CN104463310A - Embedded annular radio frequency identification label - Google Patents

Abstract

The present invention provides an embedded annular radio frequency identification tag, comprising an annular tag antenna and an radio frequency identification chip. The annular tag antenna comprises: an annular substrate having an elastic section and a circuit configuration section; an upper conductive portion disposed on an upper surface of the circuit configuration section; an impedance adjustment portion disposed on the upper surface and spaced apart from the upper conductive portion; and a lower conductive portion disposed on a lower surface of the circuit configuration section and electrically connected to the upper conductive portion and the impedance adjustment portion. The two ends of the radio frequency identification chip are electrically connected to the upper conductive portion and the impedance adjustment portion, respectively. The present invention can enable the tag to be quickly and firmly clamped in a tiny mounting hole of a metal object by controlling the deformation of the elastic section of the annular substrate.

Description

Embedded Ring RFID Tag

technical field

The invention relates to a radio frequency identification tag, in particular to an embedded ring radio frequency identification tag.

Background technique

In the steel production line, rolls are necessary and consumable equipment. Each roll has its own roll number for easy identification, and the roll number is usually drilled on the end face of the roll before leaving the factory for easy use. Those who can effectively identify when using. However, after the above-mentioned roll is used on-line, the end face engraved with the roll number is often covered by oil stains, water stains or paint for identification, so that the roll number is difficult to identify.

The RFID system has been widely used in various industries in recent years because of its fast reading speed and easy automation. The radio frequency identification tag in the radio frequency identification system is very suitable to be installed on the end face of the roll for identification of the roll. However, how to quickly and firmly fix the RFID tag on the end face of the roll is a very important issue at present, especially when the end face diameter of the roll is less than 20 mm, it is also necessary to quickly and firmly fix the RFID tag on the end face of the roll. will become more difficult.

Therefore, it is necessary to provide an innovative and progressive embedded ring-shaped RFID tag to solve the above problems.

Contents of the invention

The technical problem to be solved by the present invention is to provide an embedded annular radio frequency identification tag to solve how to quickly and firmly fix the radio frequency identification tag on the end face of the roll.

The technical solution of the present invention is to provide an embedded ring radio frequency identification tag, including: a ring tag antenna and a radio frequency identification chip. The loop tag antenna includes: an annular substrate with an elastic section and a line configuration section, the line configuration section has an upper surface and a lower surface; an upper conductive part is arranged on the upper surface of the line configuration section ; an impedance adjustment part, arranged on the upper surface of the line configuration section, and spaced apart from the upper conductive part; and a lower conductive part, arranged on the lower surface of the line configuration section, and electrically connected to the upper conductive part and the impedance adjustment unit. Two ends of the radio frequency identification chip are respectively electrically connected to the upper conductive part and the impedance adjustment part.

The present invention also provides an embedded ring-shaped radio frequency identification tag, including: a ring-shaped tag antenna, at least including a ring-shaped substrate, an upper conductive part and a lower conductive part, the ring-shaped substrate has an elastic section and a line configuration section, The upper conductive part and the lower conductive part are arranged on the line configuration section; and a radio frequency identification chip is electrically connected to the upper conductive part.

The present invention can control the deformation of the elastic section of the annular base plate, so that the label can be quickly and firmly locked in the tiny installation hole of the metal object. That is, applying pressure to the elastic section can reduce the outer diameter of the annular substrate, so that the embedded annular RFID tag can be embedded in the tiny mounting hole of the metal object, and the elastic section will rebound after the pressure is released Expansion force, so that the embedded ring radio frequency identification tag is quickly and firmly clamped in the installation hole. When it is desired to take out the embedded ring-shaped radio frequency identification tag from the installation hole, the embedded ring-shaped radio frequency identification tag can be easily taken out only by applying pressure to the elastic section.

In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the contents of the description, and in order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the following special examples of preferred embodiments are given together with the accompanying drawings , detailed below.

