Long-acting power supply device with power generation function

Abstract

The invention relates to the technical field of new energy power supply and energy storage, in particular to a long-acting power supply device with a power generation function, which solves the problems proposed in the background technology, and comprises a composite energy acquisition module used for simultaneously acquiring mechanical energy generated by human motion and optical energy in the environment and converting the mechanical energy and the optical energy into electric energy; the energy management and conversion module is electrically connected with the composite energy acquisition module; the energy storage module is electrically connected with the energy management and conversion module; the output module is electrically connected with the energy storage module; the energy management and conversion module comprises a microcontroller MCU, and is used for monitoring the input state of each energy collection unit, the electric quantity state of the energy storage module and the load demand in real time, and intelligently distributing electric energy. According to the invention, diversification and self-adaption of energy sources are realized, human body kinetic energy and ambient light energy are organically combined, 24-hour uninterrupted energy collection of'human-driven charging and light-driven charging 'is realized, and applicability and reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy power supply and energy storage technology, in particular to a long-acting power supply device with power generation function. BACKGROUND

[0002] With the rapid development of mobile Internet and Internet of Things, portable electronic devices such as smart phones, wearable devices, GPS trackers are ubiquitous. However, the lack of battery endurance is always the key bottleneck restricting its development. The traditional mobile power supply (power bank) needs to be charged from the power grid in advance, and its use is greatly limited in outdoor travel, emergency disaster relief or areas with insufficient power infrastructure.

[0003] The existing solutions have obvious defects: solar power banks completely rely on light conditions, and their efficiency drops sharply in indoor, night or cloudy conditions; hand-cranked power banks require continuous manual operation by the user, which is inefficient and has a poor experience; fixed power generation devices based on piezoelectric effect cannot meet the demand of mobile power supply. Therefore, there is an urgent need in the art for a portable power supply device that can adapt to multiple environments, utilize multiple idle energy sources, and achieve efficient self-power generation without user intervention. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a self-powered power supply device based on the composite collection of human kinetic energy and environmental light energy, which can realize all-weather, self-adaptive and high-efficiency energy collection and power supply.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] A self-powered power supply device based on the composite collection of human kinetic energy and environmental light energy, comprising:

[0007] A composite energy collection module for simultaneously collecting mechanical energy generated by human motion and light energy in the environment and converting them into electrical energy;

[0008] An energy management and conversion module electrically connected to the composite energy collection module for rectifying, stabilizing and maximum power point tracking processing of the collected electrical energy;

[0009] An energy storage module electrically connected to the energy management and conversion module for storing the processed electrical energy;

[0010] An output module electrically connected to the energy storage module for providing power output to external power-consuming devices;

[0011] The energy management and conversion module includes a microcontroller MCU for real-time monitoring of the input state of each energy collection unit, the state of charge of the energy storage module and the load demand, and intelligently distributing electrical energy.

[0012] Preferably, the composite energy collection module comprises:

[0013] The kinetic energy collection sub-module is a piezoelectric power generation unit, an electromagnetic induction power generation unit or a combination of both, which is used to convert mechanical energy generated by human motion or environmental vibration into alternating current electric energy.

[0014] The light energy collection sub-module is a flexible solar thin film panel covering the surface of the device shell, which is used to convert environmental light energy into direct current electric energy.

[0015] Preferably, the energy management and conversion module further comprises:

[0016] The maximum power point tracking (MPPT) circuit is connected to the light energy collection sub-module to optimize its electric energy output efficiency.

[0017] The rectifier and voltage stabilizing circuit is connected to the kinetic energy collection sub-module to convert the alternating current generated by it into stable direct current.

[0018] Preferably, the microcontroller (MCU) of the energy management and conversion module is configured to perform adaptive power path management, the strategy of which is to preferentially use real-time collected electric energy to power the load and store excess electric energy in the energy storage module; when the real-time collected electric energy is insufficient, automatically switch to power the load by the energy storage module.

[0019] Preferably, the output module comprises at least one USB-A interface and one USB-C interface.

[0020] Preferably, it further comprises a backup charging input interface for charging the energy storage module by mains power in emergency situations.

[0021] Preferably, it further comprises a human-computer interaction module, which comprises an LED indicator for displaying the electric quantity and a physical switch for controlling the on-off.

[0022] Preferably, the device shell is made of high-strength, lightweight ABS+PC composite material, and the size is suitable for portable use.

[0023] The application also discloses a working method of the self-powered power supply device, comprising the following steps:

[0024] S1: The composite energy collection module continuously collects mechanical energy and light energy and converts them into electric energy.

[0025] S2: The energy management and conversion module processes the input electric energy and intelligently judges the electric energy distribution path through the MCU.

[0026] S3: Prioritize the real-time generated electricity supply output module for external device power supply, and store the excess electricity to the energy storage module;

[0027] S4: When the real-time collected electricity is insufficient to meet the load demand, automatically switch to be supplemented or bear all power supply by the energy storage module;

[0028] S5: Real-time display device status through the man-machine interaction module, and perform emergency charging through the standby interface when necessary.

