CN115271020A

CN115271020A - RFID label

Info

Publication number: CN115271020A
Application number: CN202210985671.2A
Authority: CN
Inventors: 陈岗
Original assignee: Guangdong Industry Technical College
Current assignee: Guangdong Industry Technical College
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-11-01

Abstract

The invention discloses an RFID label, which comprises a label box and a push-pull cover; at least one label body is arranged in the label box; the label box is connected with the push-pull cover in a sliding manner; a placing cavity is formed in the label box, and the label body is arranged in the placing cavity; a main board is arranged in the label body, slide rails are arranged on two sides of the main board, and the main board is arranged in the label body in a sliding mode; and an RFID label is placed on the main board. In the invention, double protection measures are designed outside the RFID tag, so that the RFID tag can be normally used for a long time; the structural design of the label box and the label body is convenient for disassembly, replacement and reuse; and the structure of the RFID label can improve the radiation intensity of the wireless electromagnetic wave and ensure the accurate information transmission of the RFID label.

Description

RFID label

Technical Field

The invention relates to the technical field of radio frequency identification, in particular to an RFID (radio frequency identification device) label.

Background

The RFID tag is an electronic tag, also called as a radio frequency tag, a transponder and a data carrier, the reader is also called as a reading device, a scanner, a reading head, a communicator and a reader-writer, and the electronic tag and the reader realize the spatial coupling of radio frequency signals through a coupling element depending on whether the electronic tag can wirelessly rewrite data; in the coupling channel, energy transfer and data exchange are realized according to a time sequence relation, the RFID is a non-contact automatic identification technology, a target object is automatically identified and relevant data are obtained through a radio frequency signal, manual intervention is not needed in identification work, and the RFID can work in various severe environments. The RFID technology can identify high-speed moving objects and simultaneously identify a plurality of labels, and is quick and convenient to operate.

The existing RFID label is fixed by bolts or adhered by watering in order to ensure the safety in use, so that the RFID label is inconvenient to replace, and radio electromagnetic waves emitted by the RFID label can be absorbed by objects in the environment on certain occasions, thereby influencing the information identification accuracy of the RFID label.

Disclosure of Invention

It is an object of the present invention to provide an RFID tag to solve the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides an RFID (radio frequency identification) tag, which comprises a tag box and a push-pull cover; at least one label body is arranged in the label box; the label box is connected with the push-pull cover in a sliding manner; a placing cavity is formed in the label box, and the label body is arranged in the placing cavity; a main board is arranged in the tag body, slide rails are arranged on two sides of the main board, and the main board is arranged in the tag body in a sliding manner; the RFID label is placed on the main board.

A push-pull groove is formed in the contact surface of the label box and the push-pull cover, and the push-pull groove is connected with a push-pull block formed on the push-pull cover in a sliding mode; and an anti-skid area is formed on the push-pull cover.

The label body comprises a protective shell, one side of the protective shell is inwards provided with a sliding cavity, and two opposite side walls of the sliding cavity are fixedly provided with the sliding rails; the cavity opening of the sliding cavity is rotationally connected with a cover plate through a rotating shaft; a through hole is formed in one side, away from the rotating shaft, of the cover plate; a circular groove is further formed in the outer side of the cavity opening of the sliding cavity; a magnetic buckle is arranged in the circular groove; the magnetic buckle is magnetically attracted with the insert block; the insert block is arranged on the outer side of the cover plate and is arranged in the circular groove through the through hole.

The RFID tag comprises a first metal plate, a connecting plate fixed on the first metal plate, a second metal plate connected with the connecting plate and a circuit board arranged between the connecting plate and the second metal plate; the circuit board is provided with a tag antenna and a tag chip; the second metal plate is electrically connected with the circuit board; the tag chip is electrically connected with the tag antenna through the circuit board.

The second metal plate is a radiator of the tag antenna, and the first metal plate is a reflector of the tag antenna.

The connecting plate comprises two symmetrical areas, and the two second metal plates are arranged in the two areas respectively.

Each area of the connecting plate is provided with a groove, the second metal plate in the area is positioned in the groove, and the adjacent second metal plates are insulated by the connecting plate.

The tag antenna is of a microstrip line structure.

The thickness of the tag antenna is less than 1mm.

The first metal plate and the second metal plate are made of stainless steel and copper plating alloy.

