Radio frequency tire label without antenna wing and packaging structure

Abstract

The utility model discloses a radio frequency tire label without an antenna wing and a packaging structure in the technical field of radio frequency labels, the radio frequency tire label comprises a high temperature resistant radio frequency resonant cavity assembly and rubber type resin, the high temperature resistant radio frequency resonant cavity assembly comprises a bottom film, an aluminum foil loop antenna and a radio frequency chip, 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 device can be applied to a finished tire rubber coating vulcanization process, is low in cost and high in labeling efficiency, can realize the tracing of tires, and ensures the rights and interests of consumers.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency tag technology, specifically to a radio frequency tire tag and packaging structure without antenna fins. Background Technology

[0002] The most effective method for identifying and tracing vehicle tire information is to install radio frequency (RFID) tags on the tires. Traditional RFID tire tags come in various structural types, mainly including: Type A – “copper wire spiral antenna fin + PCB RF resonant cavity” RFID tire tags and Type B – “chemically etched aluminum foil antenna fin” RFID tire tags. However, traditional RFID tire tags have many drawbacks.

[0003] 1. Structure and defects of Type A "copper wire spiral antenna fin + PCB RF resonant cavity type" RF tire tag

[0004] This type of RFID tire tag is formed by soldering copper wire antenna wings onto the RFID resonant cavity of a double-sided PCB board. It mainly consists of four parts: a rubber tire tag base layer, a PCB board RFID resonant cavity assembly, copper wire bent antenna wings, and a rubber layer with adhesive function.

[0005] During the manufacturing process: Double-sided copper foil on the PCB board is chemically etched into upper and lower ring-shaped copper foils, which are then short-circuited via PCB through-holes to form an RF resonant cavity. RF chips are mounted at the cavity endpoints, forming the resonant cavity assembly. Two bent copper wire antennas are soldered to two pads on the outer edge of the resonant cavity. The resonant cavity assembly is bonded to a rubber tire tag substrate. A rubber layer, designed for adhesion to the tire, is then applied on top. In this structure, tire vibration or pressure changes do not affect the RF function of the copper wire antenna fins. A special adhesive layer with bonding properties is applied to the surface of the copper wire antenna RF tag, facilitating adhesion to the inner wall of the tire.

[0006] During installation, the label is placed in a designated position on the inside of the tire, and then its surface is heated and pressurized. After maintaining the pressure for a period of time, the RFID tire label adheres to the inside of the tire.

[0007] The defects of this structure include:

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

[0009] (2) The label is longer than 80mm and has a large area. The vibration of the car will affect the adhesion stability between the label and the tire.

[0010] (3) Installing the label inside the tire takes a long time, is very inconvenient, and is inefficient.

[0011] (4) The process is complex and the production efficiency is low, resulting in extremely high costs.

[0012] (5) Since the label thickness is greater than 1mm, installing the tire label during the tire overmolding process can easily cause bumps and rubber delamination, affecting the quality of the tire and driving safety.

[0013] (6) Because it is a single-label package, the technology and investment required to automate the installation inside the tire are extremely difficult and cannot be matched with automated tire production lines, so it cannot be promoted and applied in large quantities.

[0014] 2. Structure and defects of Type B "chemically etched aluminum foil antenna fin type" RFID tire tags

[0015] This type of RFID tire tag uses chemical etching of PET aluminum foil to form the antenna fins, allowing its length to be shortened to 50mm. During installation: a rubber layer is laminated to the top surface of the RFID tag, and a special adhesive rubber layer is laminated to the bottom surface.

[0016] The defects of this structure include:

[0017] (1) The length of the chemically etched aluminum foil antenna is greater than 40mm. The aluminum foil antenna wings do not have the function of bending and retracting like copper wire antenna wings. Therefore, the vibration during vehicle operation has a great impact on the stability of the tire label.

[0018] (2) If the thickness of the radio frequency tire tag is greater than 1 mm and the weight is greater than 1 g, it will still affect the dynamic balance of the tire.

[0019] (3) When installing RFID tire tags on tires, heating and pressurizing are required for a period of time, which is not efficient.

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

[0021] (5) Since the thickness of the radio frequency tire label is greater than 1mm, when the label is installed during the tire overmolding process, bumps are likely to appear and the rubber is prone to delamination, which affects the quality of the tire and driving safety.