[0029] Compared with the prior art, the beneficial effects of the present application are:

[0030] The diversification and self-adaptation of energy sources are realized, the human kinetic energy and environmental light energy are organically combined, the single energy dependence is broken, the 24-hour uninterrupted energy collection of "human motion charging and light motion charging" is realized, and the applicability and reliability are improved.

[0031] The intelligent self-adaptive power path management algorithm is adopted, the energy utilization efficiency is maximized, and the battery service life can be intelligently extended.

[0032] The portability and operation-free are truly realized, the user does not need to change the use habit, can be automatically charged by carrying, and the user experience is excellent. DETAILED DESCRIPTION

[0033] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0034] Figure 1 It is the internal module connection diagram of the device of the present application.

[0035] Figure 2 It is the external structure schematic diagram of the device of the present application.

[0036] In the figure: 1, shell; 2, flexible solar panel; 3, USB output interface; 4, power indicator light; 5, switch button. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0038] The composite energy collection module comprises a kinetic energy collection sub-module (such as a piezoelectric ceramic sheet and a micro electromagnetic coil group) and a light energy collection sub-module (a flexible solar panel). The energy management and conversion module is a core PCB board, which is integrated with an MCU, an MPPT circuit, a rectification and voltage stabilization circuit and a power management chip. The energy storage module is a lithium polymer battery. The output module is a USB interface group.

[0039] The MCU is programmed to continuously monitor the voltage and current of the solar panel and the kinetic energy collection unit, monitor the battery power and load demand. The real-time electric energy generated by the solar energy and the kinetic energy is used by default in priority. When the collected energy is greater than the load demand, the MCU controls the charging management chip to store the excess energy into the battery; when the collected energy is insufficient, the MCU automatically switches to take power from the battery to make up the difference, ensuring the continuity of power supply to the load.

[0040] As shown in Figure 2 The device shell 1 is covered with a flexible solar panel 2 on the front, and is provided with a USB output interface 3, an electric quantity indicating lamp 4 and a switch button 5 on the side.

[0041] In operation, the user can connect a mobile phone or other equipment to the USB interface. The device can be placed in a pocket or backpack, and the kinetic energy can be generated by the shaking during walking; the light energy can be generated by placing it in a light environment. The whole process is automatically completed without user intervention.

[0042] It should be noted that, in the present text, relational terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device.

[0043] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-term power supply device with power generation function, characterized in that, The application relates to a multifunctional energy harvesting device. The multifunctional energy harvesting device comprises a composite energy harvesting module for simultaneously harvesting mechanical energy and light energy and converting the mechanical energy and the light energy into electric energy; an energy management and conversion module electrically connected with the composite energy harvesting module for rectifying, stabilizing and maximum power tracking processing the harvested electric energy; an energy storage module electrically connected with the energy management and conversion module for storing the processed electric energy; and an output module electrically connected with the energy storage module for providing electric power output to external power consuming equipment. The energy management and conversion module comprises a microcontroller (MCU) for real-time monitoring of input states of each energy harvesting unit, an electric quantity state of the energy storage module and load demand and intelligently distributing electric energy. The composite energy harvesting module comprises a kinetic energy harvesting submodule for converting mechanical energy generated by human body movement or environmental vibration into alternating current electric energy and a light energy harvesting submodule for converting environmental light energy into direct current electric energy. The kinetic energy harvesting submodule is a composite structure of a piezoelectric power generation unit and an electromagnetic induction power generation unit. The light energy harvesting submodule is a flexible solar thin film cell panel covering a surface of a device shell.

2. The long-acting power supply device with power generation function according to claim 1, characterized in that, The energy management and conversion module further comprises a maximum power point tracking (MPPT) circuit connected with the light energy harvesting submodule for optimizing electric energy output efficiency of the light energy harvesting submodule and a rectification and stabilization circuit connected with the kinetic energy harvesting submodule for converting alternating current electric energy generated by the kinetic energy harvesting submodule into stable direct current electric energy. The microcontroller (MCU) of the energy management and conversion module is configured to perform adaptive power path management, and the strategy is to preferentially use real-time harvested electric energy to supply power to a load and store excess electric energy into the energy storage module; when the real-time harvested electric energy is insufficient, the energy management and conversion module is automatically switched to supply power to the load by the energy storage module. The output module comprises at least one USB interface.

3. The long-acting power supply device with power generation function according to claim 2, characterized in that, The multifunctional energy harvesting device further comprises a backup charging input interface and a man-machine interaction module, and the man-machine interaction module comprises LED indicator lamps for displaying electric quantity and physical switches for controlling on-off.

4. The long-acting power supply device with power generation function according to claim 2, characterized in that, ​ 5. The long-acting power supply device with power generation function according to claim 1, characterized in that, ​ ​ ​ 6. The long-acting power supply device with power generation function according to claim 1, characterized in that, ​ 7. The long-acting power supply device with power generation function according to claim 1, characterized in that, ​ 8. The long-acting power supply device with power generation function according to claim 1, characterized in that, ​

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