Nfc band for smartwatch and smartwatch

Abstract

This utility model discloses an NFC watchband for a smartwatch and a smartwatch. The watchband includes: a first watchband head and a second watchband head, which are respectively used to fix the watchband head to both ends of the watch face; wherein, the first watchband head includes a pointed tip, and the second watchband head includes a buckle; a watchband cap, which is sleeved on the second watchband head, and in use, the pointed tip of the first watchband head and the second watchband head form a closed loop, with the pointed tip of the first watchband head passing through the watchband cap, which fixes the pointed tip of the first watchband head; the watchband cap is made of non-metallic material, and the interior of the watchband cap has a first hollow structure; an NFC antenna, which is embedded inside the first hollow structure of the watchband cap; the NFC antenna is made of multiple layers of metal wire wound into a spiral coil structure; the NFC antenna interacts with the watch's main controller via NFC. This utility model improves the signal quality and stability of NFC.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable technology, and in particular to an NFC watch strap for a smartwatch and a smartwatch. Background Technology

[0002] With technological advancements and improved living standards, smartwatches are becoming increasingly accepted by consumers. Correspondingly, people have higher demands for the functionality of smartwatches, such as better signal quality and stability. However, the NFC functionality in existing smartwatches is susceptible to electromagnetic interference from other components, resulting in poor signal quality and stability. Utility Model Content

[0003] This invention provides an NFC watchband for a smartwatch and a smartwatch to improve the signal quality and stability of NFC.

[0004] According to one aspect of the present invention, an NFC watchband for a smartwatch is provided, comprising:

[0005] A first strap end and a second strap end, which are respectively used to fix the watch face to both ends; wherein, the first strap end includes a pointed tip, and the second strap end includes a buckle;

[0006] The watch strap cap is fitted onto the second watch strap end. In use, the tip of the first watch strap end and the second watch strap end form a closed loop, and the tip of the first watch strap end passes through the watch strap cap. The watch strap cap fixes the tip of the first watch strap end. The watch strap cap is made of non-metallic material, and the interior of the watch strap cap has a first hollow structure.

[0007] An NFC antenna is embedded inside the first hollow structure of the watch band cap; the NFC antenna is made of multiple layers of metal wires wound into a spiral coil structure; the NFC antenna interacts with the watch's main controller via NFC.

[0008] Optionally, the watch strap cap includes a first planar structure located outside the second watch strap head, a second planar structure located inside the second watch strap head, and a first arc-shaped structure and a second arc-shaped structure located at the edge of the watch strap head;

[0009] The first planar structure, the first arc-shaped structure, the second planar structure, and the second arc-shaped structure are connected in sequence to form the watch strap cap.

[0010] Optionally, the first hollow structure of the watch band cap is located within the first planar structure of the watch band cap, the NFC antenna is located inside the first hollow structure within the first planar structure, and the spiral coil structure of the NFC antenna is a planar spiral coil structure.

[0011] Alternatively, the first hollow structure of the watchband cap is located within the second planar structure of the watchband cap, the NFC antenna is located inside the first hollow structure within the second planar structure, and the spiral coil structure of the NFC antenna is a planar spiral coil structure.

[0012] Optionally, the first hollow structure of the watch band cap is located within the first planar structure, the first arc-shaped structure, the second planar structure, and the second arc-shaped structure, the NFC antenna is located inside the first hollow structure, and the spiral coil structure of the NFC antenna is a three-dimensional spiral coil structure.

[0013] Optionally, the NFC antenna further includes an insulating protective layer disposed on the outer layer of the metal conductor.

[0014] Optionally, the NFC antenna further includes a magnetic shielding layer disposed on the outer layer of the metal conductor.

[0015] Optionally, the NFC antenna further includes an impedance matching element, which is connected in series and / or in parallel with the metal wire;

[0016] The impedance matching elements include capacitors and / or inductors.

[0017] Optionally, the NFC watch band of the smartwatch further includes: a Bluetooth chip, which is embedded inside the first hollow structure of the band cap, and the NFC antenna is coupled to the Bluetooth chip; the NFC antenna interacts with the watch's main controller via the Bluetooth chip.

