Antenna for radio frequency identification tag

Abstract

The utility model relates to the technical field of tag antennas, in particular to an antenna for a radio frequency identification tag, which comprises a base material plate, a radio frequency identification radiation sheet is arranged on the surface of the top end of the base material plate, and a ceramic sheet A for heat dissipation is adhered to the surface of the bottom end of the base material plate; in the process of using the tag antenna for radio frequency identification, certain work can be generated when the radiation sheet on the surface of the base material plate and the chip in the base material plate operate, heat generated when the radiation sheet acts can be conducted to the base material plate, the heat can be conducted through the ceramic sheet A and the ceramic sheet B at the bottom of the base material plate, the heat can be volatilized more quickly, and the heat dissipation efficiency is improved. The heat concentration condition can be reduced, so that the radiation sheet and the chip on the surface of the base material plate can operate more stably, and meanwhile, the convex blocks and the grooves between the ceramic sheet A and the ceramic sheet B can be clamped with each other, so that the tightness of the ceramic sheet A and the ceramic sheet B after mutual connection can be improved, and the heat conduction can be more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to label antenna technical field, concretely relates to a kind of antennas for radio frequency identification label. BACKGROUND

[0002] Radio frequency identification technology is an automatic identification technology that matures from the eighties, it uses radio frequency to carry out non-contact two-way communication to achieve identification purpose and exchange data, radio frequency identification technology is widely applied in logistics warehouse, asset management, personnel management and other fields;Patent No. CN200920052322.5 discloses that the bending slot antenna for ultra-high frequency radio frequency identification label, as long as the label chip is directly connected to the input end of the antenna, without other external components, ultra-high frequency radio frequency identification label can be obtained, which not only can greatly simplify the label structure, improve the reliability of label, and facilitate the integration of label chip and antenna in the future, thereby greatly reducing the application cost of radio frequency identification technology;But in the process of using the antenna for radio frequency identification label, since the label antenna is arranged on the surface of the sheet-shaped substrate, the conductive signal of the antenna will generate a large amount of work, so that heat is accumulated on the surface of the substrate, which can easily affect the antenna. For this reason, we propose a kind of antenna for radio frequency identification label. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides an antenna for radio frequency identification label.

[0004] The technical scheme adopted by the utility model to solve its technical problems is an antenna for radio frequency identification label, including substrate board, the surface of the top end of the substrate board is provided with a radiation sheet for radio frequency identification, and the bottom end surface is bonded with a ceramic sheet A for heat dissipation, one end of the ceramic sheet A away from the substrate board is bonded with a ceramic sheet B for auxiliary heat dissipation, the top end surface of the ceramic sheet B is provided with a groove, and the groove has multiple groups, the side of the ceramic sheet A close to the ceramic sheet B is integrally provided with a protrusion matched with the groove, and the protrusion has multiple groups.

[0005] The opposite side of the ceramic sheet A and the ceramic sheet B is provided with a square hole, and the square hole is connected with a graphite heat conduction block between the ceramic sheet A and the ceramic sheet B, the outer wall surface of the ceramic sheet A and the ceramic sheet B is provided with a horizontal groove communicated with the square hole, and the horizontal groove has multiple groups.

[0006] Through the above technical scheme, in the process of using the label antenna for radio frequency identification, the radiation sheet on the surface of the substrate plate and the chip inside will generate a certain work when operating, and the heat generated during the work will be conducted to the substrate plate. The heat is conducted by the ceramic sheet A and the ceramic sheet B at the bottom of the substrate plate, so that the heat can be more rapidly volatilized, thereby reducing the condition of heat concentration, so that the radiation sheet on the surface of the substrate plate and the chip can operate more stably. The convex block and the recess between the ceramic sheet A and the ceramic sheet B can be mutually clamped, thereby improving the fastening after mutual connection between the two, and enabling the heat conduction to be more stable.

