CN216055169U - Anti-disassembly type RFID high-frequency antenna - Google Patents
Anti-disassembly type RFID high-frequency antenna Download PDFInfo
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- CN216055169U CN216055169U CN202122830233.2U CN202122830233U CN216055169U CN 216055169 U CN216055169 U CN 216055169U CN 202122830233 U CN202122830233 U CN 202122830233U CN 216055169 U CN216055169 U CN 216055169U
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- rfid
- loop coil
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Abstract
The utility model relates to an anti-disassembly RFID high-frequency antenna, which comprises a loop coil antenna substrate PET layer, a weak adhesive layer, a loop coil antenna adhesive layer and an RFID antenna loop coil antenna, wherein the weak adhesive layer, the loop coil antenna adhesive layer and the RFID antenna loop coil antenna are sequentially arranged on one side of the loop coil antenna substrate PET layer, the loop coil antenna is provided with a riveting region and is correspondingly and electrically connected with the riveting position on a gap bridge antenna of the RFID antenna, the gap bridge antenna is fixed on the gap bridge antenna substrate PET layer through the gap bridge antenna adhesive layer, the gap bridge antenna is also provided with an RFID chip electrically connected with the gap bridge antenna, the RFID chip is fixed at a bonding pad of the gap bridge antenna through anisotropic conductive adhesive, and a pressure-sensitive adhesive layer which covers the surface of the RFID chip is also covered between the riveting regions at two ends of the gap bridge antenna. The utility model solves the major defects of low yield and easy failure in the using process of the traditional anti-counterfeiting RFID high-frequency antenna.
Description
Technical Field
The utility model relates to the technical field of information and the field of anti-counterfeiting, and particularly discloses an anti-disassembly RFID high-frequency antenna.
Background
The current anti-fake situation of commodity is more severe, also increases gradually to the anti-fake demand of commodity in the market, also more and more high to realizing anti-fake product requirement, has generally adopted in the trade and has compromise the RFID label of forging the degree of difficulty and price/performance ratio and realize letting the person of resolving unable in batches make fake to adopt breakable, prevent the design of tearing open with the RFID label usually, make the RFID label can not or inconvenient by used repeatedly.
At present, a weak stripping layer is additionally arranged in an original aluminum etching antenna structure aiming at an RFID label, so that the bonding force between an aluminum RFID antenna on the RFID label and a PET antenna bearing layer is extremely weak, and when a counterfeiter wants to remove the RFID label attached to the surface of a package, the aluminum RFID antenna can be stripped from the PET antenna bearing layer under the action of an adhesive. And because the general thickness of aluminium matter RFID antenna is less than 0.03mm, does not possess sufficient rigidity itself, very easily is torn or seriously warp and influences antenna radio frequency performance to realize preventing that the RFID label from being carried out the purpose of reutilization after being removed completely.
According to the attached drawing 1, the structure of the common anti-dismantling RFID antenna on the market at present comprises an antenna substrate PET layer 11, a weak adhesive layer 2 and a loop coil antenna adhesive layer 3 are sequentially coated on one side of the antenna substrate PET layer 11, a gap bridge antenna adhesive layer 6 is directly coated on the other side of the antenna substrate PET layer, the surface of the loop coil antenna adhesive layer 3 is provided with a part of a loop coil antenna 4 of the RFID antenna through an aluminum etching process, an RFID chip 8 bonded with a bonding pad of the loop coil antenna 4 through anisotropic conductive adhesive is arranged, the surface of the gap bridge antenna adhesive layer 6 is provided with a part of a gap bridge antenna 7 of the RFID antenna through an aluminum etching process, the loop coil antenna 4 and the gap bridge antenna 7 are both provided with riveting areas 10 corresponding to each other in position, and the riveting areas 10 on the loop coil antenna 4 and the gap bridge antenna 7 are contacted with each other after being punched through a riveting punch tool, and finishing the conductive connection, namely obtaining the anti-disassembly RFID antenna.
The anti-disassembly RFID antenna has the advantages of simple structure and obvious effect, and can be suitable for most occasions. The defect is that when the aluminum foils on the two sides of the antenna substrate PET are riveted and connected in a conductive manner, the yield is reduced to some extent due to the addition of a layer of weak adhesive, and the production cost is increased. Meanwhile, when the aluminum etching process is used for printing, the riveting area 10 corresponding to the loop coil antenna 4 and the gap bridge antenna 7 needs to be accurately sleeved to correspond to the front and the back, so that the riveting process is complex, the control difficulty is high, and the yield is further reduced. Particularly, when the originally conductive connection of the RFID antenna is subjected to an external force, a part of the connection is easily broken, which causes the failure of the RFID tag.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and designs an anti-disassembly RFID high-frequency antenna, which improves the structure of the anti-disassembly RFID antenna in the prior art, and solves the problem of failure of an RFID tag caused by insecure riveting on the basis of a common fragile antenna.
