A type of ultra-high frequency miniature RFID electronic tag

Abstract

This utility model discloses an ultra-high frequency miniature RFID electronic tag, including a protective component. The protective component includes a protective frame, and a tag assembly is installed on the inner wall of the protective frame. The tag assembly includes a support plate fixed to the inner wall of the protective frame. A mounting groove is formed at the center of the upper end of the support plate. Extension grooves are formed on the inner walls of both ends of the mounting groove. The lower inner wall of the extension groove is flush with the lower inner wall of the mounting groove. Wire grooves are formed on the inner walls of both ends of the extension groove. The tag assembly also includes a chip fixed to the center of the lower inner wall of the mounting groove, and an antenna fixed to the inner wall of the wire groove. The end of the antenna near the chip is connected to contacts on both sides of the chip. The connection between the antenna and the chip is located in the extension groove. Symmetrically distributed limiting grooves are formed at the upper end of the support plate, and support components are installed on the inner walls of the limiting grooves. This utility model has the advantages of high structural stability, firm fixation, and good anti-interference ability.

Description

Technical Field

[0001] This utility model relates to the field of electronic tag technology, specifically to an ultra-high frequency small RFID electronic tag. Background Technology

[0002] In fields such as the Internet of Things, supply chain management, and asset management, ultra-high frequency RFID (radio frequency identification) electronic tags have been widely used due to their advantages such as non-contact identification, long reading distance, and simultaneous identification of multiple tags. As the core carrier of information storage and interaction, the structural stability, environmental adaptability, and identification reliability of electronic tags directly affect their application effect.

[0003] Ordinary electronic tags typically consist of a substrate, a chip, and an antenna. The chip is fixed to the substrate surface after being connected to the antenna via conductive adhesive or soldering. The chip itself is a rigid structure and usually protrudes from the substrate surface, forming a "hard point." When the tag is subjected to external force and bends, this "hard point" becomes a stress concentration center, causing the connection point between the chip and the antenna (such as the bonding pad or conductive adhesive) to bear excessive tensile or shear forces, which can easily lead to connection failures such as desoldering or breakage. Secondly, most existing tags rely on adhesive backing to be fixed to the surface of the object being identified. In harsh environments such as high humidity, oil pollution, and continuous vibration, the adhesive performance of the backing will rapidly degrade or even fail. The antenna design of the tag is usually compact to meet the requirements of miniaturization. When directly attached to a metal surface, the metal will reflect electromagnetic waves, interfering with the original electromagnetic field distribution of the antenna, resulting in a shortened tag recognition distance, decreased sensitivity, or even failure to be read. Utility Model Content

[0004] The purpose of this invention is to provide a small UHF RFID electronic tag with advantages such as high structural stability, firm fixation, and good anti-interference ability. It solves the problems in the prior art, such as chip connection points being prone to failure due to stress caused by bending, adhesive backing being prone to falling off in harsh environments, and metal surfaces interfering with antennas.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A miniature UHF RFID electronic tag includes a protective component. The protective component includes a protective frame, and a tag assembly is installed on the inner wall of the protective frame. The tag assembly includes a carrier plate fixed to the inner wall of the protective frame. A mounting groove is formed at the center of the upper end of the carrier plate. Extension grooves are formed on the inner walls of both ends of the mounting groove. The lower inner wall of the extension groove is flush with the lower inner wall of the mounting groove. Wire grooves are formed on the inner walls of both ends of the extension groove. The tag assembly also includes a chip fixed to the center of the lower inner wall of the mounting groove and an antenna fixed to the inner wall of the wire groove. The end of the antenna near the chip is connected to contacts on both sides of the chip. The connection between the antenna and the chip is located in the extension groove. Symmetrically distributed limiting grooves are formed at the upper end of the carrier plate. A support component is installed on the inner wall of the limiting groove. The support component includes reinforcing ribs fixed to the inner wall of the limiting grooves. The reinforcing ribs are located at the upper opening of the mounting groove, and the upper end of the reinforcing ribs is flush with the upper end of the carrier plate.

[0006] Preferably, the protective assembly further includes an upper protective plate fixed to the inner wall of the upper end of the protective frame. The upper protective plate is transparent, and the lower end of the upper protective plate is fixed to the upper end of the support plate.

