Laser etching NFC antenna

Abstract

The invention relates to the technical field of antennas, and provides a laser etching NFC antenna which adopts built-in design, is small in occupied space, small in size, convenient to assemble, reliable in structure, stable and reliable in antenna performance and capable of being widely applied, and comprises an antenna body and a mounting machine shell, the antenna body comprises an NFC antenna wire and two antenna connecting points, and the mounting machine shell is connected with the NFC antenna wire. A positive outer edge ring groove, a positive installation cavity and a negative installation cavity are formed in the installation machine shell, the NFC antenna wire comprises an inner antenna ring and an outer antenna ring, the inner antenna ring is arranged in the positive installation cavity, the outer antenna ring is arranged in the positive outer edge ring groove, the inner antenna ring is communicated with a positive lug plate, and the outer antenna ring is communicated with a negative lug plate. The reverse lug plate is communicated with the inner antenna coil ring, the two antenna connection points are communicated with the positive lug plate and the outer antenna coil ring respectively, two side openings are formed outside the installation machine shell, the two antenna connection points are arranged in the two side openings respectively, and a packaging shell is arranged outside the installation machine shell.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to a laser engraved NFC antenna. Background Art

[0002] As we all know, NFC is the abbreviation of Near Field Communication, which is a short-range high-frequency wireless communication technology. The communication distance is usually around 10cm. The laser engraved NFC antenna is a unique layout of the NFC antenna. It adopts a built-in design, occupies a small space, is compact, easy to assemble, has a reliable structure, and has stable and reliable antenna performance. It can be widely used.

[0003] As a mobile payment method, NFC is different from QR code scanning payment in that NFC is a high-frequency wireless communication technology that does not require the use of mobile networks. Mobile phones that use NFC technology are equivalent to turning mobile phones into payment terminals, which can be used to pay directly. With the gradual improvement of NFC technology, it is also a breakthrough for mobile operators to seek business development. At present, NFC technology has been determined to become a standard configuration for 4G mobile phones, so we will soon have a customized "mobile wallet". The mobile wallet can be used to swipe bank cards at POS machines, recharge bus cards, pay fees and check balances, and can also be used as a merchant's membership card. All of this is achieved by binding NFC technology to the SIM card. It will not consume mobile data during use and is safe and secure.

[0004] Although the existing NFC antenna design can realize the function of short-range wireless communication, considering the application environment of the NFC antenna, how to simplify the overall structure of the NFC antenna while meeting the production process of the NFC antenna, further reduce the overall volume of the NFC antenna, and optimize the space requirement of the NFC antenna relative to the supporting installation equipment is one of the important development directions of the NFC antenna. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a laser engraved NFC antenna, which adopts a built-in design, occupies a small space, is compact, easy to assemble, has a reliable structure, has stable and reliable antenna performance, and can be widely used as an NFC antenna.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser engraved NFC antenna, comprising an antenna body and a mounting housing, the antenna body comprising an NFC antenna routing and two antenna connection points, the mounting housing being provided with a positive outer ring groove, a positive mounting cavity and a reverse mounting cavity, the NFC antenna routing comprising an inner antenna coil ring and an outer antenna coil ring, the inner antenna coil ring being arranged in the positive mounting cavity, the outer antenna coil ring being arranged in the positive outer ring groove, the inner antenna coil ring being connected with a positive wiring piece, the outer antenna coil ring being connected with a reverse wiring piece, the reverse wiring piece being connected with the inner antenna coil ring, the two antenna connection points being respectively connected with the positive wiring piece and the outer antenna coil ring, the mounting housing being provided with two side openings outside, the two antenna connection points being respectively arranged in the two side openings, and the mounting housing being provided with a packaging shell outside.

[0007] As a further solution of the present scheme, the packaging shell includes a positive protective shell and a reverse protective shell, the positive protective shell is provided with a positive embedding cavity, and the reverse protective shell is provided with a reverse embedding cavity, the positive embedding cavity and the reverse embedding cavity are both matched with the mounting housing, and a synchronous packaging structure is provided between the mounting housing, the positive protective shell and the reverse protective shell.

[0008] As a further solution of the present invention, the synchronous packaging structure includes a colloid extrusion tube and an inspection discharge tube, both of which are fixedly connected to the positive protective shell, a positive step annular groove is provided on the positive protective shell, and a reverse step annular groove is provided on the reverse protective shell, the positive step annular groove and the reverse step annular groove match, and both of the colloid extrusion tube and the inspection discharge tube are connected to the positive step annular groove.

