Wireless charging system based on optical fiber energy transmission and application method thereof

Abstract

The invention provides a wireless charging system based on optical fiber energy transmission and an application method thereof, and the system comprises a light source device, an integrated optical cable, and a wireless charging node assembly disposed on the integrated optical cable. An embedded panel-level subsystem of the wireless charging node assembly converts an energy light beam conducted by an optical fiber into electric energy through a photocell, and an alternating magnetic field is transmitted outwards through an energy storage management unit and a wireless charging transmission transmitting end. And the wireless power transmission receiving end induces the alternating magnetic field to generate high-frequency alternating current and converts the high-frequency alternating current into direct current to supply power to a load. In the process of supplying energy to a load, transmission is carried out on a transmission line in the form of light energy, the influence of factors such as external environment temperature, a magnetic field and humidity is avoided, the energy supply stability and safety are ensured, and the energy transmission efficiency reaches 80%.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber energy supply technology, and in particular to a wireless charging system based on optical fiber energy transmission and an application method thereof. Background Art

[0002] Faced with an increasingly complex power consumption environment, the power supply of power-consuming equipment continues to face new challenges. The traditional power supply method is to use wires to draw electricity for power supply. However, the use of wires has defects such as difficulty in obtaining electricity and low safety. In addition, for some special application scenarios, the circuit deployment process is cumbersome, difficult, and cost-uncontrollable. For scenarios with low power demand but high necessity, large-scale or customized deployment of power supply networks does not meet actual needs. For example, for the control of smart home systems in buildings, traditional power supply methods will lead to complex lines, inconvenient management and maintenance, and reduce environmental safety. In medical scenarios, the development of endoscopic technology and minimally invasive surgery requires a safer and more stable power supply method. Traditional wire power supply has hidden dangers such as heating and leakage, and is not applicable. For example, in industrial automation scenarios, the power supply and control of smart devices, sensors or monitoring systems require extremely stable power supply, but the harsh environment of high temperature, high humidity, and strong electromagnetic interference in industrial scenarios will bring great risks to the form of wire power supply. Therefore, a new power supply system is urgently needed. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a wireless charging system based on optical fiber energy transmission and an application method thereof, so as to eliminate or improve one or more defects existing in the prior art and solve the problem that the existing wire power supply method is difficult to adapt to power supply scenarios with high temperature, high humidity, strong electromagnetic interference and high stability requirements.

[0004] One aspect of the present invention provides a wireless charging system based on optical fiber energy transmission, the wireless charging system based on optical fiber energy transmission comprising:

[0005] A light source device for generating an energy beam of one or more preset wavelengths;

[0006] An integrated optical cable, with a plurality of optical fibers inside, for transmitting the energy beam generated by the light source device;

[0007] A plurality of wireless charging node components, each of which is deployed on the integrated optical cable according to a preset position, and the wireless charging node components include an embedded board-level subsystem and a wireless power transmission receiving end, each of which is arranged inside the integrated optical cable and connected to an optical fiber; each of which is arranged outside the integrated optical cable and corresponds to the embedded board-level subsystem one by one;

[0008] The embedded board-level subsystem includes:

[0009] a photoelectric cell connected to the optical fiber to convert the energy beam of a preset wavelength into electrical energy;

[0010] An energy storage management unit connected to the photovoltaic cell for storing electrical energy;

[0011] A wireless charging transmission transmitting end, connected to the energy storage management unit, converting the first direct current of the energy storage management unit into a first high-frequency alternating current through an internal inverter circuit, and converting the first high-frequency alternating current into an alternating magnetic field of a preset resonant frequency through a parallel transmitting coil and a first resonant capacitor;

[0012] The wireless power transmission receiving end comprises:

[0013] A receiving coil and a second resonant capacitor connected in parallel with each other, used to induce the alternating magnetic field and convert it into a second high-frequency alternating current;

[0014] A rectifier circuit, converting the second high-frequency alternating current into a second direct current;

[0015] The regulating circuit is used for removing high frequency noise in the second direct current and supplying the second direct current to a load.

[0016] In some embodiments, the preset wavelength of the energy beam generated by the light source device is 808nm, 1150nm and / or 1310nm.

