[go: up one dir, main page]

WO2024177600A1 - Étiquette rfid pour un pneu ayant une antenne flexible - Google Patents

Étiquette rfid pour un pneu ayant une antenne flexible Download PDF

Info

Publication number
WO2024177600A1
WO2024177600A1 PCT/TR2024/050118 TR2024050118W WO2024177600A1 WO 2024177600 A1 WO2024177600 A1 WO 2024177600A1 TR 2024050118 W TR2024050118 W TR 2024050118W WO 2024177600 A1 WO2024177600 A1 WO 2024177600A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
electronic device
tire
fiber layer
core fiber
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.)
Ceased
Application number
PCT/TR2024/050118
Other languages
English (en)
Inventor
Mehmet Ilker YILMAZ
Hatice GOKDEMİR
Coskun Kazma
Ezgi TAMAN ONEN
Yu Cheng Lee
Martin Scattergood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SES RFID Solutions GmbH
Kordsa Teknik Tekstil AS
Original Assignee
SES RFID Solutions GmbH
Kordsa Teknik Tekstil AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from TR2023/002073 external-priority patent/TR2023002073A1/tr
Priority claimed from EP23158556.3A external-priority patent/EP4421680A1/fr
Application filed by SES RFID Solutions GmbH, Kordsa Teknik Tekstil AS filed Critical SES RFID Solutions GmbH
Publication of WO2024177600A1 publication Critical patent/WO2024177600A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2241—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in or for vehicle tyres