Description of drawings

Fig. 1 shows the top structural view of the embedded circular radio frequency identification tag of the first embodiment of the present invention;

Fig. 2 shows the structural bottom view of the embedded circular radio frequency identification tag of the first embodiment of the present invention;

Fig. 3 shows the schematic diagram before the embedded circular radio frequency identification tag of the present invention is combined with the metal object with mounting holes;

Fig. 4 shows the schematic diagram after the embedded circular radio frequency identification tag of the present invention is combined with a metal object with mounting holes;

Fig. 5 shows the relationship between different cut-off points of the impedance adjustment part and different corresponding cut-off points of the extension impedance adjustment part of the present invention and the operating frequency;

FIG. 6 shows a schematic structural diagram of an embedded circular radio frequency identification tag according to a second embodiment of the present invention;

FIG. 7 shows a schematic structural diagram of an embedded ring-shaped radio frequency identification tag according to a third embodiment of the present invention;

FIG. 8 shows a schematic structural diagram of an embedded ring-shaped radio frequency identification tag according to a fourth embodiment of the present invention; and

FIG. 9 shows a schematic structural diagram of an embedded circular radio frequency identification tag according to a fifth embodiment of the present invention.

Symbol Description:

1 embedded ring RFID tag

10 loop tag antenna

11 Ring base plate

111 Elastic section

1110 S-shaped curved structure

1111 Convex structure

1112 connecting arm

1113 hook arm

112 line configuration section

112a upper surface

112b lower surface

112c inner edge

112d Outer edge

113 The first via hole

114 Second via hole

12 Upper conductive part

12a first end

12b second end

13 Impedance adjustment part

14 Extension impedance adjustment part

15 lower conductive part

20 radio frequency identification chip

30 metal objects

30a end face

31 mounting holes

C1 cut-off point

C2 corresponding cut-off point

D1 The outer diameter of the annular substrate

D2 The diameter of the mounting hole

G gap

G1 separation gap

G2 Adjust the gap

Detailed ways

Fig. 1 shows the structural top view of the embedded circular radio frequency identification tag according to the first embodiment of the present invention. Fig. 2 shows a bottom view of the structure of the embedded circular radio frequency identification tag according to the first embodiment of the present invention. With reference to FIG. 1 and FIG. 2 , the embedded circular radio frequency identification tag 1 of the present invention includes a circular tag antenna 10 and a radio frequency identification chip 20 .

The loop tag antenna 10 includes a loop substrate 11 , an upper conductive portion 12 , an impedance adjustment portion 13 , an extended impedance adjustment portion 14 and a lower conductive portion 15 .

The annular substrate 11 has an elastic section 111 and a circuit configuration section 112 . In this embodiment, the elastic section 111 is composed of a plurality of S-shaped bending structures 1110 connected in series. The length of the line configuration section 112 is greater than the length of the elastic section 111, and the line configuration section 112 has an upper surface 112a, a lower surface 112b, an inner edge 112c, an outer edge 112d, a first conductive hole 113 and a second via hole 114 .

The upper conductive portion 12 is disposed on the upper surface 112 a of the line configuration section 112 , and the upper conductive portion 12 is disposed along the inner edge 112 c of the line configuration section 112 . In this embodiment, the upper conductive portion 12 has a first end 12a and a second end 12b, and the second end 12b is opposite to the first end 12a. Preferably, the first via hole 113 of the line configuration section 112 is formed at the first end 12 a of the upper conductive portion 12 .

The impedance adjustment part 13 is disposed on the upper surface 112 a of the line configuration section 112 , and the impedance adjustment part 13 is disposed along the inner edge 112 c of the line configuration section 112 . In this embodiment, the impedance adjustment portion 13 is spaced apart from the upper conductive portion 12 , and there is a separation gap G1 between the impedance adjustment portion 13 and the upper conductive portion 12 . Preferably, the length of the impedance adjustment portion 13 is smaller than the length of the upper conductive portion 12 , and the area of the impedance adjustment portion 13 is also smaller than the area of the upper conductive portion 12 .

