CN211128572U - Wearable equipment with NFC function - Google Patents
Wearable equipment with NFC function Download PDFInfo
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- CN211128572U CN211128572U CN201922371755.3U CN201922371755U CN211128572U CN 211128572 U CN211128572 U CN 211128572U CN 201922371755 U CN201922371755 U CN 201922371755U CN 211128572 U CN211128572 U CN 211128572U
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Abstract
The utility model provides a wearable equipment with NFC function, includes the area body and equipment principal, and equipment principal includes casing, display screen, core circuit board module, NFC radio frequency module and dorsal scale. The core circuit board module is arranged in the shell and between the display screen and the back shell. The NFC radio frequency antenna of the NFC radio frequency module comprises a coil antenna and an anti-metal shielding pad, the coil antenna is attached to the back face of the display screen, and the anti-metal shielding pad is arranged between the coil antenna and the core circuit board module. The anti-metal shielding pad is used for reducing the absorption of the core circuit board module to the NFC radio frequency signal and increasing the induction distance of the NFC radio frequency antenna. Because set up the coil antenna between display screen and core circuit board module to increase anti metallic shield pad between coil antenna and core circuit board module, with the induction distance that increases coil antenna received magnetic field intensity and improved coil antenna, and then not only can improve wearable equipment NFC functional stability, can also reduce wearable equipment's volume.
Description
Technical Field
The application relates to the technical field of wearable equipment, in particular to wearable equipment with an NFC function.
Background
Under the conditions that the innovation space of the smart phone is gradually narrowed and the market increment is close to saturation, the smart wearable device is widely accepted by the market as the next hotspot of the smart terminal industry and slowly becomes an essential daily use tool in the daily life of people. With the popularization of the NFC (Near Field Communication) function, smart wearable devices at present are all provided with Communication modes such as an NFC function, a bluetooth BT, wireless WIFI, a mobile Communication signal and the like, for example, a smart watch can communicate with other electronic devices by adopting the Communication modes, so that functions such as payment, file transmission, electronic lock opening and closing are conveniently completed. Wearable equipment of intelligence all is small and exquisite light for main design theory, therefore antenna structure's performance plays decisive effect to user experience. The design requirement to NFC radio frequency antenna is also higher to the intelligence wrist-watch is taken as an example, and because the table body is small, NFC radio frequency signal will use simultaneously with signals such as bluetooth BT, wireless WIFI and mobile communication again, and then leads to the NFC function of intelligence wrist-watch unstable, has reduced user's experience. Please refer to fig. 1, which is a schematic structural diagram of a wearable smart watch, the smart watch includes a band 4 and a main device body, and the main device body includes a display screen 1, a housing 2 and a back shell 3. The NFC radio frequency antenna of the intelligent watch with the NFC function is generally arranged on the belt body 4 of the intelligent watch, in the shell 2 or around the display screen 1, the NFC radio frequency antenna is arranged on the belt body 4 and is easy to break, the volume of the intelligent watch can be increased around the shell 2 or the display screen 1, and the production processes of the three modes are complex.
Disclosure of Invention
The technical problem that this application mainly solved is that the wearable equipment that has the NFC function increases the technical problem of volume because of NFC radio frequency antenna.
According to a first aspect, a wearable device with NFC functionality comprises a band and a device body; the band body is used for being fixedly connected with the equipment main body when the wearable equipment is worn;
the equipment main body comprises a shell, a display screen, a core circuit board module, an NFC radio frequency module and a back shell; the display screen and the back shell are arranged on the shell; the core circuit board module is arranged in the shell and between the display screen and the back shell; the NFC radio frequency module is electrically connected with the core circuit board module and is used for providing an NFC function for the wearable equipment;
the NFC radio frequency module comprises an NFC radio frequency antenna, and the NFC radio frequency antenna is arranged between the display screen and the core circuit board module; the NFC radio frequency antenna comprises a coil antenna and an anti-metal shielding pad, the coil antenna is attached to the back of the display screen, and the anti-metal shielding pad is arranged between the coil antenna and the core circuit board module; the anti-metal shielding pad is used for reducing the absorption of the core circuit board module to NFC radio frequency signals and increasing the induction distance of the NFC radio frequency antenna.
Furthermore, the anti-metal shielding pad is made of a carbon-series wave-absorbing material, an iron-series wave-absorbing material, a ceramic-series wave-absorbing material, a conductive polymer, a chiral material and/or a plasma material.
Further, the anti-metal shielding pad is made of a ferrite electromagnetic shielding material and/or a graphene electromagnetic shielding material.
