CN212809269U

CN212809269U - RFID label with interruption detection function

Info

Publication number: CN212809269U
Application number: CN202022069622.3U
Authority: CN
Inventors: 林超
Original assignee: Shangyang Rfid Technology Yangzhou Co ltd
Current assignee: Shangyang Rfid Technology Yangzhou Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-03-26
Anticipated expiration: 2030-09-18

Abstract

And the RFID tag has an interruption detection function. The utility model relates to a Radio Frequency Identification (RFID) technical field, concretely relates to take RFID label of break-make detection function. An RFID tag with a break detection function capable of recording information of a tag destruction event is provided. The utility model also considers the manufacturing difficulty of the large-area fragile coil, sets the detection coil which is arranged in a segmented way and connected by a bridge, and only needs to set the bridge part of the detection coil as the fragile area, thereby reducing the processing difficulty of the fragile detection coil and improving the product yield on one hand; on the other hand still makes the RFID chip can set up and keep away from the one side of needing anti-fake article at the antenna carrier, and chip damage when this kind of condition can avoid the label to take off, simultaneously, needs anti-fake article and adhesive layer affinity low, or when needing anti-fake article surface non-plane, effectively improves the reliability of being connected of RFID label and needs anti-fake article.

Description

RFID label with interruption detection function

Technical Field

The utility model relates to a Radio Frequency Identification (RFID) technical field, concretely relates to take break-make to detect RFID label of function.

Background

With the continuous development of the RFID technology, new chips aiming at the RFID application are continuously developed, and a new generation of RFID chips launched by chip companies such as NXP, EM, ST, and Reddingdan microelectronics and the like appear in the recent market, and the chips have a special 'on-off detection' function. When the on-off detection function is activated, the automatic updating of the label data can be realized, and the label damage event is permanently stored. The on-off detection function can be applied to the anti-counterfeiting and information tracing of articles such as high-end wine products, mother and infant articles, luxury articles and the like. However, no suitable RFID tag design exists in the current market for chips with on-off detection functions, such as Ntag213TT, Ntag424DNATT, ST25TV, EM4425, and the like.

Chinese patent 201922397480.0 discloses an anti-tamper label, which is formed by extending a disc coil to form a rectangular coil, so that the rectangular coil is torn when the label is lifted, and the label cannot be read, thereby playing an anti-tamper role.

However, this tag design cannot be directly used for a chip with a break detection function, and after the epitaxial coil breaks, the antenna opens and the chip cannot be read, i.e., the break detection function of the chip is not utilized at all; on the other hand, in practical application, in order to ensure that the rectangular coil is reliably torn off rather than being completely torn off along with the label surface material, the chip needs to be arranged on the surface of the antenna carrier facing the article to be anti-counterfeit, and when the label is used for the article to be anti-counterfeit with a non-planar surface or low surface bonding affinity, the reliable bonding of the label is difficult to ensure.

Therefore, how to effectively utilize the on-off detection function of a new generation of RFID chip to enable the label damage event, namely the opening event information of the object needing anti-counterfeiting to be recorded, becomes a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above problem provides a can take notes RFID label of band-pass interruption detection function of label destruction incident information.

The technical scheme of the utility model is that:

the RFID tag with the function of detecting the disconnection comprises a chip, a main coil, a detection coil and an antenna carrier; the chip comprises two radio frequency function pins and two on-off detection pins;

the main body coil comprises a first antenna, a second antenna and a first gap bridge antenna, wherein the first antenna and the second antenna are positioned on the upper portion of an antenna carrier, the first gap bridge antenna is positioned on the lower portion of the antenna carrier, one end of the first antenna is provided with a gap bridge point A, the other end of the first antenna is connected with one radio frequency function pin of a chip, one end of the second antenna is provided with a gap bridge point B, the other end of the second antenna is connected with the other radio frequency function pin of the chip, and the first gap bridge antenna is connected;

the detection coil is connected with the two on-off detection pins of the chip and is connected with the antenna carrier through a fragile layer, and the fragile layer is located on one surface, facing the anti-counterfeiting object, of the antenna carrier.

Furthermore, the detection coil is positioned on the upper part of the antenna carrier, the detection coil is U-shaped, and two ends of the detection coil are respectively connected with the two on-off detection pins of the chip.

