An outdoor emergency power generator for mobile intelligent terminals

Abstract

The application relates to the technical field of emergency power generation equipment, in particular to an outdoor emergency power generator for a mobile intelligent terminal, which comprises a shell, a manual driving mechanism for converting human power into mechanical energy is arranged on the shell, a power management module and a power generation mechanism are arranged in the shell, the power generation mechanism is in transmission connection with the manual driving mechanism, mechanical energy is transmitted and the mechanical energy is converted into electric energy, the power management module is in electric connection with the power generation mechanism, and the electric energy generated by the power generation mechanism is stored; the power generation mechanism is provided with a transmission shaft system penetrating into the shell, and a magnetic induction mechanism coaxially arranged with the transmission shaft system; the transmission shaft system is in transmission connection with the manual driving mechanism arranged on the shell; the magnetic induction mechanism comprises a permanent magnet array connected with the transmission shaft system and a winding coil connected with the shell; the permanent magnet array and the winding coil are coaxially arranged; the power management module comprises an electric energy storage unit and an electric energy output port embedded on the shell.

Description

Technical Field

[0001] This invention relates to the field of emergency power generation equipment technology, and in particular discloses an outdoor emergency power generator for mobile smart terminals. Background Technology

[0002] Power supply for mobile smart devices in outdoor scenarios has always been a thorny issue. Traditional power acquisition methods, such as relying on the power grid, are simply unusable in the wild, remote areas, or when power outages occur due to natural disasters. Using traditional chemical fuel power generation equipment not only presents problems such as the inconvenience of carrying fuel and the potential for environmental pollution, but also the dilemma of not being able to provide continuous power after the fuel runs out. Meanwhile, existing outdoor emergency power generation devices generally suffer from low power generation efficiency. For example, some hand-cranked generators, due to unreasonable transmission structure design, cannot effectively convert human power into efficient mechanical energy, thus failing to effectively drive the generator to produce sufficient electrical energy. Furthermore, the generated power output is unstable, making it difficult to meet the high power supply stability requirements of smart devices. In addition, most outdoor power generation equipment performs poorly in terms of portability and durability. The equipment is large and heavy, inconvenient to carry, and prone to failure when facing complex and harsh outdoor environments, such as sandstorms and rain, leading to a shortened lifespan. These problems severely restrict the normal use of mobile smart devices by outdoor personnel, urgently requiring an efficient, portable, durable, and environmentally friendly outdoor emergency generator to solve the power supply problem. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide an outdoor emergency generator for mobile smart terminals.

[0004] To achieve the above objectives, the present invention provides an outdoor emergency generator for a mobile smart terminal, comprising a housing formed by a base plate and an outer shell detachably connected to the base plate; a manual drive mechanism for converting human power into mechanical energy is provided on the housing; a power management module and a generator are provided inside the housing; the generator is driven by the manual drive mechanism to transmit mechanical energy and convert it into electrical energy; the power management module is electrically connected to the generator to store the electrical energy generated by the generator; the generator has a transmission shaft system passing through the inside of the housing and an electromagnetic induction mechanism coaxially arranged with the transmission shaft system; the transmission shaft system is driven by the manual drive mechanism provided on the housing. The electromagnetic induction mechanism includes a permanent magnet array connected to the transmission shaft system and a winding coil connected to the housing. The permanent magnet array and the winding coil are coaxially arranged. The power management module includes an energy storage unit and an energy output port embedded in the housing. One end of the energy output port is connected to the energy storage unit, and the other end is coplanar with the surface of the housing. The output end of the winding coil is electrically connected to the energy storage unit. The user drives the transmission shaft system to move the permanent magnet array via a manual drive mechanism. The moving permanent magnet array cuts the magnetic field generated by the winding coil, converting mechanical energy into electrical energy output to the energy storage unit. The energy output port is electrically connected to an external smart device to output the electrical energy stored in the energy storage unit.

[0005] Furthermore, the transmission shaft system includes a shaft, a drive gear disk fixed coaxially with the shaft, and a gear set meshing with the drive gear disk. The gear set is connected to the permanent magnet array via transmission, and the shaft is rotatably connected to the base plate via bearings. The drive gear disk regulates the rotational speed of the permanent magnet array via the gear set. The gear set includes at least two meshing transmission gears, one of which meshes with the drive gear disk, and the other is fixedly connected to the permanent magnet array. The diameter of the drive gear disk is larger than the diameter of the transmission gear meshing with the drive gear disk, forming a speed-increasing transmission structure to improve the rotational speed of the permanent magnet array.

[0006] Furthermore, the permanent magnet array is composed of multiple magnetic blocks, the electromagnetic induction mechanism has an annular iron core disposed on the outer shell, the winding coil is wound on the annular iron core, the permanent magnet array is located within the annular gap of the annular iron core, and the multiple magnetic blocks are arranged around the central axis of the annular iron core.

[0007] Furthermore, the gear set has a driven gear disk meshing with the drive gear disk and an output gear disk meshing with the driven gear disk. The permanent magnet array is disposed on the output gear disk and is coaxially arranged with the output gear disk. The drive gear disk has a third gear, the output gear disk has a fourth gear, and the driven gear disk has a first gear and a second gear coaxially arranged. The third gear meshes with the first gear, and the second gear meshes with the fourth gear. The diameter of the fourth gear is larger than the diameter of the first gear, and the diameter of the second gear is larger than the diameter of the fourth gear. The gear set forms a two-stage speed-increasing structure to increase the rotational speed of the permanent magnet array.

[0008] Furthermore, the power management module also includes a sliding switch, which has a sliding block disposed on the outside of the housing, a conductive spring connected to the sliding block, and a charging terminal and a discharging terminal fixed inside the housing. The housing is provided with a sliding groove that cooperates with the sliding block to slide. The sliding block is manually driven by the user to move along the sliding groove, so as to drive the conductive spring to connect the charging terminal or the discharging terminal to realize the switching control of the power supply.

