CN213026490U - NFC antenna structure and electronic device with same - Google Patents
NFC antenna structure and electronic device with same Download PDFInfo
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- CN213026490U CN213026490U CN202022427708.9U CN202022427708U CN213026490U CN 213026490 U CN213026490 U CN 213026490U CN 202022427708 U CN202022427708 U CN 202022427708U CN 213026490 U CN213026490 U CN 213026490U
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Abstract
The application discloses an NFC antenna structure and an electronic device with the same, wherein the NFC antenna structure comprises a main body, a wave absorbing body and a coil; the wave absorbing body is embedded in the main body; and laser engraving to form the coil on the surface of the wave absorber far away from the main body, wherein the coil is provided with a first feeding point and a second feeding point. The application provides an NFC antenna structure and electronic equipment who has NFC antenna structure, structural design is reasonable, has not only simplified the assembly flow, has guaranteed moreover that the NFC antenna has more stable assembly structure.
Description
Technical Field
The application belongs to the field of communication, and in particular relates to an NFC antenna structure and an electronic device with the same.
Background
With the development of Near Field Communication (NFC) technology, electronic devices can replace public transport cards, subway cards, bank cards, access cards and corresponding card swiping devices, file and data transmission between devices can be rapidly and safely realized, and NFC antennas gradually become standard configurations of electronic devices.
The current NFC antenna comprises a coil, a ferrite, and a double-sided tape, wherein the coil is fixed to one side of the ferrite by the double-sided tape, and the other side of the ferrite is fixed to the relevant component of the electronic device by the double-sided tape. However, fixing the coil on the ferrite by the double-sided tape not only increases the thickness of the NFC antenna, but also is disadvantageous in ensuring the stability of the mounting structure of the NFC antenna.
Disclosure of Invention
The embodiment of the application aims to provide an NFC antenna structure and electronic equipment with the same, and the problem that the structural stability of the existing NFC antenna is poor can be solved.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an NFC antenna structure, including:
the wave absorber is embedded in the main body;
the coil is formed by laser carving on the surface, far away from the main body, of the wave absorbing body and is provided with a first feeding point and a second feeding point.
In a second aspect, an embodiment of the present application provides an electronic device with an NFC antenna structure, including:
the above NFC antenna structure;
and the first feeding point and the second feeding point are respectively connected with the mainboard.
In the embodiment of the application, the coil is formed by laser etching on the surface of the wave absorbing body, so that the thickness of the NFC antenna is effectively reduced, the light and thin requirements of electronic equipment are met, the bonding strength of the coil and the wave absorbing body is higher, and the NFC antenna is guaranteed to have a stable assembly structure.
In addition, the NFC antenna structure simplifies the assembly process, so that the NFC antenna structure is more flexible in the form of arrangement in the electronic equipment.
Drawings
Fig. 1 is a front view of a coil and a wave absorber of an NFC antenna structure provided in this embodiment;
fig. 2 is a schematic structural diagram of a coil and a wave absorber of an NFC antenna structure provided in this embodiment;
fig. 3 is a schematic structural diagram of an NFC antenna provided in this embodiment;
fig. 4 is a schematic structural diagram of another NFC antenna provided in this embodiment;
fig. 5 is a schematic structural diagram of another NFC antenna provided in this embodiment;
in the figure: 1. a main body; 2. a wave absorber; 21. a first through hole; 22. a second through hole; 3. a coil; 31. A first feeding point; 32. a second feeding point; 4. a main board; 51. a first bolt; 52. a second bolt; 61. A first antenna contact; 62. a second antenna contact; 7. a graphite layer; 81. a first spring plate; 82. and a second elastic sheet.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
An NFC antenna structure and an electronic device having the NFC antenna structure provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present embodiment provides an NFC antenna structure, which can be applied to an electronic device. The electronic device can be a mobile phone, a tablet computer, an intelligent bracelet and the like.
In the present embodiment, the NFC antenna structure includes a main body 1, a wave absorber 2, and a coil 3. The main body 1 is used for fixing the wave absorber 2, the wave absorber 2 is high in magnetic conductivity, magnetic flux can be converged, and interference of surrounding metal on a magnetic field of the NFC antenna structure is avoided. The coil 3 serves as an antenna radiator for transmitting and receiving wireless signals.