[0009] As a further solution of the present invention, a plurality of internal cut-in holes are arranged in the positive protective shell, and the plurality of internal cut-in holes are all connected with the positive step annular groove, a plurality of internal step grooves are opened on the inner bottom wall of the reverse protective shell, and a plurality of transfer connecting strip holes are arranged on the mounting housing, and the plurality of transfer connecting strip holes are respectively matched with the plurality of internal cut-in holes, and the plurality of transfer connecting strip holes are also respectively matched with the plurality of internal step grooves.

[0010] As a further solution of the present invention, side notches are provided at diagonal positions of the top end of the positive protective shell, and the colloid extrusion tube and the inspection discharge tube are respectively arranged in the two side notches.

[0011] As a further solution of the present invention, the colloid extrusion tube and the inspection discharge tube are both equipped with protective plugs, and the appearances of the two protective plugs are matched with the two side notches respectively.

[0012] As a further solution of the present invention, an inner liner pressure ring is provided in the positive protective shell, and the inner liner pressure ring matches the outer antenna coil ring.

[0013] As a further solution of the present invention, two through openings are provided between the positive installation cavity and the reverse installation cavity, and the two through openings are both used for passing the reverse wiring sheet.

[0014] Compared with the prior art, the present invention provides a laser engraved NFC antenna, which has the following beneficial effects:

[0015] (1) In the present invention, the antenna body is equipped with a laser laser engraving (LDS) design, the antenna performance is stable and reliable, and the NFC antenna can be widely used.

[0016] (2) In the present invention, the carrier structure of the antenna body is conveniently formed by the design of the mounting housing, and the antenna material is simplified in design, so that the antenna body is compact and occupies little space.

[0017] (3) In the present invention, the packaging protection structure of the antenna body is formed through the design of the packaging shell, and the integrated design is adopted, which is convenient for assembly, reliable in structure, and more conducive to product assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the installation housing, the inner antenna coil ring and the outer antenna coil ring of the present invention;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of the housing of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the anti-protection shell of the present invention;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the front protective shell of the present invention when viewed from above;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the housing of the present invention when viewed from above;

[0025] Figure 8 It is a schematic diagram of an exploded three-dimensional structure of the installation housing, inner antenna coil ring and positive protective housing of the present invention;

[0026] Fig. 9 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0027] In the figure: 1. Mounting housing; 2. Antenna connection point; 3. Positive mounting cavity; 4. Reverse mounting cavity; 5. Inner antenna coil ring; 6. Outer antenna coil ring; 7. Positive wiring lug; 8. Reverse wiring lug; 9. Side opening; 10. Positive protective shell; 11. Reverse protective shell; 12. Positive embedding cavity; 13. Reverse embedding cavity; 14. Colloid extrusion tube; 15. Inspection and discharge tube; 16. Positive step annular groove; 17. Reverse step annular groove; 18. Inner cut-in hole; 19. Inner step groove; 20. Transfer strip hole; 21. Side notch; 22. Protective plug; 23. Lining pressure ring; 24. Through opening. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example

[0030] See also Figure 1-Figure 9 , a laser engraved NFC antenna, comprising an antenna body and a mounting shell 1, the antenna body comprising an NFC antenna routing and two antenna connection points 2, the mounting shell 1 is provided with a positive outer ring groove, a positive mounting cavity 3 and a reverse mounting cavity 4, through the design of the mounting shell 1, it is convenient to form a carrier structure of the antenna body, through the simplified design of the antenna material, the volume is small, and the space occupied is small, the NFC antenna routing comprises an inner antenna coil ring 5 and an outer antenna coil ring 6, the inner antenna coil ring 5 is arranged in the positive mounting cavity 3, the outer antenna coil ring 6 is arranged in the positive outer ring groove, the inner antenna coil ring 5 is connected with a positive wiring piece 7, the outer antenna coil ring 6 is connected with a reverse wiring piece 8, the reverse wiring piece 8 is connected with the inner antenna coil ring 5, the two antenna connection points 2 are respectively connected with the positive wiring piece 7 and the outer antenna coil ring 6, two side openings 9 are provided outside the mounting shell 1, the two antenna connection points 2 are respectively arranged in the two side openings 9, through the configuration of the antenna body, the laser laser engraving (LDS) form design is adopted, the antenna performance is stable and reliable, and the NFC antenna can be widely used.