[0022] (6) Since the upper limit of the temperature resistance of PET aluminum foil antenna is 175°C, while the temperature of tire rubber vulcanization may be higher than 180°C, PET aluminum foil chemical etching radio frequency antenna tags are not suitable for installation in tire vulcanization process.

[0023] The aforementioned shortcomings deserve to be addressed. Utility Model Content

[0024] In order to overcome the shortcomings of existing technologies, this utility model provides a radio frequency tire label and packaging structure without antenna fins.

[0025] The technical solution of this utility model is as follows:

[0026] An antenna-finless radio frequency (RF) tire tag comprises a high-temperature resistant RF resonant cavity assembly and a rubber-based resin. The high-temperature resistant RF resonant cavity assembly includes a base film, an aluminum foil loop antenna, and an RF chip. The aluminum foil loop antenna is located on the base film, and the RF chip is coupled to the aluminum foil loop antenna. The rubber-based resin is coated on the surface of the high-temperature resistant RF resonant cavity assembly and covers the aluminum foil loop antenna and the RF chip. When the RF tire tag is installed during the tire rubber vulcanization process, the antenna-finless RF tire tag has a through hole in the middle to allow rubber to pass through during the tire rubber vulcanization process, so that the rubber on the upper and lower sides are connected together.

[0027] The resonant frequency of the RF chip coupled with the aluminum foil loop antenna is 860MHz~940MHz. The thickness of the high-temperature resistant RF resonant cavity assembly is less than 0.25mm. Specifically: the bottom film is a polyimide film with a thickness of 0.05mm and an outer edge dimension of less than 20mm×20mm; the RF chip has a size of less than 0.4mm×0.4mm and a thickness of less than 0.15mm.

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

[0029] The thickness of the RFID tire tag installed on the inside of the finished tire is less than 0.7 mm, and its weight is 22 mg. The thickness of the RFID tire tag installed during 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 for radio frequency tire tags includes several of the aforementioned radio frequency tire tags without antenna fins. These tags are arranged in a single row to form a strip structure, which is then wound into a reel. Each reel has a capacity of more than 20,000 tire tags, meeting the requirements of an automatic tag installation machine.

[0031] According to the above-described solution, the beneficial effects of this utility model are as follows:

[0032] The radio frequency tire tag of this invention can be formed into a strip and rolled up, which can be used for the installation of radio frequency tags on finished tires, as well as for installation in the tire overmolding process, thus having a wider range of applications. This invention can be stably installed on the tire sidewall, with good installation stability, and does not affect the radio frequency performance of the radio frequency tire tag, nor does it affect the center of gravity of the tire during vehicle driving, ensuring the safety of vehicle driving.

[0033] The radio frequency tire label of this invention is low in cost and can be automatically applied, saving labor and improving labeling efficiency.

[0034] This utility model's radio frequency tire tag enables tire traceability, allowing tracking throughout the tire manufacturing, quality inspection, warehousing, and transportation processes. This protects consumer rights, provides information for identifying vehicles for highways, traffic management, and parking lots, and helps promote the establishment of the Internet of Vehicles. Attached Figure Description

[0035] Figure 1a This is a schematic diagram of the structure of the radio frequency tire tag without antenna wings in Embodiment 1 of this utility model;

[0036] Figure 1b for Figure 1a Top view sectional view;

[0037] Figure 2a This is a schematic diagram of the structure of the radio frequency tire tag without antenna wings in Embodiment 2 of this utility model;

[0038] Figure 2b for Figure 2a Side sectional view;

[0039] Figure 3a This is a schematic diagram of the label packaging structure corresponding to Embodiment 1 of this utility model;

[0040] Figure 3b for Figure 3a Side sectional view;

[0041] Figure 4a This is a schematic diagram of the structure of a traditional radio frequency tire tag;

[0042] Figure 4b for Figure 4a Top sectional view;

[0043] Figure 5a A schematic diagram of installing a conventional radio frequency tire tag on the inner sidewall of a tire;

[0044] Figure 5b for Figure 5a Side sectional view;

[0045] Figure 5c for Figure 5a Top sectional view;

[0046] Figure 6a This is a schematic diagram of the first embodiment of the present invention installed on the inner wall of a finished tire;

[0047] Figure 6b for Figure 6a Enlarged view of section C;

[0048] Figure 7a This is a schematic diagram of the installation of the present invention in the tire rubber vulcanization process according to Embodiment 2;

[0049] Figure 7b for Figure 7a Enlarged view of section E in the middle.