[0009] Furthermore, the manual drive mechanism has an energy storage drive disk, which is equipped with a spring and a disk shaft. A drive shaft for mounting a drive gear disk is rotatably mounted on the base plate. One end of the disk shaft protrudes from the outer shell and is equipped with a rocker arm, while the other end is coaxially fixed to the drive shaft. One end of the spring is connected to the disk shaft, and the other end is fixed to the outer shell. When the rocker arm is manually turned, it drives the drive shaft to rotate the drive gear disk in the forward direction via the disk shaft. At the same time, the spring is tightened to store elastic potential energy in sync with the rotation of the disk shaft. When the rocker arm is released, the elastic potential energy stored in the spring causes the disk shaft to drive the drive shaft in the reverse direction, causing the drive gear disk to rotate in the reverse direction. Both the forward and reverse rotation of the drive gear disk will cause the permanent magnet array to rotate through the transmission shaft system. The rotational motion of the permanent magnet array cuts the magnetic field generated by the winding coil, realizing the conversion of mechanical energy into electrical energy.

[0010] Furthermore, one end of the rocker arm is rotatably connected to the disc shaft via a pin, and the other end of the rocker arm is provided with a grip for easy hand handling. When the rocker arm is stored, it rotates around the pin shaft and folds to fit the surface of the outer shell. When in operation, the rocker arm generates electricity by rotating around the disc shaft via the pin shaft.

[0011] Furthermore, the output gear disk has multiple mounting slots for embedding permanent magnets. The mounting slots are filled with epoxy resin to fix the permanent magnets. The multiple mounting slots are arranged around the rotation axis of the output gear disk. The base plate is provided with an output shaft for mounting the output gear disk. The output gear disk is provided with a stepped shaft collar that mates with the output shaft. The mounting slots, the fourth gear, and the stepped shaft collar are arranged along the length of the output shaft. The shaft diameter of the stepped shaft collar decreases from the fourth gear toward the direction away from the fourth gear.

[0012] Furthermore, the magnetic blocks are neodymium iron boron permanent magnets, and the polarities of adjacent magnetic blocks are arranged alternately. The rotation axis of the permanent magnet array coincides with the central axis of the toroidal iron core, forming a coaxial alternating magnetic field power generation structure. The winding coil includes at least two independent windings, each of which is symmetrically arranged along the rotation axis of the toroidal iron core. The output terminals of each winding are connected to the power management module in parallel or series. The alternating magnetic field generated when the permanent magnet array rotates cuts each winding coil perpendicularly, and the induced electromotive forces of each winding coil are superimposed.

[0013] Furthermore, the power output port is a USB-C interface, which allows users to charge bidirectionally. The housing is equipped with a waterproof sealing ring that matches the USB-C interface.

[0014] The beneficial effects of this invention are:

[0015] (1) High-efficiency power generation and stable power supply: Through unique transmission shaft system and speed-increasing gear set design, such as the diameter difference between the drive gear disk and the transmission gear, and the two-stage speed-increasing structure, the rotational speed of the permanent magnet array can be greatly improved, enhancing the conversion efficiency of mechanical energy to electrical energy. The coaxial arrangement of the permanent magnet array and the toroidal iron core and the winding coil layout generate a strong alternating magnetic field, achieving high-efficiency power generation. The power management module integrates an energy storage unit, and with standardized energy output ports with multiple characteristics (such as the USB-C interface supporting bidirectional charging, intelligent voltage regulation, PD fast charging, etc.), it ensures stable power output and can be adapted to a variety of mainstream smart devices.

[0016] (2) Portable and durable design: The housing is assembled with a base plate and a detachable outer shell, which facilitates maintenance and reduces transportation volume. The crank of the manual drive mechanism is foldable, reducing the space occupied when carrying it. The overall structure is compact, and the device has excellent dust and water resistance, such as the embedded design of the power output port and the USB-C interface equipped with a waterproof sealing ring, which can adapt to harsh outdoor environments and extend its service life.

[0017] (3) Environmentally friendly manual emergency power generation: Power generation is driven by human power, with no fuel dependence and zero emissions, which is in line with the trend of green energy. The manual drive mechanism is reasonably designed, such as the energy storage drive disk combined with the spring to realize bidirectional power generation, reducing operator fatigue and complexity. In outdoor emergency scenarios where there is no power grid or traditional power source, it can reliably provide emergency power to users and improve their survival guarantee capabilities. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an outdoor emergency generator for a mobile smart terminal according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention after the outer shell has been removed;

[0020] Figure 3 This is a schematic diagram of the first partial exploded structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the second partial exploded structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the electromagnetic induction mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the first partial structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the sliding switch of the present invention;

[0025] Figure 8 This is a schematic diagram of the ratchet and pawl structure of the present invention;

[0026] Figure 9 This is a schematic diagram of a second partial structure of the present invention. Reference numerals include: 1. Housing; 11. Base plate; 12. Outer shell; 13. Slide groove; 14. Drive shaft; 15. Output shaft; 16. Waterproof sealing ring; 17. Positioning threaded post; 18. Screw hole; 19. Stepped portion; 2. Manual drive mechanism; 21. Energy storage drive disk; 22. Spring; 23. Disk shaft; 24. Rocker arm; 25. Grip portion; 3. Power management module; 31. Energy storage unit; 32. Energy output port; 33. Slide switch; 331. Sliding block; 332. Conductive spring; 333. Charging terminal; 334. Discharging terminal; 4. Power generation mechanism. 41. Transmission shaft system; 411. Shaft body; 412. Drive gear disk; 4121. Third gear; 413. Gear set; 414. Transmission gear; 415. Driven gear disk; 4151. First gear; 4152. Second gear; 416. Output gear disk; 4161. Fourth gear; 4162. Mounting slot; 4163. Stepped collar; 417. Ratchet; 418. Pawl; 42. Electromagnetic induction mechanism; 421. Permanent magnet array; 422. Winding coil; 423. Magnetic fastener; 424. Toroidal iron core; 425. Independent winding; 5. Display screen. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0028] Please see Figures 1 to 9As shown, an outdoor emergency generator for a mobile smart terminal according to the present invention includes a housing 1, which is formed by a base plate 11 and an outer shell 12 detachably connected to the base plate 11. The housing 1 is provided with a manual drive mechanism 2 for converting human power into mechanical energy. The housing 1 contains a power management module 3 and a generator 4. The generator 4 is driven by the manual drive mechanism 2 to transmit mechanical energy and convert it into electrical energy. The power management module 3 is electrically connected to the generator 4 to store the electrical energy generated by the generator 4. The generator 4 has a transmission shaft system 41 passing through the inside of the housing 1 and an electromagnetic induction mechanism 42 coaxially arranged with the transmission shaft system 41. The transmission shaft system 41 is driven by the manual drive mechanism 2 on the housing 1. The electromagnetic induction mechanism 42 includes a connecting transmission... The permanent magnet array 421 of the shaft system 41 and the winding coil 422 connected to the housing 1 are coaxially arranged. The power management module 3 includes an energy storage unit 31 and an energy output port 32 embedded in the housing 12. One end of the energy output port 32 is connected to the energy storage unit 31, and the other end is coplanar with the surface of the housing 12. The output end of the winding coil 422 is electrically connected to the energy storage unit 31. The user drives the transmission shaft system 41 to move the permanent magnet array 421 via the manual drive mechanism 2. The moving permanent magnet array 421 cuts the magnetic field generated by the winding coil 422, converting mechanical energy into electrical energy output to the energy storage unit 31. The energy output port 32 is electrically connected to an external smart device to output the electrical energy stored in the energy storage unit 31.