[0017] In some embodiments, the light source device comprises:

[0018] A laser diode, the output end of which is connected to the integrated optical cable and is used to generate an energy beam with a wavelength of 808nm;

[0019] and / or, a quantum cascade laser, the output end of which is connected to the integrated optical cable to generate an energy beam with a wavelength of 1150 nm;

[0020] and / or, a distributed feedback laser diode, the output end of which is connected to the integrated optical cable to generate an energy beam with a wavelength of 1310 nm;

[0021] and / or, an ytterbium-doped fiber amplifier, connected to the laser diode and the output end of the quantum cascade laser, for amplifying the energy beam with a wavelength of 808nm or 1150nm and introducing it into the integrated optical cable;

[0022] And / or, an erbium-doped fiber amplifier connected to the output end of the distributed feedback laser diode, for amplifying the energy beam with a wavelength of 1310nm and introducing it into the integrated optical cable. In some embodiments, the wireless charging system based on optical fiber energy transmission also includes:

[0023] A wavelength division multiplexer, used for combining or separating the energy beams of each preset wavelength;

[0024] The optical fiber collimator is used to guide the energy beam into the optical fiber.

[0025] In some embodiments, the wireless charging system based on optical fiber energy transmission also includes a graphene heat sink, which is arranged at the wireless charging transmission transmitting end and the wireless power transmission receiving end.

[0026] In some embodiments, the wireless charging node assembly is fixed to the integrated optical cable via a first shell, and the embedded board-level subsystem is disposed in the first shell; the first shell is detachably connected to the second shell, and the wireless power transmission receiving end is disposed in the second shell; the first shell and the second shell are provided with a metal grid to shield external electromagnetic interference.

[0027] In some embodiments, a magnet is arranged on the first shell according to a first set position, and a magnet is arranged on the second shell according to a second set position, the first set position corresponds to the second set position, and the relative position of the first shell and the second shell is maintained by magnetic attraction to ensure that the transmitting coil is aligned with the receiving coil.

[0028] In some embodiments, a power supply interface of a preset model is provided on the second shell, and the power supply interface is connected to the regulating circuit, and the power supply interface is used to connect an external load.

[0029] In some embodiments, the regulation circuit uses a low pass filter.

[0030] On the other hand, the present invention further provides an application method applicable to the above-mentioned wireless charging system based on optical fiber energy transmission, the method comprising:

[0031] Deploy the light source equipment in the wireless charging system based on optical fiber energy transmission according to the preset points;

[0032] Deploy the integrated optical cable in the wireless charging system based on optical fiber energy transmission according to a preset route, and deploy multiple wireless charging node components on the integrated optical cable at positions based on power supply requirements;

[0033] The load is connected to the wireless power transmission receiving end in the adjacent wireless charging node component, and the light source device is controlled to generate an energy beam and direct it into the corresponding optical fiber to power the load.

[0034] The beneficial effects of the present invention are at least:

[0035] The wireless charging system based on optical fiber energy transmission and its application method described in the present invention use a light source device to provide an energy beam of a preset wavelength, conduct the energy beam through an integrated optical cable integrated optical fiber, set a wireless charging node component on the integrated optical cable, convert the energy beam into electrical energy in the embedded board-level subsystem, and use wireless power supply to transmit power to the wireless power transmission receiving end outside the integrated optical cable to power the load. In the process of supplying energy to the load, the present invention transmits in the form of light energy on the transmission line, which will not be affected by factors such as external environmental temperature, magnetic field, humidity, etc., ensuring the stability and safety of energy supply and achieving an energy transmission efficiency of 80%.

[0036] Furthermore, laser diodes, quantum cascade lasers and / or distributed feedback laser diodes are set as light source devices, which can provide energy beams with wavelengths of 808nm, 1150nm and / or 1310nm to meet the energy supply needs in various scenarios.

[0037] Furthermore, a wavelength division multiplexer and a fiber collimator are used to introduce energy beams to improve the flexibility and accuracy of front-end energy supply.

[0038] Furthermore, a graphene heat sink is provided to ensure the temperature stability of the wireless power supply and maintain the power supply efficiency.

[0039] Furthermore, by providing a detachable first shell and a second shell, the load can be loaded flexibly. By providing a magnetic lock buckle, the transmitting coil and the receiving coil can be aligned under the premise of being detachable, thereby ensuring energy supply efficiency.

[0040] Additional advantages, purposes, and features of the present invention will be described in part in the following description, and will become apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention may be achieved and obtained by the structures specifically indicated in the specification and the accompanying drawings.