Further, the detection coil includes antenna three and antenna four that are located antenna carrier upper portion and a gap bridge antenna two that is located antenna carrier lower part, the one end of antenna three is equipped with gap bridge point C, the break-make of other end connection chip and detects the pin, the one end of antenna four is equipped with another break-make of gap bridge point D, other end connection chip and detects the pin, gap bridge antenna two is connected gap bridge point C and gap bridge point D, gap bridge antenna two passes through breakable layer with antenna carrier connects.

Further, the part of the body coil on the upper part of the antenna carrier is square, round or irregular.

The utility model discloses a RFID label of band-pass broken detection function, uncovers breakable detection coil through the setting, and the break-make that connects the RFID chip with the detection coil detects the pin for when needing anti-fake article to open (label destroyed promptly), detection coil opens circuit, and the break-make of activation RFID chip detects the function and this incident information of permanent record.

The utility model also considers the manufacturing difficulty of the large-area fragile coil, sets the detection coil which is arranged in a segmented way and connected by a bridge, and only needs to set the bridge part of the detection coil as the fragile area, thereby reducing the processing difficulty of the fragile detection coil and improving the product yield on one hand; on the other hand still makes the RFID chip can set up and keep away from the one side of needing anti-fake article at the antenna carrier, and chip damage when this kind of condition can avoid the label to take off, simultaneously, needs anti-fake article and adhesive layer affinity low, or when needing anti-fake article surface non-plane, effectively improves the reliability of being connected of RFID label and needs anti-fake article.

Drawings

Figure 1 is a schematic structural view of the present invention,

figure 2 is a schematic cross-sectional view of the structure of figure 1,

figure 3 is a schematic view of the application of figure 1,

figure 4 is a schematic structural view of another embodiment of the present invention,

figure 5 is a schematic cross-sectional view of figure 4,

fig. 6 is a schematic diagram of the application of fig. 4.

In the figure: 1-a main coil, 11-a first antenna, 12-a first gap bridge antenna, 13-a second antenna; 2-a detection coil, 21-an antenna III, 22-a gap bridge antenna II, 23-an antenna IV; 3-an antenna carrier; 4-chip; 51-upper frangible layer, 52-lower frangible layer; 61-upper compound glue, 62-lower compound glue; 7-a face material; 8-an anti-counterfeiting article is needed;

the antenna comprises an A-antenna I bridge point, a B-antenna II bridge point, a C-antenna III bridge point and a D-antenna IV bridge point.

Detailed Description

The present invention will be further described with reference to the accompanying drawings 1-6.

The utility model discloses a RFID label of band-pass break detection function, including chip 4, main body coil 1, detection coil 2 and antenna carrier 3, engineering plastics such as PET are usually adopted to antenna carrier 3, and chip 4 is the RFID chip that has break-make detection function, includes two radio frequency function pins and two break-make detection pins, and chip 4 is through conducting resin and main body coil 1 and detection coil 2 fixed connection, and chip 4 is used for writing down the opening incident that needs anti-fake 8;

the main body coil 1 comprises a first antenna 11 and a second antenna 13 which are positioned on the upper part of the antenna carrier 3 and a first gap bridge antenna 12 which is positioned on the lower part of the antenna carrier 3, wherein one end of the first antenna 11 is provided with a gap bridge point A, and the other end of the first antenna is connected with a radio frequency function pin of the chip 4; one end of the second antenna 13 is provided with a gap bridge point B and is bent into a disc-shaped structure from the level of the gap bridge point B to the outer layer, the other end of the second antenna is connected with another radio frequency function pin of the chip 4, the first gap bridge antenna 12 is connected with the gap bridge point A and the gap bridge point B, the gap bridge connection is usually realized by adopting a hole on the antenna carrier 3, so that the antennas (such as aluminum foils) at the upper opening and the lower opening of the hole are meshed and conducted, or conductive silver paste is poured into the hole, so that the antennas at the upper surface and the lower surface of the antenna carrier 3 are electrically connected, the gap bridge connection is the prior art, and the connection of;

the detection coil 2 is connected with two on-off detection pins of the chip 4, the detection coil 2 is connected with the antenna carrier 3 through a fragile layer, and the fragile layer is positioned on one surface of the antenna carrier 3 facing to the anti-counterfeiting object 8, so that when the label is uncovered, the fragile layer is broken, the detection coil 2 is opened, and the on-off detection function of the chip 4 is activated; the frangible layer may be achieved by bonding a frangible film to the antenna carrier 3, or by applying a frangible coating to the antenna carrier 3.