It should be noted that the main body 1 is made of a non-metal material, so that the wireless signal of the NFC antenna structure can pass through the main body 1, and the interference of the main body 1 on the wireless signal of the NFC antenna structure is avoided.
Specifically, the wave absorber 2 is embedded in the main body 1. The main body 1 can be a non-metal main board support, a non-metal battery cover and a non-metal component in the electronic equipment, and the setting position of the NFC antenna structure is not limited by the application. The wave absorber 2 is arranged at a very flexible position, so that the NFC antenna structure can be arranged at a proper position of the electronic equipment as required, and the space of the electronic equipment can be utilized more reasonably.
More specifically, the coil 3 is formed by laser engraving on the surface of the wave absorber 2 far away from the main body 1. Through the direct radium carving of laser at the wave suction body 2 formation coil 3, avoided fixing coil 3 at wave suction body 2 through the double faced adhesive tape and increased NFC antenna structure's thickness, help reducing NFC antenna structure's thickness to do benefit to the requirement of electronic equipment frivolousization. Meanwhile, the connection strength of the coil 3 and the wave absorber 2 is higher, so that the NFC antenna assembly structure is more stable. In addition, with the direct radium carving of coil 3 on wave absorber 2, easy operation is favorable to optimizing the assembly structure of NFC antenna.
In the present embodiment, the coil 3 has a first feeding point 31 and a second feeding point 32, and the first feeding point 31 and the second feeding point 32 are respectively connected to the main board 4, so that the connection between the coil 3 and the main board 4 is relatively simple. The first feeding point 31 and the second feeding point 32 are connected to the main board 4, so that the feeding and grounding requirements of the NFC antenna structure are met.
In the embodiment of the application, the coil 3 is formed by laser etching on the surface of the wave absorber 2, so that the thickness of the NFC antenna structure is effectively reduced, the light and thin requirements of electronic equipment are met, the bonding strength of the coil 3 and the wave absorber 2 is higher, and the NFC antenna structure is guaranteed to have a stable assembly structure.
In addition, the NFC antenna structure simplifies the assembly process, so that the NFC antenna structure is more flexible in the form of arrangement in the electronic equipment.
Optionally, as shown in fig. 2, the NFC antenna structure further includes a first antenna contact 61 and a second antenna contact 62, where the first antenna contact 61 and the second antenna contact 62 are electrically connected to the main board 4, respectively. A stable connection of the NFC antenna structure to the main board 4 can be achieved by the first antenna contact 61 and the second antenna contact 62.
The first antenna contact 61 and the second antenna contact 62 are disposed on a side of the wave absorber 2 away from the coil 3, and the first feeding point 31 is electrically connected to the first antenna contact 61, and the second feeding point 32 is electrically connected to the second antenna contact 62.
A stable connection of the NFC antenna structure to the main board 4 can be achieved by the first antenna contact 61 and the second antenna contact 62, and the assembly of the NFC antenna structure in an electronic device is facilitated.
It should be noted that the arrangement positions of the first antenna contact 61 and the second antenna contact 62 may be set on a structure such as a motherboard bracket, a battery cover, and the like as needed, and the first antenna contact 61 and the second antenna contact 62 facilitate stable connection between the NFC antenna structure and the motherboard 4, and also facilitate assembly of the NFC antenna structure in the electronic device.
Further alternatively, as shown in fig. 2, the wave absorber 2 is provided with a first through hole 21 and a second through hole 22.
The first feeding point 31 is electrically connected to the first antenna contact 61 through the first via hole 21; the second feeding point 32 is connected to the first antenna contact 61 through the second via. The first through hole 21 and the second through hole 22 can be formed in a laser etching mode, and the accuracy of position setting of the first through hole 21 and the second through hole 22 is guaranteed. At the same time, the first through hole 21 makes the electrical connection of the first feeding point 31 to the first antenna contact 61 relatively simple and also makes the electrical connection of the second feeding point 32 to the second antenna contact 62 relatively simple.
