Engine telemetering system power supply device with nanometer friction power generation function

Abstract

The invention discloses an engine telemetering system power supply device for nanometer friction power generation. The power supply device comprises an engine, a nanometer friction generator and a power supply management device, the nanometer friction generator and the power management device are both installed in the engine, the engine can drive the nanometer friction generator to work when running, the nanometer friction generator converts mechanical energy into high-voltage and low-current alternating-current electric energy through the friction electrification effect, the alternating-current electric energy is then sent to the power management device, and after voltage reduction and voltage stabilization, the power management device supplies power to the power management device. And finally, stable direct current is output, and continuous power supply is provided for the engine telemetering system.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation engine telemetry power supply, and more specifically, relates to a nano-friction power generation engine telemetry system power supply device. Background Art

[0002] With the rapid advancement of technology, telemetry systems are becoming increasingly important in fields such as environmental monitoring, industrial automation, military affairs, and scientific research. Engine telemetry systems primarily measure internal engine parameters such as temperature, pressure, stress, and vibration. These parameters are crucial for engine performance evaluation, fault diagnosis, and design optimization. A stable power supply ensures the proper functioning of sensors and data transmission modules, preventing data loss or measurement errors caused by insufficient or unstable power supply.

[0003] Traditional conductive slip ring power supply methods suffer from wear, short lifespan, and susceptibility to environmental influences, which are particularly evident in high-speed rotating components. Currently, most engine telemetry systems use wireless inductive power supply, but this method has problems with limited power supply distance and complex installation structure. For some engines with large axial movement of rotating components or limited installation space, inductive power supply cannot meet the needs. Some telemetry systems are battery-powered, but battery utilization is low and uncontrollable, which cannot meet the needs of long-term continuous testing. In extreme environments, especially when the system is under harsh conditions such as high temperature, high pressure, high speed and large vibration, the endurance and reliability of current power supply methods often cannot meet the requirements. Telemetry systems often face challenges in adaptability to complex working conditions and power supply stability. Therefore, there is an urgent need to find a suitable new power supply solution. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a nano-friction power generation engine telemetry system power supply device to solve the problems of existing wireless induction power supply relying on external power supply, short axial signal transmission distance, limited embedded battery life and difficulty in replacement, so as to meet the telemetry system's demand for long-term and continuous power supply.

[0005] To achieve the above-mentioned purpose of the invention, the present invention provides a nano-friction power generation engine telemetry system power supply device, which is characterized by comprising: an engine, a nano-friction generator, and a power management device;

[0006] The engine comprises: an engine rotor and an engine stator; the engine rotor is built into the engine stator and can rotate within the engine stator, serving as the power source of the entire engine;

[0007] The nano-friction generator is built into the engine rotor, and the engine rotor drives the rotor of the nano-friction generator to rotate, thereby converting the mechanical energy during the rotation into electrical energy, providing AC input for the power management device;

[0008] The power management device is attached to the inner wall of the engine rotor and forms an engine telemetry system power supply system based on nano-friction power generation with the built-in nano-friction generator.

[0009] The object of the invention of the present invention is achieved like this:

[0010] The present invention provides a power supply device for an engine telemetry system using nano-friction power generation, comprising an engine, a nano-friction generator, and a power management device. The nano-friction generator and the power management device are both installed inside the engine. When the engine is running, the nano-friction generator is driven to work. The nano-friction generator converts mechanical energy into high-voltage, low-current AC power through the frictional electrification effect. The AC power is then fed into the power management device, and after voltage reduction and stabilization, it is stored in a rechargeable battery, and finally outputs stable DC power to provide continuous power supply for the engine telemetry system.