The utility model is realized by the following steps: the utility model provides a prevent tearing open type RFID high frequency antenna which characterized in that: prevent tearing open type RFID high frequency antenna include loop coil antenna substrate PET layer and locate the weak binder layer of loop coil antenna substrate PET layer one side in proper order, loop coil antenna binder layer and the loop coil antenna of RFID antenna, the loop coil antenna be equipped with riveting zone and with the corresponding electricity in riveting position on the gap bridge antenna of RFID antenna be connected, the gap bridge antenna be fixed in gap bridge antenna substrate PET layer through gap bridge antenna binder layer on, the gap bridge antenna on still be equipped with the RFID chip of being connected with gap bridge antenna electricity. And a pressure-sensitive adhesive-free layer covering the surface of the RFID chip is covered between the riveting areas at the two ends of the bridge antenna.
The RFID chip is fixed at the bonding pad of the gap bridge antenna through the anisotropic conductive adhesive and is electrically connected with the gap bridge antenna on the two sides of the bonding pad.
And riveting areas on two sides of the annular coil antenna and riveting areas on two sides of the gap bridge antenna are stamped by a riveting stamping tool on a riveting machine to form reliable conductive connection. The loop coil antenna and the gap bridge antenna are both aluminum antennas obtained by etching or laser burning and etching processing technology.
The utility model comprises the following processing steps:
1. firstly, printing weak-adhesion glue on one side surface of an antenna bearing substrate by using a gravure printing machine in a full-page mode, and drying to form a weak-adhesion layer for realizing weak peeling between a metal antenna and an antenna substrate PET (polyethylene terephthalate), wherein the antenna bearing substrate is usually made of a transparent PET (polyethylene terephthalate) film material, namely a PET (polyethylene terephthalate) layer of a loop coil antenna substrate.
2. And coating the adhesive on the surface of the weak adhesive layer to form an annular coil antenna adhesive layer, and then bonding and compounding the metal aluminum foil on the surface of the annular coil antenna adhesive layer.
3. And printing the RFID antenna pattern on the surface of the metal aluminum foil by using a gravure printing machine, wherein the printing ink is etching-resistant ink.
4. And etching the printed composite material by adopting an etching process, wherein the RFID antenna pattern covered by the etching-resistant ink cannot be etched, the RFID antenna pattern is continuously remained on the surface of the adhesive layer of the loop coil antenna, and the rest of aluminum foil is removed after etching.
5. And (3) placing the etched composite material into a cleaning tank, and cleaning the residual etching-resistant ink and residual etching solution on the surface of the aluminum foil.
6. And drying to remove moisture to obtain a continuous coil material with the RFID antenna pattern (namely, the loop coil antenna), and finishing the processing of the loop coil part of the RFID antenna.
7. The gap-bridge antenna is then manufactured by the same process, but without the need to apply a weakly adhesive glue, resulting in a continuous roll with the gap-bridge antenna 7.
8. And fixing the RFID chip at a bonding pad of the gap bridge antenna by using a binding machine through anisotropic conductive adhesive, wherein the RFID chip is in conductive connection with metal parts of the gap bridge antenna on two sides of the bonding pad.
9. And a pressure-sensitive adhesive layer is covered between the riveting areas at the two ends of the gap bridge antenna, and simultaneously the RFID chip is covered.
10. The gap bridge antenna is attached to the surface of the annular coil antenna of the RFID antenna in a one-to-one correspondence mode on the labeling machine, the metal aluminum foil antennas of the two parts are opposite, riveting areas on two sides of the annular coil antenna correspond to riveting areas on two sides of the gap bridge antenna respectively and are aligned, the pressure-sensitive adhesive layer not only plays a role in bonding, but also plays an insulating role at the same time, and the metal aluminum foil antennas of the two parts of the annular coil antenna and the gap bridge antenna which do not need to be in contact are physically separated through the pressure-sensitive adhesive layer.
11. And (3) stamping riveting stamping tools on a riveting machine to stamp riveting areas on two sides of the annular coil antenna and riveting areas on two sides of the gap bridge antenna, so that the facing metal aluminum foils form reliable conductive connection through the riveting areas, and the anti-disassembly type RFID high-frequency antenna serving as the main part of the RFID anti-disassembly label is obtained.
