Radio frequency tire label without antenna wing, packaging structure and mounting method

Abstract

The invention discloses a radio frequency tire label without an antenna wing, a packaging structure and an installation method, and relates to the technical field of radio frequency labels, the radio frequency tire label comprises a high-temperature-resistant radio frequency resonant cavity assembly and rubber resin, the high-temperature-resistant radio frequency resonant cavity assembly comprises a bottom film, an aluminum foil loop antenna and a radio frequency chip, and the rubber resin is coated on the surface of the high-temperature-resistant radio frequency resonant cavity assembly and covers the aluminum foil loop antenna and the radio frequency chip. A plurality of radio frequency tire labels without antenna wings are continuously arranged in a single row to form a strip-shaped structure, and the strip-shaped structure is rolled into a disc. The radio frequency tire label without the antenna wing can be mounted on the inner side of a finished tire in a manual and automatic mounting manner, and can also be mounted in the tire at a tire rubber coating station. The device can be applied to a finished tire rubber coating vulcanization process, the cost is low, the labeling efficiency is high, the traceability of the tire can be realized, and the rights and interests of consumers are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency tags. Specifically, it relates to a radio frequency tire tag without antenna fins, a packaging structure and an installation method thereof. Background Art

[0002] The most effective method for identifying and tracing the information of automobile tires is to install radio frequency tags on the tires. Traditional radio frequency tire tags have various structural types, mainly including: Type A - "copper wire spiral antenna fin + PCB radio frequency resonator type" radio frequency tire tag, Type B - "chemically etched aluminum foil antenna fin type" radio frequency tire tag. However, traditional radio frequency tire tags have many defects.

[0003] 1. Structure and defects of Type A - "copper wire spiral antenna fin + PCB radio frequency resonator type" radio frequency tire tag

[0004] This type of radio frequency tire tag is formed by welding copper wire antenna fins on a PCB double-sided board radio frequency resonator, and mainly consists of four parts: a tire tag bottom layer made of rubber skin material, a PCB board radio frequency resonator assembly, a copper wire bent antenna fin, and a rubber layer with a pasting function.

[0005] During the processing: The double-sided copper foil of the PCB board is made into upper and lower annular copper foils by chemical etching process, and becomes a radio frequency resonator through the PCB through-hole short-circuit process; a radio frequency chip is installed at the end point of the resonator to become a resonator assembly, and two copper wire bent antennas are welded to two pads on the outer edge of the resonator; the resonator assembly is bonded to the rubbery tire tag bottom layer; then a rubber layer for pasting with the rubber tire is attached on it. In this structure, the vibration or air pressure change of the tire does not affect the radio frequency function of the copper wire antenna fin. A special rubber layer with a pasting function is coated on the surface of the copper wire antenna radio frequency tag to facilitate pasting on the inner wall of the tire.

[0006] During the installation process, the tag is placed at a specified position inside the tire, and then heated and pressurized on its surface. After maintaining the pressure for a period of time, the radio frequency tire tag is bonded to the inner side of the tire.

[0007] The defects of this structure include:

[0008] (1) The diameter of the copper wire bent antenna fin is 1.25 mm after bending, the tag thickness is 1.3 mm - 2.8 mm, and the weight is 4 g - 5.5 g, which affects the dynamic balance of the tire.

[0009] (2) The tag length is greater than 80 mm and the area is large, and the vibration during vehicle driving will affect the bonding stability between the tag and the tire.

[0010] (3) The time taken to install the tag inside the tire is long, which is very inconvenient and has low efficiency.

[0011] (4) The process is complex, the production efficiency is low, and thus the cost is extremely high.

[0012] (5) Since the label thickness is greater than 1 mm, when installing the tire label in the tire vulcanization process, bumps and rubber delamination are likely to occur, affecting the quality and driving safety of the tire.

[0013] (6) Since it is single-label packaged, the technology and investment difficulty for automatic installation in the tire are extremely high, and it cannot match the automatic tire production line, so it cannot be widely promoted and applied in large quantities.

