. In specific modalities, the only step between turns is about 0.769 mm per turn.
    [0015] In still further embodiments, the device additionally comprising a second notch formed by a second pair of asymmetric arms positioned at the opposite end of said PCB, the second plate coated with plate completely pierces the PCB and a second antenna is positioned within said second notch and in the plane defined by the top surface of the PCB.
    [0016] In the specific modality of the present subject, the difference in the length of the asymmetric arms may correspond to about 0.3675 and 0.4015 mm. In more specific ways, the difference in length of the asymmetric arms can correspond to about 0.3845 mm.
    [0017] Additional objects and advantages of the present subject are set forth in, or will be apparent to, those skilled in the technique of the detailed description in this document. In addition, it should be further appreciated that modifications and variations to elements and features specifically illustrated, referred to and discussed in this document can be practiced in various modalities and uses of the invention without departing from the spirit and scope of the subject. Variations may include, but are not limited to, replacement of equivalent means, features, or steps for those illustrated, referenced, or discussed, and inversion, functional, operational, or positional, of various parts, features, steps, or the like.
    [0018] Furthermore, it should be understood that different modalities, such as different modalities currently preferred in the present subject, may include different combinations or configurations of characteristics, stages, or elements or their equivalents currently disclosed (including combinations of characteristics, parts, or stages or configurations thereof not expressly indicated in the figures or specified in the detailed description of such figures). Additional modalities of the present subject, not necessarily expressed in the summarized section, may include and incorporate various combinations of aspects of the characteristics, components, or steps referenced in objects summarized above, and / or other characteristics, components or steps as discussed in this application. Those skilled in the art will better appreciate the characteristics and aspects of such modalities, and others, by evaluating the rest of the specification. BRIEF DESCRIPTION OF THE DRAWINGS
    [0019] The complete and skillful disclosure of the present invention, including the best way, directed to a person skilled in the art, is provided for in the specification, which makes reference to the attached figures, in which: Figure 1 illustrates a top view of an exemplary RFID device according to the present technology for integration into a tire; figure 2 shows a top view of a previously known RFID device; and figure 3 shows a top view of the RFID device on an enlarged scale, taken from the point of view of arrows 3-3 in figure 1.
    [0020] The repetition of the use of reference characters throughout this specification and attached drawings is intended to represent identical or analogous characteristics or elements of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    [0021] As discussed in the Summary of the Invention section, the present topic is particularly concerned with devices to provide improved resistance to antenna fatigue failure for RFID devices.
    [0022] The selected combinations of aspects of the disclosed technology correspond to a plurality of different modalities of the present invention. It should be noted that each of the exemplary modalities presented and discussed in this document should not imply limitations of the present subject. Features or steps presented or described as part of one modality can be used in combination with aspects of another modality - to produce even more modalities. In addition, certain characteristics can be exchanged with similar devices or features not expressly mentioned that perform the same or similar function.
    [0023] Reference will now be made in detail to the currently preferred embodiments of the subject RFID device but with reference first to Figure 2 which illustrates a top view of a previously known RFID device 200 for comparison with the present technology.
    [0024] As can be seen from figure 2, the RFID device 200 includes a printed circuit board (PCB) 202 in which a number of conductive strips 204 is provided. An integrated circuit (IC) device 220 is mounted on the PCB 202 in a conventional manner and is electrically connected to tracks 204 and, through portions 230A, 2308 of tracks 204 for antenna elements 210, 212. It should be appreciated that the illustrated antenna elements, 210, 212 are not designed for scale and they are intended to be extended after the helical shape illustrated to a length corresponding to at least approximately the resonant frequency of the RFID system.
    [0025] Portions 230A, 2308 of line 204 surrounding sheet-lined tracks completely as exemplified by the sheet-lined track 234A that pass through PCB 202 and connect to a pair of solder pads (not shown separately) on the bottom surface of PCB 202. The end portion of helical antenna element 210 continues in an uninterrupted pattern through orifice 334A and around until it touches the solder pads. When the end portion of the helical antenna element 210 touches the solder pad, it can be connected to the solder pad as by welding.
