An RFID tag having high water resistance and rubbing resistance

Abstract

The application relates to the technical field of RFID tags, in particular to an RFID tag with high waterproofness and friction resistance, which comprises a base cloth and a circular mounting port arranged in the middle of the base cloth, a chip module is arranged in the mounting port, a first connecting part is arranged on one side of the base cloth, a second connecting part is arranged on the other side of the base cloth, the first connecting part comprises two first connecting sheets, the second connecting part comprises two second connecting sheets, the width of the first connecting sheet is smaller than that of the second connecting sheet, the two second connecting sheets are turned over to the sides far away from each other, and the end portions of the second connecting sheets are close to the end portions of the first connecting sheets, so that a large cylinder with a water-drop-shaped cross section is formed, the two first connecting sheets are arranged in an arc shape, and a small cylinder with a water-drop-shaped cross section is formed, the small cylinder is arranged in the large cylinder, and the base cloth is arranged between the large cylinder and the small cylinder. The application reduces the force acting on the base cloth and protects the chip module.

Description

Technical Field

[0001] This invention relates to the field of RFID tag technology, and in particular to an RFID tag with high waterproof and abrasion-resistant properties. Background Technology

[0002] RFID tags mainly consist of coupling elements (such as antennas) and chips. Each tag has a unique electronic code, and high-capacity electronic tags also have user-writable storage space. The tag transmits its own code and other information through its built-in transmitting antenna. The reader decodes the received signal and sends it to the back-end main system for processing, thereby enabling the identification of the items, people, and devices represented by the tag.

[0003] CN108713204B discloses an RFID tag constructed by mounting a wireless communication chip module on a base fabric. The chip module includes an IC chip for controlling wireless communication, a core antenna electrically connected to the IC chip, and a sealing portion that seals the IC chip and the core antenna, forming at least one through-hole. The base fabric has a boost antenna formed of conductive fibers. At a specific position relative to the boost antenna, the chip module is mounted on the base fabric via non-conductive yarns that simultaneously penetrate the through-hole and the base fabric. This RFID tag prevents damage to the holding portion of the chip module and chip module detachment during squeezing and dehydration, thus improving the durability of the RFID tag relative to dehydration operations.

[0004] However, during the dehydration process, it is impossible to determine whether the area where the base fabric is squeezed is where the chip is installed or where the chip is not installed. When the area where the chip is installed is squeezed, the entire RFID tag will still be subjected to a large impact force, which may cause the chip to fall off. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies that cannot determine whether the location where the base fabric is compressed is the location where the chip is installed or the location where the chip is not installed. When the location where the chip is installed is compressed, the entire RFID tag will still be subjected to a large impact force, which may cause the chip to fall off. Therefore, this invention proposes an RFID tag with high waterproof and abrasion resistance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An RFID tag with high waterproof and abrasion-resistant properties includes: a base fabric and a circular mounting opening in the middle of the base fabric, wherein a chip module is installed inside the mounting opening;

[0008] The base fabric has a first connecting portion on one side and a second connecting portion on the other side. The first connecting portion includes two first connecting pieces, and the second connecting portion includes two second connecting pieces.

[0009] The width of the first connecting piece is smaller than the width of the second connecting piece. The two second connecting pieces are flipped to the side away from each other, and their ends are close to the ends of the first connecting pieces, thereby forming a large cylinder with a teardrop-shaped cross-section. The two first connecting pieces are arranged in an arc shape to form a small cylinder with a teardrop-shaped cross-section.

[0010] The small column is disposed inside the large column, and the base fabric is located between the large column and the small column.

[0011] Preferably, the chip module includes four arc-shaped antennas and a chip block, with the four arc-shaped antennas connected to the chip block via telescopic components to form a circular chip module.

[0012] Preferably, a sealing assembly is provided on the outside of the chip module. The sealing assembly includes a chip shell, four antenna shells and four connecting rings. The chip shell is disc-shaped and the chip block is disposed inside the chip shell. The four antenna shells are fixedly connected to the side of the chip shell in a ring shape, and the four arc-shaped antennas are respectively disposed inside the four antenna shells. The four connecting rings are hollow inside and are fixedly connected to the side of the four antenna shells respectively, and their outer sides are connected to the base fabric.

[0013] The sealing assembly is generally disc-shaped, with both the top and bottom surfaces being arc-shaped surfaces that bulge upwards from the center.

[0014] Preferably, the telescopic component includes a bending rod and a shaft. The bending rod has a through-hole, through which the connecting end of the arc-shaped antenna passes and forms an S-shaped bend. The shaft is fixedly connected to one end of the bending rod and is rotatably connected to the sealing assembly to drive the bending rod to return to its original position.

[0015] Preferably, both the antenna housing and the chip housing are made of elastic material, and a folding section is provided at the connection point for bending between the antenna housing and the chip housing.

[0016] Preferably, the first connecting portion further includes a first suture piece, and the second connecting portion further includes a second suture piece. The first suture piece and the second suture piece are respectively fixedly connected to the ends of the first connecting piece and the second connecting piece, and the first suture piece and the second suture piece are used to connect the first connecting piece and the second connecting piece.

[0017] Preferably, a waterproof coating is provided on the side where the two first connecting parts are close to each other and on the side where the two second connecting parts are close to each other.

[0018] Preferably, both the first connecting part and the second connecting part are made of fabric, and multiple fixing strips are fixedly connected to the first connecting part and the second connecting part, the fixing strips being used to support and fix the large column and the small column.

[0019] Preferably, a first absorbent layer is provided around the mounting port, and a second absorbent layer is provided on the side of the second connecting piece that is far apart from each other. Both the first absorbent layer and the second absorbent layer are annular.

[0020] Preferably, two pressure strips are symmetrically fixedly connected to both sides of the second connecting piece. The pressure strips are long strips made of elastic material and are used to gather the two sides of the second connecting piece toward the center.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] A large cylinder and a small cylinder are formed on the outside of the chip module. The teardrop-shaped large cylinder and the small cylinder are nested together. The outer large cylinder can effectively disperse the force, thereby protecting the base fabric between the large cylinder and the small cylinder. The base fabric can swing between the large cylinder and the small cylinder, thereby reducing the impact on the base fabric. When the outer side of the large cylinder is squeezed, the inner small cylinder can support the large cylinder again, thereby reducing the force acting on the base fabric and protecting the chip module.

[0023] The components are configured as four individually set arc antennas. Arc antennas are small in size but have complete functions. At the same time, the four individually set arc antennas do not affect each other's independent signal transmission.

[0024] The four arc antennas and the chip block are individually sealed by the sealing components, and the connection parts inside the antenna shell and the chip shell are sealed with sealant. This prevents water from entering one arc antenna and affecting the use of the entire chip module, thus improving the safety of the entire chip module.

[0025] When subjected to large-area impact, the outer side of the sealing component is arc-shaped, which can effectively disperse the force and thus protect the sealing component.

[0026] The connection between the arc antenna and the chip block is made by a telescopic component, so that the connection position is S-shaped. The entire telescopic component can extend when bending, thereby ensuring the service life of the connection position.

[0027] The first and second absorbent layers come into contact, causing the adhesive material between them to adhere to each other and form a sealing ring. This completely covers the second connecting piece on the base fabric, and the second connecting pieces on both sides are completely adhered to the base fabric, thus completely wrapping the sealing assembly and preventing the continuous water flow from causing long-term impact and wear on the sealing assembly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the unfolded front structure of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0029] Figure 2 This is a schematic diagram of the bottom surface structure of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention when unfolded.

[0030] Figure 3 This is a schematic diagram illustrating the deformation process of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0031] Figure 4 This is a schematic diagram of the front structure of an RFID tag with high waterproof and abrasion-resistant properties when folded, as proposed in this invention.

[0032] Figure 5 This is a schematic diagram of the sealing assembly structure of an RFID tag with high waterproof and abrasion-resistant properties when folded, as proposed in this invention.

[0033] Figure 6 This is a schematic diagram of the sealing assembly structure of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0034] Figure 7 This is an internal cross-sectional view of the sealing assembly of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0035] Figure 8 This is a schematic diagram of the chip module structure of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0036] Figure 9 This is a schematic diagram of the telescopic component structure of an RFID tag with high waterproof and abrasion-resistant properties proposed in this invention.

[0037] In the diagram: 1. Base fabric; 2. Chip module; 21. Arc antenna; 22. Chip block; 3. First connecting part; 31. First connecting piece; 32. First stitching piece; 4. Second connecting part; 41. Second connecting piece; 42. Second stitching piece; 5. Sealing assembly; 51. Chip shell; 52. Antenna shell; 53. Connecting ring; 6. Telescopic component; 61. Bending rod; 62. Shaft; 7. Folding section; 8. Waterproof coating; 9. Fixing strip; 10. First absorbent layer; 11. Second absorbent layer; 12. Pressure strip. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0040] Reference Figures 1-9 An RFID tag with high waterproof and abrasion resistant properties includes: a base fabric 1 and a circular mounting opening in the middle of the base fabric 1, wherein a chip module 2 is installed inside the mounting opening;

[0041] The base fabric 1 has a first connecting part 3 on one side and a second connecting part 4 on the other side. The first connecting part 3 includes two first connecting pieces 31, and the second connecting part 4 includes two second connecting pieces 41.

[0042] The width of the first connecting piece 31 is smaller than the width of the second connecting piece 41. The two second connecting pieces 41 are flipped to the side away from each other, and their ends are close to the ends of the first connecting piece 31, thereby forming a large cylinder with a teardrop-shaped cross-section. The two first connecting pieces 31 are arranged in an arc shape to form a small cylinder with a teardrop-shaped cross-section.

[0043] The small column is disposed inside the large column, and the base fabric 1 is located between the large column and the small column.

[0044] In embodiments applying the above technical solution, the base fabric 1, by setting a heat transfer adhesive layer, a waterproof layer, a printed pattern layer, and a release layer made of materials such as PET and PE, ensures that the label will not be damaged, faded, or blurred due to repeated friction and contact with chemicals during the washing process. Simultaneously, this improvement enhances the overall protective capability of the RFID wash label and improves the practicality between multiple layers.

[0045] By setting two first connecting pieces 31 and a second connecting piece 41, a large cylinder and a small cylinder are formed on the outside of the chip module 2. The teardrop-shaped large cylinder and the small cylinder are nested together. The outer large cylinder can effectively disperse the force, thereby protecting the base fabric 1 between the large cylinder and the small cylinder. The base fabric 1 can swing between the large cylinder and the small cylinder, thereby reducing the impact on the base fabric 1. When the outer side of the large cylinder is squeezed, the inner small cylinder can support the large cylinder again, thereby reducing the force acting on the base fabric 1 and protecting the chip module 2.

[0046] The preferred technical solution in this embodiment is:

[0047] Reference Figure 5-6 The chip module 2 includes four arc-shaped antennas 21 and a chip block 22. The four arc-shaped antennas 21 are connected to the chip block through telescopic components 6, thereby forming a circular chip module 2.

[0048] During washing and spin-drying processes, the bending and folding of the fabric will cause the antenna to bend and fold. When selecting coupling elements, the elements are set as four individually set arc-shaped antennas 21. The arc-shaped antennas 21 are small in size but have complete functions. At the same time, the four individually set arc-shaped antennas 21 do not affect each other's independent signal transmission. Setting four arc-shaped antennas 21 can form a circular chip module 2, which not only reduces the area of ​​the entire chip module 2, but also increases the pressure resistance of the entire chip module 2.

[0049] Reference Figure 4-5 The chip module 2 is provided with a sealing component 5 on its outer side. The sealing component 5 includes a chip shell 51, four antenna shells 52 and four connecting rings 53. The chip shell 51 is disc-shaped and the chip block 22 is disposed inside the chip shell 51. The four antenna shells 52 are fixedly connected to the side of the chip shell 51 in a ring shape, and the four arc-shaped antennas 21 are respectively disposed inside the four antenna shells 52. The four connecting rings 53 are hollow inside and are fixedly connected to the side of the four antenna shells 52 respectively, and are connected to the base cloth 1 on their outer side.

[0050] The sealing component 5 is generally disc-shaped, with both the top and bottom surfaces being arc-shaped surfaces that bulge upwards in the center.

[0051] Existing chip modules 2 mostly involve sealing the chip and antenna as a whole. In actual use, this can result in an excessively large external sealing volume of the chip module 2, making it difficult to effectively disperse the impact force. This can easily cause impact damage to the internal components and also cause the entire sealing component to bend rigidly, resulting in damage to the internal chip and antenna.

[0052] The four arc antennas 21 and the chip block 22 are individually sealed by the sealing component 5, and the connection parts inside the antenna housing 52 and the chip housing 51 are sealed with sealant. This prevents water from entering one arc antenna 21 and affecting the use of the entire chip module 2, thus improving the safety of the entire chip module 2.

[0053] Meanwhile, there are gaps between the chip housing 51 and the four antenna housings 52. When one antenna housing 52 is squeezed, it will not affect the antenna housings 52 in other positions, reducing the deformation of the entire sealing assembly 5. At the same time, when subjected to a large-area impact, the outer side of the sealing assembly 5 is arc-shaped, which can effectively disperse the force, thereby protecting the sealing assembly 5.

[0054] Furthermore, the chip housing 51 in the middle is protected by four antenna housings 52 on the side. Since the cost of the chip is higher than that of the antenna, the protection on the side can reduce the damage to the chip, make the chip recyclable, and reduce the production cost.

[0055] Reference Figure 7 The telescopic component 6 includes a bending rod 61 and a shaft 62. The bending rod 61 has a through hole, through which the connecting end of the arc antenna 21 passes and forms an S-shaped bend. The shaft 62 is fixedly connected to one end of the bending rod 61 and is rotatably connected to the sealing component 5 to drive the bending rod 61 to reset.

[0056] Both the antenna housing 52 and the chip housing 51 are made of elastic material, and a folding section 7 is provided at the connection position for bending between the antenna housing 52 and the chip housing 51.

[0057] Since the four antenna housings 52 and the chip housing 51 need to be bent and deformed independently, if the arc antenna 21 and the chip block 22 are directly connected, the repeated bending will cause repeated bending and folding at the connection between the arc antenna 21 and the chip block 22, thus affecting the connection between the arc antenna 21 and the chip block 22.

[0058] By connecting the arc-shaped antenna 21 and the chip block 22 through the telescopic member 6, the connection position becomes an S-shaped bend. The bend can play an extension role, so when the antenna shell 52 on one side is squeezed and bends, the S-shaped connection part is straightened, thereby avoiding bending and folding of the connection position. When no external force is applied, the bending rod 61 will return to its original position under the elastic action of the shaft 62. The entire telescopic member 6 can play an extension effect when bending, thereby ensuring the service life of the connection position.

[0059] Reference Figure 8-9The first connecting part 3 further includes a first suture piece 32, and the second connecting part 4 further includes a second suture piece 42. The first suture piece 32 and the second suture piece 42 are respectively fixedly connected to the ends of the first connecting piece 31 and the second connecting piece 41. The first suture piece 32 and the second suture piece 4 are used to connect the first connecting piece 31 and the second connecting piece 41.