[0011] At the same time, the nano-friction power generation engine telemetry system power supply device of the present invention also has the following beneficial effects:

[0012] (1) The power supply device for the engine telemetry system based on nano-friction power generation proposed in the present invention is a power supply method based on the combination of nano-friction power generation and rechargeable batteries. Compared with traditional power supply methods, its power supply stability and reliability are higher, and it can meet the needs of long-term continuous testing, which is conducive to ensuring the normal operation of the sensors and data transmission modules of the telemetry system;

[0013] (2) The present invention solves the problems of existing wireless induction power supply, such as reliance on external power supply, short axial signal transmission distance, limited battery life of embedded batteries and difficulty in replacement, and meets the telemetry system's demand for long-term and continuous power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a power supply device for a nano-friction power generation engine telemetry system of the present invention;

[0015] Figure 2 This is a schematic diagram of the assembly of the nano-friction generator;

[0016] Figure 3 It is the power management circuit diagram;

[0017] Figure 4 This is the simulated output waveform of the power supply device of the engine telemetry system based on nano-friction power generation;

[0018] Reference numerals:

[0019] Telemetry system 11, power management device 12, engine rotor 13, nano-friction generator 14, engine stator permanent magnet 15, engine stator conformal housing 16, engine stator base 17, engine stator 18, coupling 21, polyamide (PA) polymer film material 22, nano-friction generator rotor 23, polytetrafluoroethylene (PTFE) polymer film material 24, nano-friction generator stator 25, lead-containing tin-sprayed electrode layer 26. DETAILED DESCRIPTION

[0020] The following describes the specific embodiments of the present invention in conjunction with the accompanying drawings so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, such descriptions will be omitted here.

[0021] Example

[0022] In this embodiment, if Figure 1 As shown, the present invention provides a nano-friction power generation engine telemetry system power supply device, comprising: an engine, a nano-friction generator, and a power management device;

[0023] The engine includes an engine rotor 13 and an engine stator 18. The engine rotor 13 is built into the engine stator 18 and can rotate within the engine stator 18, serving as the power source of the entire engine.

[0024] In this embodiment, if Figure 1 As shown, the engine stator 18 includes an engine stator permanent magnet 15 , an engine stator conformal housing 16 and an engine stator base 17 ;

[0025] The outermost portion of the engine stator 18 is the engine stator conformal housing 16. The upper portion of the engine stator conformal housing 16 is a hollow cylindrical structure, while the lower portion is a disc-shaped structure with four groups of 12 circular bolt holes for securing the engine stator conformal housing 16 to the engine stator base 17. The engine stator permanent magnets 15 are flat, elongated structures, with six evenly distributed and embedded within the engine stator conformal housing 16, forming the stator permanent magnet magnetic field. The engine stator base 17 is a solid disc with a circle of circular grooves that create an air gap between the engine rotor 13 and the engine stator 18. Four groups of 12 circular bolt holes, corresponding to the engine stator conformal housing 16, are used to connect the stator conformal housing 16, securing the entire engine stator 18 and providing support. The engine rotor 13 shares the same structure with the engine stator 18 and can rotate within the stator 18, serving as the power source for the entire engine. Based on the original telemetry system 11, the engine rotor 13 is embedded with a nano-friction generator 14 and a power management device 12 to form an engine telemetry system power supply system based on nano-friction power generation.

[0026] The nano-friction generator is built into the engine rotor, which drives the rotor of the nano-friction generator to rotate, thereby converting the mechanical energy during the rotation into electrical energy, providing AC input for the power management device;

[0027] In this embodiment, if Figure 2 As shown, the nano-friction generator includes a coupling 21, a nano-friction generator rotor 23, a nano-friction generator stator 25 and a lead-containing tin-sprayed electrode layer 26; the coupling 21 is used to connect the engine rotor 23 and the nano-friction generator rotor 25, and drives the nano-friction generator rotor 23 to rotate through the engine rotor 13, converting the mechanical energy in the rotation process into electrical energy to provide AC input for the power management device.

[0028] The nano-friction generator rotor 23 is made by cutting an acrylic disc with a diameter of 10 cm and a thickness of 5 mm using a laser cutting machine as the rotor substrate. Six radially arranged fan-shaped grooves are then cut into the acrylic disc. A layer of polyamide polymer film material 22 with a thickness of 0.1 mm is then covered under the fan-shaped grooves. In this way, the polyamide (PA) polymer film material 22 is formed into six fan-shaped shapes and attached to the corresponding fan-shaped grooves cut into the nano-friction generator rotor 23.

[0029] The nano-friction generator stator 25 is made by printing circuit board technology on a square PCB board with a length of 10 cm and a thickness of 1.5 mm. Six pairs of fan-shaped grooves with a diameter of 10 cm are evenly distributed. The positions of the fan-shaped grooves are symmetrical with the fan-shaped grooves in the nano-friction generator rotor 23. Then, a layer of lead-containing tin-sprayed electrode layer 26 is first covered under the fan-shaped grooves, and then a layer of polyamide polymer film material with a thickness of 0.05 mm is covered.