[0031] It should be further explained that a packaging shell is arranged outside the installation shell 1, and the packaging shell includes a positive protective shell 10 and a reverse protective shell 11, the positive protective shell 10 is provided with a positive embedding cavity 12, and the reverse protective shell 11 is provided with a reverse embedding cavity 13, and the positive embedding cavity 12 and the reverse embedding cavity 13 are matched with the installation shell 1, and a synchronous packaging structure is arranged between the installation shell 1, the positive protective shell 10 and the reverse protective shell 11, and the synchronous packaging structure includes a colloid extrusion tube 14 and an inspection discharge tube 15, and the colloid extrusion tube 14 and the inspection discharge tube 15 are fixedly connected to the positive protective shell 10, a positive step annular groove 16 is arranged on the positive protective shell 10, and a reverse step annular groove 17 is arranged on the reverse protective shell 11, and a positive step annular groove 18 is arranged on the reverse protective shell 11. The stepped annular groove 16 and the reverse stepped annular groove 17 match, the colloid extrusion tube 14 and the inspection discharge tube 15 are both connected to the positive stepped annular groove 16, a plurality of inner cut-in holes 18 are arranged in the positive protective shell 10, and the plurality of inner cut-in holes 18 are all connected to the positive stepped annular groove 16, a plurality of inner stepped grooves 19 are opened on the inner bottom wall of the reverse protective shell 11, a plurality of transfer strip holes 20 are arranged on the mounting housing 1, and the plurality of transfer strip holes 20 are respectively matched with the plurality of inner cut-in holes 18, and the plurality of transfer strip holes 20 are also respectively matched with the plurality of inner stepped grooves 19. Through the design of the packaging shell, the packaging protection structure of the antenna body is formed, and an integrated design is adopted, which is convenient to assemble, has a reliable structure, and is more conducive to product assembly.

[0032] It should be further explained that a side notch 21 is provided at the diagonal position of the top of the positive protective shell 10, and the colloid extrusion tube 14 and the inspection discharge tube 15 are respectively arranged in the two side notches 21, and the colloid extrusion tube 14 and the inspection discharge tube 15 are both equipped with protective plugs 22. The appearance of the two protective plugs 22 matches the two side notches 21 respectively, so as to form protection for the colloid extrusion tube 14 and the inspection discharge tube 15. An inner lining pressure ring 23 is provided in the positive protective shell 10, and the inner lining pressure ring 23 matches the outer antenna coil ring 6 to realize corresponding auxiliary pressure positioning for the outer antenna coil. Two through-openings 24 are provided between the positive installation cavity 3 and the reverse installation cavity 4, and the two through-openings 24 are both used for passing the reverse wiring piece 8.

[0033] In summary, the assembly process of the laser engraved NFC antenna is as follows: before assembly, first, the inner antenna coil ring 5 and the reverse wiring piece 8 are formed between the positive installation cavity 3 and the reverse installation cavity 4, and then the positive wiring piece 7 and the outer antenna coil ring 6 are formed, and the two antenna connection points 2 are connected to the positive wiring piece 7 and the outer antenna coil ring 6 respectively, so that the corresponding installation of the antenna body in the installation casing 1 is completed. After the installation is completed, the installation of the packaging shell can be realized relative to the installation casing 1. When installing the packaging shell, the installation shell is first embedded in the reverse embedding cavity 13, and then the positive protective shell 10 is installed relative to the reverse protective shell 11. When the positive protective shell 10 is aligned with the reverse protective shell 11, the positive protective shell should be installed. 10 is relatively parallel to the reverse protective shell 11, and the positive protective shell 10 is kept in a vertical trajectory relative to the reverse protective shell 11 as much as possible, until the bottom end of the positive protective shell 10 fits with the top end of the reverse protective shell 11. After the positive protective shell 10 and the reverse protective shell 11 fit each other up and down, the installation shell 1 is embedded in the positive embedding cavity 12, and the liner pressure ring 23 is relatively fitted and pressed relative to the outer antenna coil ring 6, and the bottom ends of the multiple transfer connecting strip holes 20 are respectively connected with the top ends of the multiple inner step grooves 19, and the sides of the multiple transfer connecting strip holes 20 are respectively connected with the multiple inner cut-in holes 18, and the positive step annular groove 16 is connected with the reverse step annular groove 17. The relative positions of the positive protective shell 10 and the reverse protective shell 11 are kept stable, the two protective plugs 22 are removed, the colloid extrusion tube 14 is connected with the extrusion tube of the external adhesive colloid, and the colloid is squeezed into the colloid extrusion tube 14 through the extrusion tube of the external adhesive colloid. Since the colloid extrusion tube 14 is connected with the positive step annular groove 16, the adhesive colloid entering the colloid extrusion tube 14 will enter the positive step annular groove 16, and will be guided by the positive step annular groove 16 to enter the reverse step annular groove 17 and the multiple inner cut-in holes 18 respectively. The adhesive colloid entering the inner cut-in hole 18 will be guided by the corresponding transfer strip hole 20 to enter the inner step groove 19, thereby realizing the positive protective shell 10, the reverse protective shell 11 and the installation shell 1 three. Synchronous gluing between them, continuously adding adhesive colloid into the colloid extrusion tube 14, until the adhesive colloid evenly overflows from the inspection discharge tube 15, then stop adding adhesive colloid into the colloid extrusion tube 14. To simplify the preparation process, the colloid extrusion tube 14 and the inspection discharge tube 15 are the same structural parts at different positions, and the colloid extrusion tube 14 and the inspection discharge tube 15 can be used interchangeably. Here we just form different names for the convenience of description and display. The two antenna connection points 2 correspond to double pins, which are used to connect the PCB output to introduce a matching circuit, and cooperate with the two pin point antennas outside to form a ring loop. The reverse wiring piece 8 adopts a perforation design relative to the reverse side of the mounting housing 1 to ensure the ring connection of the antenna.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser engraved NFC antenna, comprising an antenna body, characterized in that: The invention also comprises a mounting casing (1), wherein the antenna body comprises an NFC antenna wiring and two antenna connection points (2), the mounting casing (1) is provided with a positive outer ring groove, a positive mounting cavity (3) and a reverse mounting cavity (4), the NFC antenna wiring comprises an inner antenna coil ring (5) and an outer antenna coil ring (6), the inner antenna coil ring (5) is arranged in the positive mounting cavity (3), the outer antenna coil ring (6) is arranged in the positive outer ring groove, the inner antenna coil ring (5) is connected to a positive wiring piece (7), the outer antenna coil ring (6) is connected to a reverse wiring piece (8), the reverse wiring piece (8) is connected to the inner antenna coil ring (5), the two antenna connection points (2) are respectively connected to the positive wiring piece (7) and the outer antenna coil ring (6), the mounting casing (1) is provided with two side openings (9), the two antenna connection points (2) are respectively arranged in the two side openings (9), and the mounting casing (1) is provided with a packaging shell.