Optionally, as shown in fig. 3, the main body 1 is a battery cover, an installation groove is formed in an inner surface of the battery cover, the wave absorber 2 is embedded in the installation groove, and the coil 3 is located on a side of the wave absorber 2 facing the battery cover. This can reduce the space occupation of NFC antenna structure to electronic equipment, helps reducing electronic equipment's overall thickness.
In addition, the NFC antenna structure is arranged on the battery cover, so that the sensitivity of the NFC antenna structure is improved.
Optionally, a graphite layer 7 covers a surface of a side of the wave absorber 2 facing away from the battery cover, and the first antenna contact 61 and the second antenna contact 62 are disposed on the graphite layer 7. The inner surface of the battery cover is covered with the graphite layer 7, so that the battery cover can be better protected. The wave absorbing body 2 is arranged below the graphite layer 7, so that the wave absorbing body 2 can be protected by the graphite layer 7, and the inner surface of the battery cover has a better appearance.
Optionally, the wave absorber 2 is fixed to the battery cover by a double-sided adhesive tape. This enables the wave absorber 2 to be stably fixed to the battery cover and is easy to handle.
The present embodiment provides an electronic device having an NFC antenna structure. It includes mainboard and above-mentioned NFC antenna structure. Wherein the first feeding point 31 and the second feeding point 32 are connected to the main board 4, respectively. The electronic equipment is reasonable in structural design, not only is the assembly process simplified, but also the NFC antenna is guaranteed to have a stable assembly structure.
In one embodiment, as shown in fig. 4, the NFC antenna structure further includes a first bolt 51 and a second bolt 52, the main body 1 is a main board support, and the main board 4 is fixed to the main board support by the first bolt 51 and the second bolt 52. Mainboard support and 4 fixed connection of mainboard, mainboard support are used for fixed mainboard 4. The main board 4 is fixed on the main board support through the first bolt 51 and the second bolt 52, which not only makes the fixing method simpler, but also makes the main board 4 firmly fixed on the main board support.
Specifically, the mainboard support is provided with a groove on the surface away from the mainboard 4, the wave absorber 2 is arranged in the groove, and the coil 3 is located on one side of the wave absorber 2 away from the groove. Through setting up wave absorber 2 and coil 3 in the recess of mainboard support, not only can further reduce the space of NFC antenna structure to electronic equipment and occupy, help reducing electronic equipment's whole thickness, improved the stability that NFC antenna structure fixed on the mainboard support moreover.
The first feeding point 31 is electrically connected to the main board 4 by the first bolt 51, and the second feeding point 32 is electrically connected to the main board 4 by the second bolt 52. Utilize first bolt 51 and second bolt 52 to realize the electric connection of NFC antenna structure and mainboard 4, not only optimized the connection structure of NFC antenna and mainboard 4, be convenient for the assembly of NFC antenna structure on the mainboard support moreover.
Above-mentioned embodiment not only makes the NFC antenna structure firmly fix on the mainboard support, has simplified the connection structure of NFC antenna structure and mainboard 4 moreover, makes things convenient for the assembly of NFC antenna structure.
In one embodiment, as shown in fig. 5, the main body 1 is a main board support, the wave absorber 2 is disposed inside the main board support, and the main board 4 is fixed on the main board support. This can reduce the thickness of NFC antenna structure effectively, also makes the fixed more firm of NFC antenna structure simultaneously.
Specifically, the coil 3 is positioned on one side of the wave absorber 2 away from the main board 4; the first antenna contact 61 and the second antenna contact 62 are disposed on the side of the motherboard bracket close to the motherboard 4. The first feeding point 31 is electrically connected to the main board 4 through the first antenna contact 61, and the second feeding point 32 is electrically connected to the main board 4 through the second antenna contact 62.
Above-mentioned embodiment makes when fixing mainboard 4 on the mainboard support, has realized the electric connection of NFC antenna structure and mainboard 4 for the assembly of NFC antenna structure is fairly simple. Moreover, the space occupation of the NFC antenna structure on the electronic equipment can be reduced, and the reduction of the overall thickness of the electronic equipment is facilitated.