The utility model has the beneficial effects that: the utility model designs a novel structure of a disassembly-preventing RFID antenna, which divides the RFID antenna into two parts: the first part is a loop coil antenna part of the antenna, the material is still manufactured by the traditional anti-disassembly process, but only the aluminum metal antenna on the side of the loop coil antenna is reserved, and the aluminum antenna part which plays a role of bridging on the other side of the original antenna substrate PET layer is removed; the second part is an antenna gap bridge part which is manufactured independently, a welding disc is arranged for realizing the electric connection of the antenna and the RFID chip, riveting areas are also arranged at the two ends of the gap bridge part and correspond to the positions of the riveting areas of the annular coil antenna part, the electric connection is realized through the riveting areas of the two parts, and the riveting areas (metal surfaces) of the two parts of the RFID antenna are riveted face to face when in riveting, so that the electric connection is realized. This is fundamentally different from the conventional antenna, in which two riveted regions on the front and back, which are required to realize electrical connection, are respectively located on both sides of the antenna substrate PET. The utility model not only solves the problems of complex riveting process, low yield and difficult control in the prior art, but also solves the important defects of low yield and easy failure in the use process of the conventional anti-counterfeiting RFID high-frequency antenna.
Drawings
Fig. 1 is a schematic cross-sectional view of a prior art tamper-resistant RFID antenna.
Fig. 2 is a schematic cross-sectional view of the structure of the tamper resistant RFID antenna of the present invention.
FIG. 3 is a schematic diagram of the structure of the antenna portion of the bridge to be processed by the composite RFID chip of the present invention.
FIG. 4 is a schematic structural diagram of the bridge antenna part compounded with the pressure-sensitive adhesive sticker.
FIG. 5 is a schematic diagram of the antenna portion structure of the loop coil of the RFID antenna of the present invention.
FIG. 6 is a schematic diagram of a combination structure of a loop antenna and a bridge antenna of the RFID antenna of the present invention.
In the figure: 1. a loop coil antenna substrate PET layer; 2. A weak binder layer; 3. A loop coil antenna adhesive layer; 4. A loop coil antenna; 5. A gap bridge antenna substrate PET layer; 6. A gap bridge antenna adhesive layer; 7. A gap bridge antenna; 8. An RFID chip; 9. A pressure sensitive non-drying adhesive layer; 10. Riveting the area; 11. An antenna substrate PET layer; 12. And a bonding pad.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
Referring to fig. 2, the utility model relates to a disassembly-proof RFID high-frequency antenna, which comprises a loop coil antenna substrate PET layer 1, a weak adhesive layer 2, a loop coil antenna adhesive layer 3 and a loop coil antenna 4 part of an RFID antenna, wherein the weak adhesive layer 2, the loop coil antenna adhesive layer 3 and the loop coil antenna 4 part are sequentially arranged on one side of the loop coil antenna substrate PET layer 1, the loop coil antenna 4 is provided with a riveting area 10 and is electrically connected with the riveting area 10 on the bridge antenna 7 of the RFID antenna correspondingly, the gap bridge antenna 7 is fixed on the gap bridge antenna substrate PET layer 5 through the gap bridge antenna adhesive layer 6, the bridge antenna 7 is also provided with a bonding pad fixedly connected with the RFID chip 8 through anisotropic conductive adhesive, the RFID chip 8 is electrically connected to the portions of the bridge antenna 7 on either side of the bond pad, and a pressure-sensitive adhesive layer 9 which covers the surface of the RFID chip 8 at the same time is covered between the riveting areas at the two ends of the bridge antenna 7.
The loop coil antenna 4 and the gap bridge antenna 7 of the anti-disassembly type RFID high-frequency antenna are both aluminum antennas processed by etching or laser burning technology, and the processing steps are further described in detail by adopting the etching technology in the embodiment.
According to the attached drawings 2-6, the processing steps of the utility model are as follows:
1. firstly, printing weak-adhesion glue on one side surface of an antenna bearing substrate by using a gravure press in a full-page mode, and drying to form a weak-adhesion layer 2 for realizing weak peeling between a metal antenna and an antenna substrate PET, wherein the antenna bearing substrate is usually made of a transparent PET film material, namely a loop coil antenna substrate PET layer 1.
2. And coating an adhesive on the surface of the weak adhesive layer 2 to form an annular coil antenna adhesive layer 3, and then bonding and compounding the metal aluminum foil on the surface of the annular coil antenna adhesive layer 3.
3. And printing the RFID antenna pattern on the surface of the metal aluminum foil by using a gravure printing machine, wherein the printing ink is etching-resistant ink.