[0007] It is worth noting that the upper protective plate can protect the upper part of the carrier plate and work together with the carrier plate to further ensure the firmness of the chip, antenna and reinforcing ribs, and improve the rigidity of the carrier plate, reducing damage caused by bending.

[0008] Preferably, the protective component further includes a lower protective plate fixed to the lower end of the protective frame. The lower end of the lower protective plate has a groove, and the inner wall of the groove is attached with an adhesive layer. The lower end of the adhesive layer is lower than the lower end of the lower protective plate.

[0009] It is worth noting that the lower protective plate can seal and protect the lower end of the protective frame, thereby protecting the label assembly located on the inner wall of the protective frame and further improving the protection of the label assembly. By attaching the adhesive layer to the groove, the contact area between the adhesive layer and the outer wall of the lower protective plate can be increased, ensuring the firmness of the adhesive layer. The lower end of the pressure-sensitive adhesive layer is lower than the lower end of the lower protective plate, so it can contact the fixing surface first. Pressing can cause part of the adhesive layer to shrink into the groove, thereby reducing the contact area between the adhesive layer and the outside world and reducing the aging of the adhesive layer.

[0010] Preferably, the protective component further includes a fixing block fixed to the corner of the outer wall of the protective frame. The fixing block has holes through the center of its upper and lower ends. A rubber ring is fixed to the lower end of the fixing block, and the lower end of the rubber ring is lower than the lower end of the protective frame.

[0011] It is worth noting that the holes made on the fixing block allow screws to pass through and be fixed inside the fixing surface, thereby fixing the fixing block to the fixing surface. Furthermore, the lower protective plate can be made to fit against the fixing surface to ensure protection of the adhesive layer. The rubber ring can be compressed and rebound after the fixing block is fixed to the fixing surface, which can prevent the screws from loosening. The friction between the rubber ring and the fixing surface can also improve the firmness of the fixing of the protective component.

[0012] Preferably, the label assembly further includes a support frame fixed to the lower edge of the carrier plate, with the lower end of the support frame fixed to the upper end of the lower protective plate.

[0013] It is worth noting that the support frame can connect and fix the carrier plate and the lower protective plate, and form a cavity between the carrier plate and the lower protective plate. When the label plate is installed on the metal surface, the cavity can provide a certain electromagnetic isolation distance, reducing the impact of the metal on the chip and antenna.

[0014] Preferably, the support assembly further includes support blocks that are fixed to the lower end of the reinforcing rib and are symmetrically distributed. The lower end of the support block is fixed to the lower inner wall of the mounting groove, and the outer wall of the support block is in contact with the inner wall of the mounting groove.

[0015] It is worth noting that the support block can further support the reinforcing rib, so that the reinforcing rib is firmly fixed in the upper opening of the mounting groove, which further improves the rigidity and integrity of the mounting groove and the extension groove, and avoids stress concentration at the connection between the antenna and the chip when bending.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides initial encapsulation and protection for the tag assembly by using a protective frame that adheres to the outer wall of the carrier plate. This prevents external dust and moisture from directly contacting the core components on the carrier plate. The mounting slot on the carrier plate precisely positions and fixes the chip, while the extension slot provides space for the connection between the chip and the antenna. The wire slot provides fitting and constraint for the antenna, ensuring the stability of the connection between the antenna and the chip. At the same time, the reinforcing ribs in the positioning slots enhance the structural rigidity of the area corresponding to the mounting slot on the carrier plate without obstructing the chip and antenna. This reduces deformation around the mounting slot when the carrier plate is bent, thereby reducing the possibility of stress caused by deformation at the connection between the chip and the antenna. Attached Figure Description

[0017] Figure 1 This is an isometric view of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 3 This is a three-dimensional structural disassembly diagram of the protective component of this utility model; Figure 4This is a three-dimensional structural breakdown diagram of the label component of this utility model; Figure 5 This is a three-dimensional structural diagram of the support component of this utility model; Figure 6 This is a partial three-dimensional structural diagram of the label component and support component of this utility model.

[0018] Reference numerals: 101, Protective frame; 102, Upper protective plate; 103, Lower protective plate; 104, Groove; 105, Adhesive layer; 106, Fixing block; 107, Hole; 108, Rubber ring; 201, Bearing plate; 202, Support frame; 203, Mounting groove; 204, Extension groove; 205, Limiting groove; 206, Wire groove; 207, Chip; 208, Antenna; 301, Reinforcing rib; 302, Support block. Detailed Implementation

[0019] 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.