[0029] In practical use, the manual drive mechanism 2 directly converts human power into mechanical energy. Combined with the coaxial permanent magnet array 421 and winding coil 422, this achieves efficient conversion of mechanical energy into electrical energy. This fuel-free power generation method is particularly suitable for outdoor emergency scenarios (such as wilderness emergencies or power outages due to natural disasters), ensuring users can quickly obtain power when there is a lack of grid or traditional power sources, thus enhancing emergency survival capabilities. The housing 1 adopts an assembly design of a base plate 11 and a detachable outer shell 12, which simplifies the maintenance and replacement process of internal components, reduces transportation volume, and enhances portability. At the same time, the flush-mounted embedded design of the power output port 32 with the surface of the outer shell 12 not only avoids the risk of wear caused by protruding interfaces but also improves dust and water resistance, extending the service life of the device.

[0030] The integrated power management module 3 buffers and stores electrical energy through the energy storage unit 31 (such as a lithium battery pack), ensuring stable power output. Standardized power output ports 32 (such as USB-C and wireless charging modules) are compatible with mainstream smart devices, meeting the charging needs of mobile phones, GPS devices, lighting tools, and other devices in various scenarios, thus addressing the diverse pain points of outdoor power equipment. The fully manual operation mode eliminates dependence on environmental conditions such as light and wind, allowing for stable operation day and night, and in complex weather conditions. Its zero-emission characteristics align with the trend of green energy development, making it particularly suitable for ecologically sensitive areas and reducing the secondary impact of outdoor activities on the natural environment. The manual drive mechanism 2, through a gear set 413 or ratchet structure design, reduces the physical effort required for continuous operation and is equipped with an anti-reverse device to prevent energy feedback loss. The power generation mechanism 4 is physically isolated from the circuit system, avoiding the risk of short circuits in humid environments and ensuring user safety.

[0031] Specifically, the transmission shaft system 41 includes a shaft 411, a drive gear disk 412 coaxially fixed with the shaft 411, and a gear set 413 meshing with the drive gear disk 412. The gear set 413 is connected to the permanent magnet array 421 in a transmission connection. The shaft 411 is rotatably connected to the base plate 11 through bearings. The drive gear disk 412 regulates the rotational speed of the permanent magnet array 421 via the gear set 413. The gear set 413 includes at least two meshing transmission gears 414, one of which meshes with the drive gear disk 412, and the other is fixedly connected to the permanent magnet array 421. The diameter of the drive gear disk 412 is larger than the diameter of the transmission gear 414 meshing with the drive gear disk 412, forming a speed-increasing transmission structure to increase the rotational speed of the permanent magnet array 421.

[0032] In practical use, the difference in diameter between the drive gear disk 412 and the transmission gear 414 forms a speed-increasing transmission structure, significantly improving the rotational speed of the permanent magnet array 421. For example, when the diameter of the drive gear disk 412 is much larger than that of the transmission gear 414 it meshes with, a speed-increasing ratio of tens of times can be achieved (similar to the speed-increasing principle of gearboxes in wind power generation), thereby enhancing the frequency at which permanent magnets cut magnetic field lines and significantly improving the conversion efficiency of mechanical energy to electrical energy. This design is particularly suitable for manually driven scenarios, where the required speed threshold for power generation can be met with minimal human input. The gear set 413 adopts a multi-stage meshing design (such as parallel shaft or planetary gear set 413), achieving a high transmission ratio within a limited space, meeting the stringent requirements of mobile devices for size and weight. For example, wind power generation gearboxes save nacelle space by combining planetary gears with parallel shafts, and the compact layout of the gear set 413 in this design also reduces the size of the housing 1, making it easier to carry and use outdoors. In addition, the speed-increasing transmission does not rely on large-sized permanent magnets, further reducing the overall weight.

[0033] The drive shaft system 41 reduces vibration and off-center load during high-speed rotation through bearing support and gear meshing precision control. Drawing on dynamic modeling experience of wind turbine shaft systems, flexible support structures (such as elastic planetary gear shafts) can balance load distribution. In this design, the rigid meshing of the gear set 413 and its bearing fixation effectively absorb instantaneous impacts during manual operation, preventing mechanical damage caused by sudden speed changes. The modular design of the gear set 413 and the drive gear disk 412 facilitates disassembly, replacement, and lubrication maintenance. For example, wind turbine gearboxes require regular inspection of the planetary gears and bearings; this structure, with its removable housing 12, simplifies the maintenance process of the gear set 413, extending equipment lifespan. Furthermore, the choice of material for the speed-increasing gears (such as high-wear-resistant alloy steel) further reduces wear risk. The large diameter design of the drive gear disk 412 reduces manual driving force through leverage, while the subsequent speed-increasing transmission of the gear set 413 converts low-speed, high-torque input into high-speed, low-torque output. For example, a gear set 413 structure in a hand-cranked igniter can reduce user fatigue. This design balances operational comfort and power generation efficiency through two-stage transmission, making it suitable for long-term emergency use scenarios.

[0034] Specifically, the permanent magnet array 421 is composed of multiple magnetic blocks, the electromagnetic induction mechanism 42 has an annular iron core 424 disposed on the outer shell 12, the winding coil 422 is wound on the annular iron core 424, the permanent magnet array 421 is located in the annular gap of the annular iron core 424, and the multiple magnetic blocks are arranged around the central axis of the annular iron core 424.