Optionally, the electronic device further includes a first elastic sheet 81 and a second elastic sheet 82, where the first elastic sheet 81 and the second elastic sheet 82 are disposed on the main board 4.
The first elastic piece 81 is electrically connected with the first antenna contact 61, and the second elastic piece 82 is electrically connected with the second antenna contact 62.
Optionally, the wave absorber 2 is ferrite. The ferrite has high magnetic conductivity and good effect of bunching magnetic flux, and can effectively avoid the interference of surrounding metal on the magnetic field of the NFC antenna.
The electronic equipment with the NFC antenna structure is reasonable in structural design, not only is the assembly flow simplified, but also the NFC antenna is guaranteed to have a stable assembly structure.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An NFC antenna structure, comprising:
the wave absorber is embedded in the main body;
the coil is formed by laser carving on the surface, far away from the main body, of the wave absorbing body and is provided with a first feeding point and a second feeding point.
2. The NFC antenna structure of claim 1, further comprising a first antenna contact and a second antenna contact;
the first antenna contact and the second antenna contact are arranged on one side of the wave absorber far away from the coil, the first feeding point is electrically connected with the first antenna contact, and the second feeding point is electrically connected with the second antenna contact.
3. The NFC antenna structure of claim 2, wherein the wave absorber is provided with a first via and a second via;
the first feed point is electrically connected with the first antenna contact through the first through hole; the second feed point is connected to the first antenna contact through the second via.
4. The NFC antenna structure according to claim 2, wherein the main body is a battery cover, an inner surface of the battery cover is provided with a mounting groove, the wave absorber is embedded in the mounting groove, and the coil is located on a side of the wave absorber facing the battery cover.
5. The NFC antenna structure of claim 4, wherein a surface of the wave absorber on a side facing away from the battery cover is covered with a graphite layer, the first antenna contact and the second antenna contact being disposed on the graphite layer.
6. The NFC antenna structure of claim 4, wherein the wave absorber is secured to the battery cover by a double sided adhesive tape.
7. An electronic device having an NFC antenna structure, comprising:
an NFC antenna structure according to any one of claims 1 to 6;
and the first feeding point and the second feeding point are respectively connected with the mainboard.
8. The electronic device according to claim 7, wherein the main body is a main board bracket, and the main board is fixed to the main board bracket by a first bolt and a second bolt;
a groove is formed in the surface, far away from the main board, of the main board support, the wave absorbing body is arranged in the groove, and the coil is located on one side, far away from the groove, of the wave absorbing body;
the first feeding point is electrically connected with the mainboard through the first bolt, and the second feeding point is electrically connected with the mainboard through the second bolt.
9. The electronic device of claim 7, wherein the main body is a motherboard bracket, the motherboard is fixed on the motherboard bracket, and the first antenna contact and the second antenna contact are both disposed on a side of the motherboard bracket close to the motherboard;
the wave absorbing body is arranged inside the main board support;
the coil is positioned on one side of the wave absorbing body far away from the main board;
the first feeding point is electrically connected with the mainboard through the first antenna contact, and the second feeding point is electrically connected with the mainboard through the second antenna contact.
10. The electronic device of claim 9, further comprising a first resilient piece and a second resilient piece, wherein the first resilient piece and the second resilient piece are disposed on the motherboard;
the first elastic sheet is electrically connected with the first antenna contact, and the second elastic sheet is electrically connected with the second antenna contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022427708.9U CN213026490U (en) | 2020-10-27 | 2020-10-27 | NFC antenna structure and electronic device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022427708.9U CN213026490U (en) | 2020-10-27 | 2020-10-27 | NFC antenna structure and electronic device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213026490U true CN213026490U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022427708.9U Active CN213026490U (en) | 2020-10-27 | 2020-10-27 | NFC antenna structure and electronic device with same |
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| Country | Link |
|---|---|
| CN (1) | CN213026490U (en) |
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- 2020-10-27 CN CN202022427708.9U patent/CN213026490U/en active Active
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