Anti-liquid and anti-metal electronic tag

Abstract

The utility model discloses an anti-liquid and anti-metal electronic tag which comprises surface paper, a single-layer structure electronic tag, foam and bottom paper which are sequentially stacked and bonded through an adhesive layer. The electronic tag with the single-layer structure comprises an insulating base material, an antenna layer and a tag chip, an antenna of the antenna layer is in bilateral symmetry, the appearance of the antenna is approximately rectangular, a T-shaped groove is formed in the antenna, and a transverse groove opening of the T-shaped groove is formed in the length direction of the antenna; a longitudinal notch is arranged along the width direction of the antenna and faces a bonding pad area of the antenna, and the tag chip is bonded on the bonding pad area; and the backing paper is release paper. The electronic tag has the characteristics of simple structure, convenience in processing, low cost, easiness in use and the like, can be conveniently attached to the surfaces of various objects, and can support remote reading in liquid and metal surfaces.

Description

Technical Field

[0001] The utility model relates to the field of anti-metal electronic tags, in particular to an anti-liquid and anti-metal electronic tag. Background Art

[0002] Common anti-metal labels include ABS, PCB, epoxy, ceramic, foam, and flexible anti-metal electronic labels (printable), and can be made into various styles and shapes, such as strips, squares, and circles. They are widely used in power asset management, enterprise asset management, equipment management, hazardous materials management, field metal management, pallet management in logistics, asset tracking, and metal shelf management. Foam flexible anti-metal labels are encapsulated with foam cotton substrates. They are small in size, have a long reading and writing distance, and have a certain degree of softness. They can be attached to objects with large curvatures, and are suitable for asset management. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of liquid and metal resistant electronic tag which is easy to process and use. The technical solution is as follows:

[0004] An anti-liquid and anti-metal electronic tag, characterized by comprising a face paper, a single-layer structure electronic tag, foam and a bottom paper which are sequentially stacked and bonded by a glue layer;

[0005] The single-layer structure electronic tag comprises an insulating substrate, an antenna layer and a tag chip;

[0006] The antenna of the antenna layer is bilaterally symmetrical, and its shape is approximately a rectangle, in which a T-shaped slot is provided, and its transverse slot is provided along the length direction of the antenna; its longitudinal slot is provided along the width direction of the antenna and faces the pad area of ​​the antenna;

[0007] The base paper is release paper.

[0008] Furthermore, the length of the transverse slot is one third to one half of the length of the antenna; the width of the transverse slot is one half to two thirds of the width of the antenna; and the width of the longitudinal slot is not greater than the width of the transverse slot.

[0009] Furthermore, the model of the tag chip is UCODE7, UCODE 8 or UCODE 9.

[0010] Furthermore, the size of the antenna is 64mm*6mm.

[0011] Furthermore, the thickness of the foam is 0.5 mm to 1 mm.

[0012] Furthermore, the facial tissue is made of PET material.

[0013] Furthermore, the insulating substrate is made of PET material.

[0014] Furthermore, the thickness of the insulating substrate is less than 0.2 mm.

[0015] The utility model achieves the following technical effects:

[0016] (1) Simple structure, easy processing and low cost;

[0017] (2) Easy to use, can be easily attached to the surface of various objects, and can support long-distance reading in liquids and on metal surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the stacking of the liquid and metal resistant electronic tag of the utility model;

[0019] Figure 2 It is a schematic diagram of the antenna layer structure of the utility model. DETAILED DESCRIPTION

[0020] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 As shown, the utility model provides an anti-liquid and anti-metal electronic tag. It is composed of face paper 9, bottom paper 1, foam 3 and single-layer structure electronic tag, etc. The face paper 9, single-layer structure electronic tag, foam 3 and bottom paper 1 are stacked in sequence and bonded by adhesive layers 2, 4 and 8. Among them, the single-layer structure electronic tag is composed of an insulating substrate 5, an antenna layer 6 and a tag chip 7, etc. The single-layer structure is different from the double-layer structure of the traditional anti-metal tag, which effectively reduces the label cost and processing technology intensity. The antenna layer 6 adopts metal materials such as aluminum and copper to form the antenna of the electronic tag by etching and other methods. The tag chip 7 is bonded to the antenna pad by conductive materials such as conductive glue.