Definitions

  • the present invention relates to an electrical device having a flexible antenna structure for mounting onto and into tires. More specifically, the present invention relates to an RFID tag having flexible conductive yarn as antenna and a tire comprising such a RFID tag.
  • RFID radio-frequency identification
  • RFID tag includes an antenna and an RFID chip.
  • RFID devices may be read-only, write-only, or read-and-write devices.
  • RFID tags and other electrical devices may be mounted onto or into a tire using a tire mounting apparatus.
  • One of the problems associated with RFID tags is how to position and configure the antenna such that the data in the device is accurately transmitted to the information gathering device i.e. a RFID reader placed externally to the tire.
  • the issues related to the use of RFID tags in tires are: (i) positioning the antenna as close to the outside of the tire as possible so that transmission efficiency is improved, (ii) positioning the antenna away from the metal reinforcing cords that interfere with the signal propagation, (iii) providing a device that can withstand the cyclic stresses in the operating tire, (iv) mounting the device onto or into the tire without overhandling and damaging it, and (v) ensuring the adhesion between the antenna, typically a metallic element, to the rubber material to secure it in place.
  • US 7,102,499 discloses an electronic communication device for a tire having a radio device and an antenna intended to be attached to or embedded in a tire.
  • the antenna is spirally or helically shaped to absorb tensile and bending stress applied by the tire.
  • the antenna body may be a wire formed of spring steel, brass or zinc coated spring steel, or spring brass.
  • a coating of insulating material coats the radio device and antenna for mounting on or in, and operation in, a tire structure.
  • US 9,490,531 discloses an antenna for an electronic device in a tire including a core for integrating into a rubber compound for a tire.
  • the antenna further includes an electromagnetic-signal conduction layer, which is made of copper and coats the core, and a chemical isolation layer, which coats the conduction layer and is intended to chemically isolate the rubber compound from an object coated by the isolation layer.
  • WO 2022/171951 discloses a radiofrequency transceiver device comprising an electronic circuit comprising a chip and a first antenna electrically connected to the chip, a textile-core thread formed of a non-conductive material, and a second antenna formed of a textile element in an electrically conducting material and disposed in non-contiguous turns around and along the textilecore thread.
  • US 10,515,298 discloses an RFID transponder with a chip and an antenna attached to it for contactless communication, which also includes a plastic package containing these transponder components as integrated components.
  • the plastic package is utilized as a coil core on its outer surface, on which an external booster antenna having at least one coil winding is arranged.
  • the RFID transponder can be exposed to high mechanical stress and has enhanced durability due to the inductive coupling of the booster antenna and the elimination of external soldered joints.
  • the present invention provides an improvement on the art by providing an antenna coupling structure for integrating into an electronic device to improve signal strength, durability, and fatigue performance during the manufacturing of tires.
  • Said antenna coupling structure comprises a conductive yarn comprising a lightweight, flexible, and durable core fiber layer coated with a conductive metal coating.
  • Said conductive yarn has an increased RSSI signal due to its low electrical resistance.
  • Said antenna coupling is treated with an appropriate adhesive covering to be easily mountable onto a tire.
  • Figure 1 demonstrates a schematic view of an exemplary electrical device with an antenna.
  • Figure 2 demonstrates a schematic view of a conductive yarn.
  • FIG. 1 illustrates an exemplary electrical device (1).
  • Said electrical device (1) can be an identification or tracking device, such as one that may be used in manufacturing, distribution, and sales activities, or a monitoring device for measuring temperature, pressure, or other physical parameters in an operating tire.
  • said electrical device (1) is an RFID transponder comprising an RFID chip and an antenna in operable communication for wirelessly communicating with external equipment, such an RFID reader.
  • said electrical device (1) comprises a package (7) comprising a chip (not depicted), and a first antenna (not depicted) which is connected to the chip for contactless communication.
  • Said package (7) accommodates these transponder components as integrated components and may be able to accommodate larger microchips and longer coils for increased functional ranges.
  • Said package (7) forms a bobbin (2) on its outer surface.
  • An antenna coupling (3) having at least one coil winding (4) is arranged on the bobbin (2), wherein the coil winding (4) completely surrounds the integrated first antenna of the chip in order to form a backscatter propagation coupling.
  • the two ends (5 and 6) of the coil winding (4) form antenna wires of a dipole antenna for the UHF range.
  • Said package (7) may be made from an insulating material such as plastic or ceramic in order to mechanically protect and electrically insulate said chip and antenna.
  • an insulating material such as plastic or ceramic
  • the antenna coupling (3) of the invention can be used with any electrical device (1) comprising a chip and a first antenna.
  • the first antenna is a flat coil having a winding plane that can be taken for aligning the antenna coupling (3) in order to form an optimal electromagnetic coupling between the first antenna and the antenna coupling (3).
  • a coil-shaped spring antenna, helical antenna, plate-shaped antenna, and various types of rod-shaped antennas can be used as the antenna coupling (3).
  • said antenna coupling (3) is a helical antenna.
  • Said antenna coupling (3) is made from a conductive yarn (10) comprising a core fiber layer (11) coated with a conductive coating (12) as illustrated in Figure 2.
  • Said conductive yarn (10) being an essentially textile material ensures that it is lightweight and flexible, which makes it suitable for use as an antenna embedded in deformable objects, such as tires.
  • Said core fiber layer (11) is composed of at least one liquid crystal polymer (LCP) fiber, or at least one para-phenylene benzobisoxazole (PBO) fiber.
  • Said at least one liquid crystal polymer (LCP) fiber, or at least one para-phenylene benzobisoxazole (PBO) fiber maybe monofilament or multifilament fiber.
  • LCPs are a class of material that have complex chemistries, various structures and special properties that are used in a wide range of fields.
  • LCPs are composed of rod-shaped molecular units, called mesogens, that form liquid crystalline phases. LCPs can self-organize at the molecular level based on temperature, concentration, or light, making them highly tunable. Further, LCPs have dielectric properties that make them an excellent materials for use in antennas.
  • LCPs used in the invention may be aromatic liquid crystal polyesters, polyimide, and polyester amide.
  • said core fiber layer (11) comprises at least one liquid crystal polyester fiber, such as those that can be commercially purchased under the name VectranTM.
  • said core fiber layer (11) is composed of 19 to 80 LCP filaments. In a more preferred embodiment, said core fiber layer (11) is composed of 20, 40 or 80 LCP filaments.
  • said core fiber layer (11) is composed of PBO fibers.
  • said core fiber layer (11) is composed of PBO fibers which can be commercially purchased under the name ZylonTM.
  • said core fiber layer (11) is composed of 150 to 400 PBO filaments but more preferably 150-350 PBO filaments
  • said core fiber layer (11) is composed of 166 or 322 PBO filaments.
  • Said LCP and PBO fibers have a high elastic modulus and flexibility. They have vibration dampening properties and have high resistance to cutting and fracture failure. In addition, the have high chemical resistance, high creep resistance and low moisture absorption rates. Said LCP and PBO fibers are obtainable by melt extrusion.