[0020] To address the issues in existing technologies, such as chip interconnect failure due to stress caused by bending, adhesive detachment in harsh environments, and interference with antennas from metal surfaces, the following technical solutions are proposed. Please refer to [link / reference]. Figures 1-6 ; A miniature UHF RFID electronic tag includes a protective component. The protective component includes a protective frame 101, and a tag assembly is mounted on the inner wall of the protective frame 101. The tag assembly includes a support plate 201 fixed to the inner wall of the protective frame 101. A mounting groove 203 is formed at the center of the upper end of the support plate 201. Extension grooves 204 are formed on the inner walls of both the left and right ends of the mounting groove 203. The lower inner wall of the extension groove 204 is flush with the lower inner wall of the mounting groove 203. Wire grooves 206 are formed on the inner walls of both the left and right ends of the extension groove 204. The tag assembly also includes a component fixed to the lower inner wall of the mounting groove 203. The chip 207 is located at the center of the wall, and the antenna 208 is fixed to the inner wall of the wire groove 206. The end of the antenna 208 near the chip 207 is connected to the contacts on both sides of the chip 207. The connection between the antenna 208 and the chip 207 is located in the extension groove 204. The upper end of the support plate 201 is provided with symmetrically distributed limiting grooves 205. The inner wall of the limiting groove 205 is equipped with a support assembly. The support assembly includes a reinforcing rib 301 fixed to the inner wall of the limiting groove 205. The reinforcing rib 301 is located at the upper opening of the mounting groove 203. The upper end of the reinforcing rib 301 is flush with the upper end of the support plate 201.

[0021] The protective frame 101, by adhering to the outer wall of the carrier plate 201, provides initial encapsulation and protection for the label assembly, preventing external dust and moisture from directly contacting the core components on the carrier plate 201. The mounting groove 203 on the carrier plate 201 can precisely limit and fix the chip 207, while the extension groove 204 provides space for the connection between the chip 207 and the antenna 208. The wire groove 206 can fit and constrain the antenna 208, ensuring the connection stability between the antenna 208 and the chip 207. At the same time, the reinforcing rib 301 in the limiting groove 205 can enhance the structural rigidity of the area of ​​the carrier plate 201 corresponding to the mounting groove 203 without obstructing the chip 207 and the antenna 208, reducing the deformation around the mounting groove 203 when the carrier plate 201 is bent, thereby reducing the possibility of stress caused by deformation at the connection between the chip 207 and the antenna 208.

[0022] The mounting slot 203 provides a precise space for the chip 207, and its inner wall can circumferentially limit the chip 207, preventing the chip 207 from lateral displacement when the carrier plate 201 is under stress. The extension slot 204 is connected to the mounting slot 203 and its lower inner wall is flush with the mounting slot 203, forming a continuous integrated slot structure. When the edge of the carrier plate 201 where the antenna 208 is located is bent by external force, the extension slot 204 will deform synchronously with the mounting slot 203. By utilizing the continuity of the slot body, the bending point that may originally be concentrated at the connection between the chip 207 and the antenna 208 is transferred to the outer area of ​​the extension slot 204, which is far away from the connection end. This structural design allows the stress generated by bending to be gradually released along the length of the extension slot 204, rather than acting directly on the connection point between the chip 207 and the antenna 208, which significantly reduces the risk of breakage or poor contact at the connection due to excessive local stress.

[0023] Please see Figure 3 The protective assembly also includes an upper protective plate 102 fixed to the inner wall of the upper end of the protective frame 101. The upper protective plate 102 is transparent, and the lower end of the upper protective plate 102 is fixed to the upper end of the support plate 201. The upper protective plate 102 can protect the upper end of the support plate 201 and cooperate with the support plate 201 to further ensure the firmness of the chip 207, antenna 208 and reinforcing rib 301, and improve the rigidity of the support plate 201, reducing damage caused by bending.

[0024] The protective assembly also includes a lower protective plate 103 fixed to the lower end of the protective frame 101. A groove 104 is formed at the lower end of the lower protective plate 103, and an adhesive layer 105 is attached to the inner wall of the groove 104. The lower end of the adhesive layer 105 is lower than the lower end of the lower protective plate 103. The lower protective plate 103 can seal and protect the lower end of the protective frame 101, thereby protecting the label assembly located on the inner wall of the protective frame 101 and further enhancing the protection of the label assembly. By attaching the adhesive layer 105 to the tank 104, the contact area between the adhesive layer 105 and the outer wall of the lower protective plate 103 can be increased, ensuring the firmness of the adhesive layer 105. The lower end of the pressure-sensitive adhesive layer 105 is lower than the lower end of the lower protective plate 103, so it can contact the fixing surface first. Pressing can cause part of the adhesive layer 105 to shrink into the tank 104, thereby reducing the contact area between the adhesive layer 105 and the outside world and reducing the aging of the adhesive layer 105.

[0025] The protective assembly also includes a fixing block 106 fixed to the corner of the outer wall of the protective frame 101. Holes 107 are provided through the center of the upper and lower ends of the fixing block 106. A rubber ring 108 is fixed to the lower end of the fixing block 106, and the lower end of the rubber ring 108 is lower than the lower end of the protective frame 101. Through the holes 107 on the fixing block 106, screws can pass through and be fixed in the fixing surface, thereby fixing the fixing block 106 to the fixing surface. Furthermore, the lower protective plate 103 can be made to fit against the fixing surface to ensure the protection of the adhesive layer 105. The rubber ring 108 can be compressed and rebound after the fixing block 106 is fixed to the fixing surface to prevent the screws from loosening. The friction between the rubber ring 108 and the fixing surface can improve the firmness of the fixing of the protective assembly.

[0026] Please see Figure 4 The tag assembly also includes a support frame 202 fixed to the lower edge of the carrier plate 201, with the lower end of the support frame 202 fixed to the upper end of the lower protective plate 103. The support frame 202 can connect and fix the carrier plate 201 and the lower protective plate 103, and form a cavity between the carrier plate 201 and the lower protective plate 103. When the tag is installed on a metal surface, the cavity can provide a certain electromagnetic isolation distance, reducing the impact of the metal on the chip 207 and the antenna 208.

[0027] Please see Figure 5 The support assembly also includes support blocks 302 that are fixed to the lower end of the reinforcing rib 301 and symmetrically distributed. The lower end of the support block 302 is fixed to the lower inner wall of the mounting groove 203, and the outer wall of the support block 302 fits against the inner wall of the mounting groove 203. The support block 302 can further support the reinforcing rib 301, so that the reinforcing rib 301 is firmly fixed in the upper opening of the mounting groove 203, further improving the rigidity and integrity of the mounting groove 203 and the extension groove 204, and avoiding stress concentration at the connection between the antenna 208 and the chip 207 when bending.

[0028] Working principle: First, the adhesive layer 105 fixed in the groove 104 of the lower protective plate 103 makes the adhesive layer 105 contact the fixing surface first, initially achieving the adhesion and fixation of the label to the fixing surface; when the label is pressed, the adhesive layer 105 partially retracts into the groove 104. Then, through the through hole 107 on the fixing block 106 at the corner of the outer wall of the protective frame 101, the screw is passed through the hole 107 and screwed into the fixing surface, further locking the fixing block 106 to the fixing surface, while making the lower protective plate 103 tightly fit the fixing surface, strengthening the fixing effect; at this time, the rubber ring 108 at the lower end of the fixing block 106 is compressed and rebounded due to the extrusion, improving the overall connection firmness between the protective component and the fixing surface.

[0029] The protective frame 101 provides preliminary encapsulation and protection for the label assembly, preventing external dust and moisture from directly contacting the core components on the carrier plate 201. The upper protective plate 102 not only provides direct protection to the upper part of the carrier plate 201, but also works with the carrier plate 201 to improve overall rigidity and reduce bending damage. At the same time, the transparent design does not affect the observation of the internal components. The support frame 202 not only connects and fixes the carrier plate 201 and the lower protective plate 103, but also forms a cavity between the two. When the label is installed on a metal surface, this cavity can provide electromagnetic isolation distance, significantly reducing the electromagnetic interference of the metal material to the chip 207 and the antenna 208, and ensuring the stability of ultra-high frequency signal transmission.

[0030] The reinforcing rib 301 can enhance the structural rigidity of the area of ​​the support plate 201 corresponding to the mounting groove 203 without obstructing the chip 207 and antenna 208, and reduce the deformation around the mounting groove 203 when the support plate 201 is bent; the support block 302 can further support the reinforcing rib 301, so that the reinforcing rib 301 is firmly fixed in the upper opening of the mounting groove 203, and improve the structural integrity of the mounting groove 203 and the extension groove 204.

