CN201489564U - A miniature RFID glass tube electronic tag - Google Patents

Abstract

The utility model discloses a micro RFID glass tube electronic tag, comprising an RFID chip with a built-in capacitor sealed in a tempered glass tube, a coil electrically connected to the RFID chip, and the coil being wound on a magnetic core to form a tag antenna; since the RFID chip has a built-in capacitor and does not need to be added externally, the volume is smaller, and the tag antenna is formed by a coil wound on the magnetic core, which greatly improves the inductive sensitivity of the electronic tag, greatly enhances the recognition distance and reliability of the RFID micro electronic tag under the same conditions, and is more practical, and is a real micro electronic tag.

Description

A miniature RFID glass tube electronic tag

technical field

The utility model relates to an electronic label, in particular to a non-contact electronic label packaged in a glass tube.

Background technique

With the comprehensive popularization of RFID non-contact identification technology, the types of RFID electronic tags on the market tend to be more and more multi-band, and their appearance forms are becoming more and more diverse. Due to the continuous progress of RFID technology, the production and development of RFID electronic tags are becoming more and more mature, and have been widely used in various industries. However, due to the limitations of its own appearance, shape and physical size, traditional RFID electronic tag cards cannot be applied to all occasions, such as commodity anti-counterfeiting, pet identification, special occasions, etc., and must be used in a relatively small size Small RFID electronic tags, especially micro RFID electronic tags.

The Chinese patent number is ZL200620062913.7, and the utility model patent of "a small electronic label" with the publication number 2938228 discloses an electronic label. On the surface, the two ends of the chip capacitor are connected to the pins of the IC bare chip through the connecting wire, and the insulating protective glue is bonded on the chip capacitor, and the insulating protective glue wraps the entire integrated circuit bare chip in it, and the circuit bare chip Wrapped in it, the chip capacitor and the integrated circuit die form a whole. The two ends of the antenna coil are connected to the two ends of the chip capacitor. The electronic tag encapsulates all components in a glass with an inner diameter of less than two millimeters. In the tube, it overcomes the defect that ordinary RFID electronic tags are too large in size and cannot be used in some places with strict volume requirements. As a branch of the RFID family, this miniature electronic tag is different from other types of non-contact smart card products. A large number of promotions in various industries have played a very good role in expansion and complementarity. However, due to the existence of a chip capacitor in the electronic tag, the volume is not small enough, especially the electronic tag does not use a micro-magnetic rod with high magnetic permeability. , its sensing sensitivity is not high, and the recognition distance is very limited.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a miniature RFID glass tube electronic tag with small volume, high sensitivity and long recognition distance.

The technical scheme that the utility model solves its technical problem adopts is:

A miniature RFID glass tube electronic tag includes an RFID chip with a built-in capacitance encapsulated in a tempered glass tube, and a coil electrically connected to the RFID chip. The coil is wound on a magnetic core to form a tag antenna.

As a further improvement of the utility model, the RFID chip and the coil are welded by a straight state process; the tempered glass tube is filled with a sealant.

The beneficial effects of the utility model are: the RFID chip adopted in the utility model has a built-in capacitor, which does not need to be added, so the volume is smaller, and the tag antenna is formed by a coil wound on a magnetic core, which greatly improves the induction sensitivity of the electronic tag. The identification distance and reliability of the RFID miniature electronic tag under the same circumstances are greatly enhanced, and the practicability is also wider, which belongs to the real miniature electronic tag.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural representation of the utility model.

Detailed ways

Referring to Fig. 1, a miniature RFID glass tube electronic tag includes an RFID chip 3 with a built-in capacitor encapsulated in a toughened glass tube 5, and a coil 2 made of high-strength pure copper enameled wire electrically connected to the RFID chip 3. The RFID chip has a built-in capacitor and does not need to be added. Therefore, it is smaller in size and belongs to a real miniature electronic tag; the coil 2 is wound on a high-permeability magnetic core 1 to form a tag antenna, which greatly improves the induction sensitivity of the electronic tag. Under the same circumstances, the recognition distance and reliability of RFID miniature electronic tags are greatly enhanced, and the practicability is also more extensive.

The RFID chip 3 and the coil 2 of the utility model are welded by straight state technology, the connection is reliable, the quality is guaranteed, and the structure is more reasonable; the toughened glass tube 5 is filled with a green and environmentally friendly professional electronic sealant 4, and the sealant 4 will be The magnetic core 1, the coil 2 and the direct connection between the coil 2 and the RFID chip 3 are sealed by means of seamless filling, and the structure is more solid. After the glue is poured, the other end of the tempered glass tube 5 is sintered and sealed.

The above are only preferred specific implementations of the utility model, and cannot limit the protection scope of the utility model. As long as the modifications and changes made according to the protection scope of the utility model still belong to the scope covered by the invention.

Claims (3)

1. Micro RF ID glass tube electronic tag, comprise that dress is enclosed in the RFID chip (3) of the built-in capacitance in the tempered glass pipe (5), the coil (2) that is electrically connected with RFID chip (3) is characterized in that described coil (2) is wound on a magnetic core (1) and goes up the formation label antenna.

2. a kind of Micro RF ID glass tube electronic tag according to claim 1 is characterized in that described RFID chip (3) and coil (2) adopt the technology welding of straight nation.

3. a kind of Micro RF ID glass tube electronic tag according to claim 1 is characterized in that being filled with in the described tempered glass pipe (5) fluid sealant (4).