[0007] When the ceramic sheet A and the ceramic sheet B conduct heat, the graphite heat conduction block embedded between the two can assist and improve the heat conduction efficiency and volatilization effect, thereby improving the heat dissipation effect of the substrate plate. Meanwhile, the plurality of transverse grooves between the ceramic sheet A and the ceramic sheet B facilitate increasing the contact area of the graphite heat conduction block and the external air, thereby improving the heat dissipation effect.

[0008] Specifically, one side of the ceramic sheet B close to the ceramic sheet A is bonded with asbestos sheets for protection, and the asbestos sheets have a plurality of groups.

[0009] Through the above technical scheme, the asbestos sheets at the four corners of the ceramic sheet B facilitate protection, so that the ceramic sheet A and the ceramic sheet B can be more stably connected with each other, facilitating subsequent heat conduction.

[0010] Specifically, the inner wall surface of the square hole is provided with a square groove, and the top end surface and the bottom end surface of the graphite heat conduction block are integrally provided with square blocks matching the square groove.

[0011] Through the above technical scheme, the square blocks on the upper and lower sides of the graphite heat conduction block and the square groove in the square hole match each other, thereby improving the stability of the graphite heat conduction block embedded between the ceramic sheet A and the ceramic sheet B.

[0012] Specifically, the top end surface of the ceramic sheet A is provided with a frame groove matching the substrate plate, and the surface of the substrate plate is coated with a protective layer located at the outer periphery of the radiation sheet.

[0013] Through the above technical scheme, the frame groove at the top of the ceramic sheet A and the protrusion at the bottom of the substrate plate match each other, thereby improving the fastening after connection between the two, so that the ceramic sheet A can operate more stably. The resin protective layer on the surface of the substrate plate can protect the radiation sheet, so that it can operate more stably and reduce the condition of scratches caused by rubbing.

[0014] Specifically, the side of the ceramic sheet B away from the ceramic sheet A is provided with a rubber sheet for anti-skid, and the rubber sheet has a plurality of groups.

[0015] By adopting the technical scheme, the film has certain elasticity and anti-skid performance, the bottom of the ceramic sheet B is conveniently protected, the label antenna can be more stably attached, and the influence on the ceramic sheet B is reduced.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1、The technical scheme of the present application is designed by the ceramic sheet A, the ceramic sheet B, the protrusion, the groove and the radiation sheet, in the process of using the label antenna for radio frequency identification, the radiation sheet on the surface of the base plate and the chip inside it will generate a certain work when operating, and the heat generated when doing work will be conducted to the base plate, the heat will be conducted by the ceramic sheet A and the ceramic sheet B at the bottom of the base plate, so that the heat can be more rapidly volatilized, conveniently reducing the heat concentration condition, so that the radiation sheet on the surface of the base plate and the chip can operate more stably, and the protrusion and the groove between the ceramic sheet A and the ceramic sheet B can be mutually clamped, conveniently improving the fastening property after mutual connection, and making it more stably conduct heat.

[0018] 2、The technical scheme of the present application is designed by the square hole, the graphite heat conduction block and the horizontal groove, when the ceramic sheet A and the ceramic sheet B conduct heat, the graphite heat conduction block embedded in the square hole between them can be assisted and improve the heat conduction efficiency and volatilization effect, so as to improve the heat dissipation effect of the base plate, and the plurality of horizontal grooves between the ceramic sheet A and the ceramic sheet B can improve the contact area of the graphite heat conduction block and the external air, so as to improve the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further described below in combination with the drawings and examples.