In addition, the impedance adjustment part 13 has at least one cut-off point C1, and the at least one cut-off point C1 corresponds to a specific operating frequency band. In this embodiment, the impedance adjustment unit 13 has multiple cut-off points C1, and each cut-off point C1 corresponds to a different operating frequency band, such as 865-868MHz (applicable to Europe), 902-968MHz (applicable to the United States), 922~928MHz (applicable to Taiwan) and 950~956MHz (applicable to Japan), etc. Preferably, these cutting points C1 are in the shape of notches to facilitate cutting.

The extended impedance adjustment part 14 is mainly used to assist the impedance adjustment part 13 to perform precise impedance adjustment, so that the loop tag antenna 10 can be applied to various operating frequency bands. In this embodiment, the extension impedance adjustment part 14 corresponds to the impedance adjustment part 13 and is arranged at a distance from the impedance adjustment part 13. Preferably, the extension impedance adjustment part 14 is parallel to the impedance adjustment part 13, The length of the extension impedance adjustment part 14 is greater than the length of the impedance adjustment part 13 . In addition, there is an adjustment gap G2 between the extension impedance adjustment part 14 and the impedance adjustment part 13 , preferably, the adjustment gap G2 communicates with the separation gap G1 .

In addition, in this embodiment, the extension impedance adjustment portion 14 is disposed along the outer edge 112 d of the line configuration section 112 , and one end of the extension impedance adjustment portion 14 is connected to the upper conductive portion 12 . Preferably, the one end of the extended impedance adjusting portion 14 is connected to the second end 12 b of the upper conductive portion 12 .

In addition, in order to accurately control the operating frequency band of the loop tag antenna 10, the extended impedance adjustment part 14 may have at least one corresponding cut-off point C2, and the at least one corresponding cut-off point C2 corresponds to the at least one cut-off point C2 of the impedance adjustment part 13. Cut off point C1. In this embodiment, the extension impedance adjusting portion 14 has a plurality of corresponding cut-off points C2 , and each of the corresponding cut-off points C2 corresponds to each of the cut-off points C1 of the impedance adjusting portion 13 . Preferably, these corresponding cutting points C2 are also in the shape of notches, so as to facilitate cutting together with the corresponding cutting points C1.

The lower conductive portion 15 is disposed on the lower surface 112 b of the line configuration section 112 and is electrically connected to the upper conductive portion 12 and the impedance adjustment portion 13 . In this embodiment, the lower conductive portion 15 is electrically connected to the upper conductive portion 12 and the impedance adjustment portion 13 through the first via hole 113 and the second via hole 114 of the line configuration section 112 respectively, and also That is, the upper conductive portion 12 and the lower conductive portion 15 are connected through the first via hole 113 , and the impedance adjustment portion 13 and the lower conductive portion 15 are connected through the second via hole 114 . In addition, preferably, the area of the lower conductive portion 15 is larger than the area of the upper conductive portion 12 .

Two ends of the RFID chip 20 are respectively electrically connected to the upper conductive portion 12 and the impedance adjustment portion 13 , and the RFID chip 20 corresponds to the separating gap G1 .

Referring to FIG. 3 , it is a schematic diagram showing the embedded circular radio frequency identification tag of the present invention before it is combined with a metal object with mounting holes. The embedded circular radio frequency identification tag 1 of the present invention is suitable for a metal object 30, preferably, the metal object 30 is a roll. In addition, the metal object 30 has an end surface 30a and a mounting hole 31 formed in the end surface 30a. In order to make the embedded annular radio frequency identification tag 1 fast and firmly clamped in the installation hole 31 of the metal object 30, in this embodiment, the outer diameter D1 of the annular substrate 11 is larger than the diameter D2 of the installation hole 31 . Preferably, the outer diameter D1 of the annular substrate 11 is slightly larger than the diameter D2 of the mounting hole 31 .