The invention discloses the following technical effects: in the invention, double protection measures are designed outside the RFID tag, so that the RFID tag can be normally used for a long time; the structural design of the label box and the label body is convenient for disassembly, replacement and reuse; and the structure of the RFID label can improve the radiation intensity of wireless electromagnetic waves and ensure the accurate information transmission of the RFID label.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a top view of the overall structure;

FIG. 2 is a right side view of the overall structure;

FIG. 3 is a top view of the tag body structure;

FIG. 4 is a rear view of the tag body structure;

fig. 5 is a schematic diagram of an RFID tag structure.

Wherein, 1, label box; 2. a push-pull cover; 3. a label body; 4. a main board; 5. an RFID tag; 21. a push-pull block; 22. an anti-slip region; 31. a protective shell; 32. a cover plate; 33. a circular groove; 34. inserting a block; 51. a first metal plate; 52. a connecting plate; 53. a second metal plate; 54. a tag antenna; 55. and (3) a label chip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides an RFID (radio frequency identification) tag, which comprises a tag box 1 and a push-pull cover 2; at least one label body 3 is arranged in the label box 1; the label box 1 is connected with the push-pull cover 2 in a sliding way; a placing cavity is formed in the label box 1, and a label body 3 is arranged in the placing cavity; a main board 4 is arranged in the label body 3, slide rails are arranged on two sides of the main board 4, and the main board 4 is arranged in the label body 3 in a sliding manner; an RFID tag 5 is placed on the motherboard 4.

A push-pull groove is formed on the contact surface of the label box 1 and the push-pull cover 2, and the push-pull groove is in sliding connection with a push-pull block 21 formed on the push-pull cover 2; the push-pull lid 2 is formed with an anti-slip region 22.

In one embodiment of the invention, the label body 3 is placed in the placing cavity for fixing, so that the convenience of replacing the label is improved, and meanwhile, the safety of the label body 3 is ensured.

The label body 3 comprises a protective shell 31, one side of the protective shell 31 is inwards provided with a sliding cavity, and two opposite side walls of the sliding cavity are fixedly provided with sliding rails; a cover plate 32 is rotatably connected at the cavity opening of the sliding cavity through a rotating shaft; a through hole is formed in one side of the cover plate 32, which is far away from the rotating shaft; a circular groove 33 is also formed on the outer side of the cavity opening of the sliding cavity; a magnetic buckle is arranged in the circular groove 33; the magnetic button is magnetically attracted with the insert block 34; the insert block 34 is disposed outside the cover plate 32 and is disposed in the circular groove 33 through a through hole.

In one embodiment of the present invention, the insert block 34 is provided with a magnetic sheet fixedly connected to the insert block 34, and the magnetic sheet is magnetically attracted with the magnetic button; the magnetic sheet and the magnetic buckle are positioned in the depth of the circular groove 33, so that the radiation intensity of the wireless electromagnetic wave is not influenced; the RFID tag 5 is protected by the tag body 3 as a second protection.

The RFID tag 5 includes a first metal plate 51, a connecting plate 52 fixed to the first metal plate 51, a second metal plate 53 connected to the connecting plate 52, and a circuit board disposed between the connecting plate 52 and the second metal plate 53; the circuit board is provided with a tag antenna 54 and a tag chip 55; the second metal plate 53 is electrically connected to the circuit board; the tag chip 55 is electrically connected to the tag antenna 54 through the circuit board.

The second metal plate 53 is a radiator of the tag antenna 54, and the first metal plate 51 is a reflector of the tag antenna 54.

Further, the second metal plate 53 serves as a radiator of the tag antenna, which can improve the radiation area and radiation intensity of the radio magnetic wave, and the first metal plate 51 serves as a reflector of the tag antenna, which can reflect and superimpose the back lobe level of the tag antenna 54 on the front surface, so that the gain of the tag antenna 54 can be further improved, and the radiation intensity of the radio magnetic wave can be further improved.

The connection plate 52 includes two symmetrical regions, and the second metal plate 53 is provided in two pieces and disposed in the two regions, respectively.

Each region of the connecting plate has a recess in which the second metal plate 53 in the region is located, and the adjacent second metal plates 53 are insulated by the connecting plate 52.

The tag antenna 54 is a microstrip line structure.

The thickness of the tag antenna 54 is less than 1mm.

The material of the first metal plate 51 and the second metal plate 53 includes stainless steel and copper-plated alloy.