[0035] In practical applications, the permanent magnet array 421, arranged in a ring within the gap of the toroidal iron core 424, forms a closed magnetic circuit, significantly enhancing the magnetic field strength and reducing magnetic leakage. Referring to the Halbach array principle, the specific orientation of multiple magnetic blocks can directionally enhance the magnetic flux density within the toroidal gap. This design maximizes the efficiency of the winding coil 422 in cutting magnetic field lines, thereby improving the conversion efficiency from mechanical energy to electrical energy. Furthermore, the high permeability material (such as silicon steel sheet) of the toroidal iron core 424 further guides the magnetic field lines along the core path, reducing magnetic reluctance. Combined with the strong magnetic field of the permanent magnets, this improves the output stability of the induced electromotive force. The ring arrangement of the permanent magnet array 421 creates a spatially symmetrical magnetic field distribution along the toroidal gap, reducing local magnetic field distortion. The Halbach array's magnetic field distribution exhibits sinusoidal characteristics, reducing electromagnetic noise and core eddy current losses, while ensuring stable current output during power generation (especially suitable for AC scenarios). This design maintains continuous power output even when manually driven with fluctuating speeds, meeting the reliability requirements of emergency equipment.

[0036] The integrated layout of the toroidal core 424 and the gap between the permanent magnets significantly reduces the size of the electromagnetic induction mechanism 42. The arrangement of the permanent magnets around the toroidal core 424 avoids the need for redundant support structures required by traditional linear arrangements. Combined with the speed-increasing drive shaft 41, the overall device is easier to carry. The closed magnetic circuit design of the toroidal core 424 reduces magnetic field leakage and lowers electromagnetic interference to surrounding electronic equipment (electromagnetic induction requires controlled magnetic flux paths). Simultaneously, the core itself acts as a heat dissipation channel, evenly distributing the heat generated by the winding coil 422 (the magnetic components are protected from mechanical impact and environmental influences by the iron shell), ensuring controllable temperature rise during long-term power generation. The arrangement of the permanent magnets around the central axis of the toroidal core 424 creates a dynamic rotating magnetic field when the manual drive shaft 14 rotates, forming a continuous cutting effect with the fixed position of the winding coil 422. This design can adapt to power generation needs at different speeds, especially maintaining effective power output through optimized magnetic field spatial distribution during low-speed manual input.

[0037] Specifically, the gear set 413 has a driven gear disk 415 meshing with the drive gear disk 412 and an output gear disk 416 meshing with the driven gear disk 415. The permanent magnet array 421 is disposed on the output gear disk 416 and is coaxially arranged with the output gear disk 416. The drive gear disk 412 has a third gear 4121, the output gear disk 416 has a fourth gear 4161, and the driven gear disk 415 has a first gear 4151 and a second gear 4152 coaxially arranged. The third gear 4121 meshes with the first gear 4151, and the second gear 4152 meshes with the fourth gear 4161. The diameter of the fourth gear 4161 is larger than the diameter of the first gear 4151, and the diameter of the second gear 4152 is larger than the diameter of the fourth gear 4161. The gear set 413 forms a two-stage speed-increasing structure to increase the rotational speed of the permanent magnet array 421.

[0038] In actual use, a stepped speed increase ratio is formed through a two-stage meshing transmission of drive gear disk 412 (third gear 4121) → driven gear disk 415 (first and second gears 4152) → output gear disk 416 (fourth gear 4161). The first stage (the third gear 4121 meshing with the first gear 4151) achieves initial speed increase, while the second stage (the second gear 4152 meshing with the fourth gear 4161) further amplifies the rotational speed, making the rotational speed of the permanent magnet array 421 much higher than the manually input speed. This design significantly improves the frequency at which the permanent magnets cut magnetic field lines, solves the problem of insufficient speed driven by manual power, and ensures stable power output even under low power input. The driven gear disk 415 adopts a coaxial dual-gear integrated design (the first and second gears 4152 are coaxially fixed), reducing the space occupied by the transmission chain and avoiding the volume redundancy caused by the multi-axis dispersed layout. The output gear disk 416 is coaxially mounted with the permanent magnet array 421, directly transmitting rotational power and eliminating energy loss from intermediate connecting components. The gradient configuration of gear diameters (second gear 4152 > fourth gear 4161 > first gear 4151) achieves a high speed ratio within a limited space, while the precise fit of the gear meshing surfaces reduces transmission vibration and ensures the stability of high-speed operation.

[0039] The two-stage speed-increasing structure transforms low-speed, high-torque manual input into high-speed, low-torque permanent magnet drive. Users can drive the system with relatively small torque by applying a large-diameter drive gear 412, significantly reducing operator fatigue, especially suitable for long-term emergency power generation scenarios. The rigid meshing of the gear set 413 and the bearing support design further prevent "jamming" or reverse energy feedback caused by sudden speed changes, improving operational smoothness. The gear ratio of the two-stage speed-increasing structure can be flexibly configured by adjusting the diameter of each gear to adapt to the speed requirements of different specifications of the permanent magnet array 421. For example, for high-power output scenarios, the diameter difference between the second gear 4152 and the fourth gear 4161 can be increased to further improve the overall speed ratio without reconstructing the entire transmission chain, providing technical redundancy for product series development.

[0040] Specifically, the power management module 3 further includes a sliding switch 33, which has a sliding block 331 disposed on the outside of the housing 12, a conductive spring 332 connected to the sliding block 331, and a charging terminal 333 and a discharging terminal 334 fixed inside the housing 12. The housing 12 is provided with a sliding groove 13 that cooperates with the sliding block 331 to slide. The sliding block 331 is manually driven by the user to move along the sliding groove 13 to drive the conductive spring 332 to connect the charging terminal 333 or the discharging terminal 334 to realize the switching control of the power supply.

[0041] In practical use, the charging and discharging mode switching is achieved through a purely mechanical sliding structure, without reliance on electronic components, thus avoiding the risk of failure of complex circuits in outdoor humid and high / low temperature environments. The direct contact between the conductive spring 332 and the terminal ensures electrical connection stability, making it particularly suitable for emergency scenarios with frequent vibrations, and offering higher shock resistance compared to traditional buttons or touch switches. The physically isolated layout of the charging terminal 333 and discharging terminal 334, combined with the limiting and locking design of the slide groove 13, forces the sliding block 331 to remain only in the "charging" or "discharging" position, preventing short circuits or energy feedback caused by partial contact. Users can confirm the switch status through tactile feedback (such as the damping sensation of the position), avoiding equipment damage caused by accidental operation. The operation method of the sliding block 331 moving along the linear slide groove 13 is intuitive, allowing for mode switching with a single swipe, which is more suitable for the rapid power supply needs in emergency scenarios compared to multi-level menu digital control. The position markings (such as arrows and text) on the surface of the casing 12 further reduce the learning cost, allowing even non-professionals to master it instantly.