[0018] Optionally, the NFC band for the smartwatch may also include: a flexible printed circuit board;

[0019] The second strap end is also provided with a second hollow structure, and the flexible printed circuit board is embedded in the second hollow structure; one end of the flexible printed circuit board is coupled to the NFC antenna, and the other end of the flexible printed circuit board is coupled to the watch main controller; the NFC antenna is electrically connected through the flexible printed circuit board.

[0020] According to another aspect of the present invention, a smartwatch is provided, comprising: an NFC watchband as described in any embodiment of the present invention.

[0021] This embodiment of the invention places the NFC antenna of the smartwatch in the watchband cap. Specifically, the inside of the watchband cap has a first hollow structure, and the NFC antenna is embedded inside the first hollow structure of the watchband cap. This arrangement can achieve at least the following beneficial effects:

[0022] Firstly, by placing the NFC antenna at a location far from the watch face, the installation position of the NFC antenna is optimized, reducing electromagnetic interference from other electronic components inside the watch face and improving the anti-interference capability of the NFC antenna. This, in turn, improves the signal quality and stability of the NFC antenna, enabling the NFC function of the smartwatch to operate reliably in various environments, achieving more stable and efficient near-field communication, accelerating the response speed of the NFC function, and increasing the recognition success rate.

[0023] Secondly, this utility model embodiment makes full use of the hollow space of the watch strap cap, without occupying the space inside the watch face, providing more space for the layout of other electronic components inside the watch face, which is conducive to the smart watch achieving richer functions.

[0024] Thirdly, the integration method of this utility model, which integrates the NFC antenna into the watch band cap, is simple and facilitates manufacturing and assembly. Furthermore, it can be adapted to smartwatches of different styles and sizes, exhibiting wide applicability and improving the overall design rationality and user experience of the smartwatch.

[0025] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a smartwatch strap provided for an embodiment of this utility model;

[0028] Figure 2 A schematic diagram of the structure of a watch strap cap provided in an embodiment of this utility model;

[0029] Figure 3 This is a schematic diagram of another watch band cap provided in an embodiment of the present utility model;

[0030] Figure 4A schematic diagram of the structure of a smartwatch strap provided for an embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of another watch strap cap provided in an embodiment of the present utility model. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] This utility model embodiment provides an NFC watch band for a smartwatch. Figure 1 This is a schematic diagram of the structure of a smartwatch strap provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a watch band cap provided in an embodiment of this utility model. See also... Figure 1 and Figure 2 The smartwatch's strap includes:

[0035] First watch strap head ( Figure 1 (not shown) and a second strap end 100, the first strap end and the second strap end 100 are respectively used to fix to both ends of the watch dial; wherein, the first strap end includes a pointed tip, and the second strap end 100 includes a buckle 110;

[0036] The watch strap cap 200 is fitted onto the second watch strap end 100. In use, the tip of the first watch strap end and the second watch strap end 100 form a closed loop, and the tip of the first watch strap end passes through the watch strap cap 200, which secures the tip of the first watch strap end. The watch strap cap 200 is made of non-metallic material and has a first hollow structure inside.

[0037] The NFC antenna 300 is embedded inside the first hollow structure of the watch band cap 200; the NFC antenna 300 is made of multiple layers of metal wires wound into a spiral coil structure; the NFC antenna 300 interacts with the watch's main controller via NFC.

[0038] In this embodiment of the invention, the NFC antenna 300 of the smartwatch is disposed within the strap cap 200. Specifically, the strap cap 200 has a first hollow structure inside, and the NFC antenna 300 is embedded within the first hollow structure of the strap cap 200. This arrangement achieves at least the following beneficial effects:

[0039] Firstly, by placing the NFC antenna 300 at a position far from the watch face, the installation location of the NFC antenna 300 is optimized, reducing electromagnetic interference from other electronic components inside the watch face and improving the anti-interference capability of the NFC antenna 300. This, in turn, improves the signal quality and stability of the NFC antenna 300, enabling the NFC function of the smartwatch to operate reliably in various environments, achieving more stable and efficient near-field communication, accelerating the response speed of the NFC function, and increasing the recognition success rate.

[0040] Secondly, this utility model embodiment makes full use of the hollow space of the strap cap 200, without occupying the space inside the watch face, providing more space for the layout of other electronic components inside the watch face, which is conducive to the smart watch achieving richer functions.