[0030] A lead-containing tin-sprayed electrode layer 26 is placed between the nano-friction generator stator 25 and the polytetrafluoroethylene (PTFE) polymer film material 24 to facilitate the transmission of charge and current; the polytetrafluoroethylene (PTFE) polymer film material 24 is also made into 6 sectors and attached to the corresponding sectors of the nano-friction generator stator 25.

[0031] In addition, the polyamide (PA) polymer film material 22 and the polytetrafluoroethylene (PTFE) polymer film material 24 are two friction materials with different properties, which facilitate friction power generation.

[0032] The power management device is attached to the inner wall of the engine rotor and forms an engine telemetry system power supply system based on nano-friction power generation with the built-in nano-friction generator;

[0033] In this embodiment, if Figure 3 As shown, the power management device consists of a rectifier module, a buck regulator module, and a rechargeable battery. The rectifier module, consisting of four diodes forming a rectifier bridge, converts the AC signal generated by the nano-triboelectric generator into a DC signal, filters it, and stores energy. The buck regulator module uses the LTC3588-1 chip for efficient step-down conversion, converting the rectified high-voltage output into a stable low voltage. Furthermore, to ensure power for the telemetry system even when the engine is not operating, a rechargeable battery is used for energy storage and regulation. The rechargeable battery used is the TLI-1550HT, which is resistant to high temperatures. In short, the power management circuit converts the AC signal into a DC signal through the rectifier circuit. This signal is then subjected to step-down, stabilization, and energy storage in the back-end, ultimately outputting DC power to drive the telemetry system.

[0034] In this embodiment, if Figure 3As shown, the input portion of the present invention replaces the AC input of the TENG with a voltage source V1. Based on the high voltage, low current output characteristics of the TENG, V1 is set to a sinusoidal voltage of 620V peak-to-peak and a frequency of 50Hz. The rectifier and filter portion comprises a bridge rectifier and capacitor filter circuit consisting of four diodes D1, D2, D3, and D4 and a filter capacitor C5. Considering the high input voltage, a 1200μF capacitor C5 with high voltage resistance and large capacitance is selected. The step-down and voltage regulation portion is primarily implemented by the LTC3588-1 chip and peripheral circuitry. The PZ1 and PZ2 pins of the LTC3588-1 chip serve as inputs. A 1μF capacitor C3 is connected between CAP and VIN to act as the gate driver for the chip's internal switch. VIN2 is connected to a 4.7μF capacitor C4 and then to GND. The SW pin is connected to a 10μH inductor L1 and then to VOUT. The chip's D0 and D1 pins select the output voltage; if both are high, VOUT outputs 3.6V. VOUT is the output pin, connected to a 47μF voltage-stabilizing capacitor C2 for final output. The output section is replaced by a 180-ohm load resistor, replacing the rechargeable battery TLI-1550HT. The rechargeable battery has a maximum charging voltage of 4.1V and a maximum charging current of 20mA under extreme conditions. In summary, the power management circuit of the present invention first receives the high-voltage, low-current AC signal generated by the nano-triboelectric generator. After rectification, filtering, and voltage regulation, the energy is stored in the rechargeable battery. The rechargeable battery then outputs stable DC power to provide continuous power to the engine telemetry system.

[0035] Figure 4 This is a simulated output waveform of the power supply device of the engine telemetry system based on nano-friction power generation; Figure 4 (a) is the simulated output current waveform, Figure 4 (b) shows the simulated output voltage waveform, with a simulation duration of 20 ms, an output current of 20 mA, and an output voltage of 3.6 V. This shows that the nano-triboelectric power generation-based engine telemetry system power supply device simulation can output stable voltage and current with minimal voltage and current ripple, providing a feasible solution for powering the engine telemetry system.

[0036] Although the above describes the illustrative specific embodiments of the present invention to facilitate understanding of the present invention by those skilled in the art, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concepts of the present invention are protected.