FIG. 4 shows a schematic diagram of the combination of the embedded circular radio frequency identification tag of the present invention and the metal object with mounting holes. Referring to Figure 3 and Figure 4, by applying pressure to the elastic section 111, these S-shaped curved structures 1110 can be deformed to reduce the outer diameter D1 of the annular substrate 11, at this time, the embedded annular RFID tag 1 can be embedded in the mounting hole 31 of the metal object 30, and after the pressure is released, the S-shaped bending structures 1110 of the elastic section 111 will generate a rebound expansion force, so that the embedded annular RFID tag 1 can quickly It is fixed firmly in the mounting hole 31 . When it is desired to take out the embedded ring-shaped RFID tag 1 from the mounting hole 31 , the embedded ring-shaped RFID tag 1 can be easily removed only by applying pressure to the elastic section 111 .

According to the present invention, the embedded ring-shaped RFID tag 1 can be quickly and firmly locked in the mounting hole 31 of the metal object 30 by controlling the deformation of the elastic section 111 of the ring-shaped substrate 11 .

FIG. 5 shows the relationship between different cut-off points of the impedance adjustment part and different corresponding cut-off points of the extension impedance adjustment part and the operating frequency of the present invention. 1 and 5, the present invention can ensure that the loop tag antenna 10 can be compatible with the radio frequency identification chip 20 by selecting the cut-off point C1 of the impedance adjustment part 13 and the corresponding cut-off point C2 of the extension impedance adjustment part 14. Achieve impedance matching and be suitable for the selected operating frequency band.

Referring to FIG. 6 , it is a schematic diagram showing the structure of the embedded circular radio frequency identification tag according to the second embodiment of the present invention. The structural features of the second embodiment of the present invention are basically the same as those of the first embodiment, the only difference being that the elastic section 111 is composed of a circular convex structure 1111 and two connecting arms 1112, the circular convex structure 1111 Both ends are respectively connected to one end of each connecting arm 1112 , and the other end of each connecting arm 1112 is connected to the line configuration section 112 . In this embodiment, by controlling the deformation of the convex structure 1111 of the elastic section 111 , the embedded ring-shaped RFID tag 1 can also be quickly installed.

Referring to FIG. 7 , it is a schematic diagram showing the structure of the embedded circular radio frequency identification tag according to the third embodiment of the present invention. The structural features of the third embodiment of the present invention are basically the same as those of the second embodiment, and the only difference lies in the size of the circular convex structure 1111 .

Referring to FIG. 8 , it is a schematic diagram showing the structure of the embedded ring-shaped RFID tag according to the fourth embodiment of the present invention. The structural features of the fourth embodiment of the present invention are basically the same as those of the second embodiment, the only difference being that the shape of the convex structure 1111 is different and the connecting arms 1112 are curved.

Referring to FIG. 9 , it is a schematic diagram showing the structure of the embedded circular radio frequency identification tag according to the fifth embodiment of the present invention. The structural features of the fifth embodiment of the present invention are basically the same as those of the first embodiment, the only difference being that the elastic section 111 is composed of two hook-shaped arms 1113, and one end of the two hook-shaped arms 1113 is connected to the circuit configuration section 112 , and there is a gap G between the two hook arms 1113 . In this embodiment, the elastic section 111 can also be deformed by adjusting the gap G, and the embedded ring-shaped RFID tag 1 can be quickly installed.

The above-mentioned embodiments are only for illustrating the principles and functions of the present invention, and do not limit the present invention. Therefore, those who are skilled in this technology can modify and change the above-mentioned embodiments without departing from the spirit of the present invention. The scope of rights of the present invention should be listed in the claims.

Claims (20)

1. an embedded toroidal RFID tag, is characterized in that, described embedded toroidal RFID tag comprises:

One loop tag antenna, comprising:

One annular base plate, have an elastic segments and a line configuring section, this line configuring section has a upper surface and a lower surface;

Conductive part on one, is arranged at the upper surface of this line configuring section;

One impedance adjustment part, is arranged at the upper surface of this line configuring section, and with this on conductive part be set in distance; And

Conductive part once, is arranged at the lower surface of this line configuring section, and is electrically connected conductive part and this impedance adjustment part on this; And

One radio-frequency (RF) identification chip, its two ends are electrically connected conductive part and this impedance adjustment part on this respectively.

