CN209895366U - RFID label safe to use in microwave oven - Google Patents
RFID label safe to use in microwave oven Download PDFInfo
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- CN209895366U CN209895366U CN201920288833.0U CN201920288833U CN209895366U CN 209895366 U CN209895366 U CN 209895366U CN 201920288833 U CN201920288833 U CN 201920288833U CN 209895366 U CN209895366 U CN 209895366U
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- antenna
- sacrificial conductor
- rfid
- microwave oven
- rfid label
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- 239000004020 conductor Substances 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 3
- 238000004200 deflagration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
An RFID label safe to use in a microwave oven belongs to the technical field of RFID labels. The tag is provided with a sacrificial conductor which is arranged beside, on or under an antenna layer of the tag and is isolated from the antenna layer, so that voltage and current on the antenna can be dispersed, and the RFID IC and the antenna can be protected. The utility model discloses make the RFID label can prop when heating in the microwave oven and hold longer heating time, or allow to use higher microwave heating power, and not just burn out as fast as knowing the RFID label.
Description
Technical Field
The utility model relates to a safe in utilization's RFID label in microwave oven belongs to RFID label technical field.
Background
In a conventional RFID inlay (chip and RFID bonding) having a complete electronic function without a back adhesive layer, called a Dry inlay, a chip is bonded to an antenna through an ACP (anisotropic conductive adhesive). For cost reasons, the chip is small and the contacts are smaller. In the microwave oven, because the antenna metal or conductor is repeatedly acted by microwave, the reciprocating voltage and current in the antenna become larger and larger, and then arc discharge or deflagration is easily generated on the small contact point between the chip and the antenna.
As shown in fig. 1, in the conventional RFID UHF inlay, a dipole antenna is used and a chip is packaged on an antenna wire, and the RFID inlay or the tag having such a structure is attached to an article (mainly food), and when the article is placed in a microwave oven for heating, arc discharge or high-temperature deflagration is easily generated at a contact point between the chip and the antenna due to a resonant voltage and current of the antenna by microwaves, which has a serious safety problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at breaking through the above-mentioned obstacle of using, developing a new product structure, a safe in utilization's RFID label in the microwave oven can make the RFID label paste can bear the longer heating time of microwave oven or stronger power on microwave article.
The technical scheme of the utility model as follows:
an RFID tag safe to use in a microwave oven, characterized in that the tag is provided with a sacrificial conductor, which is placed beside, on or under an antenna layer of the tag, and is isolated from the antenna layer.
Preferably, the sacrificial conductor is a metal foil.
Preferably, the distance between the sacrificial conductor and the antenna layer is 0.06-2 mm.
Preferably, the distance between the sacrificial conductor and the chip of the tag is greater than 5 mm.
Preferably, the sacrificial conductor is one or more of a strip, a discontinuous line segment, a continuous long fold line, a continuous broken line and a continuous point.
The utility model discloses dispose with former antenna isolation (insulating) conductor or metal (sacrifice the conductor promptly, be 60um-2mm with antenna wire near distance, can be the shape of lines or point again with antenna wire near distance by or under the RFID antenna wire of knowing, these sacrifice conductors neither ground connection, also do not switch on with former antenna) as the sacrificial material before the microwave effect causes arc discharge or high heat detonation at the antenna, voltage and electric current on the dispersible antenna, and reach the effect of protection RFID IC and antenna. The utility model discloses make the RFID Label can prop when heating in the microwave oven and hold longer heating time, or allow to use higher microwave heating power, and not be in just burning out very fast like knowing the RFID Label, the utility model is suitable for a UHF, HF, or NFC's RFIDINlay, Label, and tag.
Drawings
FIG. 1 is a diagram illustrating a conventional RFID UHF inlay in the background art;
fig. 2 is a schematic structural diagram of the present invention (the sacrificial conductor is a long strip);
fig. 3 is a schematic structural diagram of the present invention (the sacrificial conductor is a discontinuous line segment);
fig. 4 is a schematic structural diagram of the present invention (the sacrificial conductor is a continuous long broken line);
fig. 5 is a schematic structural diagram of the present invention (the sacrificial conductor is a continuous broken line);
fig. 6 is a schematic structural diagram of the present invention (the sacrificial conductor is a continuous point);
fig. 7 shows the layout of the sacrificial conductor in the dipole antenna circuit according to the present invention;
in the figure: 1 antenna, 2 chips, 3 sacrificial conductors.
Detailed Description
An RFID tag for use in microwave ovens is provided with a sacrificial conductor that is placed beside, on or under the antenna layer of the tag and is isolated from the antenna layer.
The distance between the sacrificial conductor and the antenna circuit is 0.06-2mm, and the sacrificial conductor is not arranged within 5mm from the chip. The sacrificial conductor may be connected into a long strip, or may be formed into a broken line, or may be divided into multiple segments, or may be multiple island-shaped dots.
As shown in fig. 2, the sacrificial conductor is in the shape of a strip; as shown in fig. 3, the sacrificial conductor is a discontinuous line segment; as shown in fig. 4, the sacrificial conductor is a continuous long fold line; as shown in fig. 5, the sacrificial conductor is a continuous broken line; as shown in fig. 6, the sacrificial conductor is a continuous dot. As shown in fig. 7, the sacrificial conductor may be distributed only in a part of the region of the dipole antenna circuit, and the sacrificial conductor is not disposed beside the remaining part of the dipole antenna circuit.
Claims (3)
1. An RFID label safe to use in a microwave oven is characterized in that the label is provided with a sacrificial conductor, and the sacrificial conductor is arranged beside, above or below an antenna layer of the label and is isolated from the antenna layer; the distance between the sacrificial conductor and the antenna layer is 0.06-2mm, and the distance between the sacrificial conductor and the chip of the tag is larger than 5 mm.
2. The RFID tag as recited in claim 1, wherein said sacrificial conductor is a metal foil.
3. The RFID tag of claim 1 or 2, wherein the sacrificial conductor is one or more of a strip, a discontinuous line, a continuous long fold line, a continuous broken line, and a continuous point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288833.0U CN209895366U (en) | 2019-03-07 | 2019-03-07 | RFID label safe to use in microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288833.0U CN209895366U (en) | 2019-03-07 | 2019-03-07 | RFID label safe to use in microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209895366U true CN209895366U (en) | 2020-01-03 |
Family
ID=68997087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920288833.0U Active CN209895366U (en) | 2019-03-07 | 2019-03-07 | RFID label safe to use in microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209895366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023099758A1 (en) | 2021-12-03 | 2023-06-08 | Haydale Graphene Industries Plc | Rfid |
-
2019
- 2019-03-07 CN CN201920288833.0U patent/CN209895366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023099758A1 (en) | 2021-12-03 | 2023-06-08 | Haydale Graphene Industries Plc | Rfid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225009 No. 88 Wuzhou East Road, Yangzhou Economic Development Zone, Jiangsu Patentee after: Yongdao Radio Frequency Technology Co.,Ltd. Address before: 225009 No. 88 Wuzhou East Road, Yangzhou Economic Development Zone, Jiangsu Patentee before: ARIZON RFID TECHNOLOGY (YANGZHOU) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |