CN214504447U

CN214504447U - Radio frequency label

Info

Publication number: CN214504447U
Application number: CN202120548815.9U
Authority: CN
Inventors: 焦林
Original assignee: Shenzhen Jg Technology Industries Co ltd
Current assignee: Shenzhen Jg Technology Industries Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-26
Anticipated expiration: 2031-03-16

Abstract

The application relates to the field of wave-shaped antenna labels, in particular to a radio frequency label, which comprises a label bottom layer and a label surface layer, wherein a wave-shaped antenna and a micro radio frequency sensor are arranged between the label bottom layer and the label surface layer, and the label bottom layer and the label surface layer are mutually attached through adhesive glue; the miniature radio frequency sensor is positioned at the wave trough of the wave antenna at the middle position; the wave antenna and the miniature radio frequency sensor are spaced apart. The radio frequency tag has the advantages of simple structure, environment-friendly method, long service life and low cost, and is beneficial to popularization of the radio frequency technology of the RFID tag.

Description

Radio frequency label

Technical Field

The application relates to the field of wave antenna tags, in particular to a radio frequency tag.

Background

At present, the application range of RFID labels and radio frequency technologies is more and more extensive. The RFID tags with different structures are derived along with different use scenes, and each RFID tag has the advantages and the advantages of the RFID tag and different defects.

The radio frequency label manufactured by the inlay method that the PET aluminum foil film chemical etching wave-shaped antenna and the chip are fixed together by the conductive adhesive in the related technology is the mainstream RFID label applied to the radio frequency technology, but the chip conductive adhesive and the chemical etching aluminum foil wave-shaped antenna are bonded together, so the chemical etching aluminum foil wave-shaped antenna is easy to peel off when being bent, and the bending resistance is poor, and the radio frequency label cannot be used for manufacturing a 'laundry label' and an automobile tire label.

The radio frequency RFID tag of the related art described above has poor bending resistance.

SUMMERY OF THE UTILITY MODEL

In order to improve the bending resistance of the radio frequency RFID tag, the application provides the radio frequency tag.

The radio frequency tag adopts the following technical scheme:

a radio frequency tag comprises a tag bottom layer and a tag surface layer, wherein a wave-shaped antenna and a micro radio frequency sensor are arranged between the tag bottom layer and the tag surface layer, and the tag bottom layer and the tag surface layer are mutually attached through adhesive; the miniature radio frequency sensor is positioned at the wave trough of the wave antenna at the middle position; the wave antenna and the miniature radio frequency sensor are spaced apart.

Through adopting above-mentioned technical scheme, bond together through the adhesive between label bottom and the label surface course to cover wave antenna and miniature radio frequency sensor between label bottom and label surface course, consequently wave antenna and miniature radio frequency sensor are difficult for exposing, have reduced wave antenna, miniature radio frequency sensor and label surface course or label bottom and have received the difficult mutual separation of external force when buckling or pressure deformation at radio frequency label, consequently promoted radio frequency label's durability greatly.

Optionally, the label bottom layer or the label surface layer is a paper sheet and/or a film, and the adhesive is a pressure-sensitive adhesive.

Through adopting above-mentioned technical scheme, the cost of scraps of paper and film is lower to pressure sensitive adhesive's viscidity is stronger, can be used for making the drop label, receives under the circumstances of buckling at scraps of paper or film, also can keep good laminating with scraps of paper or film of pressure sensitive adhesive, so sets up, and radio frequency label's durability is stronger.

Optionally, the label bottom layer and the label surface layer are non-woven fabrics, and the adhesive is a PUR type hot melt adhesive.

Through adopting above-mentioned technical scheme, the bending resistance of non-woven fabrics is stronger, can be used for making the laundry label, and inside wave antenna and miniature radio frequency sensor can keep good radio frequency coupling function in the laundry process, have promoted the inner structure stability of radio frequency label.

Optionally, the label bottom layer and the label surface layer are rubber sheets, and the adhesive glue is rubber-type glue.

By adopting the technical scheme, the rubber sheet has good ductility, and when the radio frequency tag is stretched by external force, the wave-shaped antenna and the rubber sheet are stretched together, so that the structures of the wave-shaped antenna and the micro radio frequency sensor are not easy to damage, and the normal operation of a radio frequency function is ensured.