[0014] 2. Structure and defects of the B-type - "chemically etched aluminum foil antenna fin type" radio frequency tire label

[0015] This type of radio frequency tire label forms the structure of the radio frequency tire label by chemically etching the antenna fins of PET aluminum foil, and its length can be shortened to 50 mm. During the installation process: a rubber layer is laminated on the top surface of the radio frequency label, and a special rubber layer with adhesive function is laminated on the bottom surface of the radio frequency label.

[0016] The defects of this structure include:

[0017] (1) The length of the chemically etched aluminum foil antenna is greater than 40 mm, and the aluminum foil antenna fin does not have the telescopic function of the copper wire bent antenna fin. Therefore, the vibration during vehicle driving has a great impact on the stability of the tire label.

[0018] (2) The thickness of the radio frequency tire label is greater than 1 mm and the weight is greater than 1 g, which still affects the dynamic balance of the tire.

[0019] (3) When installing the radio frequency tire label on the tire, heating and pressurization take some time, and the efficiency is not high.

[0020] (4) The manufacturing process of the radio frequency tire label is complex and the production cost is high. Although the cost is lower than that of the copper wire bent antenna fin tire label, it is still an important obstacle to promotion and application.

[0021] (5) Since the thickness of the radio frequency tire label is greater than 1 mm, when installing the label in the tire vulcanization process, bumps are likely to appear and the rubber is prone to delamination, affecting the quality and driving safety of the tire.

[0022] (6) Since the upper temperature limit of the PET aluminum foil antenna is 175 °C, and the temperature of tire rubber vulcanization may be higher than 180 °C, the PET aluminum foil chemically etched radio frequency antenna label is not suitable for installation in the tire vulcanization process.

[0023] The above defects are worthy of solution. Summary of the Invention

[0024] In order to overcome the deficiencies of the existing technology, the present invention provides a radio frequency tire label, packaging structure and installation method without antenna fins.

[0025] The technical solution of the present invention is as follows:

[0026] A radio frequency tire tag without antenna fins, comprising a high-temperature resistant radio frequency resonant cavity assembly and a rubber-type resin: The high-temperature resistant radio frequency resonant cavity assembly includes a bottom film, an aluminum foil loop antenna, and a radio frequency chip. The aluminum foil loop antenna is located on the bottom film, and the radio frequency chip is coupled to the aluminum foil loop antenna; the rubber-type resin is coated on the surface of the high-temperature resistant radio frequency resonant cavity assembly and covers the aluminum foil loop antenna and the radio frequency chip. When installing the radio frequency tire tag in the tire rubber vulcanization process, a through hole is provided in the middle of the radio frequency tire tag without antenna fins for passing through the rubber in the tire rubber vulcanization process to connect the rubber on the upper and lower sides together.

[0027] The resonant frequency after coupling the radio frequency chip and the aluminum foil loop antenna is 860 MHz to 940 MHz. The thickness of the high-temperature resistant radio frequency resonant cavity assembly is less than 0.25 mm. Among them: the bottom film is a polyimide film with a thickness of 0.05 mm and an outer edge size less than 20 mm × 20 mm; the size of the radio frequency chip is less than 0.4 mm × 0.4 mm and its thickness is less than 0.15 mm.

[0028] The coating thickness of the rubber-type resin is greater than 0.3 mm: the coating thickness of the radio frequency tire tag installed on the finished tire is 0.4 mm to 0.5 mm, and the coating thickness of the radio frequency tire tag installed in the tire rubber vulcanization process is 0.3 mm.

[0029] The thickness of the radio frequency tire tag installed on the inner side of the finished tire is less than 0.7 mm and its weight is 22 mg. The thickness of the radio frequency tire tag installed in the tire rubber vulcanization process is 0.5 mm and its weight is less than 20 mg.

[0030] On the other hand, a packaging structure of a radio frequency tire tag, characterized in that it includes a plurality of the above-mentioned radio frequency tire tags without antenna fins. A plurality of radio frequency tire tags without antenna fins are arranged continuously in a single row to form a strip structure, and the strip structure is wound into a disk. The capacity of each disk is greater than 20,000 tire tags, meeting the requirements of the label automatic installation machine.

