Portable multi-source power supply device

Abstract

The application discloses a portable multi-source power supply device, and relates to the technical field of mobile power supply, which comprises a mechanical power generation device, a photovoltaic power generation device, an energy management module and a charging module; the mechanical power generation device and the photovoltaic power generation device are connected with the energy management module; and the energy management module is connected with the charging module. The mechanical power generation device comprises a disc generator, a rectification filtering module, a super capacitor group and a USB module which are connected in sequence; the photovoltaic power generation device comprises a photovoltaic cell panel, an MPPT controller and a USB module which are connected in sequence; the energy management module comprises a DC / DC charging panel, a BMS control module, a lithium battery group and a USB fast charging module; and the charging module comprises a control panel, a charging panel, a charging switch panel, a polarity conversion panel and a movable charging contact which are connected in sequence. The application has the advantages of simple structure, convenient use, application to charging of various batteries, multiple energy supply ways and expansion of the use range of the portable multi-source power supply device.

Description

Technical Field

[0001] This invention relates to the field of mobile power supply technology, and more specifically to a portable multi-source power supply device. Background Technology

[0002] As people's living standards improve, they have gained a deeper understanding of emergency energy equipment. Traditional fuel generators, with their exhaust pollution, loud noise, and hazardous storage, are no longer suitable for today's clean energy trend. Furthermore, the widespread use of portable electronic devices has made charging increasingly important for solo users: in the field, smartphones, satellite phones, walkie-talkies, and other electronic devices all require a stable power supply; in emergencies, lighting equipment such as lamps and flashlights also need power. Under these demands, portable outdoor power supplies using lithium-ion battery storage have become the new generation of emergency power equipment due to their ease of use, lack of pollution, noiselessness, and multiple resupply options.

[0003] Currently, portable outdoor power banks have a relatively limited function of charging batteries and few ways to replenish energy. Therefore, how to overcome this technical problem is an urgent issue that needs to be addressed by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a portable multi-source power supply device, the purpose of which is to improve the battery charging function of portable outdoor mobile power supplies, increase the energy replenishment methods, and improve the adaptability of portable outdoor mobile power supplies.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A portable multi-source power supply device includes a mechanical power generation device, a photovoltaic power generation device, an energy management module, and a charging module. The mechanical power generation device and the photovoltaic power generation device are respectively connected to the energy management module, and the energy management module is connected to the charging module.

[0007] Optionally, the mechanical power generation device is a hand-cranked / foot-operated integrated power generation device, specifically including a disc generator, a rectifier and filter module, a supercapacitor bank, and a USB module connected in sequence.

[0008] Optionally, the disc generator uses a coreless external rotor structure.

[0009] Optionally, the rectifier and filter module adopts a three-phase rectifier bridge circuit composed of diodes with low on-state voltage drop.

[0010] Optionally, the supercapacitor bank is composed of four high-rate, high-capacity supercapacitors connected in series.

[0011] Optionally, the photovoltaic power generation device is a photovoltaic panel, specifically including a photovoltaic cell panel, an MPPT controller, and a USB module connected in sequence.

[0012] Optionally, the photovoltaic panel uses monocrystalline silicon as the solar cell and FTFE thin film integrated into a laminated package, and the MPPT controller and the USB module are integrated on the photovoltaic panel.

[0013] Optionally, the energy management module includes a DC / DC charging board, a BMS control module, a lithium battery pack, and a USB fast charging module, wherein the BMS control module is connected to the DC / DC charging board, the lithium battery pack, and the USB fast charging module, respectively.

[0014] Optionally, two DC / DC charging boards are provided, and each DC / DC charging board is connected to the BMS control module.

[0015] Optionally, the charging module includes a control board, a charging board, a charging switching board, a polarity conversion board, and active charging contacts connected in sequence.