The detection coil 2 is positioned at the upper part of the antenna carrier 3, the detection coil 2 is U-shaped, two ends of the detection coil 2 are respectively connected with two on-off detection pins of the chip 4, and an upper fragile layer 51 is arranged between the detection coil 2 and the antenna carrier 3; when the anti-counterfeiting label is applied, the chip 4 is positioned on one surface of the antenna carrier 3 close to the article 8 to be anti-counterfeiting, and the label is adhered to the surface of the article 8 to be anti-counterfeiting through the lower compound adhesive 62. Further, a surface material 7 for improving a protection function may be further disposed on a side of the antenna carrier 3 away from the article 8 to be protected against forgery, and the surface material 7 is adhered and fixed to the tag main body portion by an upper composite adhesive 61, as shown in fig. 3.

The detection coil 2 comprises an antenna three 21 and an antenna four 23 which are positioned on the upper part of the antenna carrier 3 and a gap bridge antenna two 22 which is positioned on the lower part of the antenna carrier 3, wherein one end of the antenna three 21 is provided with a gap bridge point C, the other end of the antenna three is connected with one on-off detection pin of the chip 4, one end of the antenna four 23 is provided with a gap bridge point D, the other end of the antenna four is connected with the other on-off detection pin of the chip 4, the gap bridge antenna two 22 is connected with the gap bridge point C and the gap bridge point D, and the gap bridge antenna two 22 is connected; at this moment, the chip 4 is located on the surface of the antenna carrier 3 far away from the article 8 to be anti-counterfeit, and when the surface of the article 8 to be anti-counterfeit is non-planar or the affinity between the surface and the adhesive is low, the structure can ensure the reliable adhesion between the label and the article 8 to be anti-counterfeit, and simultaneously, the chip 4 is prevented from being damaged when the label is uncovered, as shown in fig. 6.

The part of the main coil 1 on the upper part of the antenna carrier 3 can be set to be square, round or special-shaped according to the use requirement, and the size of the disk-shaped structure formed by the bending of the antenna two 12 can be adjusted according to the capacitance value of the chip 4.

The disclosure of the present application also includes the following points:

(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;

the above embodiments are only examples disclosed in the present application, but the scope of the present disclosure is not limited thereto, and those skilled in the art should be able to change some of the technical features of the present disclosure within the scope of the present application.

Claims

1. The RFID tag with the function of detecting the disconnection comprises a chip, a main coil, a detection coil and an antenna carrier; the chip comprises two radio frequency function pins and two on-off detection pins;

the anti-counterfeiting detection device is characterized in that the detection coil is connected with the two on-off detection pins of the chip, the detection coil is connected with the antenna carrier through a fragile layer, and the fragile layer is located on one surface, facing to an anti-counterfeiting object, of the antenna carrier.

2. The RFID tag with disconnection detecting function according to claim 1, wherein the detecting coil is located on the upper portion of the antenna carrier, the detecting coil is U-shaped, and two ends of the detecting coil are respectively connected to two disconnection detecting pins of the chip.

3. The RFID tag with the function of detecting disconnection according to claim 1, wherein the detection coil comprises a third antenna and a fourth antenna which are positioned on the upper part of the antenna carrier, and a second bridge antenna which is positioned on the lower part of the antenna carrier, wherein one end of the third antenna is provided with a bridge point C, the other end of the third antenna is connected with one disconnection detection pin of the chip, one end of the fourth antenna is provided with a bridge point D, the other end of the fourth antenna is connected with the other disconnection detection pin of the chip, the second bridge antenna is connected with the bridge point C and the bridge point D, and the second bridge antenna is connected with the antenna carrier through the fragile layer.

4. The RFID tag with disconnection detecting function according to claim 1, wherein a portion of the body coil at an upper portion of the antenna carrier is square, circular, or irregularly shaped.