[0041] Those skilled in the art will appreciate that the objectives and advantages that can be achieved with the present invention are not limited to the above specific description, and the above and other objectives that can be achieved by the present invention will be more clearly understood from the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings:

[0043] Figure 1 The figure is a schematic diagram of the structure of a wireless charging system based on optical fiber energy transmission according to an embodiment of the present invention.

[0044] Figure 2 This is a schematic diagram of the connection relationship between the components in a wireless charging system based on optical fiber energy transmission according to another embodiment of the present invention.

[0045] Figure 3 This is a schematic diagram of the spatial relationship of various components in a wireless charging system based on optical fiber energy transmission according to another embodiment of the present invention.

[0046] Reference numerals:

[0047] 100: light source equipment; 200: integrated optical cable; 210: optical fiber;

[0048] 300: wireless charging node component; 310: photocell; 320: energy storage management unit;

[0049] 330: wireless power transmission transmitting end; 331: inverter circuit; 332: first resonant capacitor;

[0050] 333: transmitting coil; 340: wireless power transmission receiving end; 341: receiving coil;

[0051] 342: second resonant capacitor; 343: rectifier circuit; 344: regulating circuit;

[0052] 400: Load. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0054] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0055] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0056] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0057] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0058] The diversification of energy supply scenarios has put forward more requirements for the line deployment method. The traditional power supply method of wires has the problems of complex deployment process, easy heating and leakage, and susceptibility to high temperature, high humidity, and strong electromagnetic interference. In the technical fields of aerospace, industrial automation, medical equipment, remote monitoring and control, it is even more required to provide stable, safe and efficient electricity.

[0059] Therefore, the present invention provides a wireless charging system based on optical fiber energy transmission, such as Figure 1 , Figure 2 As shown, the wireless charging system based on optical fiber energy transmission includes: a light source device 100, an integrated optical cable 200 and a wireless charging node component 300.

[0060] The light source device 100 is used to generate an energy beam of one or more preset wavelengths. In some embodiments, the preset wavelength of the energy beam generated by the light source device 100 is 808 nm, 1150 nm and / or 1310 nm.

[0061] In some embodiments, the light source device 100 includes: a laser diode (LD), the output end of the laser diode is connected to the integrated optical cable 200, which is used to generate an energy beam with a wavelength of 808nm, and the power output can be from a few milliwatts to a few watts, with high efficiency, suitable for low-cost and compact design. And / or, a quantum cascade laser (QCL), the output end of the quantum cascade laser is connected to the integrated optical cable 200, which is used to generate an energy beam with a wavelength of 1150nm, with a wide tuning range and compact structure. And / or, a distributed feedback laser diode (DFB-LD), the output end of the distributed feedback laser diode is connected to the integrated optical cable 200, which is used to generate an energy beam with a wavelength of 1310nm, with stable output and precise wavelength, suitable for long-distance optical fiber communication. And / or, an ytterbium-doped fiber amplifier, connected to the output end of the laser diode and the quantum cascade laser, is used to amplify the energy beam with a wavelength of 808nm or 1150nm and introduce it into the integrated optical cable 200; and / or, an erbium-doped fiber amplifier, connected to the output end of the distributed feedback laser diode, is used to amplify the energy beam with a wavelength of 1310nm and introduce it into the integrated optical cable 200.

[0062] The present invention provides three wavelengths of power beams, namely, three energy levels, of 808nm, 1150nm, and 1310nm, to meet the needs of different application scenarios. Lasers of different wavelengths have different absorption, loss, and coupling characteristics, and can meet the needs of different devices and application scenarios. By using lasers of different wavelengths, compatibility with existing devices and systems can be achieved. The combined use of these three bands can optimize the overall performance in optical fiber power supply and communication, increase the redundancy of the system, and improve the reliability of the optical fiber power supply system in various working environments.

[0063] In some embodiments, the wireless charging system based on optical fiber energy transmission also includes: a wavelength division multiplexer and an optical fiber collimator, the wavelength division multiplexer is used to merge or separate energy beams of preset wavelengths, and the optical fiber collimator is used to guide the energy beam into the optical fiber, thereby improving the flexibility and accuracy of the front-end energy supply.