In one embodiment of the present invention, the area of the circuit board is fixed, and when the area of the required RFID tag is not much different from the area of the circuit board, the connection board 52 may have only one area, that is, only one second metal plate 53 is fixed on the connection board 52, and the area of the second metal plate 53 is substantially the same as the area of the RFID tag.

Further, however, when the area of the RFID tag required is different from the area of the circuit board, in order to avoid the difference between the area of the second metal plate 53 and the area of the circuit board being large, which results in the uniformity of the electromagnetic waves radiated from the second metal plate 53 being poor, the connection plate 52 is divided into a plurality of regions, and different second metal plates 53 are disposed in different regions, and the second metal plates 53 in different regions are insulated from each other.

In one embodiment of the present invention, on the basis of any embodiment, the material of the metal plates includes stainless steel with corrosion resistance and high compressive strength, and copper-plated ternary alloy, that is, the material of the first metal plate 51 and the second metal plate 53 includes stainless steel, copper-plated ternary alloy, and the like, wherein the stainless steel may be 304 stainless steel; the material of the connection board 52 includes PC (Polycarbonate), but may also include other materials with small dielectric loss, wide temperature range, good weather resistance, and expansion coefficient close to that of metal; the tag antenna 54 is made of metal; the circuit board includes a rigid circuit board such as an epoxy board (FR 4) or ceramics, and a flexible circuit board such as an FPC. The circuit board mainly plays a role in impedance matching.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. An RFID tag, comprising: a label box (1) and a push-pull cover (2); at least one label body (3) is arranged in the label box (1); the label box (1) is connected with the push-pull cover (2) in a sliding manner; a placing cavity is formed in the label box (1), and the label body (3) is arranged in the placing cavity; a main board (4) is arranged in the tag body (3), slide rails are arranged on two sides of the main board (4), and the main board (4) is arranged in the tag body (3) in a sliding manner; the RFID label (5) is placed on the main board (4).

2. An RFID tag as recited in claim 1, wherein: a push-pull groove is formed in the contact surface of the label box (1) and the push-pull cover (2), and the push-pull groove is in sliding connection with a push-pull block (21) formed on the push-pull cover (2); an anti-skid area (22) is formed on the push-pull cover (2).

3. An RFID tag as recited in claim 1, wherein: the label body (3) comprises a protective shell (31), one side of the protective shell (31) is inwards provided with a sliding cavity, and the two opposite side walls of the sliding cavity are fixedly provided with the sliding rails; the cavity opening of the sliding cavity is rotationally connected with a cover plate (32) through a rotating shaft; a through hole is formed in one side, away from the rotating shaft, of the cover plate (32); a circular groove (33) is also formed in the outer side of the cavity opening of the sliding cavity; a magnetic buckle is arranged in the circular groove (33); the magnetic buckle is magnetically attracted with the insert block (34); the insert block (34) is arranged on the outer side of the cover plate (32) and is arranged in the circular groove (33) through the through hole.

4. An RFID tag as recited in claim 1, wherein: the RFID tag (5) comprises a first metal plate (51), a connecting plate (52) fixed on the first metal plate (51), a second metal plate (53) connected with the connecting plate (52) and a circuit board arranged between the connecting plate (52) and the second metal plate (53); the circuit board is provided with a tag antenna (54) and a tag chip (55); the second metal plate (53) is electrically connected with the circuit board; the tag chip (55) is electrically connected with the tag antenna (54) through the circuit board.

5. An RFID tag as recited in claim 4, wherein: the second metal plate (53) is a radiator of the tag antenna (54), and the first metal plate (51) is a reflector of the tag antenna (54).

6. An RFID tag as recited in claim 4, wherein: the connecting plate (52) comprises two symmetrical areas, and the two second metal plates (53) are arranged in the two areas respectively.

7. An RFID tag as recited in claim 6, wherein: each area of the connecting plate (52) has a recess, the second metal plate (53) in the area is located in the recess, and the adjacent second metal plates (53) are insulated by the connecting plate (52).

8. An RFID tag as recited in claim 4, wherein: the tag antenna (54) is a microstrip line structure.

9. An RFID tag as recited in claim 4, wherein: the thickness of the tag antenna (54) is less than 1mm.

10. An RFID tag as recited in claim 4, wherein: the first metal plate (51) and the second metal plate (53) are made of stainless steel and copper-plated alloy.