[0031] The mounting groove 203 at the center of the upper end of the carrier plate 201 forms a circumferential limit on the chip 207, preventing the chip 207 from shifting laterally when the carrier plate 201 is under force, thus ensuring the stability of the chip 207's position. The extension grooves 204 at both ends of the mounting groove 203 provide accommodating space for the connection end between the chip 207 and the antenna 208. At the same time, when the edge of the carrier plate 201 where the antenna 208 is located is bent by external force, the extension grooves 204 deform synchronously with the mounting groove 203, transferring the bending point that might originally be concentrated at the connection end to a location farther away from the connection end. The outer area of ​​the extension groove 204 allows bending stress to be gradually released along the length of the extension groove 204, preventing stress from acting directly on the connection contact point. The wire groove 206 provides fitting constraint for the antenna 208, ensuring the connection stability between the antenna 208 and the contacts on both sides of the chip 207. During operation, the antenna 208 receives external ultra-high frequency signals and transmits them to the chip 207. After processing the signals, the chip 207 transmits the feedback signals to the external reading and writing device through the antenna 208, realizing the identification and data interaction functions of RFID tags.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A UHF miniature RFID electronic tag, comprising a protective component, characterized in that, The protective assembly includes a protective frame (101), and a label assembly is installed on the inner wall of the protective frame (101). The label assembly includes a support plate (201) fixed to the inner wall of the protective frame (101). A mounting groove (203) is provided at the center of the upper end of the support plate (201). Extension grooves (204) are provided on the inner walls of both the left and right ends of the mounting groove (203). The lower inner wall of the extension groove (204) is flush with the lower inner wall of the mounting groove (203). Wire grooves (206) are provided on the inner walls of both the left and right ends of the extension groove (204). The label assembly also includes a chip (207) fixed to the center of the lower inner wall of the mounting groove (203), and a fixed... The antenna (208) is located on the inner wall of the wire groove (206). The end of the antenna (208) close to the chip (207) is connected to the contacts on both sides of the chip (207). The connection between the antenna (208) and the chip (207) is located in the extension groove (204). The upper end of the carrier plate (201) is provided with symmetrically distributed limiting grooves (205). The inner wall of the limiting groove (205) is equipped with a support assembly. The support assembly includes a reinforcing rib (301) fixed to the inner wall of the limiting groove (205). The reinforcing rib (301) is located at the upper opening of the mounting groove (203). The upper end of the reinforcing rib (301) is flush with the upper end of the carrier plate (201).

2. The ultra-high frequency miniature RFID electronic tag according to claim 1, characterized in that, The protective assembly also includes an upper protective plate (102) fixed to the inner wall of the upper end of the protective frame (101). The upper protective plate (102) is transparent, and the lower end of the upper protective plate (102) is fixed to the upper end of the support plate (201).

3. The ultra-high frequency miniature RFID electronic tag according to claim 1, characterized in that, The protective assembly also includes a lower protective plate (103) fixed to the lower end of the protective frame (101). The lower end of the lower protective plate (103) has a groove (104). The inner wall of the groove (104) is attached with an adhesive layer (105). The lower end of the adhesive layer (105) is lower than the lower end of the lower protective plate (103).

4. The ultra-high frequency miniature RFID electronic tag according to claim 1, characterized in that, The protective component also includes a fixing block (106) fixed to the corner of the outer wall of the protective frame (101). The fixing block (106) has holes (107) through the center of its upper and lower ends. A rubber ring (108) is fixed to the lower end of the fixing block (106). The lower end of the rubber ring (108) is lower than the lower end of the protective frame (101).

5. The ultra-high frequency miniature RFID electronic tag according to claim 3, characterized in that, The label assembly also includes a support frame (202) fixed to the lower edge of the support plate (201), the lower end of which is fixed to the upper end of the lower protective plate (103).

6. The ultra-high frequency miniature RFID electronic tag according to claim 1, characterized in that, The support assembly also includes support blocks (302) that are fixed to the lower end of the reinforcing rib (301) and symmetrically distributed. The lower end of the support block (302) is fixed to the lower inner wall of the mounting groove (203), and the outer wall of the support block (302) is attached to the inner wall of the mounting groove (203).

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