[0042] Specifically, the manual drive mechanism 2 has an energy storage drive disk 21, which is equipped with a spring 22 and a disk shaft 23. A drive shaft 14, on which a drive gear disk 412 is rotatably mounted, is mounted on the base plate 11. One end of the disk shaft 23 protrudes from the outer casing 12 and is equipped with a rocker arm 24, while the other end is coaxially fixed to the drive shaft 14. One end of the spring 22 is connected to the disk shaft 23, and the other end is fixed to the outer casing 12. Manually cranking the rocker arm 24 causes the drive shaft 14 to transmit the drive gear via the disk shaft 23. The wheel 412 rotates in the forward direction, and at the same time, the rotation of the clockwork 22 and the synchronous disc shaft 23 is tightened to store elastic potential energy. After the rocker arm 24 is released, the elastic potential energy stored in the clockwork 22 causes the disc shaft 23 to drive the drive shaft 14 in the reverse direction, causing the drive gear disk 412 to rotate in the reverse direction. Both the forward and reverse rotation of the drive gear disk 412 will cause the permanent magnet array 421 to rotate through the transmission shaft system 41. The rotational motion of the permanent magnet array 421 cuts the magnetic field generated by the winding coil 422, realizing the conversion of mechanical energy into electrical energy.

[0043] In actual use, a single crank of the joystick 24 triggers bidirectional rotational power generation: when cranked forward, the user directly drives the drive gear 412 to rotate and generate electricity; after releasing the joystick 24, the elastic potential energy stored in the spring 22 drives the gear set 413 in the reverse direction to continue generating electricity. This bidirectional energy conversion mechanism breaks through the limitations of traditional unidirectional power generation, achieving double the electrical energy output in a single operation, significantly improving energy utilization. The energy stored in the spring 22 fills the intermittent pauses in manual operation, ensuring continuous power generation and avoiding power fluctuations in traditional hand-cranked power generation; the user does not need to control the direction of the joystick 24, as both forward and reverse rotations effectively generate electricity, reducing operational complexity and adapting to the chaotic use state in emergency scenarios. The elastic potential energy gradient adjustment design allows even light cranking to accumulate energy through multiple operations, ultimately driving efficient power generation.

[0044] A purely mechanical spring 22 replaces the electronic inverter circuit, eliminating the risk of electronic component failure in outdoor environments. The spring 22 acts as a flexible transmission medium to buffer instantaneous overload impacts, protecting the gear set 413 and the permanent magnet array 421. The coaxial rigid connection between the disc shaft 23 and the drive shaft 14 ensures no idling loss during manual input; all mechanical energy is converted into electrical energy or stored. In situations where the user cannot operate the system, pre-stored energy can maintain basic power supply for several minutes, providing a power buffer for critical functions such as sending distress signals. The spring 22 automatically stops generating electricity after fully releasing its energy, avoiding the risk of coil overheating due to idling of the permanent magnets. The system achieves autonomous safety control through a mechanical power-off fuse, requiring no manual intervention.

[0045] Specifically, one end of the rocker arm 24 is rotatably connected to the disc shaft 23 via a pin, and the other end of the rocker arm 24 is provided with a grip part 25 for easy hand holding. When the rocker arm 24 is stored, it rotates around the pin and folds to fit the surface of the outer shell 12. When working, the rocker arm 24 generates electricity by rotating around the disc shaft 23 via the pin.

[0046] In actual use, the joystick 24 can be folded and rotated via a pin to completely fit the surface of the outer shell 12, eliminating the protruding structure of traditional fixed joysticks 24, significantly reducing the overall size of the device, and making it easy to put into a backpack or pocket. With no exposed parts after folding, it avoids snagging or collision damage during transportation, improving safety when carried outdoors. The grip 25 features an anti-slip texture or soft rubber coating, enhancing hand grip stability and adapting to the operational needs of harsh environments such as humidity and low temperatures. When unfolded, the joystick 24 forms a rigid connection via a pin lock, ensuring zero power transmission loss during power generation. Simultaneously, it can be quickly unfolded / folded with a single finger, enabling one-handed operation.

[0047] When folded, the joystick 24 is protected by the surface of the housing 12, preventing sand and rainwater from entering the pin's rotation gap and reducing the risk of internal corrosion or jamming. The pin is made of stainless steel combined with a self-lubricating bearing, which can withstand high-frequency folding actions and extend its service life. The compact storage form reduces the probability of the device getting tangled in external objects, making it suitable for narrow escape routes or disaster ruins. When unfolded, the lever length of the joystick 24 and the position of the grip 25 are ergonomically optimized, allowing for stable force application even when wearing gloves or with hand injuries, ensuring reliable power generation in emergency situations.

[0048] Specifically, the output gear disk 416 has multiple mounting slots 4162 for embedding permanent magnets. The mounting slots 4162 are filled with epoxy resin to fix the permanent magnets. The multiple mounting slots 4162 are arranged around the rotation axis of the output gear disk 416. The base plate 11 is provided with an output shaft 15 for mounting the output gear disk 416. The output gear disk 416 is provided with a stepped shaft collar 4163 that cooperates with the output shaft 15. The mounting slots 4162, the fourth gear 4161, and the stepped shaft collar 4163 are arranged along the length of the output shaft 15. The shaft diameter of the stepped shaft collar 4163 decreases from the fourth gear 4161 in the direction away from the fourth gear 4161.

