Voltage-resistant RFID electronic tag

Abstract

The utility model belongs to the technical field of RFID electronic tags, and discloses a pressure-resistant RFID electronic tag, which comprises a sealed cavity formed by an arched upper shell and a planar lower shell, cross-shaped elastic support columns are symmetrically arranged in the sealed cavity, and four ends of each cross-shaped elastic support column are connected with the wall of the sealed cavity; an RFID chip module is installed on the inner side of the cross-shaped elastic supporting column in a suspended mode through a magnetic suspension assembly, a buffer gap is reserved between the RFID chip module and the sealing cavity, a plurality of concentric circle protruding rings used for pressure dispersion are installed at the bottom of the plane lower shell, a plurality of reinforcing ribs used for pressure dispersion are installed at the bottom of the plane lower shell, and the cross-shaped elastic supporting column is arranged in the plane lower shell. The reinforcing ribs are located on the outer sides of the concentric circle convex rings, the cross-shaped elastic supporting columns are hollow silica gel columns, the cross-shaped elastic supporting columns are filled with non-Newtonian fluid materials, and the non-Newtonian fluid materials are shear thickening fluid. According to the utility model, not only can the label be kept light and thin, but also multidirectional pressure resistance can be realized.

Description

Technical Field

[0001] This utility model relates to the field of RFID electronic tag technology, and in particular to a pressure-resistant RFID electronic tag. Background Technology

[0002] Pressure-resistant RFID tags are radio frequency identification tags that can maintain normal operation under high pressure, high temperature, high humidity or other extreme physical environments. These tags are usually enhanced in terms of durability and stability through special design and material selection.

[0003] Traditional RFID tags are easily damaged by external pressure in industrial warehousing and logistics transportation scenarios (such as being crushed by stacked goods or run over by forklifts). Existing technologies mainly enhance pressure resistance through the following methods:

[0004] 1) Material reinforcement: Use a thicker PCB substrate or metal casing, but this will increase cost and weight;

[0005] 2) Encapsulation protection: Epoxy resin potting is used, but it affects signal transmission efficiency. However, the above technology has problems such as insufficient resistance to multi-directional pressure and conflict between mechanical structure and antenna performance. Therefore, we propose a pressure-resistant RFID electronic tag. Utility Model Content

[0006] In view of the problems of insufficient resistance to multidirectional pressure and conflict between mechanical structure and antenna performance in the existing technology, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a pressure-resistant RFID electronic tag, which aims to achieve multi-directional pressure resistance while maintaining the tag's thinness through a unique mechanical structure design.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A pressure-resistant RFID electronic tag includes a sealed cavity consisting of an arched upper shell and a flat lower shell. The sealed cavity is provided with symmetrically arranged cross-shaped elastic support columns, and the four ends of the cross-shaped elastic support columns are connected to the wall of the sealed cavity.

[0010] An RFID chip module is suspended on the inner side of the cross-shaped elastic support column by a magnetic levitation component, and a buffer gap is left between the RFID chip module and the sealed cavity.

[0011] As a technical solution for a pressure-resistant RFID electronic tag according to the present invention, the bottom of the flat lower housing is provided with a plurality of concentric circular protrusions for pressure dispersion, and the bottom of the flat lower housing is provided with a plurality of reinforcing ribs for pressure dispersion, and the reinforcing ribs are located outside the concentric circular protrusions, so as to disperse vertical pressure and prevent the tag from sliding and wearing during transportation.

[0012] As a technical solution for a pressure-resistant RFID electronic tag according to this utility model, the cross-shaped elastic support column is a hollow silicone column, and the interior of the cross-shaped elastic support column is filled with a non-Newtonian fluid material. The non-Newtonian fluid material is a shear-thickening fluid with a critical shear rate of 500-800 s⁻¹. Under static pressure, the silicone flexible deformation absorbs energy, and under dynamic impact, the non-Newtonian fluid hardens instantaneously, forming a dual protection mechanism.