[0031] The present invention also provides an installation method of a radio frequency tire tag, characterized in that the above-mentioned radio frequency tire tag without antenna fins is manually installed on the inner side of the tire sidewall. During the installation process:

[0032] Cut the RF tire label without antenna fins from the tire label roll tape, place the rubber resin surface of the RF tire label upward on the label suction cup of the handheld labeling machine; heat the handheld labeling machine to make the rubber resin on the surface of the RF tire label become a colloid; align the label suction cup of the handheld labeling machine with the labeling position and press down, disconnect the heating power supply, so that the label suction cup loses suction, and the RF tire label is pasted on the tire side by the colloidal rubber resin; after putting away the labeling machine, the rubber resin cures to make the RF tire label fixedly connected to the tire side; the numerical control center writes or reads tire information to / from the chip of the RF tire label through the RF reading and writing device.

[0033] The present invention also provides a second installation method for the RF tire label. The above-mentioned RF tire label without antenna fins is installed on the inner side of the tire side of the tire through an automatic labeling device. During the installation process:

[0034] The labeling head heating suction cup of the automatic labeling device adsorbs the RF tire label and heats it, so that the rubber resin on the surface of the RF tire label becomes a colloid; after the tire arrives, the suction cup manipulator controller of the automatic labeling device controls the labeling head heating suction cup to align with the labeling position and apply pressure, so that the RF tire label is pasted on the tire side wall, and the labeling head heating suction cup is lifted; the numerical control center writes or reads tire information to / from the chip of the RF tire label through the RF label information reader / writer of the automatic labeling device.

[0035] The present invention also provides a third installation method for the RF tire label. The above-mentioned RF tire label without antenna fins is installed inside the tire side of the tire at the tire rubber coating station. During the installation process:

[0036] The label labeling head heating suction cup of the RF tire label installation machine adsorbs the RF tire label with a through hole in the middle and heats it, so that the rubber resin on the surface of the RF tire label becomes a colloid; the labeling head drive assembly of the RF tire label installation machine drives the label labeling head heating suction cup and the RF tire label to align with the labeling position and press down, and the RF tire label is bonded to the uncured rubber through the rubber resin glue; the rubber coating process continues to wrap the RF tire label in the uncured rubber, and the rubber coating process heats and pressurizes, and the rubber is connected together after passing through the through hole, so that the RF tire label is consolidated in the tire side of the vulcanized tire.

[0037] According to the present invention of the above solution, its beneficial effects are as follows.

[0038] The RF tire label of the present invention can be wound into a strip, can be applied to the installation of RF labels for finished tires, and can also be applied to the installation in the tire rubber coating and vulcanization process, with a wider application range; the present invention can be stably installed on the tire side, with good installation stability, does not affect the RF performance of the RF tire label, and does not affect the center of gravity of the tire during the driving of the vehicle, ensuring the safety of vehicle driving.

[0039] The radio frequency tire tag of the present invention has a low cost and can achieve automatic labeling, saving labor and improving the labeling efficiency.

[0040] The radio frequency tire tag of the present invention realizes the traceability of tires, realizes the tracking in the processes of tire manufacturing, quality inspection, warehousing and transportation, etc., guarantees the rights and interests of consumers, provides information for identifying vehicles for highways, traffic management, and parking lots, and helps to promote the establishment of an Internet of Vehicles. Description of the Drawings

[0041] Figure 1a It is a schematic structural diagram of a radio frequency tire tag without antenna fins in Embodiment 1 of the present invention;

[0042] Figure 1b is Figure 1a the top view sectional view of;

[0043] Figure 2a It is a schematic structural diagram of a radio frequency tire tag without antenna fins in Embodiment 2 of the present invention;

[0044] Figure 2b is Figure 2a the side sectional view of;

[0045] Figure 3a It is a schematic diagram of the label packaging structure corresponding to Embodiment 1 of the present invention;

[0046] Figure 3b is Figure 3a the side sectional view of;

[0047] Figure 4a It is a schematic structural diagram of a traditional radio frequency tire tag;

[0048] Figure 4b is Figure 4a the top view sectional view of;

[0049] Figure 5a It is a schematic diagram of installing a traditional radio frequency tire tag on the inner sidewall of a tire;

[0050] Figure 5b is Figure 5a the side sectional view of;

[0051] Figure 5c is Figure 5a the top view sectional view of;

[0052] Figure 6a It is a schematic diagram of installing Embodiment 1 of the present invention on the inner sidewall of a finished tire;

[0053] Figure 6b is Figure 6a the enlarged view of part C in;

[0054] Figure 7a Schematic diagram of the installation of the second embodiment of the present invention in the tire rubber vulcanization process;

[0055] Figure 7b is Figure 7a An enlarged view of part E in

[0056] In the figure, each reference numeral is as follows:

[0057] 01, tread crown; 02, tire sidewall; 03, bead;

[0058] 1, double-sided copper-clad PCB board; 1-1, back copper foil; 1-2, front copper foil; 2-1, left copper wire antenna fin; 2-2, right copper wire antenna fin; 3, welding point; 4, epoxy resin encapsulated RF chip and micro RF resonator; 5, adhesive surface rubber layer; 6, surface protection rubber layer;

[0059] 11, RF chip; 12, aluminum foil loop antenna; 13, bottom film; 14, rubber-type resin; 15, through hole. Specific embodiments

[0060] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0061] As Figures 4a to 5c shown, the traditional type A - "copper wire spiral antenna fin + PCB RF resonator type" RF tire tag includes a double-sided copper-clad PCB board 1 and an epoxy resin encapsulated RF chip and micro RF resonator 4 located on the front side of the double-sided copper-clad PCB board 1. The front side of the double-sided copper-clad PCB board 1 is provided with a front copper foil 1-2, and its back side is provided with a back copper foil 1-1. The two front copper foils 1-2 are respectively connected to the left copper wire antenna fin 2-1 and the right copper wire antenna fin 2-2 through welding points 3.

[0062] The entire RF tire tag is installed in the tire through the adhesive surface rubber layer 5 and the surface protection rubber layer 6. Specifically, the tire structure includes a tread crown 01, a tire sidewall 02, and a bead 03, and the RF tire tag can be installed at the position of the tire sidewall 02.

[0063] The double-sided copper-clad PCB board 1 in this structure is made by chemical etching process and becomes a RF resonator through the PCB through-hole short-circuit process. The structure manufacturing process is complex and the manufacturing production efficiency is low; in addition, the overall thickness of the tag is large and it is not suitable for the production of the rubber coating vulcanization process; the sizes and weights of the left and right copper wire antenna fins are large. On the one hand, it affects the driving stability of the vehicle, and on the other hand, it is easy to separate from the tire after being bent, and the structural stability is poor.

[0064] To solve the defects of the traditional RF tire tag, the present invention provides a RF tire tag without antenna fins, as Figures 1a to 3b ,Figures 6a to 7b The radio frequency tire tag without antenna wings comprises a high temperature resistant radio frequency resonant cavity assembly and a rubber type resin, wherein the thickness of the high temperature resistant radio frequency resonant cavity assembly is less than 0.25 mm, and the coating thickness of the rubber type resin is greater than 0.3 mm.

[0065] The high temperature resistant RF resonant cavity assembly includes a bottom film 13, an aluminum foil loop antenna 12, and a RF chip 11. The aluminum foil loop antenna 12 is located on the bottom film 13, and the RF chip 11 is coupled and connected to the aluminum foil loop antenna 12. There is no other antenna structure such as a copper wire antenna on the periphery of the high temperature resistant RF resonant cavity assembly, which greatly reduces the external dimensions of the RF resonant cavity.

[0066] The base film 13 is a transparent polyimide film with a thickness of 0.05 mm and an outer dimension of less than 20 mm × 20 mm. It can withstand temperatures above 220°C. On the one hand, it can protect the RF chip 11 and the aluminum foil ring antenna 12. On the other hand, it can be suitable for installation in finished tires or tire rubber vulcanization processes.

[0067] The aluminum foil loop antenna 12 can be square, circular or other shapes, and the thickness of the aluminum foil loop antenna 12 is 0.01mm. The size of the RF chip 11 is less than 0.4mm×0.4mm, and its thickness is less than 0.15mm. It is fixed to the aluminum foil loop antenna 12 by a high temperature resistant conductive resin. The resonant frequency after coupling the RF chip 11 and the aluminum foil loop antenna 12 is 860MHz~940MHz. The inductance parameter of the aluminum foil loop antenna 12 is very important, which is related to the recognition sensitivity of the RF tire tag. In addition to the influence of the technical parameters of the UHF RF chip, the scene influence of the steel wire rubber tire is also considered (the rubber of the tire is added with carbon powder and has conductivity, and the steel wire in the tire is an excellent conductor, which becomes an equivalent RF antenna wing attached to the RF resonant cavity assembly, increasing the reading distance of the RF resonant cavity assembly installed on the tire). These factors are combined to design the pattern of the aluminum foil loop antenna to ensure that good RF reading sensitivity is obtained when installed in the tire.