[0049] In actual use, the mounting slots 4162, which are evenly arranged around the shaft 23 of the output gear disk 416, are precision machined to ensure that the circumferential angle error of the permanent magnet array 421 is ≤0.5°, eliminating magnetic field distortion caused by magnetic pole misalignment. After the epoxy resin is filled and cured, it forms a wrap-around fixation, which not only resists the centrifugal force of high-speed rotation (can withstand ≥10,000rpm conditions), but also absorbs the vibration energy transmitted by gear meshing, preventing the permanent magnets from falling off or breaking, and improving long-term reliability in outdoor bumpy environments. The mounting slots 4162, the fourth gear 4161, and the stepped shaft collar 4163 are compactly arranged along the length of the output shaft 15, realizing the three-dimensional spatial reuse of the permanent magnet array 421, the transmission gear 414, and the support shaft system, reducing the axial space occupation by more than 30% compared with the traditional split design. The stepped collar 4163 features a gradually decreasing shaft diameter design, which not only matches the inner ring size of the bearing to achieve interference fit (tolerance H7 / h6), but also reduces stress concentration through a smooth transition of the cross section, ensuring fatigue resistance under high speed and heavy load.

[0050] The stepped collar 4163 mates with the stepped hole of the output shaft 15, allowing for quick axial positioning and disassembly of the output gear disk 416 via a locking nut at the shaft end. Replacement of the permanent magnet assembly can be completed without special tools. After curing, the epoxy resin forms an insulating layer, preventing direct contact between the permanent magnet and the metal mounting groove 4162, preventing electrochemical corrosion, and extending the lifespan of core components. The coaxiality error between the annular arrangement of the permanent magnets and the output gear disk 416 is ≤0.02mm, ensuring consistent cutting distances between each magnetic pole and the winding coil 422 during rotation. This improves the uniformity of the magnetic field distribution by more than 15%, reduces eddy current losses, and enhances the stability of power output. The low thermal conductivity of the epoxy resin (thermal conductivity ≤0.2W / m·K) blocks heat conduction between the permanent magnet and the gear disk, preventing magnetic performance degradation caused by temperature increases.

[0051] Specifically, the magnetic blocks are neodymium iron boron permanent magnets, and the polarities of adjacent magnetic blocks are arranged alternately. The rotation axis of the permanent magnet array 421 coincides with the central axis of the annular iron core 424, forming a coaxial alternating magnetic field power generation structure. The winding coil 422 includes at least two independent windings 425, and each independent winding 425 is symmetrically arranged along the rotation axis of the annular iron core 424. The output ends of each winding are connected to the power management module 3 in parallel or series. The alternating magnetic field generated when the permanent magnet array 421 rotates vertically cuts each winding coil 422, and the induced electromotive forces of each winding coil 422 are superimposed.

[0052] In practical applications, alternating polarity arrangements of neodymium iron boron permanent magnets (magnetic energy product ≥ 50 MGOe) are used to form a strong alternating magnetic field, with a magnetic flux density 3-5 times higher than that of traditional ferrite magnets. The coaxial rotation of the permanent magnet array 421 and the toroidal core 424 ensures that the magnetic field cutting direction is always perpendicular to the plane of the winding coil 422, maximizing the rate of change of magnetic flux (ΔΦ / Δt) and increasing the single-turn induced electromotive force by more than 40%. The symmetrical layout and electromotive force superposition design of the multi-segment winding coil 422 further increase the total output power to 2-3 times that of a single winding. The alternating polarity of adjacent permanent magnets forms a sinusoidal magnetic field distribution, reducing harmonic interference caused by magnetic field distortion. Multiple independent windings 425 are symmetrically arranged along the axis to cancel out induced voltage fluctuations caused by mechanical eccentricity, resulting in an output ripple coefficient ≤ 5%, suitable for the power supply requirements of precision electronic equipment. The flexible parallel / series switching function of the windings allows for wide voltage compatibility with 5V-12V smart devices.

[0053] The multi-segment winding physical isolation design enables fault tolerance: when a single winding segment fails, the remaining windings can still maintain more than 50% of the rated power output. Rigid coaxial positioning of the permanent magnet and the iron core (coaxiality ≤0.01mm) avoids dynamic imbalance during high-speed rotation, extending bearing life by 30% and meeting the requirements of high-frequency outdoor applications. The high coercivity characteristics of the neodymium iron boron magnet (Hc≥12kOe) suppress magnetic performance decay caused by temperature rise (operating temperature range -40℃~150℃). The symmetrical 422 winding coil layout balances the eddy current losses in the iron core, and the epoxy resin encapsulated heat dissipation channels ensure that the system temperature rise is ≤25K during full-load operation, eliminating the risk of insulation aging.

[0054] Specifically, the power output port 32 is a USB-C interface, which allows users to charge bidirectionally. The housing 12 is equipped with a waterproof sealing ring 16 that matches the USB-C interface.

[0055] In actual use, the USB-C port supports the PD fast charging protocol (100W / 20V 5A) and can intelligently identify the voltage requirements of loads such as mobile phones, drones, and lighting equipment (5V-20V adaptive), achieving a maximum power conversion efficiency of 94%. Bidirectional charging capability allows the device to provide power in emergencies and can also replenish the built-in battery through external power sources such as solar panels, forming a closed-loop energy cycle. The waterproof sealing ring 16 is made of fluororubber, combined with an IP67-level sealing structure, which can withstand heavy rain (immersion in 1m water for 30 minutes) and sand and dust (particle size ≤75μm). The gold-plated contacts and self-cleaning spring design inside the interface eliminate the risk of oxidation and corrosion, ensuring that the contact resistance remains ≤20mΩ after 10,000 insertions and removals. The reversible blind insertion characteristic avoids accidental operation in dark environments, ensuring a 100% insertion success rate; the interface and the outer shell 12 are coplanar (protrusion height ≤0.5mm) to prevent breakage due to accidental impact. Built-in overcurrent and short-circuit protection chips automatically cut off the circuit when the equipment is dropped or the cable is bent, eliminating the risk of leakage.

[0056] In this embodiment, the winding coil 422 is provided with an insulating layer, which wraps the surface of the winding coil 422 to achieve physical isolation from the permanent magnet array 421. The surface of the toroidal iron core 424 is sprayed with a ceramic insulating coating to achieve double electrical isolation between the winding coil 422 and the permanent magnet array 421.

[0057] In practical applications, the double insulation system (winding insulation layer + core ceramic coating) effectively blocks the current path between the coil and the permanent magnet, significantly reducing the risk of short circuits. Especially under high-frequency or high-voltage conditions, the ceramic coating (dielectric strength > 15kV / mm) can withstand stronger electric fields, preventing insulation breakdown and ensuring the safety of personnel and equipment. The 50-100μm thick Al2O3 ceramic coating on the core surface increases the core resistivity by 3-5 orders of magnitude, reduces eddy current losses to 10%-15% of those without the coating, and improves motor efficiency by 1.5%-2%. Actual measurements show that at a 10kHz operating frequency, the temperature rise is 18-22℃ lower than with traditional insulation.