    [0026] Furthermore, it should be noted that in the previously known configuration of figure 2, the antenna elements 210, 212 are placed within the plane of PCB 202 and, more specifically, between arm portions 282, 286, and 284, 288 A graduated stiffness of the electrical connection is obtained through the synergistic cooperation of the arms, antenna element and a non-conductive elastomeric material 250 between the arms and involving the antenna element. The known arrangement, as well as the present embodiment, all portions of the assembled device can be coated with an adhesive agent such as Chemlok © available from LORD Corporation, prior to incorporating the assembled device into the non-conductive elastomeric material. Placing the antenna on the plane of PCB 202 allows the opportunity to increase the thickness T (figure 3) of PCB 202, in order to provide a stronger mounted device.
    [0027] With more attention to figure 2, it will be seen that PCB 202 is provided with notch portions between the arms 282 and 284, 286, 288. The notch portions are configured to provide curved portions that define the location of the helical spring wire antenna elements 210, 212. It will be seen that portions of the arm 282 and 284, 286, 288, correspond to pairs equal to the length of the arms, as illustrated by the vertical line 242 intercepting both ends of the arm, 262 and 264 at the extreme end of the arms 284, 288, respectively, at the right end of figure 2. This gives rise to the possibility of positioning the antenna 212, which point 274 can find in close juxtaposition to the point of the end 264 of arm 288, but, because the arms 284 and 288 are of equal length, a generally corresponding point 276 on the antenna 212 near the end point 262 of the arm 284 is positioned at a distance from the end point 262 due to the pa the winding of the helical antenna.
    [0028] With reference to figure 1, a top view of an exemplary RFID device 100 according to the present technology for integration into a tire is illustrated. Those
    [0029] skilled in the art will appreciate that while the device described here has specific use in relation to tire technology, this is not a limitation of the device itself when such a device can be used with other technologies also where damage to the device or to the electrical connections depending on the induced voltage. An shipping pallet or container for moving products that can be identified using the RFID 100 device is an example.
    [0030] The RFID device 100 according to the present technology includes all the features described above in relation to the known device 200 as illustrated by the corresponding series labels 100. In general, the device 100 offers an integrated circuit device 120 mounted on a printed circuit board (PC) 102. PC board 102 includes conductive traces 104 and portions 130A, 1308 around the plate-clad plate completely through which antenna elements 110, 112 can be extended and welded entirely in a similar manner to that illustrated in figure 2, corresponding to known device 200.
    [0031] In contrast, the RFID 100 device, according to the present technology, provides arms, 182, 186 and 184, 188 that are asymmetrical, so that the arms of each of the two pairs of arms differ in length, this difference is illustrated by the difference in spacing between vertical lines 142, 144 that touch end portions 162, 164 of arms 184, 188, respectively. A similar difference in arm length from arms 182,186 is illustrated, but not separately labeled to reduce confusion in the figure.
    [0032] Furthermore, with regard to the modality illustrated in figure 1, it will be noted that the coil pitch of the antenna elements 110, 112 is configured so that the ends, 162, 164 of the arms 184, 188 extend from so that they end directly adjacent to the nearest access 172, 174, to the helical spring forming antenna element 112. Thus, the fatigue failure of the antenna wire of such arms 282, 284, 286, 288, combined with the potting material 250 was designed to direct the known device 200 of figure 2 is extended to a new level and significantly improved by making the reinforcement provided by the arms precisely located in relation to the individual turns of the helical spring forming antenna elements 110, 112 .
    [0033] In this way the synergistic cooperation of the arms 182, 184, 186, 188, the antenna elements 110, 112 and the non-conductive elastomeric material 150 surrounding the arms and the antenna element as noted above, with respect to state of the art of figure 2 is improved. In the present embodiment as in the known arrangement mentioned above, all parts of the assembled device can be coated with an adhesive agent such as Chemlok® before the incorporation of the arms and antenna elements in the elastomeric material 150. Position the ends of the arms 182, 184, 186, 188, so that they end directly adjacent to the closest access to the helical spring forming antenna element and wrap the assembly in the elastomeric material that is attached to the components, a significantly improved fatigue strength for the antenna element can be achieved.
    [0034] In an exemplary configuration, the helical coil antenna elements 110, 112 can correspond to a helical coil whose external diameter D (figure 3) between about 1.15 to 1.25 mm. More specifically, the outside diameter D can be 1.2 mm +/- 0.025 mm. The helical coil forming antenna elements 110, 112 can have a diameter d (figure 3) between about 0.152 to 0.254 mm. More specifically, the diameter d of the wire can be 0.203 mm +/- 0.0508 mm. The helix pitch of the helical spring forming antenna elements 110, 112 can vary from 7.35 mm to 8.03 mm for 10 turns. More specifically, during 10 turns, the propeller pitch can be 7.69 mm +/- 0.17 mm. With these measurements, in an exemplary configuration, the arms, 182, 186 and 184, 188 can differ in length by about 0.3675 mm and 0.4015 mm. More specifically, the arms, 182, 186 and 184, 188 can be different in length by 0.3845 mm +/- 0.0085 mm.