[0064] The integrated optical cable 200 is provided with a plurality of optical fibers 210 inside, which are used to conduct the energy beam generated by the light source device 100. The optical fibers 210 can be arranged in parallel, spirally, or in layers in the integrated optical cable 200. Among them, the parallel arrangement is easy to manufacture, suitable for shorter optical cable lengths, and simplifies the connection and distribution of the optical fibers 210. The spiral arrangement can effectively reduce the mutual interference between optical fibers and enhance the compression resistance and bending resistance of the optical cable. The layered arrangement can allocate optical fibers according to the needs of different applications and improve flexibility. The optical fiber type can be selected from single-mode optical fiber and multi-mode optical fiber according to the specific scenario. Single-mode optical fiber is suitable for long-distance transmission, and multi-mode optical fiber is suitable for short-distance and large bandwidth transmission. Each optical fiber can be provided with a protective cover to improve the compression and bending resistance. A buffer tube can be provided to separate the optical fibers 210 to reduce mutual interference, effectively absorb external forces, and enhance the toughness of the optical fiber.

[0065] Multiple wireless charging node components 300, each wireless charging node component 300 is deployed on the integrated optical cable 200 according to a preset position, the wireless charging node component 300 includes an embedded board-level subsystem and a wireless power transmission receiving end 340, each embedded board-level subsystem is arranged inside the integrated optical cable 200 and connected to an optical fiber; each wireless power transmission receiving end 340 is arranged outside the integrated optical cable 200 and is arranged one-to-one with the embedded board-level subsystem.

[0066] The embedded board-level subsystem includes: a photovoltaic cell 310, an energy storage management unit 320, and a wireless charging transmission transmitter. The photovoltaic cell 310 is connected to an optical fiber to convert an energy beam of a preset wavelength into electrical energy. The energy storage management unit 320 is connected to the photovoltaic cell 310 for storing electrical energy. The wireless charging transmission transmitter is connected to the energy storage management unit 320, converts the first direct current into a first high-frequency alternating current through an internal inverter circuit 331, and converts the first high-frequency alternating current into an alternating magnetic field of a preset resonant frequency through a parallel transmitting coil 333 and a first resonant capacitor 332.

[0067] The structure of the photovoltaic cell 310 is mainly composed of a light absorption layer, a pn junction and an electrode. The light absorption layer is usually composed of a semiconductor material, such as a silicon material, which can absorb light energy and excite electrons to generate electron-hole pairs. The pn junction separates the photogenerated carriers through a built-in electric field, and the electrons move to the n-type region and the holes move to the p-type region, thereby forming a current. The electrodes are connected to an external circuit, allowing current to flow and provide electrical energy to the load 400. Through this process, the photovoltaic cell 310 efficiently converts light energy into electrical energy. The energy storage management unit 320 may include a battery and a power control chip, and the capacity model of the battery can be set according to the specific application scenario.

[0068] Among them, the power source energy is provided by optical fiber energy transmission. When the energy provided by the light source device 100 is transmitted to the circuit front end of the embedded board-level subsystem, it is converted into photoelectricity by the photocell 310 and managed and stored by the energy storage management unit 320. The inverter circuit 331 converts direct current into high-frequency alternating current, and the operating frequency of the inverter circuit 331 is set to the resonant frequency of the magnetic resonance system. The transmitting coil 333L1 is connected in parallel with the first resonant capacitor 332C1 to determine the resonant frequency of the transmitting end and generate an alternating magnetic field at the resonant frequency.

[0069] The wireless power transmission receiving end 340 includes: a receiving coil 341, a second resonant capacitor 342, a rectifier circuit 343 and a regulating circuit 344. The receiving coil 341 and the second resonant capacitor 342 connected in parallel are used to induce an alternating magnetic field and convert it into a second high-frequency alternating current. The rectifier circuit 343 converts the second high-frequency alternating current into a second direct current. The regulating circuit 344 is used to remove high-frequency noise in the second direct current and supply it to the load 400. The regulating circuit 344 uses a low-pass filter.

[0070] The transmitting coil 333 and the receiving coil 341 use multi-turn coils or spiral coils to increase the inductance value, thereby enhancing the magnetic field strength, and select appropriate coil shapes (such as round, square or rectangular) to adapt to specific applications and improve coupling efficiency. Coils are made of highly conductive materials (such as copper, aluminum, etc.) to reduce energy loss. In some special application scenarios, the use of superconducting materials under low temperature conditions can eliminate resistance losses and further improve efficiency.