2. embedded toroidal RFID tag according to claim 1, is characterized in that, this elastic segments is in series by multiple S shape warp architecture.

3. embedded toroidal RFID tag according to claim 1, it is characterized in that, this elastic segments is made up of a round convex shape structure and two linking arms, these round convex shape structure two ends connect one end of each described linking arm respectively, and the other end of each described linking arm connects this line configuring section.

4. embedded toroidal RFID tag according to claim 3, is characterized in that, each described linking arm is in bending.

5. embedded toroidal RFID tag according to claim 1, is characterized in that, this elastic segments is made up of two hook-shaped arms, and one end of this two hook-shaped arm connects this line configuring section, and have a gap between this two hook-shaped arm.

6. embedded toroidal RFID tag according to claim 1, it is characterized in that, this line configuring section has one first via and one second via, this first via connects conductive part and this lower conductive part on this, and this second via connects this impedance adjustment part and this lower conductive part.

7. embedded toroidal RFID tag according to claim 1, is characterized in that, this line configuring section has an inner edge and an outer rim, and on this, conductive part and this impedance adjustment part arrange along this inner edge.

8. embedded toroidal RFID tag according to claim 1, it is characterized in that, described embedded toroidal RFID tag separately comprises an extension impedance adjustment part, this extension impedance adjustment part is to should impedance adjustment part, and be set in distance with this impedance adjustment part, one end of this extension impedance adjustment part connects conductive part on this.

9. embedded toroidal RFID tag according to claim 8, is characterized in that, this line configuring section has an inner edge and an outer rim, and this extension impedance adjustment part arranges along this outer rim.

10. embedded toroidal RFID tag according to claim 8, is characterized in that, this extension impedance adjustment part is parallel with this impedance adjustment part.

11. embedded toroidal RFID tag according to claim 8, is characterized in that, have an adjusting play between this extension impedance adjustment part and this impedance adjustment part.

12. embedded toroidal RFID tag according to claim 11, is characterized in that, this impedance adjustment part and this has a separation gap between conductive part, and this separation gap is communicated with this adjusting play.

13. embedded toroidal RFID tag according to claim 8, it is characterized in that, this impedance adjustment part has at least one cut-out point, this extension impedance adjustment part has at least one corresponding cut-out point, and described at least one corresponding cut-out point of this extension impedance adjustment part is to should described at least one cut-out point of impedance adjustment part.

14. embedded toroidal RFID tag according to claim 8, is characterized in that, the length of this extension impedance adjustment part is the length being greater than this impedance adjustment part.

15. embedded toroidal RFID tag according to claim 1, is characterized in that, this impedance adjustment part has at least one cut-out point, and described at least one cut-out point is a corresponding specific operation frequency range.

16. embedded toroidal RFID tag according to claim 1, is characterized in that, the length of this impedance adjustment part is the length being less than conductive part on this.

17. embedded toroidal RFID tag according to claim 1, is characterized in that, the area of this impedance adjustment part is the area being less than conductive part on this.

18. embedded toroidal RFID tag according to claim 1, is characterized in that, the area of this lower conductive part is the area being greater than conductive part on this.

19. embedded toroidal RFID tag according to claim 1, is characterized in that, the length of this line configuring section is the length being greater than this elastic segments.

20. 1 kinds of embedded toroidal RFID tag, is characterized in that, described embedded toroidal RFID tag comprises:

One loop tag antenna, at least to comprise in an annular base plate, a conductive part and once conductive part, this annular base plate has an elastic segments and a line configuring section, and on this, conductive part and this lower conductive part are arranged at this line configuring section; And

One radio-frequency (RF) identification chip, is electrically connected conductive part on this.