[0020] Figure 1 It is the isometric view of the utility model;

[0021] Figure 2 It is the explosion view of the connecting structure between the ceramic sheet A and the ceramic sheet B of the utility model;

[0022] In the drawing: 1, base plate; 2, radiation sheet; 3, ceramic sheet A; 4, ceramic sheet B; 5, protrusion; 6, groove; 7, square hole; 8, graphite heat conduction block; 9, horizontal groove; 10, square groove; 11, square block; 12, frame groove; 13, asbestos sheet; 14, film; 15, protective layer. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0024] Please refer to Figures 1-2The utility model discloses an antenna for radio frequency identification label provides a technical scheme: an antenna for radio frequency identification label, including base material board 1, the top surface of base material board 1 is provided with the radiation sheet 2 of radio frequency identification, and the bottom surface is bonded with the ceramic sheet A 3 for heat dissipation, the one end of ceramic sheet A 3 is bonded with the ceramic sheet B 4 for auxiliary heat dissipation away from base material board 1, and the top surface of ceramic sheet B 4 is provided with recess 6, and recess 6 has multiple groups, and the one side of ceramic sheet A 3 is integrally formed with the convex block 5 of recess 6, and convex block 5 has multiple groups;The opposite side of ceramic sheet A 3 and ceramic sheet B 4 is provided with square hole 7, and the graphite heat conduction block 8 between ceramic sheet A 3 and ceramic sheet B 4 is clamped in square hole 7, and the outer wall surface of ceramic sheet A 3 and ceramic sheet B 4 is provided with the horizontal groove 9 of square hole 7 intercommunication, and horizontal groove 9 has multiple groups.

[0025] In use, in the process of using the label antenna for radio frequency identification, the radiation sheet 2 on the surface of base material board 1 and the chip inside it will produce a certain work when operating, and the heat generated when doing work will be conducted to base material board 1, and the ceramic sheet A 3 and the ceramic sheet B 4 at the bottom of base material board 1 will conduct heat, so that the heat can be more rapidly volatilized, thereby reducing the condition of heat concentration, so that the radiation sheet 2 on the surface of base material board 1 and the chip can operate more stably, and the convex block 5 and the recess 6 between the ceramic sheet A 3 and the ceramic sheet B 4 can be clamped with each other, thereby improving the fastening after mutual connection between the two and enabling them to conduct heat more stably.

[0026] When the ceramic sheet A 3 and the ceramic sheet B 4 conduct heat, the graphite heat conduction block 8 clamped in the square hole 7 between the two can assist and improve the heat conduction efficiency and volatilization effect, thereby improving the heat dissipation effect of the base material board 1, and the multiple horizontal grooves 9 between the ceramic sheet A 3 and the ceramic sheet B 4 facilitate to increase the contact area of the graphite heat conduction block 8 and the external air, thereby improving the heat dissipation effect.

[0027] As shown in Figure 1 and Figure 2 , the ceramic sheet B 4 is bonded with the asbestos sheet 13 for protection on the side close to the ceramic sheet A 3, and the asbestos sheet 13 has multiple groups.

[0028] In use, the asbestos sheet 13 at the four corners of the ceramic sheet B 4 facilitates protection, so that the ceramic sheet A 3 and the ceramic sheet B 4 can be more stably connected with each other, thereby facilitating subsequent heat conduction.

[0029] As shown in Figure 2 , the square groove 10 is provided on the inner wall surface of the square hole 7, and the square block 11 integrally formed with the square groove 10 is provided on the top end surface and the bottom end surface of the graphite heat conduction block 8.

[0030] In use, the square blocks 11 on the upper and lower sides of the graphite heat-conducting block 8 are matched with the square grooves 10 in the square holes 7, so as to improve the stability of the graphite heat-conducting block 8 embedded between the ceramic sheet A3 and the ceramic sheet B4.

[0031] As shown in Figure 2 , the top end surface of the ceramic sheet A3 is provided with a frame groove 12 matched with the base plate 1, and the surface of the base plate 1 is coated with a protective layer 15 located outside the radiation sheet 2.