Optionally, the wave-shaped antenna is made of a metal wire, and the metal wire is any one of a copper wire, an aluminum wire or a stainless steel wire.

By adopting the technical scheme, the cost of the copper wire or the aluminum wire in the metal wire is low, so that the cost of the wavy antenna is greatly saved, and the popularization of the radio frequency tag is facilitated.

Optionally, the diameter range of the metal wire is 0.05-0.08 mm.

By adopting the technical scheme, the maximum diameter range of the metal wire is 0.08mm, and the metal wire is thinner, so that the thickness of the radio frequency tag is thinner, the appearance of the radio frequency tag is smoother, and characters and digital patterns can be conveniently printed on the surface of the tag.

Optionally, the deployed length of the wavy antenna is 0.4 m.

By adopting the technical scheme, the wave-shaped antenna with the length of 0.4m can receive ultrahigh frequency signals, so that the wave-shaped antenna is more matched with the miniature radio frequency sensor.

Optionally, the diameter of the miniature radio frequency sensor is not more than 6mm, and the thickness of the miniature radio frequency sensor is not more than 0.2 mm.

By adopting the technical scheme, the thickness of the miniature radio frequency sensor is smaller, the occupied space is smaller, the area of the miniature radio frequency sensor under the action of external force is reduced, and the miniature radio frequency sensor is not easy to be extruded by the external force to cause bending deformation.

Optionally, the position offset between the wavy antenna and the miniature radio frequency sensor is not greater than 0.3 mm.

By adopting the technical scheme, when the position offset between the wave-shaped antenna and the miniature radio frequency sensor is less than 0.3mm, the radio frequency performance is kept in a good state, and the fault tolerance rate of manufacturing the radio frequency tag is increased.

Optionally, the metal wire includes a base, an inner loop antenna disposed on the base, an outer loop antenna surrounding the inner loop antenna, and a chip, the chip includes two pins, one end of the inner loop antenna is connected to one end of the outer loop antenna through a conductive wire, the other end of the inner loop antenna is connected to one pin of the chip, and the other end of the outer loop antenna is connected to the other pin of the chip.

By adopting the technical scheme, the miniature radio frequency sensor is small and exquisite in structure, simple in structure and simple in method, and miniaturization of the miniature radio frequency sensor is facilitated.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the method for manufacturing the wave-shaped antenna is simple, does not generate waste water and waste gas in the manufacturing process, and is environment-friendly;

2. the copper wire radio frequency wave antenna is not connected with the micro radio frequency sensor through conductive adhesive, so that the micro radio frequency sensor is very easy to separate from the radio frequency tag, and the purpose of recycling the micro radio frequency sensor to realize multiple use is achieved.

Drawings

Fig. 1 is a schematic structural diagram of a radio frequency tag according to an embodiment of the present application, in which a tag surface layer is separated from a tag bottom layer.

Fig. 2 is a cross-sectional view of a radio frequency tag according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a micro rf tag according to an embodiment of the present application.

Description of reference numerals: 1. a label bottom layer; 2. a label facing; 3. gluing layers; 4. a wave-shaped antenna; 5. a micro radio frequency sensor; 51. a base plate; 52. a chip; 53. an inner loop antenna; 54. an outer loop antenna; 55. a conductive wire.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a radio frequency tag.

Example 1:

referring to fig. 1 and 2, a radio frequency tag applied to the manufacturing method of the radio frequency tag includes a tag bottom layer 1 and a tag surface layer 2, a wave-shaped antenna 4 and a micro radio frequency sensor 5 are installed between the tag bottom layer 1 and the tag surface layer 2, and the wave-shaped antenna 4 and the micro radio frequency sensor 5 are fixed between the tag bottom layer 1 and the tag surface layer 2 through adhesive glue between the tag bottom layer 1 and the tag surface layer 2.

Further, the miniature rf sensor 5 is located at the middle position of the wave antenna 4, which may be at the middle position of the wave antenna or close to the middle position of the wave antenna. The wave antenna 4 and the micro radio frequency sensor 5 are spaced apart from each other, so that the wave antenna 4 and the micro radio frequency sensor 5 do not need to be electrically connected, but form a common radio frequency signal emission source or a radio frequency signal receiving source through electromagnetic induction coupling, and therefore damage to a circuit during electrical connection is reduced.

