Novel ultra-high frequency electronic tag for transformer

Abstract

The invention provides a novel ultra-high frequency electronic tag 50 for a transformer, which comprises double-layer filtering oil 54, a main antenna circuit 55, a main antenna dielectric part 51, a bottom antenna circuit 56, an auxiliary antenna dielectric part 52, a conductive connection part 53, an integrated circuit chip 59, and tag bottom filtering oil 58, wherein the double-layer filtering oil 54 covers the whole main antenna circuit 55; the main antenna circuit 55 is located at the top part of the tag, and the main antenna circuit 55 is processed on the main antenna dielectric part 51 through etching technology; the bottom antenna circuit 56 is located below the main antenna dielectric part and above the auxiliary antenna dielectric part 52; the main antenna circuit 55 is connected with the bottom antenna circuit 56 via the conductive connection part 53 of the tag; a RFID chip 59 is packaged on the bottom antenna circuit 56; and a hole, right below the RFID chip 59, is opened in the auxiliary antenna dielectric part 52, and the packaging position of the RFID chip 59 is exposed from the below.

Description

technical field [0001] The present invention relates to the application of RFID (radio frequency identification) electronic tags, in particular to an electronic tag that can be applied to the surface of transformers of different materials. The upper surface of the electronic tag involved in the present invention is flat and can be used for laser coding and laser marking , at the same time, when it is installed on transformers of different materials, it still has very stable radio frequency reading and writing performance. Background technique [0002] With the development of the Internet of Things, RFID electronic tags with UHF functions are showing their unique functions and advantages in more and more fields. With the rapid development of smart grid, the application of RFID tags in smart grid is rapidly promoted. [0003] There are many assets involved in the smart grid, among which the transformer is one of its assets. At home and abroad, there are many transformer manu...

AI Technical Summary

Problems solved by technology

[0005] The first way is to use metal nameplate labels, such as Figure 4 As shown in (a), its surface can use laser marking to engrave the relevant information of the transformer on the metal nameplate. The advantages of this metal nameplate are simple processing, stable appearance, smooth surface, and information can be easily used. Laser marking on the metal nameplate has the disadvantage of low labor efficiency when reading the information on the metal nameplate during manual inventory or inspection

[0006] The second way is to use a printable RFID electronic label with a waterproof function and a reverse packaging process, such as Figure 4 As shown in (b), its surface can use a printer to pre-print the relevant information of the transformer on the surface of the electronic label, and attach the electronic label to the transformer. The advantage of this electronic label is manual inventory or reading electronic labels When reading and writing information, the operation is very convenient and efficient through the electronic tag reading and writing equipment. The disadvantage is that when the electronic tag is attached to different manufacturers and different types of transformers, the difference in radio frequency performance is relatively large, and its universal Very poor performance and cannot be generalized

[0007] The electronic label applied to the transformer needs to solve three major technical problems at the same time: the first problem is that the surface of the electronic label needs to be flat to facilitate laser marking operations, and the marking information needs to be clear and durable; the second problem is that the electronic label is placed on the transformer. Installed in the casting process, the electronic tag must be able to reliably withstand the high temperature during the processing of the transformer; the third problem is that the structure and material of the transformer vary widely. When the electronic tag is installed, the radio frequency performance of the electronic tag is required to be stable and consistent. , cannot change significantly with the difference in the structure and material of the transformer

[0008] In order to solve the above three technical problems, there are currently three methods of electronic tag research and samples. The first method is to use a high temperature resistant plastic shell to encapsulate a high temperature resistant electronic tag, such as Figure 4 As shown in (c), it has a flat upper surface, which is convenient for laser marking, but its disadvantage is that when the electronic tag is installed on a transformer of different materials and structures, the radio frequency performance of the electronic tag will vary greatly , the versatility of the electronic label is very poor; the second way is to use the electronic label with the radio frequency chip on the front of the electronic label that can be used on the metal surface, such as Figure 4 As shown in (d), the advantage is that when the electronic tag is installed on transformers of different materials and structures, the radio frequency performance of the electronic tag will be relatively stable, and its versatility is good. The disadvantage is that the electronic tag cannot solve the front surface of the electronic tag. Completely flat and suitable for laser marking requirements; the third way is to use electronic tags with frequency chips on the side of the tag that can be used on metal surfaces, such as Figure 4 As shown in (e), the advantage of this kind of electronic label is that it can solve the problem that the surface of the electronic label is flat and convenient for laser marking. It is relatively stable and has good versatility, but its disadvantage is poor high temperature resistance, which will lead to poor RF performance in batches or weakened RF performance reliability during high temperature processing

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