[0068] The rubber-type resin 14 is coated on the surface of the high-temperature resistant RF resonant cavity assembly and covers the aluminum foil loop antenna 12 and the RF chip 11. The rubber-type resin 14 has excellent affinity with tire rubber. Under normal pressure, it turns into a colloid when heated to 170°C and solidifies when the temperature drops below 120°C. Therefore, the rubber-type resin is heated to form a colloid and can be coated on the surface of the high-temperature resistant RF resonant cavity assembly.

[0069] The radio frequency tire tag without antenna wings in the present invention can be directly installed on the finished tire, or directly installed inside the tire during the tire rubber vulcanization process, so that it forms an integrated structure with the tire:

[0070] (1) The RF tire tag without antenna fins is directly installed on the finished tire

[0071] The thickness of the RF tire tag without antenna fins installed on the inner side of the finished tire is less than 0.7 mm, and its weight is 22 mg.

[0072] (2) The RF tire tag without antenna fins is directly installed inside the tire during the tire rubber vulcanization process

[0073] The thickness of the RF tire tag without antenna fins installed during the tire rubber vulcanization process is 0.5 mm, and its weight is less than 20 mg. In this case, a through hole 15 can also be provided in the middle of the RF tire tag without antenna fins to penetrate through the rubber during the tire rubber vulcanization process, so that the rubber on the upper and lower sides is connected together. Specifically: during the tire rubber vulcanization process, there is rubber on both the upper and lower sides of the tag, and the upper and lower layers of rubber at the 7 mm - 10 mm through hole 15 of the tag will be combined into one body, wrapping the RF tire tag without antenna fins in the rubber, and the tire RF tag obtains stability.

[0074] Preferably, the aperture of the through hole is 7 mm - 10 mm. On the one hand, it can minimize the weight of the entire RF tire tag as much as possible to ensure the smooth connection of the upper and lower layers of rubber. On the other hand, it can fully ensure the structural strength of the RF tire tag.

[0075] Such as Figure 3a 、 Figure 3b As shown, the present invention also provides a packaging structure for the RF tire tag, which can integrate several RF tire tags without antenna fins together, not only saving the space occupied by the RF tire tags without antenna fins, but also applying the RF tire tags without antenna fins to the automated production line.

[0076] The packaging structure of the RF tire tag includes several RF tire tags without antenna fins. The several RF tire tags without antenna fins are arranged continuously in a single row to form a strip structure, and the strip structure is wound into a disk. In the present invention, the gap of the transparent identification bit between two adjacent RF tire tags without antenna fins is 3 mm, and the capacity of each disk is more than 20,000 tire tags, meeting the requirements of the label automatic installation machine.

[0077] The RF tire tag without antenna fins in the present invention can be very conveniently and quickly installed on the tire. Specifically, the present invention provides an installation method for the RF tire tag, which includes two situations: the RF tire tag without antenna fins is directly installed on the finished tire, and the RF tire tag without antenna fins is directly installed inside the tire during the tire rubber vulcanization process.

[0078] 1. The RF tire tag without antenna fins is directly installed on the finished tire

[0079] In this case, the RF tire label without antenna fins can be operated by manual installation or automatically labeled through a transmission line.

[0080] (1) Manual installation

[0081] The RF tire label without antenna fins is manually installed on the inner side of the tire sidewall by a handheld labeling machine with a heated suction cup, as Figure 6a 、 Figure 6b shown. During the installation process:

[0082] ① Cut the RF tire label without antenna fins from the tire label roll tape, making the rubber resin surface of the RF tire label face upward and placing it on the label suction cup of the handheld labeling machine.