[0041] Thirdly, the integration method of this utility model, which integrates the NFC antenna 300 into the watch band cap 200, is simple and facilitates manufacturing and assembly. Furthermore, it can be adapted to smartwatches of different styles and sizes, exhibiting wide applicability and improving the overall design rationality and user experience of the smartwatch.

[0042] In the above embodiments, the structure and parameters of the NFC antenna 300 can be flexibly adjusted according to different styles and sizes of watch strap caps 200, which will be described in detail below.

[0043] See also Figure 1 and Figure 2Optionally, the watch strap cap 200 includes a first planar structure 210 located outside the second watch strap end 100, a second planar structure 220 located inside the second watch strap end 100, and a first arc-shaped structure 230 and a second arc-shaped structure 240 located at the edge of the watch strap end; the first planar structure 210, the first arc-shaped structure 230, the second planar structure 220 and the second arc-shaped structure 240 are connected in sequence to form the watch strap cap 200.

[0044] Based on the above embodiments, there are various ways to set up the NFC antenna 300. Several of them will be described below, but they are not intended to limit the present invention.

[0045] See also Figure 2 In one embodiment, optionally, the first hollow structure of the watch band cap 200 is located within the first planar structure 210 of the watch band cap 200, the NFC antenna 300 is located inside the first hollow structure within the first planar structure, and the spiral coil structure of the NFC antenna 300 is a planar spiral coil structure.

[0046] For example, the spiral coil of the NFC antenna 300 forms a rectangular ring structure. Correspondingly, the first hollow structure can be configured as a ring groove structure or a rectangular groove structure. Alternatively, the first hollow structure can be configured as a ring cavity structure or a rectangular cavity structure.

[0047] In another embodiment, the spiral coil of the NFC antenna 300 forms a circular ring structure. Correspondingly, the first hollow structure can be configured as a ring groove structure or a circular groove structure. Alternatively, the first hollow structure can be configured as a ring cavity structure or a circular cavity structure.

[0048] In another embodiment, with Figure 2 The structures shown are similar. The first hollow structure of the watch band cap 200 is located inside the second planar structure 220 of the watch band cap 200. The NFC antenna 300 is located inside the first hollow structure within the second planar structure 220. The spiral coil structure of the NFC antenna 300 is a planar spiral coil structure.

[0049] Figure 3 A schematic diagram of another watch band cap provided in an embodiment of this utility model. See also... Figure 3 In another embodiment, optionally, the first hollow structure of the watch band cap 200 is located within the first planar structure 210, the first arc-shaped structure 230, the second planar structure 220, and the second arc-shaped structure 240, and the NFC antenna 300 is located inside the first hollow structure, and the spiral coil structure of the NFC antenna 300 is a three-dimensional spiral coil structure.

[0050] Specifically, the spiral coil of the NFC antenna 300 sequentially passes around the first planar structure 210, the first arc-shaped structure 230, the second planar structure 220, and the second arc-shaped structure 240 to form a three-dimensional spiral coil structure; or the spiral coil of the NFC antenna 300 sequentially passes around the first planar structure 210, the second arc-shaped structure 240, the second planar structure 220, and the first arc-shaped structure 230 to form a three-dimensional spiral coil structure.

[0051] Accordingly, a first planar groove is provided in the first planar structure 210, a first arcuate groove is provided in the first arcuate structure 230, a second planar groove is provided in the second planar structure 220, and a second arcuate groove is provided in the second arcuate structure 240. The first planar groove, the first arcuate groove, the second planar groove, and the second arcuate groove are interconnected to accommodate the helical coil structure of the NFC antenna. Alternatively, a first planar cavity is provided in the first planar structure 210, a first arcuate cavity is provided in the first arcuate structure 230, a second planar cavity is provided in the second planar structure 220, and a second arcuate cavity is provided in the second arcuate structure 240. The first planar cavity, the first arcuate cavity, the second planar cavity, and the second arcuate cavity are interconnected to accommodate the helical coil structure of the NFC antenna.

[0052] Based on the above embodiments, optionally, the NFC antenna 300 further includes an insulating protective layer disposed on the outer layer of the metal conductor. Exemplarily, the insulating protective layer may be made of insulating materials such as polyimide or epoxy resin to protect the NFC antenna 300, preventing short circuits between the NFC antenna 300 and other components of the smartwatch, while also enhancing the mechanical strength and durability of the NFC antenna 300, thereby further improving the reliability of the smartwatch's NFC function.