The wavy antenna 4 is made of metal wires, and the metal wires can be copper wires, aluminum wires, stainless steel or other metals, or can be the wavy antenna 4 made of copper, aluminum or other metal alloys. Furthermore, the diameter range of the metal wire is 0.05-0.08 mm, and the length of the wavy antenna 4 after being unfolded is 0.4 m.

The diameter of the miniature radio frequency sensor 5 is not more than 6mm, and the thickness of the miniature radio frequency sensor is not more than 0.2 mm. Further, the position offset between the wavy antenna 4 and the miniature radio frequency sensor 5 is not more than 0.3 mm.

Referring to fig. 3, further, the micro rf sensor 5 includes a bottom plate 51 and a chip 52 having two pins and attached to the bottom plate 51, an inner loop antenna 53 is mounted on the bottom plate 51, an outer loop antenna 54 is further disposed around the inner loop antenna 53, the inner loop antenna 53 and the outer loop antenna 54 are both in a ring shape with a gap, one end of the inner loop antenna 53 is connected to one end of the outer loop antenna 54 through a conductive wire 55, and the other end of the inner loop antenna 53 and the other end of the outer loop antenna 54 are respectively connected to the two pins of the chip 52. The connection of the pins of the chip 52 is beyond the range of the chip 52 covering the bottom plate 51, so that the pins do not occupy the thickness of the whole micro rf sensor 5 additionally, and the gap between the chip 52 and the bottom plate 51 is reduced, thereby contributing to reducing the thickness of the micro rf sensor 5.

The label layer and the label surface layer 2 may be made of the same material, and may be paper sheets such as writing paper, kraft paper, coated paper, double-sided offset paper or glossy paper, and may also be films such as PET film, PC film, PVC film, ABS film, PE film, PP film, BOPP film, and composite film.

The adhesive glue is coated on one side of the label surface layer 2 and one side of the label bottom layer 1 to form a glue coating layer 3, the wavy antenna 4 and the miniature radio frequency sensor 5 are positioned on the label surface layer 2, close to the center, one side of the label bottom layer 1 coated with the glue coating layer 3 corresponds to one side of the label surface layer 2 coated with the glue coating layer 3 in a matching mode, and therefore the edges of the label bottom layer 1 and the label surface layer 2 are corresponding. The wavy antenna 4 and the miniature video sensor are both away from the edge of the label surface layer 2, so that the wavy antenna 4 and the miniature radio frequency sensor 5 are not easily exposed out of the label surface layer 2 and the label bottom layer 1.

The adhesive bonding can be pressure-sensitive adhesive, specifically natural rubber pressure-sensitive adhesive, synthetic rubber pressure-sensitive adhesive or thermoplastic elastomer pressure-sensitive adhesive. The pressure-sensitive adhesive is firmly bonded, and the wave-shaped antenna 4 is not connected with the miniature radio frequency sensor 5 through the conductive adhesive, so that the miniature radio frequency sensor 5 is easily separated from the radio frequency tag during disassembly, the aim of recycling the miniature radio frequency sensor 5 to realize repeated use can be achieved, the application cost of the radio frequency tag is greatly reduced, and the application and popularization of a radio frequency technology are facilitated.

The implementation principle of the embodiment 1 is as follows: according to the application, the wavy antenna 4 and the miniature radio frequency sensor 5 are integrally adhered between the label surface layer 2 and the label bottom layer 1, so that the wavy antenna 4 and the miniature radio frequency sensor 5 are not easy to expose, the bending resistance is strong, and the surface flatness of the manufactured radio frequency label is good and printing can be carried out due to the small sizes of the wavy antenna 4 and the miniature radio frequency sensor 5; the radio frequency tag has a simple structure, so that the cost of the radio frequency tag is low, and the popularization of a radio frequency technology is facilitated.

Example 2:

the difference between this embodiment and embodiment 1 is that the material of the label base layer 1 and the label face layer 2 is a nonwoven material such as spunlace nonwoven fabric, heat seal nonwoven fabric, pulp air-laid nonwoven fabric, wet process nonwoven fabric, spunbond nonwoven fabric, meltblown nonwoven fabric, needle-punched nonwoven fabric, or stitch-bonded nonwoven fabric. The melt-blown fabric can be a PET nonwoven fabric or a PP nonwoven fabric, and the like, in terms of material.