Further, the shape of the anti-metal shielding pad is the same as that of the coil antenna.
Further, the NFC radio frequency module also comprises an NFC radio frequency circuit and an NFC interface circuit;
the NFC radio frequency circuit comprises a radio frequency matching circuit and an NFC radio frequency chip; the radio frequency matching circuit is connected between the NFC radio frequency antenna and the NFC radio frequency chip; the radio frequency matching circuit comprises a radio frequency amplifying circuit, and the radio frequency amplifying circuit is used for enhancing the electromagnetic field intensity of the NFC radio frequency antenna; the NFC radio frequency chip is used for converting the electromagnetic signals acquired by the NFC radio frequency antenna into NFC data and then sending the NFC data to the core circuit board module.
Further, the NFC radio frequency circuit further comprises a security encryption chip, and the security encryption chip is used for encrypting the NFC data converted by the NFC radio frequency chip and then sending the encrypted NFC data to the core circuit board module.
Further, the NFC radio frequency antenna is connected with the NFC radio frequency circuit through a flexible FPC flat cable.
Further, the NFC radio frequency interface circuit is connected between the NFC radio frequency circuit and the core circuit board module and used for transmitting the NFC data.
Further, the NFC radio frequency interface circuit is connected with the NFC radio frequency circuit through a flexible FPC flat cable.
Further, the NFC radio frequency interface circuit is connected with the core circuit board module through a flexible FPC flat cable.
According to the wearable device of the embodiment, the NFC radio frequency antenna is arranged between the display screen and the core circuit board module, and the anti-metal shielding pad is additionally arranged between the NFC radio frequency antenna and the core circuit board module, so that the receiving magnetic field intensity of the coil antenna is increased, the induction distance of the coil antenna is increased, the NFC function stability of the wearable device can be improved, the size of the wearable device can be reduced, and the production process of the wearable device is simplified.
Drawings
Fig. 1 is a schematic structural diagram of a wearable smart watch;
FIG. 2 is a schematic cross-sectional view of a smart watch in one embodiment;
fig. 3 is a schematic structural diagram of an NFC rf module of the wearable device in an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
In this application embodiment, set up NFC radio frequency antenna between display screen 1 and core circuit board module to increase anti metallic shield pad between NFC radio frequency antenna and core circuit board module, with the induction distance that increases coil antenna received magnetic field intensity and improved coil antenna, and then not only can improve wearable equipment's NFC functional stability, can also reduce wearable equipment's volume and simplify wearable equipment wrist-watch's production technology.
Example one
Wearable devices are various, and basically have partial computing functions, and are in the form of portable accessories which can be connected with mobile phones and various terminals, wherein the mainstream products are in the forms of watches (for example, wrist band products such as watches and bracelets), shoes (for example, shoes, socks or other products worn on legs) supported by feet, glasses (for example, eyes, helmets or head bands) supported by heads, and various non-mainstream products such as smart clothes, bags, crutches and accessories. No matter which kind of wearable equipment basically all includes the area body and equipment main part, and the equipment main part includes casing, display screen, core circuit board module and backshell. The core circuit board module is arranged inside the shell and between the display screen and the back shell. In the embodiment of the present application, taking a smart watch as an example, please refer to fig. 2, which is a schematic cross-sectional view of the smart watch in an embodiment, including a band 4 and a device body, where the band 4 is used for fixedly connecting the device body when a wearable device is worn. The equipment main part includes casing 2, display screen 1, core circuit board module 5, NFC radio frequency module and backshell 3. The display screen 1 and the back case 3 are provided on the housing 2. The core circuit board module 5 is disposed in the housing 2 and between the display screen 1 and the back case 3. The NFC radio frequency module is electrically connected with the core circuit board module 5 and used for providing an NFC function for the wearable device. The NFC radio frequency module comprises an NFC radio frequency antenna, and the NFC radio frequency antenna is arranged between the display screen 1 and the core circuit board module 5. NFC radio frequency antenna includes coil antenna 7 and anti metallic shield pad 6, and the laminating of coil antenna 7 sets up at the back of display screen 1, and anti metallic shield pad 6 sets up between coil antenna 7 and core circuit board module 5. The anti-metal shielding pad 6 is used for reducing the absorption of the core circuit board module 5 to the NFC radio frequency signal and increasing the induction distance of the NFC radio frequency antenna. The anti-metal shielding pad 6 is made of a carbon-based wave-absorbing material, an iron-based wave-absorbing material, a ceramic-based wave-absorbing material, a conductive polymer, a chiral material and/or a plasma material. In an embodiment, the anti-metal shielding pad is preferably made of a ferrite electromagnetic shielding material and/or a graphene electromagnetic shielding material, the ferrite electromagnetic shielding material is a magnetic sheet material formed by sintering at a high temperature and mainly made of magnetic iron oxide, the material has a certain magnetic permeability, and the induction distance between the magnetic field intensity and a receiver can be effectively increased through a magnetic field, so that the negative influence of metal on the NFC radio frequency module can be eliminated by utilizing the excellent magnetic permeability of ferrite and enhancing the electromagnetic wave frequency through isolating metal. In one embodiment, the thickness of the anti-metal shielding pad 6 is not more than 0.3mm, preferably 0.08mm, 0.1mm, 0.2mm or 0.3 mm. In one embodiment, the shape of the anti-metal shielding pad 6 is the same as that of the coil antenna 7, and the coil antenna 7 is a loop structure, preferably a flexible FPC circuit. The anti-metal shielding pad 6 is identical to the flexible FPC circuit of the coil antenna 7 in shape and is bonded by double-sided adhesive. The loop structure of the anti-metal shielding gasket 6 is preferably slightly larger than the flexible FPC circuit of the coil antenna 7.