[0050] In the diagram, the labels for each item are as follows:

[0051] 01. Tire crown; 02. Tire sidewall; 03. Tire bead;

[0052] 1. Double-sided copper-clad PCB; 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. Solder joint; 4. Epoxy resin encapsulated RF chip and miniature RF resonant cavity; 5. Adhesive surface rubber layer; 6. Surface protective rubber layer;

[0053] 11. Radio frequency chip; 12. Aluminum foil loop antenna; 13. Base film; 14. Rubber-type resin; 15. Through hole. Detailed Implementation

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0055] like Figures 4a to 5c As shown, the traditional Type A "copper wire spiral antenna fin + PCB RF resonant cavity type" RF tire tag includes a double-sided copper-clad PCB board 1 and an epoxy resin-encapsulated RF chip and a miniature RF resonant cavity 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 the back side is provided with a back copper foil 1-1. The two front copper foils 1-2 are connected to the left copper wire antenna fin 2-1 and the right copper wire antenna fin 2-2 respectively through solder points 3.

[0056] The entire radio frequency tire tag is installed in the tire through an adhesive rubber layer 5 and a surface protective rubber layer 6. Specifically, the tire structure includes a tread 01, a sidewall 02, and a bead 03, and the radio frequency tire tag can be installed at the position of the sidewall 02.

[0057] The double-sided copper-clad PCB board 1 in this structure is made by chemical etching and becomes a radio frequency resonant cavity through PCB through-hole short-circuiting process. The structure manufacturing process is complicated and the production efficiency is low. In addition, the overall thickness of the label is large, which is not suitable for the production of the encapsulation and vulcanization process. The left and right copper wire antenna wings are large in size and heavy, which affects the stability of the car driving on the one hand, and on the other hand, they are easy to detach from the tire after bending, resulting in poor structural stability.

[0058] To address the shortcomings of traditional RFID tire tags, this invention provides an RFID tire tag without antenna fins, such as... Figures 1a to 3b , Figures 6a to 7bAs shown. The RF tire tag without antenna fins comprises a high-temperature RF resonant cavity assembly and a rubber-type resin, wherein the thickness of the high-temperature RF resonant cavity assembly is less than 0.25 mm, and the coating thickness of the rubber-type resin is greater than 0.3 mm.

[0059] The high-temperature resistant RF resonant cavity assembly includes a base film 13, an aluminum foil loop antenna 12, and an RF chip 11. The aluminum foil loop antenna 12 is located on the base film 13, and the RF chip 11 is coupled to the aluminum foil loop antenna 12. The high-temperature resistant RF resonant cavity assembly has no other antenna structures such as copper wire antennas around its periphery, significantly reducing the overall size of the RF resonant cavity.

[0060] The bottom film 13 is a transparent polyimide film with a thickness of 0.05mm and an outer edge size of less than 20mm×20mm. It can withstand temperatures above 220℃. On the one hand, it can protect the radio frequency chip 11 and the aluminum foil loop antenna 12. On the other hand, it can be used for installation in the finished tire or tire rubber vulcanization process.

[0061] The aluminum foil loop antenna 12 can be square, circular, or other shapes, and its thickness is 0.01 mm. The RF chip 11 is smaller than 0.4 mm × 0.4 mm and less than 0.15 mm thick, and is fixed to the aluminum foil loop antenna 12 with high-temperature conductive resin. The resonant frequency of the RF chip 11 after coupling with the aluminum foil loop antenna 12 is 860 MHz to 940 MHz. The inductance parameter of the aluminum foil loop antenna 12 is very important, as it relates to the recognition sensitivity of the RF tire tag. In addition to the influence of the technical parameters of the UHF RF chip, the influence of the steel wire rubber tire scenario is also considered (the rubber in the tire contains carbon powder, which is conductive, and the steel wire in the tire is an excellent conductor, becoming an additional equivalent RF antenna fin of the RF resonant cavity assembly, increasing the reading distance of the RF resonant cavity assembly mounted on the tire). The pattern of the aluminum foil loop antenna is designed by taking all these factors into account to ensure good RF reading sensitivity when installed inside the tire.

[0062] Rubber-type resin 14 is coated on the surface of the high-temperature RF resonant cavity assembly and covers the aluminum foil loop antenna 12 and the RF chip 11. 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 colloid formed after heating the rubber-type resin can be coated on the surface of the high-temperature RF resonant cavity assembly.