[0016] As can be seen from the above technical solution, the present invention provides a portable multi-source power supply device, which has the following advantages compared with the prior art:

[0017] This invention improves the basic power supply and charging functions of a portable outdoor power bank, making it compatible with charging batteries for various mobile phones, satellite radios, and walkie-talkies. It also expands the energy replenishment methods, allowing for manual replenishment even on cloudy or rainy days. This invention features a simple structure, ease of use, applicability to various battery charging methods, and multiple energy replenishment pathways, thus broadening the application range of portable multi-source power supply devices. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the portable multi-source power supply device of the present invention;

[0020] Figure 2 This is an electrical principle block diagram of the mechanical power generation device of the present invention;

[0021] Figure 3 This is an electrical principle block diagram of the photovoltaic power generation device of the present invention;

[0022] Figure 4 This is an electrical principle block diagram of the energy management module of the present invention;

[0023] Figure 5 This is an electrical principle block diagram of the charging module of the present invention;

[0024] Figure 6 This is a logic flowchart of the battery interface control function of the present invention;

[0025] Figure 7 This is a logic flowchart of the power output control function of the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] This invention discloses a portable multi-source power supply device, see [link to relevant documentation]. Figure 1 It includes a mechanical power generation device, a photovoltaic power generation device, an energy management module, and a charging module. The mechanical power generation device and the photovoltaic power generation device are respectively connected to the energy management module, and the energy management module is connected to the charging module.

[0028] The energy management module, as a core component of the portable multi-source power supply device, has the functions of energy conversion, energy storage, and energy supply. The mechanical power generation device, as one of the energy replenishment methods for the energy management module, can convert human work into electrical energy to replenish the module. The photovoltaic power generation device, another energy replenishment method, can convert solar energy into electrical energy to replenish the module. The charging module, as an interface expansion for the energy management module, has multiple universal battery interfaces and a set of movable battery contacts, enabling the charging of different types of batteries.

[0029] In one embodiment, the mechanical power generation device is a hand-cranked / foot-operated integrated power generation device, see [link to relevant documentation]. Figure 2 Specifically, it includes a disc generator, a rectifier and filter module, a supercapacitor bank, and a USB module connected in sequence.

[0030] The disc generator utilizes a coreless external rotor structure, effectively improving motor efficiency and significantly reducing electromagnetic torque ripple. The rectifier and filter module employs a three-phase rectifier bridge circuit composed of low-conduction diodes to rectify, filter, and stabilize the three-phase AC power generated by the disc generator before supplying it to subsequent circuits. The supercapacitor bank consists of four high-rate, high-capacity supercapacitors connected in series and linked to the output bus via a switch, maintaining stable output even with uneven hand / foot cranking speeds. The USB module converts the DC output to a USB interface output, facilitating power supply to various USB devices.

[0031] In one embodiment, the photovoltaic power generation device is a photovoltaic panel, preferably a portable photovoltaic panel, see [link to relevant documentation]. Figure 3 Specifically, it includes a photovoltaic panel, an MPPT controller, and a USB module connected in sequence. The photovoltaic panel uses monocrystalline silicon as the solar cell and FTFE thin film integrated into a single laminate. The MPPT controller and the USB module are integrated on the photovoltaic panel. The photovoltaic panel converts solar energy into electrical energy. The MPPT controller samples and summarizes the output voltage and current of the solar panel, and outputs DC power through a maximum power point tracking (MPPT) algorithm to achieve maximum power output from the portable photovoltaic panel.

[0032] In one embodiment, the energy management module includes a DC / DC charging board, a BMS control module, a lithium battery pack, and a USB fast charging module. (See also...) Figure 4The BMS control module is connected to the DC / DC charging board, the lithium battery pack, and the USB fast charging module. Two DC / DC charging boards are provided: one converts external energy supply (hand-cranked / foot-operated generators, photovoltaic panels, AC adapters, etc.) into DC power that can directly charge the internal lithium battery pack; the other converts the battery's electrical energy into DC power that can charge external batteries, charging them through the charging output interface. The BMS control module monitors the status of the lithium battery pack, including voltage, current, temperature, SOC, and SOH. By analyzing and integrating the collected status data, it performs real-time control of the charging and discharging process of the lithium battery pack, realizing the management function of the lithium battery pack. The lithium battery pack uses common 18650 lithium batteries, which have high technological maturity, strong stability, and good safety. It also adopts a detachable single-cell design, significantly reducing maintenance costs while improving versatility. The USB fast charging module converts the output of the lithium battery pack into a USB output. It has a dedicated USB interface communication protocol and is compatible with mainstream fast charging protocols such as PD3.0, QC3.0, PPS, BC1.2, AFC, FCP, SCP, and Apple 2.4A. It can dynamically adjust the output voltage and current through the corresponding communication protocol to meet the charging and power supply needs of various mainstream smartphones and USB devices.