[0071] In some embodiments, the wireless charging system based on optical fiber energy transmission also includes a graphene heat sink, which is arranged at the wireless charging transmission transmitting end and the wireless power transmission receiving end 340. Temperature will affect the efficiency of wireless transmission of electric energy, and a good heat dissipation mechanism is designed to prevent the transmitting coil 333 and the capacitor from degrading performance due to overheating. Furthermore, a sensor can be set to monitor the operating temperature in real time to ensure that the system operates within a safe temperature range to avoid damage.

[0072] In some embodiments, Figure 3 As shown, the wireless charging node assembly 300 is fixed on the integrated optical cable 200 through a first shell, and the embedded board-level subsystem is arranged in the first shell; the first shell and the second shell are detachably connected, and the wireless power transmission receiving end 340 is arranged in the second shell; the first shell and the second shell are provided with a metal grid to shield external electromagnetic interference.

[0073] In some embodiments, a magnet is arranged on the first shell according to a first set position, and a magnet is arranged on the second shell according to a second set position, the first set position corresponds to the second set position, and the relative position of the first shell and the second shell is maintained by magnetic attraction to ensure that the transmitting coil 333 is aligned with the receiving coil 341. Specifically, the magnetic lock is a magnet arranged at a specified position of the first shell and the second shell, which can ensure that the first shell and the second shell are nested, contacted and fixed at the target position. In wireless power transmission, the alignment of the transmitting coil 333 and the receiving coil 341 is crucial, because good alignment can significantly improve the coupling efficiency. The alternating magnetic field generated by the transmitting coil 333 needs to be well coupled with the receiving coil 341 to ensure that more magnetic field lines pass through the receiving coil 341, thereby reducing energy loss and achieving efficient energy transmission. If the coils are not aligned, the receiving coil 341 will not be able to effectively capture the energy of the transmitting coil 333, resulting in unstable current and voltage output. In addition, alignment helps to keep the resonant frequency matching and further optimize the energy transmission performance. Therefore, ensuring good alignment of the transmitting and receiving coils 341 is the key to achieving efficient and stable wireless power transmission.

[0074] In some embodiments, a power supply interface of a preset model is provided on the second housing and connected to the regulating circuit 344 for connecting an external load 400. The model of the power supply interface can be set according to the specific application scenario, or a modular structure can be adopted for flexible disassembly and replacement.

[0075] Furthermore, the embedded board-level subsystem and the wireless power transmission receiving end 340 can be prepared in the form of an integrated circuit to reduce the size of the device and improve stability.

[0076] In order to realize the integration and miniaturization of the embedded board-level subsystem and the wireless power transmission receiving end 340 in the wireless charging node assembly 300, firstly, for the embedded board-level subsystem, the multi-layer PCB (printed circuit board) technology can be used in the design to integrate the photovoltaic cell 310, the energy storage management unit 320 and the wireless charging transmission transmitting end circuit on the same PCB. Through reasonable layout and selection of miniaturized components, the space occupation can be effectively reduced. In addition, the surface mount technology (SMT) is used to directly mount various electronic components on the PCB surface, which can further reduce the volume.

[0077] Secondly, in the selection of photovoltaic cells 310, thin-film photovoltaic cells 310 or miniaturized photoelectric conversion modules can be given priority. These photovoltaic cells 310 not only have high efficiency, but can also be closely combined with PCB through integrated design to form a highly integrated module. For the energy storage management unit 320, a small lithium-ion battery or supercapacitor can be selected, and combined with an efficient power management chip, the number of external components can be reduced, thereby further reducing the overall size of the system.

[0078] In the wireless power transmission receiving end 340, the use of miniaturized receiving coils 341 and resonant capacitors is key. By optimizing the geometry and materials of the coils, using highly conductive materials and nanotechnology, smaller coils can be manufactured to ensure that the volume is reduced while maintaining good coupling efficiency. In addition, the rectifier circuit 343 at the receiving end can be in the form of an integrated circuit (IC) to integrate multiple functions, reduce the number of components, and further improve the integration of the system.

[0079] For the regulation circuit 344, a high-frequency noise filter and an integrated regulator can be used, and it can be designed as a pluggable module, which is convenient for replacement and upgrading in different application scenarios. This modular design is not only convenient for production, but also simplifies the process of disassembly and replacement during later maintenance.