[0023] The antenna of this pre-laminated tag adopts a special pattern design, such as Figure 2 shown.

[0024] The antenna uses a T-slot structure to integrate the antenna arm and the feed ring. Specifically, the antenna 610 is a bilaterally symmetrical structure, and its shape is approximately a rectangle. A T-slot 620 is set in the middle of the antenna 610. The transverse notch 621 of the T-slot 620 is set along the length direction of the antenna, and the longitudinal notch 622 is set along the width direction of the antenna 610, facing the pad area 611 of the antenna 610. The pad area 611 is the designated bonding place of the tag chip 7.

[0025] The T-slot structure facilitates impedance matching and can effectively extend the current path. By adjusting the ratio of the horizontal and vertical parts of the T-slot, the inductive reactance characteristics of the antenna can be changed, and the capacitive reactance of different chips can be matched to achieve a conjugate relationship, so that the chip can obtain maximum power and effectively realize the miniaturization of the antenna. The small slot area and large antenna area are conducive to improving the radiation efficiency and gain of the antenna.

[0026] exist Figure 2 In the T-slot, the T-slot includes a transverse slot arranged along the length direction of the tag and a longitudinal slot arranged along the width direction of the tag. The transverse slot length L2 is between one third and one half of the antenna length L1; the transverse slot width H2 is between one half and two thirds of the antenna width H1; the longitudinal slot length L3 is usually as large as possible, 0.6mm to 1mm smaller than the antenna width H1.

[0027] Metal has a great impact on RF signals. The metal contact surface reflects the RF signal. The foam allows a certain distance between the antenna and the metal contact surface, improving the performance of the tag on metal. If there is no foam, when the antenna is completely attached to the metal surface, the RF signal will be completely shielded by the metal contact surface. In addition, the foam has a certain degree of softness and can be attached to objects with large curvatures. Single-layer labels will make the labels more flexible.

[0028] In this embodiment, the tag chip can use UHF radio frequency chips such as UCODE7, UCODE 8 or UCODE 9 of NXP, and work in the UHF frequency band of 902MHz-928MHz. The size of the electronic tag is 70mm*10mm, of which the size of the antenna is 64mm*6mm, the thickness of the foam is preferably 0.5mm to 1mm, the insulating substrate in the single-layer structure electronic tag uses soft PET material, and its thickness is not more than 0.2mm, the antenna layer uses metal materials such as aluminum and copper, the surface paper uses waterproof materials such as PET, and the bottom paper uses glassine bottom paper (release paper). When using, remove the label from the bottom paper and stick it on the object to be attached. Using a handheld device for testing, the label can be read in liquids (mineral water and toiletries) >2.8m, and the reading distance on the metal surface is >0.8m.

[0029] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A liquid and metal resistant electronic tag, characterized in that: It includes a face paper, a single-layer structure electronic label, foam and a backing paper which are stacked in sequence and bonded by a glue layer; The single-layer structure electronic tag comprises an insulating substrate, an antenna layer and a tag chip; the antenna of the antenna layer is bilaterally symmetrical, and its shape is approximately a rectangle, wherein a T-shaped slot is arranged, and its transverse slot is arranged along the length direction of the antenna; its longitudinal slot is arranged along the width direction of the antenna and faces the pad area of ​​the antenna, and the tag chip is bonded to the pad area; The base paper is release paper.

2. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The length of the transverse notch is one third to one half of the length of the antenna; the width of the transverse notch is one half to two thirds of the width of the antenna.

3. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The model of the tag chip is UCODE7, UCODE 8 or UCODE 9.

4. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The size of the antenna is 64mm*6mm.

5. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The thickness of the foam is 0.5 mm to 1 mm.

6. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The facial tissue is made of PET material.

7. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The insulating substrate is made of PET material.

8. The liquid-resistant and metal-resistant electronic tag according to claim 1, characterized in that: The thickness of the insulating substrate is less than 0.2 mm.

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