A smartwatch strap with solar charging capability

Abstract

This utility model relates to a smart watch strap with solar charging function, comprising: a flexible strap body, on which at least one flexible solar panel is disposed, the flexible solar panel being compositely connected to the strap body via a flexible adhesive layer; positive and negative lead wires of the flexible solar panel extending along the length of the strap, the ends of the lead wires being connected to a charging interface; the charging interface having a physical structure and electrical parameters matching the charging port of a smart watch; a hollow rotating shaft disposed at the connection end of the strap body corresponding to the smart watch body, the lead wires passing through the internal cavity of the hollow rotating shaft and connecting to the charging interface; the flexible solar panel is composed of multiple monocrystalline silicon cell units connected in series, with an overall output voltage range of 1.2-1.8V and a maximum output current of 50-80mA. This utility model incorporates a solar panel in the strap, which is adhesively attached to the strap, allowing the watch strap to charge the watch promptly.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable technology, and more specifically, to a smart watch strap with solar charging function. Background Technology

[0002] As modern people become increasingly fond of sports, electronic watches are becoming more and more popular and widely used. To avoid electronic watches running out of power outdoors, they can be charged by basking in sunlight, which is convenient and saves electricity. Utility Model Content

[0003] The purpose of this invention is to propose a smart watch strap with solar charging function, aiming to provide an integrated charging watch that is easy to charge.

[0004] Specifically, the technical solution of this utility model is as follows: a smart watch strap with solar charging function is proposed, comprising: a flexible strap body, on the outer surface of which at least one flexible solar panel is disposed, the flexible solar panel being compositely connected to the strap body through a flexible adhesive layer; positive and negative lead wires of the flexible solar panel extending along the length of the strap, the ends of the lead wires being connected to a charging interface; the charging interface having a physical structure and electrical parameters matching the charging port of a smart watch; a hollow rotating shaft being disposed at the connection end of the strap body corresponding to the main body of the smart watch, the lead wires passing through the internal cavity of the hollow rotating shaft and connecting to the charging interface; the flexible solar panel being composed of multiple monocrystalline silicon cell units connected in series, with an overall output voltage range of 1.2-1.8V and a maximum output current of 50-80mA.

[0005] As a preferred technical solution, the flexible solar panel adopts a serpentine array arrangement, consisting of 3-5 independent battery units connected in series by flexible conductive tape, with a spacing of 0.5-1.5mm between adjacent battery units; the surface of the battery unit is covered with an optically transparent protective layer with a light transmittance of ≥90% and a thickness of 0.2-0.5mm; the wire adopts a multi-core stranded structure, wrapped with an elastic corrugated tube, with a corrugated tube peak spacing of 0.8-1.2mm.

[0006] As a preferred technical solution, the hollow rotating shaft is provided with a wire guiding mechanism, which includes at least one set of symmetrically arranged ceramic rollers with an adjustable roller spacing of 0.5-1mm; the outer surface of the hollow rotating shaft is provided with an anti-slip texture with a texture depth of 0.1-0.3mm and a spacing of 0.5-1mm.

[0007] As a preferred technical solution, the flexible adhesive layer is a double-sided conductive adhesive film with a surface resistance ≤0.1Ω / cm. 2 .

[0008] As a preferred technical solution, the watch band body is embedded with an energy storage module, which includes at least two sets of supercapacitors, each with a capacity of 0.5-1F. The supercapacitors are connected to the solar panel through a bidirectional DC-DC converter. The conversion efficiency of the DC-DC converter is ≥85%, and the input voltage range is 0.8-2.5V.

[0009] As a preferred technical solution, the energy storage module is equipped with a wireless charging coil with a diameter of 8-12mm and 15-20 turns; the operating frequency of the wireless charging coil is 100-205kHz and the coupling coefficient is ≥0.8; the surface of the energy storage module is equipped with a photoelectric indicator device, which includes a multi-color LED array and a photosensitive sensor.

[0010] As a preferred technical solution, the wires are arranged in a spiral pattern within the watchband body, with a spiral spacing of 2-3mm; the spiral pattern forms a buffer ring at the bend of the watchband, with a radius of curvature of ≥1.5mm; the outer layer of the wires is covered with a nano-waterproof coating with a thickness of 5-10μm.

[0011] As a preferred technical solution, the charging interface is equipped with an intelligent identification module, which includes a voltage detection circuit and a current limiting circuit. The intelligent identification module can automatically identify the charging protocol of the target device and adapt to a voltage output range of 1.2-5V. The current limiting circuit adopts a field-effect transistor current limiting structure and limits the maximum current to 500mA.

[0012] As a preferred technical solution, the edge of the watch strap body is provided with a waterproof sealing strip, and the compression rate of the sealing strip is 30-50%.