[0063] The radio frequency tire tag without antenna fins in this invention can be directly installed on the finished tire, or it can be directly installed inside the tire during the tire rubber vulcanization process, so that it forms an integral structure with the tire.

[0064] (1) Radio frequency tire tags without antenna fins are directly installed on the finished tire.

[0065] The RFID tire tag without antenna fins, installed on the inside of the finished tire, is less than 0.7 mm thick and weighs 22 mg.

[0066] (2) Radio frequency tire tags without antenna fins are directly installed inside the tire during the tire rubber vulcanization process.

[0067] The thickness of the RFID 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, the RFID tire tag without antenna fins can also have a through hole 15 in the middle, which allows the rubber to pass through during the tire rubber vulcanization process, so that the upper and lower rubber layers are connected together. Specifically: during the tire rubber vulcanization process, there is rubber on both the upper and lower sides of the tag. The upper and lower rubber layers at the 7mm to 10mm through hole 15 of the tag will be bonded together, encasing the RFID tire tag without antenna fins in rubber, thus giving the tire RFID tag stability.

[0068] Preferably, the diameter of the through hole is 7mm to 10mm. On the one hand, this can minimize the weight of the entire RFID tire tag and ensure a smooth connection between the upper and lower rubber layers. On the other hand, it can also fully guarantee the structural strength of the RFID tire tag.

[0069] like Figure 3a , Figure 3b As shown, this utility model also provides a packaging structure for radio frequency tire tags, which can integrate several radio frequency tire tags without antenna wings together, saving the space occupied by radio frequency tire tags without antenna wings, and also allowing radio frequency tire tags without antenna wings to be applied to automated production lines.

[0070] The packaging structure of this RFID tire tag includes several RFID tire tags without antenna fins, arranged in a single row to form a strip structure, which is then rolled into a reel. In this invention, the gap between the transparent identification positions of two adjacent RFID tire tags without antenna fins is 3mm, and each reel has a capacity of more than 20,000 tire tags, meeting the requirements of an automatic tag installation machine.

[0071] The radio frequency tire tag without antenna fins in this invention can be installed on tires very conveniently and quickly. Specifically, this invention provides a method for installing radio frequency tire tags, which includes two scenarios: the radio frequency tire tag without antenna fins is directly installed on the finished tire, and the radio frequency tire tag without antenna fins is directly installed inside the tire during the tire rubber vulcanization process.

[0072] 1. Radio frequency tire tags without antenna fins are directly installed on the finished tire.

[0073] In this case, RFID tire tags without antenna fins can be installed manually or automatically via a transmission line.

[0074] (1) Manual installation

[0075] Radio frequency tire tags without antenna fins are manually applied to the inside of the tire sidewall using a handheld labeling machine with a heated suction cup, such as... Figure 6a , Figure 6b As shown, during the installation process:

[0076] ① Cut an RFID tire label without antenna fins from the tire label roll, so that the rubber resin side of the RFID tire label is facing upwards, and place it on the label suction cup of the handheld labeling machine.

[0077] ② The handheld labeler heats up, and the suction cup part is automatically heated and kept at a constant temperature of 170°C, which turns the rubber-type resin on the surface of the RFID tire label into a gel, giving it an adhesive function.

[0078] ③ Manually hold the labeling machine and align the label suction cup with the labeling position, then press down; at this time, disconnect the heating power, so that the label suction cup loses its suction force, and the radio frequency tire label is pasted to the tire sidewall by the gel-like rubber resin; after 1 second, after the labeling machine is retracted, the rubber resin cools down to below 120℃, and the rubber resin cures, so that the radio frequency tire label is fixedly connected to the tire sidewall.

[0079] ④ The CNC center writes or reads tire information to the chip of the RFID tire tag through the RFID reader / writer, including but not limited to the tire's brand, model, serial number, production date, and shelf life.

[0080] (2) Automatic labeling on the tire finished product conveyor line

[0081] Radio frequency tire tags without antenna fins are installed on the inside of the tire sidewall using an automatic labeling device, such as... Figure 6a , Figure 6b As shown, automatic labeling relies on an automatic labeling device. The basic structure of this device includes a label unwinding assembly, an automatic identification and cutting assembly, a labeling head heating suction cup, a suction cup robotic arm controller, and an RFID tag information writing assembly connected to a data center. During installation:

[0082] ①When the tire has not reached the labeling position, the labeling head heats the suction cup to adsorb the RFID tire label and heats it, so that the rubber-type resin on the surface of the RFID tire label turns into a gel.