The adhesive is a PUR hot melt adhesive, and specifically can be a thermoplastic PU elastomer hot melt adhesive or a reactive PU hot melt adhesive.

The implementation principle of the embodiment 2 is as follows: the non-woven fabric can be washed by water, so that the manufactured radio frequency tag is resistant to bending, the radio frequency function of the radio frequency tag is not easily influenced, and the radio frequency tag is suitable for manufacturing a laundry tag.

Example 3:

the difference between this embodiment and embodiment 1 is that the material of the label bottom layer 1 and the label top layer 2 may be rubber sheets, and the adhesive may be rubber type glue made of synthetic rubber, such as neoprene glue, HY-308 metal rubber glue, HY-T160PE slow dry glue, HY-T160PP slow dry glue, or cold vulcanized glue. The bonding between the rubber type glue and the rubber sheet is firmer, and the performance between the rubber type glue and the rubber sheet is better.

The implementation principle of the embodiment 3 is as follows: when the label is pulled to extend by an external force, the corrugated antenna 4 and the label bottom layer 1 of the rubber skin extend together to form the corrugated antenna 4, and the stability of the micro radio frequency sensor 5 is not influenced, so that the radio frequency performance of the tire label is not influenced when the tire label is pulled by the external force; the connection mode of the wave-shaped antenna 4 and the miniature radio frequency sensor 5 is simple, pins do not need to be welded, so that the cost is low, the universality is high, and the PCB structure is eliminated, so that the fragile PCB does not need to be protected, the wave-shaped antenna can be directly installed on the outer side of the tire and does not need to be installed on the inner side of the tire, and the installation mode of the tire label is simple and the signal is good.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A radio frequency tag, characterized by: the RFID tag comprises a tag bottom layer (1) and a tag surface layer (2), wherein a wave-shaped antenna (4) and a miniature radio frequency sensor (5) are arranged between the tag bottom layer (1) and the tag surface layer (2), and the tag bottom layer (1) and the tag surface layer (2) are mutually attached through adhesive; the miniature radio frequency sensor (5) is positioned at the wave trough of the wave-shaped antenna (4) at the middle position; the wavy antenna (4) is spaced from the miniature radio frequency sensor (5).

2. A radio frequency tag according to claim 1, wherein: the label bottom layer (1) or the label surface layer (2) is a paper sheet and/or a film, and the adhesive is a pressure-sensitive adhesive.

3. A radio frequency tag according to claim 1, wherein: the label bottom layer (1) and the label surface layer (2) are non-woven fabrics, and the adhesive is PUR type hot melt adhesive.

4. A radio frequency tag according to claim 1, wherein: the label bottom layer (1) and the label surface layer (2) are rubber sheets, and the adhesive is rubber type glue.

5. A radio frequency tag according to claim 1, wherein: the wave-shaped antenna (4) is made of metal wires.

6. A radio frequency tag according to claim 5, wherein: the diameter range of the metal wire is 0.05-0.08 mm.

7. A radio frequency tag according to claim 1, wherein: the length of the wave-shaped antenna (4) after being unfolded is 0.4 m.

8. A radio frequency tag according to claim 1, wherein: the diameter of the miniature radio frequency sensor (5) is not more than 6mm, and the thickness of the miniature radio frequency sensor is not more than 0.2 mm.

9. A radio frequency tag according to claim 1, wherein: the position deviation between the wave-shaped antenna (4) and the miniature radio frequency sensor (5) is not more than 0.3 mm.

10. A radio frequency tag according to claim 1, wherein: the wavy antenna (4) comprises a base, an inner ring antenna (53) arranged on the base, an outer ring antenna (54) arranged on the periphery of the inner ring antenna (53) in a surrounding mode, and a chip (52), wherein the chip (52) comprises two pins, one end of the inner ring antenna (53) is connected with one end of the outer ring antenna (54) through a conducting wire (55), the other end of the inner ring antenna (53) is connected with one pin of the chip (52), and the other end of the outer ring antenna (54) is connected with the other pin of the chip (52).