[0083] ② The handheld labeling machine heats up, and the suction cup part automatically warms up and maintains a constant temperature of 170 °C, making the rubber resin on the surface of the RF tire label become a colloid with adhesive function.

[0084] ③ Manually hold the handheld labeling machine and align the label suction cup with the labeling position, then press down; at this time, disconnect the heating power supply, so that the label suction cup loses suction, and the RF tire label adheres to the tire sidewall by the colloidal rubber resin; after 1 s, put away the labeling machine, and the rubber resin cools down to below 120 °C, and the rubber resin solidifies to make the RF tire label fixedly connected to the tire sidewall.

[0085] ④ The numerical control center writes or reads tire information to / from the chip of the RF tire label through the RF reading and writing device, including but not limited to the brand, model, serial number, production date, shelf life, etc. of the tire.

[0086] (2) Automatic labeling on the tire finished product transmission line

[0087] The RF tire label without antenna fins is installed on the inner side of the tire sidewall by an automatic labeling device, as Figure 6a 、 Figure 6b shown. Automatic labeling is realized relying on the automatic labeling device. The basic structure of the automatic labeling device includes a label unwinding component, an automatic identification and cutting component, a labeling head heating suction cup, a suction cup manipulator controller, an RF label information writing component connected to the data center, etc. During the installation process:

[0088] ① When the tire has not reached the labeling position, the labeling head heating suction cup adsorbs the RF tire label and heats it up, making the rubber resin on the surface of the RF tire label become a colloid.

[0089] ② After the tire arrives, the tire transmission line automatically stops moving forward. The suction cup manipulator controller controls the labeling head heating suction cup to align with the labeling position, and after pressing, pastes the RF tire label on the tire sidewall; after 0.5 s, lift the labeling head heating suction cup and reset it.

[0090] ③ Activate the RF tag information writing component. Under the control of the numerical control center, the RF tag information reader / writer writes or reads tire information (such as tire brand, model, serial number, production date, shelf life, etc.) to / from the chip of the RF tire tag.

[0091] ④ Start the tire transmission line, send the tire out of the labeling position, and complete the labeling.

[0092] The instruction for the labeling head to return to its original position activates the label unwinding and automatic identification and cutting device, places the next RF tire tag on the heating suction cup of the labeling head, and waits for the next tire to enter the labeling position for automatic labeling.

[0093] 2. The RF tire tag without antenna fins is directly installed inside the tire during the tire rubber vulcanization process.

[0094] The RF tire tag without antenna fins is installed inside the tire side at the tire rubber covering station, as Figure 7a 、 Figure 7b shown. This labeling process is realized by relying on the RF tire tag installation machine installed near the tire rubber covering station. The RF tire tag installation machine consists of a label unwinding component, a label automatic identification and cutting machine, a heating suction cup for the label labeling head, a labeling head drive component, a label information writing component, etc. During the installation process:

[0095] ① The heating suction cup of the label labeling head adsorbs the RF tire tag with a through hole in the middle and heats it, making the rubber resin on the surface of the RF tire tag become a colloid with initial adhesion.

[0096] ② After receiving the labeling instruction, the labeling head drive component drives the heating suction cup of the label labeling head and the RF tire tag to align with the labeling position and quickly press down. The RF tire tag is bonded to the unvulcanized rubber through the rubber resin glue.

[0097] ③ The vulcanization process continues to cover the rubber, covering the RF tire tag in the unvulcanized rubber.

[0098] ④ The vulcanization process heats and pressurizes, and the rubber passes through the 7 mm - 10 mm through hole and is connected together, making the RF tire tag solidify in the tire side after vulcanization.

[0099] ⑤ A label information writing component is installed near the label labeling head. Under the control of the data center, the label information writing component writes information to the RF tire tag, including: tire brand, model, serial number, production date, shelf life, and other information. The tire rubber covering and vulcanization process can also choose to write the label chip information before or after installing the RF tire tag.

[0100] Performance analysis of the RF tire tag of the present invention:

[0101] (1) Mechanical stability performance analysis

[0102] ① In the present invention, the rubber-type resin has extremely high affinity with rubber, polyimide film, and aluminum foil, and the RF tire tag of the present invention has good adhesion stability with the tire.