  • Said conductive coating (12) is made of an electrically conductive material which may be a metal, such as copper, silver, and nickel, or alloys thereof.
  • conductive coating (12) is made of a metal.
  • said conductive coating (12) has a thickness of from about 1 pm to about 10 pm.
  • said conductive yarn (10) has an electrical resistivity between 0.3 and 0.8 ohm per cm. In a preferred embodiment of the invention, said conductive yarn (10) has a diameter between 200-300 pm. In a most preferred embodiment of the invention, said conductive yarn (10) has a diameter of 250 pm.
  • Said conductive yarn (10) may be produced using any method of metal coating known in the art, such as physical vapor deposition, thermal spray, chemical vapor deposition (CVD), sputter deposition, or electroless plating.
  • said conductive yarn (10) is produced by electroless plating comprising the steps of (a) surface modification by contacting the fiber with alkaline solution, (b) catalyzing by seeding a catalyst onto the core fiber layer (11) surface using an acid/catalyst solution, (c) reduction by immersion for a suitable period of time in a separate reducing solution, (d) electroless plating of metal which is an autocatalytic deposition process that places metal onto objects that are immersed in a plating solution, and (e) optionally, electroplating metal as described in US 2012/164343, US 2012/171485, US 8,501,278, US 9,324,472, US 2012/021218 and US 8,137,752.
  • conductive yarn (10) further comprises a wrapped layer.
  • Said wrapped layer comprises polyamide fibers contiguously wound in turns around said conductive yarn (10). The wrapped layer provides insulation and prevents short circuiting when said conductive yarn (10) is used as antenna coupling (3).
  • Said antenna coupling (3) is treated with a tackifying solution in order to improve the adhesion of the antenna coupling (3) to the rubber component of the tire.
  • antenna coupling (3) is treated by dipping into a resorcinol formaldehyde latex (RFL) solution, as commonly used in the art.
  • RF-free resorcinol formaldehyde-free compositions, such as compositions containing acrylic resins or natural latex, can be used.
  • a rosin ester and/or rosin ester tackifier may be added to the dipping solution. Solutions may be water-based or organic solved based.
  • Organic solvents are chosen from a group containing toluene, hydrocarbon solvents, xylene, ethyl acetate, alcohols, ethers, and mixtures thereof.
  • the antenna coupling (3) coated by the tackifying solution is then dried at 200-200°C.
  • any method known in the art for improving the adhesion of components to rubber may be used in this application such that the antenna coupling (3) remains intact and adhered to or within the tire through the lifetime of the tire. After treatment, said antenna coupling (3) is attached to the electrical device (1).
  • the electrical device (1) can be mounted directly onto uncured rubber of a tire before the curing process so that it is embedded among the layers comprising the final tire product.
  • the tire types which can be equipped with the electrical device (1) include but are not limited to, bias tires, belted bias tires, radial tires, solid tires, semi-pneumatic tires, pneumatic tires, and airless tires.
  • all tires include an outer tread, a bead which contacts a rim upon installation of the tire, and sidewalls that extend between the tread and bead.
  • the present invention is advantageous in that it allows exact positioning of the electrical device (1) on the desired location and in a desired alignment on the tire without overhandling the electrical device (1) and causing damage.
  • the electrical device (1) is placed in positions on the tire that have minimum tensile and compressive strains during driving conditions.
  • the electrical device (1) is mounted between the carcass layer and the outer rubber layer at upper, middle, or lower sidewall area in the circumferential direction of tire. Good readability of the tag is obtained in these positions due to the thin gauge and the distance from the metallic components of the tire.
  • the electrical device (1) is mounted onto the bead area of the tire, including apex rubber and bead ring.
  • the electrical device (1) may be mounted on the apex rubber or in the apex rubber in cases where the apex rubber is composed of two or more parts. These positions are advantageous due to reduced deformation in horizontal direction in driving conditions.
  • the electrical device (1) is mounted between the apex rubber and bead ring apex, wherein the electrical device (1) is mounted first on the upper side of the rubberized bead ring and the apex rubber is mounted onto the bead ring and the tag (1) This position is advantageous due to reduced deformation in all directions in driving conditions.
  • electrical device (1) After electrical device (1) is mounted onto the uncured rubber, other elements of the tire, such as tire cords, are be added onto the uncured rubber, and tire is cured in order to get the final tire product having an electrical device (1), such as an RFID transponder. Thereafter, the tire can be identified by the use of an RFID reader, which allows for tracking the tire in a manufacturing or production system, monitoring the location of the tire, and performing inventory operations.
  • An RFID reader which allows for tracking the tire in a manufacturing or production system, monitoring the location of the tire, and performing inventory operations.
  • a single tire may include one or several electrical devices (1) described herein. For example, if it is desired to monitor physical parameters at different locations in the tire or to monitor different parameters. The location for the device partially depends on its function.
  • the electrical device (1) of the present invention can be used with other rubber or rubber-based articles in addition to tires.
  • Other rubber-based articles include, but are not limited to, suspension components, cushions, shoe soles, hoses, hockey pucks, conveyor belts, musical mouth pieces and bowling balls.
  • the present invention proposes an electronic device (1) comprising a chip and a first antenna and an antenna coupling (3) aligned to form an electromagnetic coupling between the first antenna and the antenna coupling (3), wherein said antenna coupling (3) comprises a core fiber layer (11) coated with an electrically conductive coating (12); and said core fiber layer (11) comprises liquid crystal polymer filaments, or para-phenylene benzobisoxazole filaments.
  • said core fiber layer (11) comprises 19 to 80 liquid crystal polymer filaments.
  • said core fiber layer (11) is composed of 20, 40 or 80 liquid crystal polymer filaments.
  • said core fiber layer (11) comprises 150 to 400 para-phenylene benzobisoxazole filaments.
  • said core fiber layer (11) is composed of 166 or 322 para-phenylene benzobisoxazole filaments.
  • said conductive coating (12) is chosen from a group containing copper, silver, nickel, and alloys thereof.
  • said conductive yarn (10) further comprises a layer of polyamide fibers contiguously wound in turns around said conductive yarn (10).
  • said conductive yarn (10) has an electrical resistivity between 0.3 and 0.8 ohm per cm.
  • said antenna coupling (3) is coated with a tackifying solution.
  • said tackifying solution contains at least one material selected from the group comprised of resorcinol formaldehyde latex solution, acrylic resin solution, rosin ester solution, natural latex solution, and combinations thereof.
  • said antenna coupling (3) is in the form of a coil-shaped spring antenna, helical antenna, plate-shaped antenna, or rod-shaped antenna.
  • said conductive yarn (10) has a diameter between 200 and 300 pm.
  • the present invention further proposes a radio-frequency identification tag comprising an electronic device (1), said electronic device (1) further comprising a package (7) wherein said chip and an antenna are integrated and wherein said package forms a bobbin (2) on its outer surface, on which said antenna coupling (3) having at least one coil winding is arranged.
  • the present invention further proposes a tire having an electronic device (1).