[0033] In one embodiment, the charging module includes a control board, a charging board, a charging switching board, a polarity conversion board, and active charging contacts connected in sequence. (See also...) Figure 5 The control board collects the voltage of each battery connected to its interface, then sets the charging board output voltage accordingly based on the battery voltage level. It also sets the switching position of the charging switch board based on the battery connection location, enabling simultaneous charging of two battery groups. Once one battery group is fully charged, the system automatically switches to the next. The polarity conversion board automatically switches the polarity of the connected battery, allowing normal charging regardless of whether the external battery is connected correctly or incorrectly. The movable charging contacts can be freely adjusted within one degree of freedom, accommodating battery packs with various contact spacings.

[0034] In practical applications, the portable multi-source power supply device is also equipped with a portable backpack, charging cable, AC adapter, LED light, and rechargeable flashlight to realize functions such as device carrying, interconnected charging, AC charging, and emergency lighting.

[0035] The device of this invention has an interface control function and an output control function.

[0036] I. Interface Control Function

[0037] The portable multi-source power supply device software can determine the device's status based on information obtained from the signal detection module. Simultaneously, it can control the device's charging and discharging ports via I / O ports to achieve charging and discharging control. Figure 6 The flowchart shows the battery interface control function for a portable multi-source power supply device. See the description of the device's charging control port and discharging control port on / off processing requirements. Figure 1 .

[0038] Table 1 Battery Charging Modes

[0039]

[0040] II. Output Control Function

[0041] The portable multi-source power supply software can control the DC / DC module via the I2C bus to realize device output. Figure 7 The logic flowchart for the power output control function of a portable multi-source power supply device.

[0042] The processing requirements for the output voltage of the device's discharge control port are described in Table 2.

[0043] Table 2 Power Supply Modes

[0044]

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable multi-source power supply device, characterized by comprising: The mechanical power generation device, the photovoltaic power generation device, the energy management module and the charging module are connected with each other. The mechanical power generation device is a hand-cranking / foot-treading integrated power generation device, which specifically comprises a disc-type generator, a rectification and filtering module, a super capacitor group and a USB module connected in sequence. The disc-type generator uses a coreless outer rotor structure; the rectification and filtering module adopts a three-phase rectification bridge circuit composed of low conduction voltage drop diodes to rectify, filter and stabilize the three-phase alternating current generated by the disc-type generator and provide the latter circuit with the stabilized current; the super capacitor group is composed of four super capacitors connected in series and connected to an output bus through a switch, so that stable output is maintained even if the rotating speed of the hand-cranking / foot-treading is uneven; and the USB module converts the direct current output into USB interface output, which is convenient for powering various USB devices. The photovoltaic power generation device is a photovoltaic panel, which specifically comprises a photovoltaic cell panel, an MPPT controller and a USB module connected in sequence; the photovoltaic cell panel adopts a single-crystal silicon as a solar cell and an FTFE film integrated laminated packaging form, the MPPT controller and the USB module are integrated on the photovoltaic cell panel; the photovoltaic cell panel converts solar energy into electric energy, the MPPT controller samples and collects the output voltage and output current of the solar cell panel, and outputs direct current power through a maximum power tracking algorithm to realize maximum output of the portable photovoltaic panel power. The charging module comprises a control board, a charging board, a charging switching board, a polarity conversion board and a movable charging contact connected in sequence; the control board collects the voltages of the batteries connected to the battery interfaces, then sets the charging board to output corresponding voltages according to the corresponding battery voltage levels, and sets the switching position of the charging switching board according to the positions of the batteries connected to the battery interfaces, so that two groups of batteries can be charged simultaneously, and the charging of a single group of batteries is automatically switched to the next group of batteries after completion; the polarity conversion board automatically switches the polarity of the connected batteries, so that normal charging can be performed regardless of the positive or negative connection of the external batteries; and the movable charging contact is freely adjusted within one degree of freedom, and is compatible with battery groups with various battery contact spacings.

2. The portable multi-source power supply device of claim 1, wherein, The energy management module comprises a DC / DC charging board, a BMS control module, a lithium battery group and a USB fast charging module, and the BMS control module is connected with the DC / DC charging board, the lithium battery group and the USB fast charging module.

3. The portable multi-source power supply device of claim 2, wherein, The DC / DC charging board is provided with two DC / DC charging boards, and each of the two DC / DC charging boards is connected with the BMS control module.

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