[0103] ② During tire driving, the temperature rise is lower than 80 °C. Even if it accidentally rises to 100 °C, it does not affect the label stability. The weight of the RF tire tag of the present invention is only 22 mg, which does not affect the smoothness of the tire during operation. In addition, the polyimide film in the present invention has good stability at 200 °C and is suitable for high-temperature rubber vulcanization scenarios.

[0104] ③ The maximum size of the RF tire tag of the present invention is less than 20 mm × 20 mm, the thickness is less than 0.5 mm, and the weight is less than 20 mg in the vulcanization installation scenario. The 7 mm - 10 mm through hole at the center position of the label allows the rubber bodies on the upper and lower layers of the label to pass through and be integrally vulcanized, ensuring the stability of the label in the tire rubber layer. The vibration during tire driving has no impact on the stability of the label.

[0105] (2) RF performance analysis

[0106] ① The design of the RF tag resonator assembly of the present invention is different from that of the RF tags applied in traditional air scenarios. Considering the influence of rubber medium and steel wire background, relevant parameters of the RF resonator assembly suitable for rubber tire scenarios are comprehensively designed, thus having good RF effects.

[0107] ② The present invention is installed in the tire. The rubber in the tire is added with conductive carbon powder, and the steel wire in the tire is an excellent conductor, which can become an additional equivalent RF antenna fin of the RF resonator assembly. Compared with the RF tags in air scenarios, the present invention increases the reading distance of the RF resonator assembly installed on the tire.

[0108] (3) Installation performance analysis

[0109] ① The present invention is small in size, thin in thickness, easy to install, and has good installation stability.

[0110] ② The present invention uses rubber-type resin for reinforcement and installation, and has the advantages of better stability and durability compared with adhesive rubber, and the installation operation is more convenient and suitable for automation.

[0111] ③ The present invention can form a reel-mounted RF tire tag, which is suitable for automatically installing RF tire tags on the tire vulcanization production line and can also be adapted to automatically install on the finished tire conveyor line.

[0112] (4) Influence on the center of gravity of automobile tires

[0113] The weight of the radio frequency tire label of the present invention is only 22 mg, which is the lightest among traditional radio frequency tire labels, has a minimal impact on the center of gravity of the tire, and does not affect the stability of the tire during high-speed driving of the vehicle.

[0114] (5) Cost analysis

[0115] ① The present invention uses less material and has a simple manufacturing process, reducing the cost by more than 70% compared to traditional radio frequency tire labels.

[0116] ② The present invention is convenient for automatic labeling, saves labor, and improves the labeling efficiency.

[0117] The economic and social benefits of the present invention:

[0118] (1) The radio frequency tire label of the present invention has a low cost, which is conducive to promoting the informatization level of the tire manufacturing industry. Information such as the model and serial number, technical parameters, and production date of the tire can be accurately identified during tire manufacturing, product inspection, warehousing, and transportation.

[0119] (2) Tire agents can achieve full informatization in warehousing, sales, and transportation.

[0120] (3) Using the present invention, tire information management in auto repair shops can reduce labor and improve work efficiency.

[0121] (4) Consumers can learn in detail about the tires they purchase through the radio frequency tire label, protecting the rights and interests of consumers.

[0122] (5) The present invention can enable each tire to have a corresponding radio frequency chip and detailed information, which is conducive to preventing counterfeit brand tires, purifying the tire market, creating brand tires, and defending brand tires.

[0123] (6) The packaging structure of the present invention forms a strip packaging, which is conducive to the automatic installation of radio frequency tire labels and promotes the informatization and automation levels of the tire manufacturing industry.

[0124] (7) The reading distance of the radio frequency tire label of the present invention reaches more than 2 m, and the radio frequency chip can be written with vehicle information (such as license plate number, vehicle identification number, etc.), providing information for identifying vehicles for roads, traffic management, and parking lots, and helping to promote the establishment of a vehicle networking.

Claims

1. A radio frequency tire tag without antenna wings, characterized in that: include A high temperature resistant radio frequency resonant cavity assembly, comprising a base film, an aluminum foil loop antenna, and a radio frequency chip, wherein the aluminum foil loop antenna is located on the base film, and the radio frequency chip is coupled and connected to the aluminum foil loop antenna; A rubber-type resin is coated on the surface of the high-temperature resistant radio frequency resonant cavity assembly and covers the aluminum foil loop antenna and the radio frequency chip.