[0080] Combining 3D printing technology with advanced packaging technology can achieve more flexible design solutions in the production process. 3D printing can be used to make housings, providing better mechanical protection, while allowing for personalized customization in shape and function, thereby achieving more efficient space utilization. In terms of packaging technology, the use of thin film packaging or ceramic packaging can significantly reduce the product volume while maintaining performance.

[0081] Finally, in order to ensure the stability and reliability of the system under different working conditions, thermal management and electromagnetic compatibility (EMC) optimization should be carried out for the integrated design. The reasonable layout of the heat sink should be considered during the design to ensure that the key components can effectively dissipate heat, and necessary shielding measures should be added to the circuit design to reduce the impact of electromagnetic interference.

[0082] On the other hand, the present invention further provides an application method applicable to the above-mentioned wireless charging system based on optical fiber energy transmission, the method comprising steps S101 to S103:

[0083] Step S101: deploying light source devices in the system according to preset locations.

[0084] Step S102: deploying an integrated optical cable in the system according to a preset line, and deploying a plurality of wireless charging node components on the integrated optical cable at positions based on power supply requirements.

[0085] Step S103: Connect the load to the wireless power transmission receiving end in the adjacent wireless charging node assembly, control the light source device to generate an energy beam and guide it into the corresponding optical fiber to power the load.

[0086] When applying the wireless charging system based on optical fiber energy transmission, the main concerns are the front-end light source layout, intermediate line deployment, and terminal load access. According to the specific circumstances of the application scenario, the light source equipment is deployed in a location with a stable energy supply and a stable operating environment. The deployment of the integrated optical cable should be carried out according to the location of the load, and the wireless charging node components should be set accordingly. The integrated form of this application can achieve global energy supply in one deployment. After completing the deployment of the integrated optical cable, connect the load to the wireless power transmission receiving end to complete the power extraction.

[0087] The present invention proposes a combination of optical fiber energy transmission and wireless charging technology. A wireless power transmission transmitter is added after the optical fiber energy transmission to transmit energy to the receiving end wirelessly. The receiving end can replace different loads according to specific usage conditions, thereby improving the flexibility of load use and getting rid of the limitations of electrical connections. It has a broad application space in remote and complex environments.

[0088] In summary, the wireless charging system based on optical fiber energy transmission and its application method described in the present invention use a light source device to provide an energy beam of a preset wavelength, conduct the energy beam through an integrated optical cable integrated optical fiber, set a wireless charging node component on the integrated optical cable, convert the energy beam into electrical energy in the embedded board-level subsystem, and use wireless power supply to transmit power to the wireless power transmission receiving end outside the integrated optical cable to power the load. In the process of supplying energy to the load, the present invention transmits in the form of light energy on the transmission line, which will not be affected by factors such as external environmental temperature, magnetic field, humidity, etc., ensuring the stability and safety of energy supply and achieving an energy transmission efficiency of 80%.

[0089] Furthermore, laser diodes, quantum cascade lasers and / or distributed feedback laser diodes are set as light source devices, which can provide energy beams with wavelengths of 808nm, 1150nm and / or 1310nm to meet the energy supply needs in various scenarios.

[0090] Furthermore, a wavelength division multiplexer and a fiber collimator are used to introduce energy beams to improve the flexibility and accuracy of front-end energy supply.

[0091] Furthermore, a graphene heat sink is provided to ensure the temperature stability of the wireless power supply and maintain the power supply efficiency.

[0092] Furthermore, by providing a detachable first shell and a second shell, the load can be loaded flexibly. By providing a magnetic lock buckle, the transmitting coil and the receiving coil can be aligned under the premise of being detachable, thereby ensuring energy supply efficiency.

[0093] It should be understood by those skilled in the art that the exemplary components, systems and methods described in conjunction with the embodiments disclosed herein can be implemented in hardware, software or a combination of the two. Whether it is performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier.