[0058] The ceramic layer formed by plasma spraying achieves a microhardness of HV800-1200, with wear resistance 8-10 times higher than epoxy resin. Combined with a 0.2mm thick polyimide winding insulation layer, the overall structure's lifespan is extended to over 4000 hours under 10-500Hz vibration conditions (IEC 60068-2-6 standard). The thermal conductivity of the ceramic coating (20-30W / m·K) is two orders of magnitude higher than conventional insulating varnish (0.2-0.5W / m·K). Combined with the insulation layer's temperature resistance rating (H class, 180℃), the winding hot spot temperature is reduced by 25-30℃, and power density is increased by 15%-20%. Verified by ASTM B117 salt spray testing, the dual protection system extends the equipment's corrosion resistance in a 5% NaCl environment from 500h to over 3000h, and maintains an insulation resistance >10GΩ under humidity tolerance (95%RH) conditions.

[0059] In this embodiment, the outer casing 12 is embedded with a display screen 5 that is electrically connected to the power management module 3. The display screen 5 is used to provide real-time feedback of power generation information.

[0060] In actual use, users can view the power generation status at any time through display screen 5, such as power generation and efficiency, and keep abreast of the equipment's operating status. It allows for the intuitive detection of power generation anomalies, facilitating quick troubleshooting and problem-solving, and reducing the risk of equipment failure. It also provides data support to the power management module 3, enabling the optimization of power generation strategies and improving energy utilization efficiency.

[0061] In this embodiment, the outer shell 12 and the bottom cover are connected by bolts. The outer shell 12 is provided with a plurality of positioning threaded posts 17, and the bottom cover is provided with a plurality of screw holes 18 corresponding to the plurality of positioning threaded posts 17. The bolts pass through the screw holes 18 and are screwed to the positioning threaded posts 17. The plurality of screw holes 18 are arranged around the central axis of the bottom cover, and the plurality of positioning threaded posts 17 are configured to cooperate with the plurality of screw holes 18. The outer shell 12 is provided with a stepped portion 19, which is recessed from the outer periphery of the outer shell 12 and the bottom plate 11 is accommodated in the stepped portion 19.

[0062] In actual use, the positioning threaded posts 17 correspond one-to-one with the screw holes 18 and are arranged around the central axis of the bottom cover, ensuring accurate alignment and installation of the bottom cover and the outer shell 12, and guaranteeing the coaxiality and stability of the overall structure. The bolted connection provides reliable fastening force, enabling a tight connection between the outer shell 12 and the bottom cover, withstanding certain external impacts and vibrations, and preventing loosening during operation. The stepped portion 19 fits with the outer periphery of the base plate 11, providing clear positioning and support for the installation of the base plate 11, reducing assembly difficulty and improving assembly efficiency. The tight connection structure effectively prevents dust, moisture, and other external impurities from entering the equipment, improving its protective performance and service life.

[0063] In this embodiment, the drive gear disk 412 is provided with a one-way ratchet 417, which is coaxially arranged with the drive gear disk 412. The housing 1 is provided with a pawl 418 that works in conjunction with the one-way ratchet 417. The one-way ratchet 417 and the pawl 418 are used to ensure that the manual drive mechanism 2 can only transmit torque in one direction, so as to avoid energy loss caused by the gear set 413 rotating in the opposite direction when the spring 22 rebounds.

[0064] The engagement of the unidirectional ratchet 417 and pawl 418 restricts the drive mechanism to transmit torque in only one direction (e.g., clockwise) through the principle of tooth meshing. When the mainspring 22 rebounds or the gear set 413 is subjected to a reverse force, the pawl 418 engages with the tooth groove of the ratchet 417, preventing reverse rotation and avoiding energy loss caused by the gear set 413 spinning idly. The external meshing ratchet 417 mechanism, through rigid tooth meshing, is more suitable for scenarios requiring high loads and precise control compared to the friction ratchet 417. Furthermore, the ratchet 417's rotation angle can be adjusted by the number of teeth, highly matching the stepping control requirements of the mainspring 22 drive system. During the mainspring 22's rebound, if the gear set 413 spins idly in the reverse direction, it may cause impact or wear on the tooth surface. The rigid meshing of the pawl 418 and ratchet 417 absorbs the reverse impact force and protects the gear set 413 through a stop function, extending the equipment's lifespan.

[0065] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. An outdoor emergency generator for mobile smart terminals, characterized in that: The device includes a housing (1), which is formed by a base plate (11) and an outer shell (12) detachably connected to the base plate (11). The housing (1) is provided with a manual drive mechanism (2) for converting human power into mechanical energy. The housing (1) is provided with a power management module (3) and a power generation mechanism (4). The power generation mechanism (4) is connected to the manual drive mechanism (2) for transmitting mechanical energy and converting mechanical energy into electrical energy. The power management module (3) is connected to the power generation mechanism (4) for storing the electrical energy generated by the power generation mechanism (4). The power generation mechanism (4) has a transmission shaft system (41) passing through the inside of the housing (1) and an electromagnetic induction mechanism (42) coaxially arranged with the transmission shaft system (41). The transmission shaft system (41) is connected to the manual drive mechanism (2) arranged on the housing (1). The electromagnetic induction mechanism (42) includes a permanent magnet array connected to the transmission shaft system (41). (421) and the winding coil (422) connecting the housing (1), the permanent magnet array (421) and the winding coil (422) are coaxially arranged, the power management module (3) includes an energy storage unit (31) and an energy output port (32) embedded in the housing (12), one end of the energy output port (32) is connected to the energy storage unit (31), and the other end is coplanar with the surface of the housing (12), the output end of the winding coil (422) is electrically connected to the energy storage unit (31); the user drives the transmission shaft system (41) to drive the permanent magnet array (421) to move via the manual drive mechanism (2), the moving permanent magnet array (421) cuts the magnetic field generated by the winding coil (422) and converts mechanical energy into electrical energy output to the energy storage unit (31), the energy output port (32) is electrically connected to an external smart device for outputting the energy stored in the energy storage unit (31).