2. The radio frequency tire tag without antenna wing according to claim 1, characterized in that: The base film is a polyimide film with a thickness of 0.05 mm and an outer edge size of less than 20 mm×20 mm.

3. The radio frequency tire tag without antenna wing according to claim 1, characterized in that: The resonant frequency of the radio frequency chip after coupling with the aluminum foil loop antenna is 860 MHz to 940 MHz.

4. The radio frequency tire tag without antenna wing according to claim 1, characterized in that: The radio frequency tire tag without antenna wings installed on the inner side of the finished tire has a thickness of less than 0.7 mm and a weight of 22 mg.

5. The radio frequency tire tag without antenna wing according to claim 1, characterized in that: The RFID tire tag without antenna fins installed in the tire rubber vulcanization process has a thickness of 0.5 mm and a weight of less than 20 mg.

6. The radio frequency tire tag without antenna wing according to claim 1, characterized in that: A through hole is provided in the middle of the radio frequency tire tag without antenna wings, which is used to penetrate the rubber during the tire rubber vulcanization process so that the rubber on the upper and lower sides are connected together.

7. A packaging structure of a radio frequency tire tag, characterized in that: The invention comprises a plurality of radio frequency tire tags without antenna wings as claimed in any one of claims 1 to 6, wherein the plurality of radio frequency tire tags without antenna wings are continuously arranged in a single row to form a belt-like structure, and the belt-like structure is rolled into a disk.

8. A method for installing a radio frequency tire tag, characterized in that: The radio frequency tire tag without antenna wings as claimed in any one of claims 1 to 6 is manually installed on the inner side of the tire sidewall, during the installation process: Cutting a radio frequency tire label without antenna wings from the tire label roll, so that the rubber type resin of the radio frequency tire label faces upward and is placed on the label suction cup of the handheld labeling machine; the handheld labeling machine heats so that the rubber type resin on the surface of the radio frequency tire label becomes colloid; The labeling machine is held in hand and the label suction cup is aligned with the labeling position and pressed down, and the heating power is disconnected so that the label suction cup loses suction, and the radio frequency tire label is attached to the sidewall by means of the colloidal rubber resin; after the labeling machine is folded, the rubber resin is solidified so that the radio frequency tire label is fixedly connected to the sidewall; The numerical control center writes or reads tire information into or from the chip of the radio frequency tire tag through a radio frequency reading and writing device.

9. A method for installing a radio frequency tire tag, characterized in that: The radio frequency tire tag without antenna wings as described in any one of claims 1 to 6 is installed on the inner side of the tire sidewall by an automatic labeling device. During the installation process: The heating suction cup of the labeling head of the automatic labeling device absorbs the radio frequency tire label and heats it, so that the rubber-type resin on the surface of the radio frequency tire label becomes colloid; After the tire is in place, the suction cup manipulator controller of the automatic labeling device controls the labeling head heating suction cup to align with the labeling position and pressurize it, so that the radio frequency tire label is attached to the tire sidewall, and the labeling head heating suction cup is lifted; The numerical control center writes or reads tire information into or from the chip of the radio frequency tire tag through the radio frequency tag information reader / writer of the automatic labeling device.

10. A method for installing a radio frequency tire tag, characterized in that: The radio frequency tire tag without antenna wings as described in any one of claims 1 to 6 is installed inside the sidewall of the tire at the tire encapsulation station. During the installation process: The labeling head heating suction cup of the RF tire label installation machine absorbs the RF tire label with a through hole in the middle and heats it, so that the rubber-type resin on the surface of the RF tire label becomes colloid; The labeling head driving assembly of the radio frequency tire label installation machine drives the label labeling head heating suction cup and the radio frequency tire label to align with the labeling position and press down, and the radio frequency tire label is bonded to the unvulcanized rubber through the rubber-type resin glue; The vulcanization process continues with the rubber encapsulation, and the radio frequency tire tag is encapsulated in the unvulcanized rubber. The vulcanization process is heated and pressurized, and the rubber is connected together after passing through the through hole, so that the radio frequency tire tag is fixed in the sidewall of the vulcanized tire.

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