Claims

1. A nano-friction power generation engine telemetry system power supply device, characterized in that: include: Engines, nano-friction generators, and power management devices; The engine comprises: an engine rotor and an engine stator; the engine rotor is built into the engine stator and can rotate within the engine stator, serving as the power source of the entire engine; The nano-friction generator is built into the engine rotor, and the engine rotor drives the rotor of the nano-friction generator to rotate, thereby converting the mechanical energy during the rotation into electrical energy, providing AC input for the power management device; The power management device is attached to the inner wall of the engine rotor and forms an engine telemetry system power supply system based on nano-friction power generation with the built-in nano-friction generator.

2. The nano-friction power generation engine telemetry system power supply device according to claim 1, characterized in that: The engine rotor is a hollow cylindrical structure, the upper half of which is a disc structure and has 4 groups of 12 circular slot holes to facilitate the winding of the rotor winding coil. The engine rotor is coaxial with the nano-friction generator rotor. The upper end of the rotating shaft is connected to the square slot of the engine rotor, and the lower end of the rotating shaft is connected to the rotor of the nano-friction generator through a coupling. A power management device and a telemetry system are attached to the inner wall of the engine rotor.

3. The nano-friction power generation engine telemetry system power supply device according to claim 1, characterized in that: The engine stator includes an engine stator permanent magnet, an engine stator conformal housing and an engine stator base; Among them, the outermost side of the engine stator is the engine stator conformal shell. The upper part of the engine stator conformal shell is a hollow cylindrical structure, and the lower part is a disc structure with 4 groups of 12 circular bolt holes for connecting and fixing the engine stator conformal shell to the engine stator base; the engine stator permanent magnets are evenly distributed on the surface of the engine stator conformal shell to form a stator permanent magnet magnetic field; the engine stator base is a solid disc structure with a circle of circular grooves on it to form an air gap between the engine rotor and the engine stator, and there are 4 groups of 12 circular bolt holes corresponding to the engine stator conformal shell for connecting the engine stator conformal shell, fixing the entire engine stator and playing a supporting role.

4. The nano-friction power generation engine telemetry system power supply device according to claim 3, characterized in that: The engine stator permanent magnets are flat long strip structures, with a total of 6 pieces.

5. The nano-friction power generation engine telemetry system power supply device according to claim 1, characterized in that: The nano friction generator comprises: a coupling, a nano friction generator rotor and a nano friction generator stator; The coupling is used to connect the engine rotor and the nano-friction generator rotor. The engine rotor drives the nano-friction generator rotor to rotate, converting the mechanical energy during the rotation process into electrical energy to provide AC input for the power management device.

6. The nano-friction power generation engine telemetry system power supply device according to claim 5, characterized in that: The nano-friction generator rotor is made by cutting an acrylic disc with a diameter of 10 cm and a thickness of 5 mm using a laser cutting machine as a rotor substrate. Six radially arranged fan-shaped grooves are cut on the acrylic disc, and then a layer of polyamide polymer film material with a thickness of 0.1 mm is covered under the fan-shaped grooves.

7. The nano-friction power generation engine telemetry system power supply device according to claim 5, characterized in that: The nano-friction generator stator is made by using circuit board printing technology on a square PCB board with a length of 10 cm and a thickness of 1.5 mm. Six pairs of fan-shaped grooves with a diameter of 10 cm are evenly distributed. The positions of the fan-shaped grooves are symmetrical with the fan-shaped grooves in the nano-friction generator rotor. Then, a layer of lead-containing tin-sprayed electrode layer is first covered under the fan-shaped grooves, and then a layer of polyamide polymer film material with a thickness of 0.05 mm is covered.

8. The nano-friction power generation engine telemetry system power supply device according to claim 5, characterized in that: The polyamide polymer film material and the polytetrafluoroethylene polymer film material are two friction materials with different properties.

9. The nano-friction power generation engine telemetry system power supply device according to claim 1, characterized in that: The power management device includes a rectifier module, a voltage step-down and voltage stabilization module and a rechargeable battery; The rectifier module consists of four diodes forming a rectifier bridge, which is used to convert the AC signal generated by the nano-friction generator into a DC signal, which is then filtered and stored. The step-down voltage regulator module uses the LTC3588-1 chip to convert the rectified high voltage output into a stable low voltage; The rechargeable battery is TLI-1550HT model battery, which is used to power the telemetry system when the engine is not working.

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