[0053] Based on the above embodiments, optionally, the NFC antenna 300 further includes a magnetic shielding layer disposed on the outer layer of the metal conductor. Specifically, the shape and size of the magnetic shielding layer match the NFC antenna 300, covering the NFC antenna 300 to form a closed magnetic shielding space. Exemplarily, the magnetic shielding layer can be made of a high-permeability material, such as ferrite, which can effectively shield the NFC antenna 300 from external magnetic field interference, while reducing the impact of the magnetic field generated by the NFC antenna 300 on other components of the smartwatch. Therefore, this embodiment of the invention further improves anti-interference capability and enhances the radiation performance of the NFC antenna.

[0054] Based on the above embodiments, optionally, the NFC antenna 300 further includes an impedance matching element, which is connected in series and / or in parallel with the metal wire; the impedance matching element includes a capacitor and / or an inductor. Specifically, by adding matching capacitors or inductors to the circuit of the NFC antenna 300, the input impedance of the NFC antenna is adjusted to match the output impedance of the NFC chip, reducing signal reflection and improving power transmission efficiency. Exemplarily, the parameters of the matching element are optimized through simulation and experimentation to ensure optimal impedance matching within the operating frequency band of the smartwatch.

[0055] Based on the above embodiments, there are various ways for the NFC antenna 300 and the main controller in the watch face to interact, which will be described in detail below, but this is not intended to limit the present invention.

[0056] In one embodiment, the NFC watch band may optionally include a Bluetooth chip embedded within the first hollow structure of the watch band cap 200, and the NFC antenna 300 is coupled to the Bluetooth chip; the NFC antenna 300 interacts with the watch's main controller via the Bluetooth chip. This configuration allows the NFC watch band to be set up without being limited by the mechanical connection method of the NFC antenna 300, providing flexibility in its setup.

[0057] Figure 4 A schematic diagram of the structure of a smartwatch strap provided for an embodiment of this utility model. See also... Figure 4 In another embodiment, optionally, the NFC watchband further includes a flexible printed circuit board 400; the second watchband head 100 is also provided with a second hollow structure, and the flexible printed circuit board 400 is embedded in the second hollow structure; one end of the flexible printed circuit board 400 is coupled to the NFC antenna 300, and the other end of the flexible printed circuit board 400 is coupled to the watch's main controller; the NFC antenna 300 is electrically connected through the flexible printed circuit board 400. The flexible printed circuit board 400 (FPC) has good flexibility, can adapt to the relative movement of the watchband head 200, and ensures reliable signal transmission.

[0058] Figure 5 A schematic diagram of another watch band cap provided in an embodiment of this utility model. See also... Figure 4 and Figure 5For example, the inner side of the strap cap 200 has a protrusion 201, and the flexible printed circuit board 400 has a connection hole 401. The protrusion 201 and the connection hole 401 are sized to match. The protrusion 201 and the pins of the NFC antenna 300 are connected by soldering or crimping. The connection hole of the flexible printed circuit board 400 is a conductive hole, capable of conducting electricity with the protrusion 201 on the strap cap 200. The other end of the flexible printed circuit board 400 is connected to the watch face via a connector. Specifically, there are multiple pairs of connection holes 401 on the flexible printed circuit board 400, which facilitates the flexible adjustment of the strap cap 200. It is understood that the multiple pairs of connection holes 401 are interconnected and have the same potential.

[0059] In summary, the embodiments of this utility model can achieve at least the following beneficial effects:

[0060] Firstly, by placing the NFC antenna 300 at a position far from the watch face, the installation location of the NFC antenna 300 is optimized, reducing electromagnetic interference from other electronic components inside the watch face and improving the anti-interference capability of the NFC antenna 300. This, in turn, improves the signal quality and stability of the NFC antenna 300, enabling the NFC function of the smartwatch to operate reliably in various environments, achieving more stable and efficient near-field communication, accelerating the response speed of the NFC function, and increasing the recognition success rate.

[0061] Secondly, this utility model embodiment makes full use of the hollow space of the strap cap 200, without occupying the space inside the watch face, providing more space for the layout of other electronic components inside the watch face, which is conducive to the smart watch achieving richer functions.