[0032] In use, the frame groove 12 at the top of the ceramic sheet A3 is matched with the protrusion at the bottom of the base plate 1, so as to improve the fastening after connection between the two, so that the ceramic sheet A3 can operate more stably, and the resin protective layer 15 on the surface of the base plate 1 can protect the radiation sheet 2, so that it can operate more stably and reduce the condition of scratching caused by rubbing.

[0033] As shown in Figure 1 , the side of the ceramic sheet B4 away from the ceramic sheet A3 is provided with a rubber sheet 14 for anti-skid, and the rubber sheet 14 has multiple groups.

[0034] In use, the rubber sheet 14 has certain elasticity and anti-skid performance, which can protect the bottom of the ceramic sheet B4, so that the subsequent label antenna can be more stable during installation, and the influence on the ceramic sheet B4 is reduced.

[0035] The working principle and use process of the utility model are as follows: in use, first, the corresponding structure parts are installed in the appropriate position, and in the process of using the label antenna for radio frequency identification, the radiation sheet 2 on the surface of the base plate 1 and the chip inside it will produce a certain work when operating, and the heat generated when doing work will be conducted to the base plate 1, and the ceramic sheet A3 and the ceramic sheet B4 at the bottom of the base plate 1 will conduct heat, so that the heat can be more rapidly volatilized, so as to reduce the condition of heat concentration, so that the radiation sheet 2 on the surface of the base plate 1 and the chip can operate more stably, and the protrusion 5 and the recess 6 between the ceramic sheet A3 and the ceramic sheet B4 can be matched, so as to improve the fastening after mutual connection between the two, and make it more stable for heat conduction, and when the ceramic sheet A3 and the ceramic sheet B4 conduct heat, the graphite heat-conducting block 8 embedded in the square hole 7 between the two can assist and improve the heat conduction efficiency and volatilization effect, so as to improve the heat dissipation effect of the base plate 1, and the multiple transverse grooves 9 between the ceramic sheet A3 and the ceramic sheet B4 can improve the contact area of the graphite heat-conducting block 8 and the external air, so as to improve the heat dissipation effect and the stability of the label antenna during use.

[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An antenna for a radio frequency identification tag, characterized by, The utility model provides a substrate board (1) is provided with the radiation sheet (2) of radio frequency identification on the top end surface, and the bottom end surface is bonded with the ceramic sheet A (3) for heat dissipation, the ceramic sheet A (3) is bonded with the ceramic sheet B (4) for auxiliary heat dissipation away from one end of substrate board (1), the top end surface of ceramic sheet B (4) is provided with recess (6), and recess (6) has multiple groups, the one side of ceramic sheet A (3) is integrally formed with the convex block (5) of recess (6) and is matched, and convex block (5) has multiple groups; The opposite side of ceramic sheet A (3) and ceramic sheet B (4) is provided with square hole (7), and square hole (7) is connected with graphite heat conduction block (8) between ceramic sheet A (3) and ceramic sheet B (4) in the clamping, the outer wall surface of ceramic sheet A (3) and ceramic sheet B (4) is provided with horizontal groove (9) of square hole (7) communication, and horizontal groove (9) has multiple groups.

2. The antenna for a radio frequency identification tag according to claim 1, wherein The one side of ceramic sheet B (4) close to ceramic sheet A (3) is bonded with asbestos sheet (13) for protection, and asbestos sheet (13) has multiple groups.

3. The antenna according to claim 1, wherein The inner wall surface of square hole (7) is provided with square groove (10), and the top end surface and bottom end surface of graphite heat conduction block (8) are integrally formed with square block (11) matched with square groove (10).

4. The antenna according to claim 1, wherein The top end surface of ceramic sheet A (3) is provided with frame groove (12) matched with substrate board (1), and the surface of substrate board (1) is coated with protective layer (15) located in the outer periphery of radiation sheet (2).

5. The antenna according to claim 1, wherein The opposite side of ceramic sheet B (4) away from ceramic sheet A (3) is provided with adhesive sheet (14) for antiskid, and adhesive sheet (14) has multiple groups.

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