    [0035] Although the present theme has been described in detail with respect to the specific modalities of it, it will be appreciated that those skilled in the art, upon reaching an understanding of the above, can readily produce changes and variations of equivalents for such modalities. Thus, the scope of this disclosure is by way of example, rather than by way of limitation, and the disclosure of the subject does not prejudice the inclusion of such modifications, additions and / or variations for the present subject as would be readily apparent to a person skilled in the art.
    权利要求:
    Claims (11)
    [0001]
    1. RFID device for integration into a tire, comprising: a Printed Circuit Board (PCB) having upper and lower surfaces outlined by opposite end portions and opposite side portions; a plurality of conductive lines on the upper surface of said PCB; a pair of asymmetric arms extending from one end of said PCB forming a notch; a sheet-coated pathway piercing the PCB from the upper surface to the lower surface; a conductive trace element surrounding said path on the upper surface of said PCB, the trace element electrically coupled to the plurality of the conductive traces; and a helically wound antenna element, having a final portion positioned within said notch and in a plane defined by the upper surface of the PCB, characterized by the fact that said helically wound antenna element is wound with a pre-pitch -determined, in which said pair of asymmetric arms differs in length by half the predetermined step, and in which both of said pair of asymmetric arms extend so that each of said pair of asymmetric arm ends ends aligned with the closest access to said helically wound antenna element.
    [0002]
    2. Device according to claim 1, further characterized by the fact that it comprises a non-conductive elastomeric material surrounding said PCB and at least a portion of said antenna element, and filling said notch, whereby the synergism between the elastomeric material and the positioning of the antenna within the notch and the PCB plane provides a controlled voltage gradient for connecting the antenna to the PCB.
    [0003]
    3. Device according to claim 1, characterized by the fact that the antenna element comprises a helically wound conductor having an external diameter between about 1.15 and 1.25 mm.
    [0004]
    Device according to claim 3, characterized in that the antenna element comprises a helically wound conductor having an outside diameter of about 1.2 mm.
    [0005]
    5. Device according to claim 3, characterized by the fact that the helically wound conductor is wound with a single step between turns, the step ranging from about 0.735 mm to 0.803 mm per turn.
    [0006]
    6. Device according to claim 5, characterized by the fact that the helically wound conductor is wound with a single step between the turns of about 0.769 mm per revolution.
    [0007]
    7. Device according to claim 1, characterized by the fact that the length of the asymmetric arms differs by about 0.3675 mm to 0.4015 mm.
    [0008]
    8. Device according to claim 1, characterized by the fact that the length of the asymmetric arms differs by about 0.3845 mm.
    [0009]
    9. Device according to claim 1, further characterized by the fact that it comprises a second notch formed by the second pair of asymmetrical arms positioned at the opposite end of said PCB, a second plate coated with PCB perforations and a second antenna positioned within said second notch and in the plane defined by the upper surface of the PCB.
    [0010]
    10. Device according to claim 1, further characterized by the fact that it comprises a non-conductive elastomeric material surrounding said PCB and at least a portion of said antenna element, and filling said notch, whereby the synergism between the elastomeric material and the positioning of the antenna within the notch and the plane of the PCB provides a controlled voltage gradient for connecting the antenna to the PCB.
    [0011]
    Device according to claim 10, further characterized by the fact that it comprises a bonding agent for fixing said non-conductive elastomeric material to the antenna element and the PCB.