[0013] As a preferred technical solution, the charging interface adopts a magnetic connection structure, which includes a ring magnet array and positioning protrusions, and the remanent magnet strength is 0.8-1.2T.

[0014] The beneficial effects of this utility model are: a solar panel is set in the watch strap of this utility model, and the solar panel is glued to the watch strap. Furthermore, an energy storage module is embedded in the watch strap itself, so this new watch strap can charge the watch in time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a smartwatch strap with solar charging function proposed in this embodiment of the present invention. Figure 1 ;

[0017] Figure 2 This is a top view schematic diagram of a smart watch strap with solar charging function proposed in an embodiment of the present invention;

[0018] Figure 3 This is a schematic cross-sectional view of the hollow rotating shaft structure proposed in an embodiment of the present utility model;

[0019] Figure 4 A three-dimensional structural diagram of a smartwatch strap with solar charging function proposed in this embodiment of the present invention. Figure 2 .

[0020] Explanation of reference numerals in the attached drawings: 1. Strap body; 2. Flexible adhesive layer; 3. Solar panel; 4. Charging interface; 5. Hollow rotating shaft; 51. Ceramic roller; 6. Dial; 7. Wire. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0022] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0023] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0024] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0025] It should be noted that "multiple" as mentioned in this article refers to two or more.

[0026] Example

[0027] like Figure 1-4 As shown in this embodiment, a smartwatch strap with solar charging function is proposed, comprising: a flexible strap body 1, to which a smartwatch body is connected, and a watch face 6 is disposed. At least one flexible solar panel 3 is disposed on the outer surface of the strap body 1, and the flexible solar panel 3 is compositely connected to the strap body 1 through a flexible adhesive layer 2; positive and negative lead wires 7 of the flexible solar panel 3 extend along the length of the strap, and the ends of the lead wires 7 are connected to a charging interface 4; the charging interface 4 has a physical structure and electrical parameters matching the charging port of the smartwatch; a hollow rotating shaft 5 is disposed at the connection end of the strap body 1 corresponding to the smartwatch body, and the lead wires 7 pass through the internal cavity of the hollow rotating shaft 5 and connect to the charging interface 4; the flexible solar panel 3 is composed of multiple monocrystalline silicon cell units connected in series, with an overall output voltage range of 1.2-1.8V and a maximum output current of 50-80mA. The lead wires 7 are disposed inside the flexible strap body 1. Specific steps and methods are selected based on the strap material and are not limited thereto.

[0028] Preferred, such as Figure 4 As shown, the flexible solar panel 3 adopts a serpentine array arrangement, consisting of 3-5 independent battery units connected in series by flexible conductive tape, with a spacing of 0.5-1.5mm between adjacent battery units; the surface of the battery unit is covered with an optically transparent protective layer with a light transmittance ≥90% and a thickness of 0.2-0.5mm; the conductor 7 adopts a multi-core stranded structure, wrapped with an elastic corrugated tube, with a corrugated tube peak spacing of 0.8-1.2mm.

[0029] Preferred, such as Figure 3 As shown, the hollow rotating shaft 5 has a guide wire 7 inside, which includes at least one set of symmetrically arranged ceramic rollers 51 with an adjustable roller spacing of 0.5-1mm; the outer surface of the rotating shaft is provided with an anti-slip texture with a texture depth of 0.1-0.3mm and a spacing of 0.5-1mm. The specific structure should be conceived and implemented by those skilled in the art based on the textual description, and will not be elaborated here.

[0030] Preferably, the flexible adhesive layer 2 is a double-sided conductive adhesive film with a surface resistance ≤0.1Ω / cm. 2 Furthermore, the conductive film can also embed temperature compensation elements, including a parallel combination of positive temperature coefficient thermistors and negative temperature coefficient thermistors; the operating temperature range of the temperature compensation elements is -20℃ to +60℃. This feature improves the environmental adaptability of the watch strap and makes it more comfortable to wear.

[0031] Preferably, the watchband body 1 has an embedded energy storage module containing at least two sets of supercapacitors, each with a capacity of 0.5-1F. The supercapacitors are connected to the solar panel 3 through a bidirectional DC-DC converter. The DC-DC converter has a conversion efficiency of ≥85% and an input voltage range of 0.8-2.5V.

[0032] Furthermore, the energy storage module is equipped with a wireless charging coil with a diameter of 8-12mm and 15-20 turns; the wireless charging coil operates at a frequency of 100-205kHz and has a coupling coefficient ≥0.8; the surface of the energy storage module is equipped with a photoelectric indicator device, which includes a multi-color LED array and a photosensitive sensor.