[0083] ② After the tire is in place, the tire transmission line automatically stops moving forward. The suction cup robot controller controls the labeling head to heat the suction cup and align it with the labeling position. After applying pressure, the radio frequency tire label is affixed to the side wall of the tire. After 0.5 seconds, the labeling head and heating suction cup are lifted and reset.

[0084] ③ Activate the RFID tag information writing component. Under the control of the CNC center, the RFID tag information reader writes or reads tire information (such as tire brand, model, serial number, production date, shelf life, etc.) to or reads the chip of the RFID tire tag.

[0085] ④ The tire transmission line is started, and the tire is sent out to the labeling position to complete the labeling.

[0086] The instruction to return the labeling head to its original position activates the label unwinding and automatic identification and cutting device, placing the next RFID tire label onto the heated suction cup of the labeling head, and automatically applying the label when the next tire enters the labeling position.

[0087] 2. Radio frequency tire tags without antenna fins are directly installed inside the tire during the tire rubber vulcanization process.

[0088] Radio frequency tire tags without antenna fins are installed inside the tire sidewall at the tire overmolding station, such as... Figure 7a , Figure 7b As shown, this labeling process relies on an RFID tire label installation machine installed near the tire overmolding station. The RFID tire label installation machine consists of a label unwinding assembly, an automatic label recognition and cutting machine, a label application head with a heated suction cup, an application head drive assembly, and a label information writing assembly. During the installation process:

[0089] ① The label applicator is heated by a suction cup that adsorbs the RFID tire label with a through hole in the middle and heats it, so that the rubber-type resin on the surface of the RFID tire label becomes a gel with initial adhesion.

[0090] ②After receiving the labeling instruction, the labeling head drive assembly drives the labeling head heating suction cup and the RFID tire label to align with the labeling position and press down quickly. The RFID tire label is then bonded to the uncured rubber using rubber-type resin adhesive.

[0091] ③ The vulcanization process continues with the overlay of rubber, encapsulating the RFID tire label within the unvulcanized rubber.

[0092] ④ The vulcanization process involves heating and pressurizing the rubber, which is then connected together through 7mm to 10mm through holes, so that the radio frequency tire tag is fixed in the sidewall of the vulcanized tire.

[0093] ⑤ A label information writing component is installed near the label affixing head. Under the control of the data center, the label information writing component writes information to the RFID tire label, including: tire brand, model, serial number, production date, shelf life, and other information. The tire overmolding process can also choose to write the label chip information before or after installing the RFID tire label.

[0094] Performance analysis of the radio frequency tire tag of this utility model:

[0095] (1) Mechanical stability performance analysis

[0096] ①In this utility model, the rubber-type resin has extremely high affinity with rubber, polyimide film and aluminum foil, and the radio frequency tire label of this utility model has good adhesion stability to the tire.

[0097] ② The temperature rise of the tire during operation is below 80℃, and even if it accidentally rises to 100℃, it will not affect the stability of the label. The RFID tire label of this invention weighs only 22mg, which does not affect the stability of the tire during operation. In addition, the polyimide film in this invention has good stability at 200℃, which is suitable for high-temperature rubber vulcanization scenarios.

[0098] ③ The maximum size of the radio frequency tire tag of this utility model is less than 20mm×20mm, the thickness is less than 0.5mm, and the weight is less than 20mg in the vulcanization installation scenario. The 7mm~10mm through hole in the center of the tag allows the rubber body of the upper and lower layers of the tag to pass through and become vulcanized as a whole, ensuring the stability of the tag in the tire rubber layer. The vibration during tire driving has no effect on the stability of the tag.

[0099] (2) Radio Frequency Performance Analysis

[0100] ① The design of the radio frequency tag resonant cavity assembly of this utility model is different from that of radio frequency tags used in traditional air scenarios. Taking into account the influence of rubber medium and steel wire background, the relevant parameters of the radio frequency resonant cavity assembly suitable for rubber tire scenarios are designed to achieve good radio frequency performance.