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    同族专利:
    公开号 | 公开日
    JP5604593B2|2014-10-08|
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    CN103068598B|2015-12-09|
    CN103068598A|2013-04-24|
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    引用文献:
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    EP1454770A1|2003-03-04|2004-09-08|Société de Technologie Michelin|Electronics device for a tire having an extensible antenna and a tire having such a device|
    US20050076982A1|2003-10-09|2005-04-14|Metcalf Arthur Richard|Post patch assembly for mounting devices in a tire interior|
    US7196617B2|2004-04-19|2007-03-27|Michelin Recherche Et Technique S.A.|Graduated stiffness for electrical connections in tires|
    US7674117B2|2004-04-19|2010-03-09|Michelin Recherche Et Technique S.A.|Strain-resistant electrical connection|
    US8138924B2|2005-03-09|2012-03-20|Michelin Recherche Et Technique|Robust mounting for RFID transponder antenna|
    JP2007049351A|2005-08-09|2007-02-22|Yokohama Rubber Co Ltd:The|Electronic tag for tire and pneumatic tire|
    FR2901422B1|2006-05-19|2011-07-29|Michelin Soc Tech|ELECTRONIC MODULE FOR INTEGRATING IN A TIRE, DEVICE COMPRISING SUCH A MODULE, PNEUMATIC COMPRISING SUCH A DEVICE AND METHOD FOR OBTAINING SUCH A DEVICE|
    JP5026618B2|2008-04-29|2012-09-12|ミシュランルシェルシュエテクニークソシエテアノニム|In-plane RFID antenna|
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    US9070069B2|2010-08-30|2015-06-30|Michelin Recherche Et Technique S.A.|Spring oriented RFID board|US9070069B2|2010-08-30|2015-06-30|Michelin Recherche Et Technique S.A.|Spring oriented RFID board|
    CN103336989B|2013-07-25|2016-08-10|章伟|A kind of RFID|
    FR3037200B1|2015-06-03|2017-05-26|Michelin & Cie|RADIOFREQUENCY TRANSPONDER FOR PNEUMATIC|
    US9821613B2|2015-07-20|2017-11-21|Bendix Commercial Vehicle Systems Llc|Transmitting device with antenna|
    FR3059604A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|PNEUMATIC ENVELOPE EQUIPPED WITH AN ELECTRONIC MEMBER|
    FR3059605A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|PNEUMATIC ENVELOPE EQUIPPED WITH AN ELECTRONIC MEMBER|
    FR3059592A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|METHOD FOR MANUFACTURING A PATCH EQUIPPED WITH A RADIOFREQUENCY AND PNEUMATIC TRANSPONDER COMPRISING SUCH A PATCH|
    FR3059607A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|RADIO FREQUENCY COMMUNICATION MODULE FOR TIRES|
    FR3059606A1|2016-12-05|2018-06-08|Compagnie Generale Des Etablissements Michelin|RADIO FREQUENCY COMMUNICATION MODULE FOR TIRES|
    FR3059603A1|2016-12-07|2018-06-08|Compagnie Generale Des Etablissements Michelin|PNEUMATIC ADAPTED FOR FLAT ROLLING EQUIPPED WITH AN ELECTRONIC MEMBER|
    EP3762243A1|2018-03-07|2021-01-13|Compagnie Generale Des Etablissements Michelin|Tyre provided with a radio frequency communication module|
    EP3768529A1|2018-03-20|2021-01-27|Compagnie Generale Des Etablissements Michelin|Heavy goods vehicle pneumatic tyre provided with a radiofrequency communication module|
    EP3768528A1|2018-03-22|2021-01-27|Compagnie Generale Des Etablissements Michelin|Heavy goods vehicle tyre equipped with a radiofrequency communication module|
    EP3793812A2|2018-05-17|2021-03-24|Compagnie Generale Des Etablissements Michelin|Method for producing a tire provided wth a radiofrequency communications module|
    WO2019220064A2|2018-05-17|2019-11-21|Compagnie Generale Des Etablissements Michelin|Tyre for a heavy goods vehicle, equipped with a radio-frequency communication module|
    CN109063808A|2018-07-10|2018-12-21|青岛海威物联科技有限公司|A kind of RFID electronic label and processing method|
    US10836222B2|2018-10-26|2020-11-17|Sensata Technologies, Inc.|Tire mounted sensors with controlled orientation and removal detection|
    FR3108402A1|2020-03-22|2021-09-24|Safran|Device for measuring an operating parameter of a tire|
    CN111428846A|2020-05-28|2020-07-17|青岛海威物联科技有限公司|RFID tag and processing method thereof|
    法律状态:
    2018-01-02| B25A| Requested transfer of rights approved|Owner name: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (FR |
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-07-16| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2020-03-03| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-06-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2010/047128|WO2012030321A1|2010-08-30|2010-08-30|Spring oriented rfid board|
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