2. An outdoor emergency generator for a mobile smart terminal according to claim 1, characterized in that: The transmission shaft system (41) includes a shaft (411), a drive gear disk (412) fixed coaxially with the shaft (411), and a gear set (413) meshing with the drive gear disk (412). The gear set (413) is connected to the permanent magnet array (421) for transmission. The shaft (411) is rotatably connected to the base plate (11) through a bearing. The drive gear disk (412) regulates the rotational speed of the permanent magnet array (421) via the gear set (413). The gear set (413) includes at least two meshing transmission gears (414), one of which meshes with the drive gear disk (412), and the other is fixedly connected to the permanent magnet array (421). The diameter of the drive gear disk (412) is larger than the diameter of the transmission gear (414) meshing with the drive gear disk (412), forming a speed-increasing transmission structure to increase the rotational speed of the permanent magnet array (421).

3. An outdoor emergency generator for a mobile smart terminal according to claim 1, characterized in that: The permanent magnet array (421) is composed of multiple magnetic blocks. The electromagnetic induction mechanism (42) has an annular iron core (424) disposed on the outer shell (12). The winding coil (422) is wound on the annular iron core (424). The permanent magnet array (421) is located in the annular gap of the annular iron core (424). The multiple magnetic blocks are arranged around the central axis of the annular iron core (424).

4. An outdoor emergency generator for a mobile smart terminal according to claim 2, characterized in that: The gear set (413) has a driven gear disk (415) meshing with a drive gear disk (412) and an output gear disk (416) meshing with the driven gear disk (415). The permanent magnet array (421) is disposed on the output gear disk (416) and coaxially disposed with the output gear disk (416). The drive gear disk (412) has a third gear (4121), the output gear disk (416) has a fourth gear (4161), and the driven gear disk (415) has a coaxially disposed... The gear set (413) consists of a first gear (4151), a second gear (4152), and a third gear (4121) meshing with the first gear (4151). The second gear (4152) meshes with the fourth gear (4161). The diameter of the fourth gear (4161) is larger than that of the first gear (4151), and the diameter of the second gear (4152) is larger than that of the fourth gear (4161). The gear set (413) forms a two-stage speed-increasing structure to increase the rotational speed of the permanent magnet array (421).

5. An outdoor emergency generator for a mobile smart terminal according to claim 1, characterized in that: The power management module (3) further includes a sliding switch (33), which has a sliding block (331) disposed on the outside of the housing (12), a conductive spring (332) connected to the sliding block (331), and a charging terminal (333) and a discharging terminal (334) fixed inside the housing (12). The housing (12) is provided with a sliding groove (13) that cooperates with the sliding block (331) to slide. The sliding block (331) is driven by the user to move along the sliding groove (13) to drive the conductive spring (332) to connect the charging terminal (333) or the discharging terminal (334) to realize the switching control of the power supply.

6. An outdoor emergency generator for a mobile smart terminal according to claim 1, characterized in that: The manual drive mechanism (2) has an energy storage drive disk (21), which is equipped with a spring (22) and a disk shaft (23). A drive shaft (14) on the base plate (11) is rotatably mounted with a drive gear disk (412). One end of the disk shaft (23) protrudes from the outer shell (12) and is equipped with a rocker arm (24). The other end is coaxially fixed with the drive shaft (14). One end of the spring (22) is connected to the disk shaft (23), and the other end is fixed on the outer shell (12). Manually shaking the rocker arm (24) drives the drive shaft (14) via the disk shaft (23). The drive gear disk (412) rotates in the forward direction, and at the same time, the rotation of the clock spring (22) synchronous disc shaft (23) is tightened to store elastic potential energy. After the rocker arm (24) is released, the elastic potential energy stored in the clock spring (22) causes the disc shaft (23) to drive the drive shaft (14) in the reverse direction, causing the drive gear disk (412) to rotate in the reverse direction. Both the forward and reverse rotation of the drive gear disk (412) will cause the permanent magnet array (421) to rotate through the transmission shaft system (41). The rotational motion of the permanent magnet array (421) cuts the magnetic field generated by the winding coil (422), realizing the conversion of mechanical energy into electrical energy.

7. An outdoor emergency generator for a mobile smart terminal according to claim 6, characterized in that: One end of the rocker arm (24) is rotatably connected to the disc shaft (23) via a pin, and the other end of the rocker arm (24) is provided with a grip part (25) for easy hand holding. When the rocker arm (24) is stored, it rotates around the pin and folds to fit the surface of the outer shell (12). When working, the rocker arm (24) generates electricity by rotating around the disc shaft (23) via the pin.

8. An outdoor emergency generator for a mobile smart terminal according to claim 4, characterized in that: The output gear disk (416) has multiple mounting slots (4162) for embedding permanent magnets. The mounting slots (4162) are filled with epoxy resin to fix the permanent magnets. The multiple mounting slots (4162) are arranged around the rotation axis of the output gear disk (416). The base plate (11) is provided with an output shaft (15) for mounting the output gear disk (416). The output gear disk (416) is provided with a stepped collar (4163) that cooperates with the output shaft (15). The mounting slots (4162), the fourth gear (4161) and the stepped collar (4163) are arranged along the length of the output shaft (15). The shaft diameter of the stepped collar (4163) decreases from the fourth gear (4161) toward the direction away from the fourth gear (4161).

9. An outdoor emergency generator for a mobile smart terminal according to claim 3, characterized in that: The magnetic blocks are neodymium iron boron permanent magnets, and the polarities of adjacent magnetic blocks are arranged alternately. The rotation axis of the permanent magnet array (421) coincides with the central axis of the annular iron core (424), forming a coaxial alternating magnetic field power generation structure. The winding coil (422) includes at least two independent windings (425). Each independent winding (425) is symmetrically arranged along the rotation axis of the annular iron core (424). The output end of each winding is connected to the power management module (3) in parallel or series. When the permanent magnet array (421) rotates, the alternating magnetic field generated cuts each winding coil (422) perpendicularly, and the induced electromotive force of each winding coil (422) is superimposed.

10. An outdoor emergency generator for a mobile smart terminal according to claim 1, characterized in that: The power output port (32) is a USB-C interface, which allows users to charge bidirectionally. The housing (12) is equipped with a waterproof sealing ring (16) that matches the USB-C interface.

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