Referring to fig. 3, a schematic structural diagram of an NFC rf module of a wearable device in an embodiment is shown, in the embodiment of the present application, the NFC rf module includes an NFC rf antenna 70, an NFC rf circuit 71, and an NFC interface circuit 72. The NFC radio circuit 71 includes a radio frequency matching circuit and an NFC radio chip 73. The radio frequency matching circuit is connected between the NFC radio frequency antenna 70 and the NFC radio frequency chip 73, and includes a radio frequency amplification circuit for enhancing the electromagnetic field intensity of the NFC radio frequency antenna 70. The NFC radio frequency chip 73 is configured to convert the electromagnetic signal acquired by the NFC radio frequency antenna 70 into NFC data and send the NFC data to a core circuit board module of the wearable device. In an embodiment, the NFC radio frequency circuit 71 further includes a secure encryption chip 74, and the secure encryption chip 74 is configured to encrypt the NFC data converted by the NFC radio frequency chip 73 and send the encrypted NFC data to a core circuit board module of the wearable device. In one embodiment, the NFC rf antenna 70 is connected to the NFC rf circuit through a flexible FPC cable. The NFC radio frequency interface circuit is connected between the NFC radio frequency circuit and a core circuit board module of the wearable device and used for transmitting NFC data. In one embodiment, the NFC radio frequency interface circuit is connected to the NFC radio frequency circuit through a flexible FPC cable, and the NFC radio frequency interface circuit is connected to the core circuit board module of the wearable device through a flexible FPC cable.
In the embodiment of the application, a wearable equipment with NFC function is disclosed, including the area body and the equipment principal of connecting, the equipment principal includes casing, display screen, core circuit board module, NFC radio frequency module and dorsal scale. The core circuit board module is arranged in the shell and between the display screen and the back shell. The NFC radio frequency module comprises an NFC radio frequency antenna, the NFC radio frequency antenna comprises a coil antenna and an anti-metal shielding pad, the coil antenna is attached to the back face of the display screen, and the anti-metal shielding pad is arranged between the coil antenna and the core circuit board module. The anti-metal shielding pad is used for reducing the absorption of the core circuit board module to the NFC radio frequency signal and increasing the induction distance of the NFC radio frequency antenna. Because set up the coil antenna between display screen and core circuit board module to increase anti metallic shield pad between coil antenna and core circuit board module, with the induction distance that increases coil antenna received magnetic field intensity and improved coil antenna, and then not only can improve wearable equipment NFC functional stability, can also reduce wearable equipment's volume.
The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.
Claims (10)
1. A wearable device with NFC function, characterized by comprising a belt body and a device main body; the band body is used for being fixedly connected with the equipment main body when the wearable equipment is worn;
the equipment main body comprises a shell, a display screen, a core circuit board module, an NFC radio frequency module and a back shell; the display screen and the back shell are arranged on the shell; the core circuit board module is arranged in the shell and between the display screen and the back shell; the NFC radio frequency module is electrically connected with the core circuit board module and is used for providing an NFC function for the wearable equipment;
the NFC radio frequency module comprises an NFC radio frequency antenna, and the NFC radio frequency antenna is arranged between the display screen and the core circuit board module; the NFC radio frequency antenna comprises a coil antenna and an anti-metal shielding pad, the coil antenna is attached to the back of the display screen, and the anti-metal shielding pad is arranged between the coil antenna and the core circuit board module; the anti-metal shielding pad is used for reducing the absorption of the core circuit board module to NFC radio frequency signals and increasing the induction distance of the NFC radio frequency antenna.