[0062] Thirdly, the integration method of this utility model, which integrates the NFC antenna 300 into the watch band cap 200, is simple and facilitates manufacturing and assembly. Furthermore, it can be adapted to smartwatches of different styles and sizes, exhibiting wide applicability and improving the overall design rationality and user experience of the smartwatch.

[0063] Fourthly, through the magnetic shielding layer and impedance matching design, this utility model embodiment further improves the radiation performance and power transmission efficiency of the NFC antenna 300, realizes more stable and efficient near-field communication, accelerates the response speed of NFC function, and further improves the recognition success rate.

[0064] Fifthly, the addition of an insulating protective layer and a magnetic shielding layer enhances the mechanical strength and anti-interference capability of the NFC antenna 300, extends its service life, and further improves the reliability of the smartwatch's NFC function.

[0065] This utility model embodiment also provides a smartwatch, which includes an NFC watchband as provided in any embodiment of this utility model. Its technical principle and the effects produced are similar, and will not be described again.

[0066] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0067] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An NFC band for a smart watch, the NFC band comprising: include: A first strap end and a second strap end, which are respectively used to fix the watch face to both ends; wherein, the first strap end includes a pointed tip, and the second strap end includes a buckle; The watch strap cap is fitted onto the second watch strap end. In use, the tip of the first watch strap end and the second watch strap end form a closed loop, and the tip of the first watch strap end passes through the watch strap cap. The watch strap cap fixes the tip of the first watch strap end. The watch strap cap is made of non-metallic material, and the interior of the watch strap cap has a first hollow structure. An NFC antenna is embedded inside the first hollow structure of the watch band cap; the NFC antenna is made of multiple layers of metal wires wound into a spiral coil structure; the NFC antenna interacts with the watch's main controller via NFC. 2.The NFC band of a smart watch according to claim 1, wherein, The watch band cap includes a first planar structure located outside the second watch band head, a second planar structure located inside the second watch band head, and a first arc-shaped structure and a second arc-shaped structure located at the edge of the watch band head; The first planar structure, the first arc-shaped structure, the second planar structure, and the second arc-shaped structure are connected in sequence to form the watch strap cap. 3.The NFC band of the smart watch of claim 2, wherein, The first hollow structure of the watch band cap is located within the first planar structure of the watch band cap, the NFC antenna is located inside the first hollow structure within the first planar structure, and the spiral coil structure of the NFC antenna is a planar spiral coil structure. Alternatively, the first hollow structure of the watchband cap is located within the second planar structure of the watchband cap, the NFC antenna is located inside the first hollow structure within the second planar structure, and the spiral coil structure of the NFC antenna is a planar spiral coil structure. 4.The NFC band of a smart watch according to claim 2, wherein, The first hollow structure of the watch band cap is located within the first planar structure, the first arc-shaped structure, the second planar structure, and the second arc-shaped structure. The NFC antenna is located inside the first hollow structure, and the spiral coil structure of the NFC antenna is a three-dimensional spiral coil structure. 5.The NFC band of a smart watch according to claim 1, wherein, The NFC antenna further includes an insulating protective layer disposed on the outer layer of the metal conductor. 6.The NFC band of a smart watch according to claim 1, wherein, The NFC antenna further includes a magnetic shielding layer disposed on the outer layer of the metal wire. 7.The NFC band of a smart watch according to claim 1, wherein, The NFC antenna further includes an impedance matching element, which is connected in series and / or in parallel with the metal wire; The impedance matching elements include capacitors and / or inductors.

8. The NFC watchband for a smartwatch according to claim 1, characterized in that, Also includes: A Bluetooth chip is embedded inside the first hollow structure of the watch band cap, and an NFC antenna is coupled to the Bluetooth chip; the NFC antenna interacts with the watch's main controller via the Bluetooth chip. 9.The NFC band of the smart watch of claim 1, wherein, Also includes: Flexible printed circuit boards; The second strap end is also provided with a second hollow structure, and the flexible printed circuit board is embedded in the second hollow structure; One end of the flexible printed circuit board is coupled to the NFC antenna, and the other end of the flexible printed circuit board is coupled to the watch main controller; The NFC antenna is electrically connected by the flexible printed circuit board.

10. A smart watch, characterized by Comprising: The NFC band of any of claims 1-9.

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