[0033] Preferably, the conductor 7 is arranged in a spiral pattern within the watchband body 1, with a spiral spacing of 2-3 mm. The spiral pattern forms a buffer loop at the bends of the watchband, with a radius of curvature ≥1.5 mm. The conductor 7 is coated with a nano-waterproof coating with a thickness of 5-10 μm. The spiral pattern provides greater stability and reduces the likelihood of the conductor 7 loosening due to pulling. Those skilled in the art will understand the specific structure described above, and it will not be elaborated further here.

[0034] Preferably, the charging interface 4 is equipped with an intelligent identification module, which includes a voltage detection circuit and a current limiting circuit; the intelligent identification module can automatically identify the charging protocol of the target device and the compatible voltage output range is 1.2-5V; the current limiting circuit adopts a field-effect transistor current limiting structure and limits the maximum current to 500mA.

[0035] Preferably, the edge of the watch strap body 1 may also be provided with a waterproof sealing strip, the compression rate of which is 30-50%. The specific structure will be conceived by those skilled in the art and will not be described in detail here.

[0036] Preferably, the charging interface 4 adopts a magnetic connection structure, including a ring magnet array and positioning protrusions, and the remanent magnet strength is 0.8-1.2T.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A smartwatch strap with solar charging function, characterized in that, include: A flexible watch strap body has at least one flexible solar panel disposed on its outer surface, and the flexible solar panel is compositely connected to the watch strap body through a flexible adhesive layer. The positive and negative leads of the flexible solar panel extend along the length of the watch band, and the ends of the leads are connected to the charging interface. The charging interface has a physical structure and electrical parameters that match the charging port of the smartwatch. The watch band body has a hollow rotating shaft at the connection end corresponding to the main body of the smartwatch, and the leads pass through the internal cavity of the hollow rotating shaft to connect to the charging interface. The flexible solar panel is composed of multiple monocrystalline silicon cell units connected in series, with an overall output voltage range of 1.2-1.8V and a maximum output current of 50-80mA.

2. The smart watch strap according to claim 1, characterized in that, The flexible solar panel adopts a serpentine array arrangement, consisting of 3-5 independent battery units connected in series by flexible conductive tape, with a spacing of 0.5-1.5mm between adjacent battery units; the surface of each battery unit is covered with an optically transparent protective layer with a light transmittance ≥90% and a thickness of 0.2-0.5mm; the wire adopts a multi-core stranded structure, wrapped with an elastic corrugated tube, with a corrugated tube crest spacing of 0.8-1.2mm.

3. The smart watch strap according to claim 1, characterized in that, The hollow rotating shaft is equipped with a wire guiding mechanism inside, which includes at least one set of symmetrically arranged ceramic rollers with an adjustable roller spacing of 0.5-1mm; the outer surface of the hollow rotating shaft is provided with an anti-slip texture with a texture depth of 0.1-0.3mm and a spacing of 0.5-1mm.

4. The smart watch strap according to claim 1, characterized in that, The flexible adhesive layer is a double-sided conductive adhesive film with a surface resistance of ≤0.1 Ω / cm 2 .

5. The smart watch strap according to claim 1, characterized in that, The watch band has an embedded energy storage module containing at least two sets of supercapacitors, each with a capacity of 0.5-1F. The supercapacitors are connected to the solar panel via a bidirectional DC-DC converter. The DC-DC converter has a conversion efficiency of ≥85% and an input voltage range of 0.8-2.5V.

6. The smart watch strap according to claim 5, characterized in that, The energy storage module is equipped with a wireless charging coil with a diameter of 8-12mm and 15-20 turns; the wireless charging coil operates at a frequency of 100-205kHz and has a coupling coefficient ≥0.8; the surface of the energy storage module is equipped with a photoelectric indicator device, which includes a multi-color LED array and a photosensitive sensor.

7. The smart watch strap according to claim 1, characterized in that, The conductors are arranged in a spiral pattern within the watchband body, with a spiral spacing of 2-3 mm. The spiral pattern forms a buffer loop at the bends of the watchband, with a radius of curvature ≥ 1.5 mm. The conductors are covered with a nano-waterproof coating with a thickness of 5-10 μm.

8. The smart watch strap according to claim 1, characterized in that, The charging interface is equipped with an intelligent identification module, which includes a voltage detection circuit and a current limiting circuit. The intelligent identification module can automatically identify the charging protocol of the target device and is compatible with a voltage output range of 1.2-5V. The current limiting circuit adopts a field-effect transistor current limiting structure and limits the maximum current to 500mA.

9. The smart watch strap according to claim 1, characterized in that, The watch strap body has a waterproof sealing strip on its edge, and the sealing strip has a compression rate of 30-50%.

10. The smart watch strap according to any one of claims 1-9, characterized in that, The charging interface adopts a magnetic connection structure, which includes a ring magnet array and positioning protrusions, and the remanent magnet strength is 0.8-1.2T.

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