2. The wearable device of claim 1, wherein the anti-metal shielding pad is made of a carbon-based absorbing material, an iron-based absorbing material, a ceramic-based absorbing material, a conductive polymer, a chiral material, and/or a plasma material.
3. The wearable device of claim 1, wherein the anti-metal shielding pad comprises ferrite electromagnetic shielding material and/or graphene electromagnetic shielding material.
4. The wearable device of claim 1, wherein a shape of the anti-metal shielding pad is the same as a shape of the coil antenna.
5. The wearable device of claim 1, wherein the NFC radio module further comprises NFC radio circuitry and NFC interface circuitry;
the NFC radio frequency circuit comprises a radio frequency matching circuit and an NFC radio frequency chip; the radio frequency matching circuit is connected between the NFC radio frequency antenna and the NFC radio frequency chip; the radio frequency matching circuit comprises a radio frequency amplifying circuit, and the radio frequency amplifying circuit is used for enhancing the electromagnetic field intensity of the NFC radio frequency antenna; the NFC radio frequency chip is used for converting the electromagnetic signals acquired by the NFC radio frequency antenna into NFC data and then sending the NFC data to the core circuit board module.
6. The wearable device of claim 5, wherein the NFC radio frequency circuit further comprises a secure encryption chip, and the secure encryption chip is configured to encrypt the NFC data converted by the NFC radio frequency chip and send the encrypted NFC data to the core circuit board module.
7. The wearable device of claim 5, wherein the NFC radio frequency antenna is connected with the NFC radio frequency circuit by a flexible FPC flex cable.
8. The wearable device of claim 5, wherein the NFC radio frequency interface circuit is connected between the NFC radio frequency circuit and the core circuit board module for transmitting the NFC data.
9. The wearable device of claim 8, wherein the NFC radio frequency interface circuit is connected to the NFC radio frequency circuit by a flexible FPC flex cable.
10. The wearable device of claim 8, wherein the NFC radio frequency interface circuit is connected to the core circuit board module by a flexible FPC flex cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371755.3U CN211128572U (en) | 2019-12-24 | 2019-12-24 | Wearable equipment with NFC function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922371755.3U CN211128572U (en) | 2019-12-24 | 2019-12-24 | Wearable equipment with NFC function |
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| Publication Number | Publication Date |
|---|---|
| CN211128572U true CN211128572U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922371755.3U Active CN211128572U (en) | 2019-12-24 | 2019-12-24 | Wearable equipment with NFC function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072304A (en) * | 2020-10-20 | 2020-12-11 | 北京字节跳动网络技术有限公司 | Terminal device |
| CN112928436A (en) * | 2021-02-01 | 2021-06-08 | 维沃移动通信有限公司 | Electronic device |
| CN112995374A (en) * | 2021-02-09 | 2021-06-18 | 维沃移动通信有限公司 | Display module and electronic equipment |
| CN114828390A (en) * | 2022-05-12 | 2022-07-29 | 信利光电股份有限公司 | FPC (flexible printed circuit), display module and electronic equipment with NFC (near field communication) antenna |
| WO2023039970A1 (en) * | 2021-09-15 | 2023-03-23 | 日立江森自控空调有限公司 | Controller |
-
2019
- 2019-12-24 CN CN201922371755.3U patent/CN211128572U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072304A (en) * | 2020-10-20 | 2020-12-11 | 北京字节跳动网络技术有限公司 | Terminal device |
| CN112072304B (en) * | 2020-10-20 | 2023-02-28 | 北京字节跳动网络技术有限公司 | Terminal device |
| CN112928436A (en) * | 2021-02-01 | 2021-06-08 | 维沃移动通信有限公司 | Electronic device |
| CN112928436B (en) * | 2021-02-01 | 2023-05-26 | 维沃移动通信有限公司 | Electronic equipment |
| CN112995374A (en) * | 2021-02-09 | 2021-06-18 | 维沃移动通信有限公司 | Display module and electronic equipment |
| CN112995374B (en) * | 2021-02-09 | 2023-12-08 | 维沃移动通信有限公司 | Display module and electronic equipment |
| WO2023039970A1 (en) * | 2021-09-15 | 2023-03-23 | 日立江森自控空调有限公司 | Controller |
| CN114828390A (en) * | 2022-05-12 | 2022-07-29 | 信利光电股份有限公司 | FPC (flexible printed circuit), display module and electronic equipment with NFC (near field communication) antenna |
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