[0013] As a technical solution for a pressure-resistant RFID electronic tag according to the present invention, the surface of the cross-shaped elastic support column is provided with conductive grooves, and the conductive grooves are arc-shaped or spiral-shaped. The conductive grooves are connected to the antenna to avoid breakage of traditional straight circuits.

[0014] As a technical solution for a pressure-resistant RFID electronic tag according to the present invention, the magnetic levitation component includes a permanent magnet installed on the top wall of the inner cavity of the arched upper shell and an electromagnet installed on the bottom wall of the inner cavity of the flat lower shell. The permanent magnet and the electromagnet repel each other, and the RFID chip module is located between the permanent magnet and the electromagnet. The repulsive force between the permanent magnet and the electromagnet keeps the RFID chip module in a levitation state at all times, so as to completely isolate the transmission of mechanical vibration.

[0015] As a technical solution for a pressure-resistant RFID electronic tag according to the present invention, a pressure relief hole is provided on the wall of the sealed cavity, and the pressure relief hole is covered with a breathable and waterproof membrane to facilitate the rapid balance of air pressure inside and outside the shell, so as to prevent the structure from collapsing due to negative pressure, while ensuring gas permeability and waterproof effect.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. This utility model, by adopting a combination of an arched shell and a cross-shaped elastic support column, can convert vertical pressure into lateral dispersion force, while the elastic deformation of the cross-shaped elastic support column can absorb energy, so as to achieve multi-directional pressure resistance.

[0018] 2. This utility model, by setting up a non-Newtonian fluid and a magnetic levitation component, allows the non-Newtonian fluid to harden instantaneously under impact, and together with the magnetic levitation, it can achieve dual buffering and form a dynamic protection mechanism.

[0019] 3. This utility model, by setting a spiral conductive groove, ensures that the conductive lines remain conductive during structural deformation, thereby ensuring that signal transmission is not affected by structural deformation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall bottom view of the present invention.

[0023] Figure 3 This is a schematic diagram of the overall half-section structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the cross-shaped elastic support column structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1. Arched upper shell; 2. Flat lower shell; 201. Concentric convex ring; 202. Reinforcing rib; 3. Cross-shaped elastic support column; 301. Conductive wire groove; 4. RFID chip module; 501. Permanent magnet; 502. Electromagnet; 6. Pressure relief hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Reference Figures 1-4 A pressure-resistant RFID electronic tag is provided. This pressure-resistant RFID electronic tag includes a sealed cavity composed of an arched upper shell 1 and a flat lower shell 2. The arched structure naturally has the advantage of pressure resistance, which transforms vertical pressure into circumferential stress dispersion of the shell to improve the pressure resistance of the RFID electronic tag. Symmetrically arranged cross-shaped elastic support columns 3 are provided in the sealed cavity. The four ends of the cross-shaped elastic support columns 3 are connected to the wall of the sealed cavity. The four ends are connected to form a three-dimensional support network, which can resist multi-directional pressure (such as lateral compression).

[0032] An RFID chip module 4 is suspended on the inner side of the cross-shaped elastic support column 3 by a magnetic suspension component, and a buffer gap is left between the RFID chip module 4 and the sealed cavity. The buffer gap can prevent the RFID chip module 4 from making hard contact with the arched upper shell 1 and the flat lower shell 2, so as to prevent breakage caused by instantaneous impact.

[0033] Reference Figure 2 The bottom of the flat lower housing 2 is equipped with several concentric circular protrusions 201 for pressure dispersion, and several reinforcing ribs 202 for pressure dispersion are also installed at the bottom of the flat lower housing 2. The reinforcing ribs 202 are located outside the concentric circular protrusions 201 to facilitate the dispersion of vertical pressure and prevent the label from sliding and wearing during transportation.

[0034] Reference Figure 3 and Figure 4 The cross-shaped elastic support column 3 is a hollow silicone column. The interior of the cross-shaped elastic support column 3 is filled with a non-Newtonian fluid material. The non-Newtonian fluid material is a shear-thickening fluid with a critical shear rate of 500-800 s⁻¹. Under static pressure, the silicone absorbs energy through flexible deformation. Under dynamic impact, the non-Newtonian fluid hardens instantaneously, forming a dual protection mechanism.