[0060] The first stitching piece 32 and the second stitching are used to sew the RFID tag, which is bent into a large cylindrical shape, onto the clothing.

[0061] Reference Figure 9 A waterproof coating 8 is provided on the side where the two first connecting parts 3 are close to each other and on the side where the two second connecting parts 4 are close to each other.

[0062] The waterproof coating 8 can effectively reduce the amount of water entering and the material between the large and small cylinders, and can block liquids that may be accidentally splashed in daily life, thus providing waterproof protection for the chip module 2 between the large and small cylinders.

[0063] Reference Figure 8-9 The first connecting part 3 and the second connecting part 4 are both made of fabric, and multiple fixing strips 9 are fixedly connected to the first connecting part 3 and the second connecting part 4. The fixing strips 9 are used to support and fix the large column and the small column.

[0064] A first absorbent layer 10 is provided around the mounting opening of the base fabric 1, and a second absorbent layer 11 is provided on the side of the second connecting piece 41 that is far away from each other. Both the first absorbent layer 10 and the second absorbent layer 11 are annular.

[0065] The large and small cylinders can protect the internal chip module 2 in daily life. However, since the first connecting part 3 and the second connecting part 4 are both made of fabric, they can withstand less force and provide less support during washing and spin drying. By setting multiple elastic fixing strips 9, the load-bearing capacity of the entire large and small cylinders can be effectively strengthened. At the same time, the fixing strips 9 act as a frame and can bear the main force. After the force is applied, they can quickly recover.

[0066] Once the entire RFID tag is submerged in water, the water flow will continuously impact the sealing component 5, causing wear and tear on the sealing component 5 and making the RFID tag susceptible to water damage.

[0067] When the RFID tag is fully immersed in water, or after being removed from the water after a period of immersion, both the first absorbent layer 10 on the base fabric 1 and the second absorbent layer 11 on the second connecting piece 41 will absorb liquid. Since there is a water-absorbing adhesive between the first absorbent layer 10 and the second absorbent layer 11, which can be a partially superabsorbent polymer resin or polymer adhesive, it becomes sticky after absorbing water and loses its stickiness after dehydration. When the second connecting piece 41 is squeezed, the first absorbent layer 10 and the second absorbent layer 11 come into contact, causing the adhesive between the first absorbent layer 10 and the second absorbent layer 11 to adsorb each other and form a sealing ring, thereby completely covering the second connecting piece 41 on the base fabric 1. At the same time, the waterproof coating 8 on the outside of the second connecting piece 41 will be continuously subjected to water pressure, and the second connecting pieces 41 on both sides will be completely adhered to the base fabric 1, completely wrapping the sealing component 5 and preventing the continuous water flow from causing long-term impact and wear on the sealing component 5.

[0068] Meanwhile, during daily use, the first absorbent layer 10 located on the outside of the chip module 2 can absorb splashed water, reducing the contact between water and the chip module 2, thereby reducing the risk of water ingress.

[0069] Reference Figure 8-9 The second connecting piece 41 has two pressure strips 12 symmetrically fixedly connected to both sides. The pressure strips 12 are long strips made of elastic material and are used to gather the two sides of the second connecting piece 41 toward the middle.

[0070] RFID tags are commonly used as clothing tags. During daily use, RFID tags will form a large cylinder and a small cylinder. The large cylinder has an opening at both the top and bottom. During use, water that is accidentally splashed can easily get into the large cylinder and damage the chip module 2.