2. The laser engraved NFC antenna according to claim 1, characterized in that: The packaging shell comprises a positive protective shell (10) and a negative protective shell (11); the positive protective shell (10) is provided with a positive embedding cavity (12); the negative protective shell (11) is provided with a negative embedding cavity (13); both the positive embedding cavity (12) and the negative embedding cavity (13) are matched with the mounting housing (1); and a synchronous packaging structure is provided between the mounting housing (1), the positive protective shell (10) and the negative protective shell (11).

3. The laser engraved NFC antenna according to claim 2, characterized in that: The synchronous packaging structure comprises a colloid extrusion tube (14) and an inspection discharge tube (15), both of which are fixedly connected to the positive protective shell (10), a positive step annular groove (16) is provided on the positive protective shell (10), and a reverse step annular groove (17) is provided on the reverse protective shell (11), the positive step annular groove (16) and the reverse step annular groove (17) match, and both of the colloid extrusion tube (14) and the inspection discharge tube (15) are connected to the positive step annular groove (16).

4. The laser engraved NFC antenna according to claim 3, characterized in that: The positive protective shell (10) is provided with a plurality of inner cut-in holes (18), and the plurality of inner cut-in holes (18) are all connected to the positive step annular groove (16); the inner bottom wall of the reverse protective shell (11) is provided with a plurality of inner step grooves (19); the mounting housing (1) is provided with a plurality of transfer bar holes (20), and the plurality of transfer bar holes (20) are respectively matched with the plurality of inner cut-in holes (18), and the plurality of transfer bar holes (20) are also respectively matched with the plurality of inner step grooves (19).

5. The laser engraved NFC antenna according to claim 4, characterized in that: A side notch (21) is provided at a diagonal position on the top end of the positive protective shell (10), and the colloid extrusion tube (14) and the inspection discharge tube (15) are respectively arranged in the two side notches (21).

6. The laser engraved NFC antenna according to claim 5, characterized in that: The colloid extrusion tube (14) and the inspection discharge tube (15) are both equipped with protective plugs (22), and the appearances of the two protective plugs (22) are matched with the two side notches (21) respectively.

7. The laser engraved NFC antenna according to claim 6, characterized in that: An inner liner pressure ring (23) is arranged in the positive protective shell (10), and the inner liner pressure ring (23) matches the outer antenna coil ring (6).

8. The laser engraved NFC antenna according to claim 7, characterized in that: Two through openings (24) are provided between the positive installation cavity (3) and the reverse installation cavity (4), and the two through openings (24) are used for the reverse wiring piece (8) to pass through.

Images