[0094] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0095] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wireless charging system based on optical fiber energy transmission, characterized in that: The wireless charging system based on optical fiber energy transmission includes: A light source device for generating an energy beam of one or more preset wavelengths; An integrated optical cable, with a plurality of optical fibers inside, for transmitting the energy beam generated by the light source device; A plurality of wireless charging node components, each of which is deployed on the integrated optical cable according to a preset position, and the wireless charging node components include an embedded board-level subsystem and a wireless power transmission receiving end, each of which is arranged inside the integrated optical cable and connected to an optical fiber; each of which is arranged outside the integrated optical cable and corresponds to the embedded board-level subsystem one by one; The embedded board-level subsystem includes: a photoelectric cell connected to the optical fiber to convert the energy beam of a preset wavelength into electrical energy; An energy storage management unit connected to the photovoltaic cell for storing electrical energy; A wireless charging transmission transmitting end, connected to the energy storage management unit, converting the first direct current of the energy storage management unit into a first high-frequency alternating current through an internal inverter circuit, and converting the first high-frequency alternating current into an alternating magnetic field of a preset resonant frequency through a transmitting coil and a first resonant capacitor connected in parallel with each other; The wireless power transmission receiving end comprises: A receiving coil and a second resonant capacitor connected in parallel with each other, used to induce the alternating magnetic field and convert it into a second high-frequency alternating current; A rectifier circuit, converting the second high-frequency alternating current into a second direct current; The regulating circuit is used for removing high frequency noise in the second direct current and supplying the second direct current to a load.

2. The wireless charging system based on optical fiber energy transmission according to claim 1, characterized in that: The preset wavelength of the energy light beam generated by the light source device is 808nm, 1150nm and / or 1310nm.

3. The wireless charging system based on optical fiber energy transmission according to claim 2, characterized in that: The light source device comprises: A laser diode, the output end of which is connected to the integrated optical cable and is used to generate an energy beam with a wavelength of 808nm; and / or, a quantum cascade laser, the output end of which is connected to the integrated optical cable to generate an energy beam with a wavelength of 1150 nm; and / or, a distributed feedback laser diode, the output end of which is connected to the integrated optical cable to generate an energy beam with a wavelength of 1310 nm; and / or, an ytterbium-doped fiber amplifier, connected to the laser diode and the output end of the quantum cascade laser, for amplifying the energy beam with a wavelength of 808nm or 1150nm and introducing it into the integrated optical cable; And / or, an erbium-doped fiber amplifier, connected to the output end of the distributed feedback laser diode, is used to amplify the energy light beam with a wavelength of 1310nm and introduce it into the integrated optical cable.

4. The wireless charging system based on optical fiber energy transmission according to claim 1, characterized in that: The wireless charging system based on optical fiber energy transmission also includes: A wavelength division multiplexer, used for combining or separating the energy beams of each preset wavelength; The optical fiber collimator is used to guide the energy beam into the optical fiber.

5. The wireless charging system based on optical fiber energy transmission according to claim 1, characterized in that: The wireless charging system based on optical fiber energy transmission also includes a graphene heat sink, which is arranged at the wireless charging transmission transmitting end and the wireless power transmission receiving end.

6. The wireless charging system based on optical fiber energy transmission according to claim 1, characterized in that: The wireless charging node assembly is fixed to the integrated optical cable through a first shell, and the embedded board-level subsystem is arranged in the first shell; the first shell and the second shell are detachably connected, and the wireless power transmission receiving end is arranged in the second shell; the first shell and the second shell are both provided with metal grids to shield external electromagnetic interference.

7. The wireless charging system based on optical fiber energy transmission according to claim 6, characterized in that: A magnet is arranged on the first shell at a first set position, and a magnet is arranged on the second shell at a second set position. The first set position corresponds to the second set position, and the relative position of the first shell and the second shell is maintained by magnetic attraction to ensure that the transmitting coil is aligned with the receiving coil.

8. The wireless charging system based on optical fiber energy transmission according to claim 7, characterized in that: The second shell is provided with a power supply interface of a preset model, the power supply interface is connected to the regulating circuit, and the power supply interface is used to connect an external load.

9. The wireless charging system based on optical fiber energy transmission according to claim 1, characterized in that: The regulating circuit adopts a low-pass filter.

10. An application method for the wireless charging system based on optical fiber energy transmission according to any one of claims 1 to 9, characterized in that: The method comprises: Deploy the light source equipment in the wireless charging system based on optical fiber energy transmission according to the preset points; Deploy the integrated optical cable in the wireless charging system based on optical fiber energy transmission according to a preset route, and deploy multiple wireless charging node components on the integrated optical cable at positions based on power supply requirements; The load is connected to the wireless power transmission receiving end in the adjacent wireless charging node component, and the light source device is controlled to generate an energy beam and direct it into the corresponding optical fiber to power the load.

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