[0035] Reference Figure 3 and Figure 4 The surface of the cross-shaped elastic support column 3 is provided with conductive grooves 301, and the conductive grooves 301 are arc-shaped or spiral-shaped (not shown in the figure). The conductive grooves 301 are connected to the antenna. When the support column is deformed, the lines in the spiral-shaped conductive grooves 301 can be stretched or twisted to avoid the breakage of traditional straight circuits. At the same time, the arc-shaped conductive grooves 301 can be used in different application scenarios (such as pressure from lateral extrusion).

[0036] Reference Figure 3 The magnetic levitation assembly includes a permanent magnet 501 mounted on the top wall of the inner cavity of the arched upper housing 1 and an electromagnet 502 mounted on the bottom wall of the inner cavity of the flat lower housing 2. The permanent magnet 501 and the electromagnet 502 repel each other, and the RFID chip module 4 is located between the permanent magnet 501 and the electromagnet 502. The repulsive force between the permanent magnet 501 and the electromagnet 502 keeps the RFID chip module 4 in a levitation state, completely isolating the transmission of mechanical vibration. At the same time, the magnetic strength of the electromagnet 502 can be adjusted to accommodate chips of different weights (compatible with RFID chip modules 4 of 5-20g).

[0037] Reference Figure 1 and Figure 2 The sealed cavity wall is provided with a pressure relief hole 6 to quickly balance the air pressure inside and outside the shell to prevent structural collapse caused by negative pressure (such as in high temperature environments). The pressure relief hole 6 is covered with a breathable and waterproof membrane. The breathable and waterproof membrane (such as ePTFE material) can ensure the gas permeability and waterproofness.

[0038] This invention provides a pressure-resistant RFID electronic tag that achieves multi-directional pressure resistance while maintaining the tag's thinness through a unique mechanical structure design.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pressure-resistant RFID electronic tag, characterized by: It includes a sealed cavity consisting of an arched upper shell (1) and a flat lower shell (2), and the sealed cavity is provided with symmetrically arranged cross-shaped elastic support columns (3), the four ends of which are connected to the wall of the sealed cavity. An RFID chip module (4) is suspended on the inner side of the cross-shaped elastic support column (3) by a magnetic suspension assembly, and a buffer gap is left between the RFID chip module (4) and the sealed cavity.

2. The pressure-resistant RFID electronic tag according to claim 1, characterized in that: The bottom of the planar lower housing (2) is equipped with a plurality of concentric circular protrusions (201) for pressure dispersion, and the bottom of the planar lower housing (2) is equipped with a plurality of reinforcing ribs (202) for pressure dispersion, and the reinforcing ribs (202) are located outside the concentric circular protrusions (201).

3. The pressure-resistant RFID electronic tag according to claim 1, characterized in that: The cross-shaped elastic support column (3) is a hollow silicone column. The interior of the cross-shaped elastic support column (3) is filled with a non-Newtonian fluid material. The non-Newtonian fluid material is a shear-thickening fluid with a critical shear rate of 500-800 s⁻¹.

4. The pressure-resistant RFID electronic tag according to claim 3, characterized in that: The surface of the cross-shaped elastic support column (3) is provided with a conductive groove (301), and the conductive groove (301) is arc-shaped or spiral-shaped, and the conductive groove (301) is connected to the antenna.

5. The pressure-resistant RFID electronic tag according to claim 1, characterized in that: The magnetic levitation assembly includes a permanent magnet (501) installed on the top wall of the inner cavity of the arched upper housing (1) and an electromagnet (502) installed on the bottom wall of the inner cavity of the planar lower housing (2). The permanent magnet (501) and the electromagnet (502) repel each other, and the RFID chip module (4) is located between the permanent magnet (501) and the electromagnet (502).

6. The pressure-resistant RFID electronic tag according to any one of claims 1 to 5, characterized in that: The sealed cavity wall is provided with a pressure relief hole (6), and the pressure relief hole (6) is covered with a breathable and waterproof membrane.

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