4. And etching the printed composite material by adopting an etching process, wherein the RFID antenna pattern covered by the etching-resistant ink cannot be etched, the RFID antenna pattern is continuously remained on the surface of the annular coil antenna adhesive layer 3, and the rest of aluminum foil is removed after etching.
5. And (3) placing the etched composite material into a cleaning tank, and cleaning the residual etching-resistant ink and residual etching solution on the surface of the aluminum foil.
6. And drying to remove moisture to obtain a continuous coil material with the RFID antenna pattern (namely the loop coil antenna 4), and finishing the processing of the loop coil part of the RFID antenna.
7. And coating an adhesive on the upper surface of the PET layer 5 of the substrate of the gap bridge antenna to form a gap bridge antenna adhesive layer 6, and manufacturing the gap bridge part antenna of the RFID antenna on the surface of the gap bridge antenna adhesive layer 6 through the same printing and etching process steps of the annular coil part of the RFID antenna to obtain a continuous coil material with the gap bridge antenna 7.
8. The RFID chip 8 is fixed at the bonding pad 12 of the bridge antenna 7 through anisotropic conductive adhesive by using a binding machine, and the RFID chip 8 is in conductive connection with the metal parts of the bridge antenna 7 at the two sides of the bonding pad.
9. A pressure-sensitive adhesive layer 9 is covered between the riveting areas at the two ends of the gap bridge antenna 7, and simultaneously covers the RFID chip 8.
10. The gap bridge antenna 7 is correspondingly pasted on the surface of the annular coil antenna 4 of the RFID antenna one by one on a labeling machine, the metal aluminum foil antennas of the two parts are opposite, the riveting areas 10 on the two sides of the annular coil antenna 4 correspond to the riveting areas 10 on the two sides of the gap bridge antenna 7 respectively, the pressure-sensitive adhesive layer 9 not only plays a role in bonding, but also plays an insulating role at the same time, and the metal aluminum foil antenna parts, which do not need to be contacted, of the annular coil antenna 4 and the gap bridge antenna 7 are physically isolated through the pressure-sensitive adhesive layer 9.
11. And (3) stamping riveting areas 10 on two sides of the annular coil antenna 4 and riveting areas 10 on two sides of the gap bridge antenna 7 by using a riveting stamping tool on a riveting machine, so that the facing metal aluminum foils form reliable conductive connection through the riveting areas 10, and the anti-disassembly type RFID high-frequency antenna is obtained.
Thus, the processing and manufacturing of the anti-disassembly RFID high-frequency antenna which is the main part of the anti-disassembly RFID label are completed.
Claims (5)
1. The utility model provides a prevent tearing open type RFID high frequency antenna which characterized in that: prevent tearing open type RFID high frequency antenna include loop coil antenna substrate PET layer and locate the weak binder layer of loop coil antenna substrate PET layer one side in proper order, loop coil antenna binder layer and the loop coil antenna of RFID antenna, the loop coil antenna be equipped with riveting zone and with the corresponding electricity in riveting position on the gap bridge antenna of RFID antenna be connected, the gap bridge antenna be fixed in gap bridge antenna substrate PET layer through gap bridge antenna binder layer on, the gap bridge antenna on still be equipped with the RFID chip of being connected with gap bridge antenna electricity.
2. The tamper-resistant RFID high-frequency antenna according to claim 1, characterized in that: the RFID chip is fixed at the bonding pad of the gap bridge antenna through the anisotropic conductive adhesive and is electrically connected with the gap bridge antenna on the two sides of the bonding pad.
3. The tamper-resistant RFID high-frequency antenna according to claim 1, characterized in that: and a pressure-sensitive adhesive-free layer covering the surface of the RFID chip is covered between the riveting areas at the two ends of the bridge antenna.
4. The tamper-resistant RFID high-frequency antenna according to claim 1, characterized in that: and riveting areas on two sides of the annular coil antenna and riveting areas on two sides of the gap bridge antenna are stamped by a riveting stamping tool on a riveting machine to form reliable conductive connection.
5. The tamper-resistant RFID high-frequency antenna according to claim 1, characterized in that: the loop coil antenna and the gap bridge antenna are both aluminum antennas obtained by etching or laser burning and etching processing technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122830233.2U CN216055169U (en) | 2021-11-18 | 2021-11-18 | Anti-disassembly type RFID high-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122830233.2U CN216055169U (en) | 2021-11-18 | 2021-11-18 | Anti-disassembly type RFID high-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216055169U true CN216055169U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122830233.2U Active CN216055169U (en) | 2021-11-18 | 2021-11-18 | Anti-disassembly type RFID high-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216055169U (en) |
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2021
- 2021-11-18 CN CN202122830233.2U patent/CN216055169U/en active Active
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