[0071] By setting pressure strips 12 on both sides of the second connecting piece 41, the pressure strips 12 will cause the second connecting piece 41 to retract inward when the large cylinder is in normal use, thereby reducing the size of the opening of the large cylinder and preventing splashed water from entering the interior of the large cylinder, thus protecting the chip module 2.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An RFID tag having high water resistance and rub resistance, comprising: The base cloth (1) and the circular mounting hole opened in the middle of the base cloth (1), characterized in that the mounting hole is internally mounted with a chip module (2). The base cloth (1) is provided with a first connecting part (3) on one side and a second connecting part (4) on the other side, the first connecting part (3) comprises two first connecting pieces (31), and the second connecting part (4) comprises two second connecting pieces (41). The width of the first connecting piece (31) is smaller than that of the second connecting piece (41), the two second connecting pieces (41) are turned over to the sides away from each other, and the end portions are close to the end portions of the first connecting pieces (31), so as to form a large cylinder with a water drop-shaped cross section, and the two first connecting pieces (31) are arranged in an arc shape to form a small cylinder with a water drop-shaped cross section. The small cylinder is arranged in the large cylinder, and the base cloth (1) is located between the large cylinder and the small cylinder.

2. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein The chip module (2) comprises four arc-shaped antennas (21) and a chip block (22), the four arc-shaped antennas (21) are connected with the chip block (22) through elastic members (6), so as to form a circular chip module (2).

3. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein The chip module (2) is provided with a sealing assembly (5) on the outside, the sealing assembly (5) comprises a chip shell (51), four antenna shells (52) and four connecting rings (53), the chip shell (51) is in the shape of a circular cake, the chip block (22) is arranged in the chip shell (51), the four antenna shells (52) are fixedly connected to the side edges of the chip shell (51) in a ring shape, the four arc-shaped antennas (21) are arranged in the four antenna shells (52) respectively, the four connecting rings (53) are hollow on the inside and are fixedly connected to the side edges of the four antenna shells (52) respectively, and the outside is connected with the base cloth (1). The sealing assembly (5) is in the shape of a circular cake, and the upper and lower surfaces are both arc-shaped surfaces with the middle part protruding upwards.

4. The RFID tag having high water resistance and rubbing resistance according to claim 2, wherein The elastic member (6) comprises a curved rod (61) and a shaft rod (62), the curved rod (61) is provided with a through hole, the connecting end of the arc-shaped antenna (21) passes through the through hole and forms an S-shaped bending, and the shaft rod (62) is fixedly connected to one end of the curved rod (61) and is rotatably connected with the sealing assembly (5) to drive the curved rod (61) to reset.

5. The RFID tag having high water resistance and rubbing resistance according to claim 3, wherein The antenna shell (52) and the chip shell (51) are both made of elastic material, and a folding section (7) is arranged at the connecting position for bending between the antenna shell (52) and the chip shell (51).

6. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein The first connecting part (3) further comprises a first stitching piece (32), the second connecting part (4) further comprises a second stitching piece (42), the first stitching piece (32) and the second stitching piece (42) are fixedly connected to the end portions of the first connecting piece (31) and the second connecting piece (41) respectively, and the first stitching piece (32) and the second stitching piece (42) are used for connecting the first connecting piece (31) and the second connecting piece (41).

7. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein The sides close to each other of the two first connecting parts (3) and the sides close to each other of the two second connecting parts (4) are provided with a waterproof coating (8).

8. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein The first connecting part (3) and the second connecting part (4) are both made of cloth, and a plurality of fixing strips (9) are fixedly connected on the first connecting part (3) and the second connecting part (4), and the fixing strips (9) are used for supporting and fixing the large column cylinder and the small column cylinder.

9. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein A first water absorption layer (10) is arranged around the mounting port of the base cloth (1), and a second water absorption layer (11) is arranged on the side away from each other of the second connecting piece (41), and the first water absorption layer (10) and the second water absorption layer (11) are both annular.

10. The RFID tag having high water resistance and rubbing resistance according to claim 1, wherein Two pressing strips (12) are fixedly connected on the two sides of the second connecting piece (41) in a symmetrical mode, the pressing strips (12) are long strips made of elastic material, and the pressing strips (12) are used for folding the two sides of the second connecting piece (41) to the middle part.

Images