Landscapes

  • Support Of Aerials (AREA)

Abstract

La présente invention concerne un dispositif électrique ayant une structure d'antenne flexible destinée à être montée sur et dans des pneus. Ladite structure de couplage d'antenne comprend un fil conducteur comprenant une couche de fibres centrale légère, flexible et durable revêtue d'un revêtement métallique conducteur. Ledit couplage d'antenne est traité avec un revêtement adhésif approprié pour être facilement montable sur un pneu. La présente invention permet une amélioration de l'état de la technique en fournissant une structure de couplage d'antenne destinée à être intégrée dans un dispositif électronique pour améliorer les performances de puissance du signal, de durabilité et de fatigue pendant la fabrication de pneus.
PCT/TR2024/050118 2023-02-24 2024-02-15 Étiquette rfid pour un pneu ayant une antenne flexible Ceased WO2024177600A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TR2023/002073 TR2023002073A1 (tr) 2023-02-24 Bi̇r lasti̇ğe yöneli̇k esnek bi̇r antene sahi̇p rfid eti̇keti̇
EP23158556.3 2023-02-24
TR2023002073 2023-02-24
EP23158556.3A EP4421680A1 (fr) 2023-02-24 2023-02-24 Étiquette rfid pour un pneu ayant une antenne flexible