[0101] ② This utility model is installed in a tire. The tire rubber contains conductive carbon powder, and the steel wire in the tire is an excellent conductor, which can become an equivalent radio frequency antenna fin for the radio frequency resonant cavity assembly. Compared with radio frequency tags in an air scene, this utility model increases the reading distance of the radio frequency resonant cavity assembly installed on the tire.

[0102] (3) Installation performance analysis

[0103] ① This utility model is small in size, thin in thickness, easy to install, and has good installation stability.

[0104] ②This utility model uses rubber-type resin for reinforcement and installation, which has the advantages of better stability and durability compared with adhesive rubber, and the installation operation is more convenient and easy to automate.

[0105] ③ This utility model can form radio frequency tire label tapes in a reel, which is suitable for automatic installation of radio frequency tire labels on tire vulcanization production lines, and can also be adapted for automatic installation on finished tire transmission lines.

[0106] (4) The impact on the center of gravity of automobile tires

[0107] The radio frequency tire tag of this invention weighs only 22mg, which is the lightest compared to traditional radio frequency tire tags. It has minimal impact on the tire's center of gravity and does not affect the tire's stability when the car is traveling at high speed.

[0108] (5) Cost Analysis

[0109] ①This utility model uses less material and has a simple manufacturing process, reducing costs by more than 70% compared to traditional radio frequency tire tags.

[0110] ②This utility model facilitates automated labeling, saves labor, and improves labeling efficiency.

[0111] The economic and social benefits of this utility model:

[0112] (1) The radio frequency tire tag of this utility model has low cost and is conducive to promoting the informatization level of the tire manufacturing industry. It can accurately identify the tire model and serial number, technical parameters, production date and other information during tire manufacturing, quality inspection, warehousing and transportation.

[0113] (2) Tire dealers can realize full information technology for warehousing, sales and transportation.

[0114] (3) By utilizing this utility model, tire information management in auto repair shops can be improved, reducing manpower and increasing work efficiency.

[0115] (4) Consumers can learn more about the tires they purchase through radio frequency tire tags, which protects their rights.

[0116] (5) This utility model can make each tire have a corresponding radio frequency chip and detailed information, which is conducive to blocking counterfeit brand tires, purifying the tire market, creating brand tires, and defending brand tires.

[0117] (6) The packaging structure of this utility model forms a strip packaging, which is conducive to the automated installation of radio frequency tire tags and promotes the informatization and automation level of the tire manufacturing industry.

[0118] (7) The reading distance of the radio frequency tire tag of this utility model reaches more than 2m, and the radio frequency chip can be written with vehicle information (such as license plate number, vehicle frame number, etc.), which provides information for highways, traffic management and parking lots to identify vehicles and helps to promote the establishment of vehicle network.

Claims

1. A radio frequency tire tag without antenna fins, characterized in that, include: A high-temperature resistant radio frequency resonant cavity assembly includes a base film, an aluminum foil loop antenna, and a radio frequency chip. The aluminum foil loop antenna is located on the base film, and the radio frequency chip is coupled 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 fins according to claim 1, characterized in that, The thickness of the high-temperature resistant radio frequency resonant cavity assembly is less than 0.25 mm.

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

4. The radio frequency tire tag without antenna fins according to claim 1, characterized in that, The radio frequency chip has a size of less than 0.4mm × 0.4mm and a thickness of less than 0.15mm.

5. The radio frequency tire tag without antenna fins according to claim 1, characterized in that, The coating thickness of the rubber-type resin is greater than 0.3 mm.

6. The radio frequency tire tag without antenna fins according to claim 1, characterized in that, The radio frequency tire tag without antenna fins, installed on the inside of the finished tire, has a thickness of less than 0.7 mm and a weight of 22 mg.

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

8. The radio frequency tire tag without antenna fins according to claim 1, characterized in that, The radio frequency tire tag without antenna fins has a through hole in the middle, which allows rubber to pass through during the tire rubber vulcanization process, so that the rubber on the upper and lower sides can be connected together.

9. A packaging structure for an RFID tire tag, characterized in that, The invention includes several radio frequency tire tags without antenna wings as described in any one of claims 1-8, wherein several radio frequency tire tags without antenna wings are arranged in a single row to form a strip structure, and the strip structure is rolled into a coil.

10. The packaging structure of the radio frequency tire tag according to claim 9, characterized in that, The gap between the transparent identification bits between two adjacent radio frequency tire tags without antenna wings is 3 mm.

Images