Publications (1)

Publication Number Publication Date
WO2024177600A1 true WO2024177600A1 (fr) 2024-08-29

Family

ID=92501260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2024/050118 Ceased WO2024177600A1 (fr) 2023-02-24 2024-02-15 Étiquette rfid pour un pneu ayant une antenne flexible

Country Status (1)

Country Link
WO (1) WO2024177600A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12475349B2 (en) * 2021-02-15 2025-11-18 Primo1D Radiofrequency transceiver device and method for manufacturing same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017130956A1 (fr) * 2016-01-25 2017-08-03 トッパン・フォームズ株式会社 Pneu dans lequel est incorporée une étiquette rfid
WO2021239645A1 (fr) * 2020-05-27 2021-12-02 Bridgestone Europe Nv/Sa Dispositif de capteur d'identification à fréquence radio amélioré avec antenne du type plaque pour pneus
JP2022104304A (ja) * 2020-12-28 2022-07-08 株式会社フジックス 繊維製アンテナを用いたｒｆｉｄリーダライタ携帯端末

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017130956A1 (fr) * 2016-01-25 2017-08-03 トッパン・フォームズ株式会社 Pneu dans lequel est incorporée une étiquette rfid
WO2021239645A1 (fr) * 2020-05-27 2021-12-02 Bridgestone Europe Nv/Sa Dispositif de capteur d'identification à fréquence radio amélioré avec antenne du type plaque pour pneus
JP2022104304A (ja) * 2020-12-28 2022-07-08 株式会社フジックス 繊維製アンテナを用いたｒｆｉｄリーダライタ携帯端末

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12475349B2 (en) * 2021-02-15 2025-11-18 Primo1D Radiofrequency transceiver device and method for manufacturing same

Similar Documents

Publication Publication Date Title
US7102499B2 (en) Electronic device for a tire having an extensible antenna
JP5301149B2 (ja) 電子装置用のアンテナ構造とその製造方法
EP1516502B1 (fr) Procede permettant d'incorporer une antenne radiofrequence dans un pneumatique
CN110072713B (zh) 配备有电子构件的充气轮胎
US7151495B2 (en) Transponder configuration, tire including a transponder, and method of producing a tire having a transponder
US20040159383A1 (en) Method for embedding a radio frequency antenna in a tire, and an antenna for embedding in a tire
CN110035913B (zh) 配备有电子构件的充气轮胎
CN113439033A (zh) 改进的轮胎用rfid装置
EP4202764B1 (fr) Étiquette rfid
CN114829159B (zh) 具有射频转发器的轮胎
EP4421680A1 (fr) Étiquette rfid pour un pneu ayant une antenne flexible
WO2024177600A1 (fr) Étiquette rfid pour un pneu ayant une antenne flexible
US20250307590A1 (en) Contactlessly activated rfid tag for tire
US7250914B2 (en) Composite antenna for a tire
CN110998967B (zh) 用于轮胎的电子构件的天线
EP4303761B1 (fr) Étiquette rfid à activation sans contact pour un pneu
TR2023002073A1 (tr) Bi̇r lasti̇ğe yöneli̇k esnek bi̇r antene sahi̇p rfid eti̇keti̇
TR2022011288A1 (tr) Bi̇r lasti̇ğe yöneli̇k temassiz olarak etki̇nleşen bi̇r rfid eti̇keti̇
EP1454771B1 (fr) Dispositif électronique pour un pneumatique avec une antenne elastique et un pneumatique comportant ce dispositif
EP4300354B1 (fr) Pack de montage d'un dispositif électronique sur un pneu
KR20250166923A (ko) 향상된 특성을 가진 안테나를 갖춘 rfid 태그
WO2024005752A1 (fr) Bloc permettant de monter un dispositif électronique sur un pneu
JPWO2020075732A1 (ja) タイヤに埋め込まれるｒｆタグおよびｒｆタグ内蔵タイヤ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24760715

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE