Multifunctional wireless fast charging power bank
Patent Information
- Application Number
- CN202521441853.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-07-09
AI Technical Summary
[0002]在移动电源领域,随着用户对便捷性和功能多样性的需求提升,传统移动电源已难以满足需求
[0008] The housing adopts a combination structure of upper and lower shells. The inner edge of the upper shell is provided with a limiting boss, and the bottom edge of the lower shell is provided with a first snap-fit part with a limiting groove. The upper shell is snapped into the limiting groove by the limiting boss. This design can realize the quick assembly and disassembly of the housing, and facilitate the installation and maintenance of internal modules. The bottom of the first protrusion of the limiting boss is provided with a first inclined surface, and the top is provided with a second inclined surface with a smaller inclination angle. This structure allows the first inclined surface to guide the limiting boss to slide smoothly into the limiting groove when the upper shell is pressed down. After assembly, the second inclined surface and the limiting groove form a more stable snap-fit structure, preventing the housing from accidentally separating and improving the reliability of the overall structure. In practice, the upper and lower shells are assembled by the snap-fit of the limiting boss and the limiting groove. During installation, the limiting boss of the upper shell is aligned with the limiting groove of the lower shell, and the upper shell is pressed down by the guiding action of the first inclined surface, so that the limiting boss is snapped into the limiting groove. At this time, the second inclined surface is in close contact with the inner wall of the limiting groove, forming a stable snap-fit state. During disassembly, the upper and lower shells can be separated by overcoming the snap-fit force of the second inclined surface with external force, thus meeting the practicality and convenience requirements of the shell structure.
Smart Images

Figure CN224669486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile power technology, and in particular discloses a multifunctional wireless fast charging mobile power supply. Background Technology
[0002] In the field of portable power banks, traditional power banks are no longer sufficient to meet the increasing demands of users for convenience and functional versatility. Although some wireless fast-charging power banks exist on the market, most have limited functions and lack practical features such as voice broadcasting and accurate status indication. Furthermore, their structural design suffers from problems such as inconvenient casing assembly, unstable internal module installation, and a lack of effective temperature monitoring during wireless charging, making it difficult to guarantee the safety and stability of the charging process. Therefore, there is an urgent need for a wireless fast-charging power bank with multiple functions and an optimized structural design. Utility Model Content
[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a multifunctional wireless fast charging mobile power bank.
[0004] To achieve the above objectives, the present invention provides a multifunctional wireless fast charging power bank, comprising a housing, a power module, a wireless charging module, a voice broadcast module, and a control module disposed within the housing; the power module, the wireless charging module, and the voice broadcast module are all electrically connected to the control module; the wireless charging module includes a wireless charging coil disposed on the housing and magnetic adsorption components arranged in a ring array around the wireless charging coil.
[0005] By incorporating a power module, a wireless charging module, and a voice broadcast module electrically connected to the control module within the housing, functions such as power supply, wireless charging, and voice prompts can be achieved. The wireless charging module's wireless charging coil, in conjunction with magnetic adsorption components arranged in a ring array along the side of the housing, enhances the stability of the charging device through magnetic attraction, ensuring the efficiency and reliability of wireless charging. In practice, the housing provides protection and a mounting base for the internal components, the power module stores and supplies energy, the control module coordinates the operation of each module, the wireless charging coil charges the device through electromagnetic induction, the magnetic adsorption components secure the device to be charged using magnetic force, and the voice broadcast module provides voice prompts in scenarios such as changes in charging status. All modules work together to meet users' needs for multifunctional and convenient charging of the power bank.
[0006] The housing includes an upper shell and a lower shell mounted on the upper shell. The inner edge of the upper shell is provided with multiple limiting protrusions. The lower shell includes a bottom shell and a first snap-fit part vertically disposed on the edge of the bottom shell. The first snap-fit part is provided with multiple limiting grooves. The upper shell is snapped into the limiting grooves of the lower shell via the limiting protrusions.
[0007] The limiting boss includes a first protrusion, the bottom of the first protrusion is provided with a first inclined surface, and the top is provided with a second inclined surface, the inclination angle of the second inclined surface is smaller than the inclination angle of the first inclined surface.
[0008] The housing adopts a combination structure of upper and lower shells. The inner edge of the upper shell is provided with a limiting boss, and the bottom edge of the lower shell is provided with a first snap-fit part with a limiting groove. The upper shell is snapped into the limiting groove by the limiting boss. This design can realize the quick assembly and disassembly of the housing, and facilitate the installation and maintenance of internal modules. The bottom of the first protrusion of the limiting boss is provided with a first inclined surface, and the top is provided with a second inclined surface with a smaller inclination angle. This structure allows the first inclined surface to guide the limiting boss to slide smoothly into the limiting groove when the upper shell is pressed down. After assembly, the second inclined surface and the limiting groove form a more stable snap-fit structure, preventing the housing from accidentally separating and improving the reliability of the overall structure. In practice, the upper and lower shells are assembled by the snap-fit of the limiting boss and the limiting groove. During installation, the limiting boss of the upper shell is aligned with the limiting groove of the lower shell, and the upper shell is pressed down by the guiding action of the first inclined surface, so that the limiting boss is snapped into the limiting groove. At this time, the second inclined surface is in close contact with the inner wall of the limiting groove, forming a stable snap-fit state. During disassembly, the upper and lower shells can be separated by overcoming the snap-fit force of the second inclined surface with external force, thus meeting the practicality and convenience requirements of the shell structure.
[0009] The inner side of the upper shell forms a mounting part, and the mounting part has a mounting chamber for accommodating the voice broadcast module. The upper shell has a broadcast hole on its side, which is connected to the mounting part.
[0010] The inner side of the upper shell is surrounded by a mounting section and a mounting chamber for accommodating the voice broadcast module. The broadcast hole on the side is connected to the mounting section. This design provides a dedicated and reasonable installation space for the voice broadcast module, which can effectively protect the module from external impact damage and enable efficient sound transmission through the broadcast hole, ensuring clear voice prompts. In practice, when assembling the power bank, the voice broadcast module is precisely placed in the mounting chamber of the upper shell. After completing the circuit connection between the module and other components, it is assembled with the lower shell to form a complete shell. During use, the voice signal generated by the voice broadcast module is transmitted through the mounting chamber to the broadcast hole and then propagated to the outside through the broadcast hole, thereby achieving a clear and effective voice prompt function.
[0011] The control module includes a circuit board and circuit elements mounted on the circuit board. The circuit board has multiple sets of positioning holes, and the upper shell has positioning posts and positioning protrusions mounted on the positioning posts. The positioning protrusions are used to mount the components onto the positioning holes.
[0012] The control module adopts a combination of circuit boards and circuit components. Multiple sets of positioning holes on the circuit board cooperate with the positioning posts and positioning protrusions inside the upper shell. This design can accurately position the circuit board, ensure the accurate installation position of the circuit components, avoid circuit connection problems caused by installation deviations, and enhance the stability of the control module installation, reducing the risk of failure caused by circuit board shaking during the use of the power bank. In practice, when assembling the power bank, align the positioning holes on the circuit board with the positioning protrusions on the positioning posts of the upper shell, press down the circuit board so that the positioning protrusions are embedded in the positioning holes, and achieve precise installation and fixation of the circuit board in the upper shell. Then, connect the circuit board to the power module, wireless charging module, voice broadcast module, etc., thereby ensuring the stable operation of the control module and effectively coordinating the operation of each module.
[0013] The inner side of the upper shell is provided with multiple sets of guide ribs, which are used to abut against multiple sides of the power module.
[0014] Multiple sets of guide ribs are provided on the inner side of the upper shell, which can abut against multiple sides of the power module. This design can play a precise guiding role when installing the power module, which can facilitate quick positioning, reduce installation errors, and effectively restrict the movement of the power module in the shell, enhance the stability of the power module installation, and prevent it from affecting performance or causing internal circuitry to loosen due to shaking during use. In practice, when assembling the power bank, the power module is placed along the guide path formed by the guide ribs. The guide ribs fit tightly against the side of the power module, guiding it to fall accurately into the predetermined position. After the power module is installed in place, the guide ribs limit and fix it from the side, working together with other fixing structures to ensure that the power module is stably installed in the shell, providing a guarantee for the normal operation of the power bank.
[0015] The upper shell has a first through hole and a second through hole on the side of the first through hole. The external suspension can pass through the first through hole and the second through hole in sequence to fix one end of it to the upper shell.
[0016] The upper shell features a first and second through hole on its side, allowing an external hanging component to pass through them sequentially and securely fix one end to the upper shell. This design provides the power bank with a hanging function, enabling users to hang it on backpacks, keychains, or other locations for easy carrying, freeing up their hands and enhancing portability and flexibility. In practice, when using the hanging function, one end of the hanging component (such as a lanyard or hook) is passed through the first and second through holes sequentially, and then secured by knotting or fastening. This allows the power bank to be hung in the desired location, making it convenient to carry for outdoor activities or daily outings, meeting diverse usage scenarios.
[0017] The power bank also includes an LED indicator group mounted on the housing. The LED indicator group is electrically connected to the control module. The LED indicator group includes a power indicator and a charging status indicator. The power indicator is used to display the remaining power of the power bank, and the charging status indicator is used to display the charging status.
[0018] A sealing strip is provided at the connection between the upper and lower shells to prevent dust and moisture from entering the interior of the shell. This sealing strip, by tightly filling the gaps, forms an effective dust and water barrier, greatly reducing the risk of dust, moisture, and other impurities entering the shell. This protects precision components such as the power module and control module from external environmental damage, thereby extending the lifespan of the power bank and improving its reliability and stability in complex operating environments.
[0019] The wireless charging module also includes a temperature sensor, which is electrically connected to the control module. The temperature sensor is located near the wireless charging coil and is used to monitor the temperature in real time during the wireless charging process. When the temperature exceeds the set value, the control module automatically reduces the wireless charging power or stops charging.
[0020] The temperature sensor added to the wireless charging module is electrically connected to the control module and positioned near the wireless charging coil, enabling real-time and accurate monitoring of temperature changes during the wireless charging process. This design significantly improves the safety of wireless charging, preventing problems such as fires and component damage caused by coil overheating. When the temperature sensor detects that the temperature exceeds the set value, the control module responds quickly, automatically reducing the wireless charging power or stopping charging altogether, effectively controlling the temperature and preventing potential hazards.
[0021] The beneficial effects of this utility model are as follows: This utility model achieves multi-functional integration and safety protection through modular design and structural innovation. The power module, wireless charging module, voice broadcast module, and control module are electrically connected. Combined with the shell structure design, they form a multi-functional system that integrates power supply, wireless charging, and voice prompts. The wireless charging coil is equipped with magnetic adsorption components distributed in a ring array. The magnetic adsorption enhances the stability of the charging device to ensure charging efficiency. The temperature sensor monitors the wireless charging temperature in real time and links with the control module to adjust the power or stop charging to prevent overheating risks. The shell adopts an upper and lower shell snap-fit structure. The double-inclined surface design of the limiting boss takes into account both ease of assembly and connection stability. The sealing strip fills the gaps at the connection to achieve dust and water protection and protect the internal precision components. The mounting part, guide ribs, and positioning posts of the upper shell provide precise installation positioning and protection for the circuit boards of the voice broadcast module, power module, and control module, respectively. The double through-hole design on the side gives the device a hanging function. The LED indicator group displays the power and charging status in real time. The coordinated action of all structures achieves multiple beneficial effects such as functional integration, safety protection, convenient installation, and flexible portability. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is an exploded structural diagram of the entire utility model;
[0024] Figure 3 This is a schematic diagram of the upper shell and wireless charging module of this utility model;
[0025] Figure 4 For this Figure 3 A magnified structural diagram of part A in the middle;
[0026] Figure 5 This is a cross-sectional view of the upper shell of this utility model;
[0027] Figure 6 For this Figure 5 A magnified structural diagram of part B in the middle section;
[0028] Figure 7 This is a schematic diagram of the lower shell of this utility model.
[0029] The reference numerals in the figures include:
[0030] 1. Housing; 2. Power module; 3. Wireless charging module; 4. Voice broadcast module; 5. Control module; 6. Wireless charging coil; 7. Magnetic adsorption component; 8. Upper shell; 9. Lower shell; 11. Limiting boss; 12. Bottom shell; 13. First snap-fit part; 14. Limiting groove; 15. First protrusion; 16. First inclined surface; 17. Second inclined surface; 18. Mounting part; 19. Mounting chamber; 21. Broadcast hole; 22. Circuit board; 23. Circuit component; 24. Positioning hole; 25. Positioning post; 26. Positioning protrusion; 27. Guide rib; 28. First through hole; 29. Second through hole; 31. Power indicator light; 33. Sealing strip; 34. Temperature sensor. Detailed Implementation
[0031] 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.
[0032] Please see Figures 1 to 7As shown, the multifunctional wireless fast charging power bank of this utility model includes a housing 1, a power module 2, a wireless charging module 3, a voice broadcast module 4 and a control module 5 disposed inside the housing 1; the power module 2, the wireless charging module 3 and the voice broadcast module 4 are all electrically connected to the control module 5, and the wireless charging module 3 includes a wireless charging coil 6 disposed on the housing 1 and magnetic adsorption elements 7 arranged in a ring array around the wireless charging coil 6.
[0033] By incorporating a power module 2, a wireless charging module 3, and a voice broadcast module 4, all electrically connected to the control module 5, within the housing 1, functions such as power supply, wireless charging, and voice prompts can be achieved. The wireless charging coil 6 of the wireless charging module 3, in conjunction with magnetic adsorption components 7 arranged in a ring array along the side of the housing 1, enhances the stability of the charging device placement through magnetic adsorption, ensuring the efficiency and reliability of wireless charging. In practice, the housing 1 provides protection and a mounting base for the internal components, the power module 2 is responsible for energy storage and power supply, the control module 5 coordinates the operation of each module, the wireless charging coil 6 charges the device through electromagnetic induction, the magnetic adsorption components 7 use magnetic force to fix the device being charged, and the voice broadcast module 4 provides voice reminders in scenarios such as changes in charging status. All modules work together to meet users' needs for multifunctional and convenient charging of the power bank.
[0034] The housing 1 includes an upper shell 8 and a lower shell 9 mounted on the upper shell 8. The inner edge of the upper shell 8 is provided with a plurality of limiting protrusions 11. The lower shell 9 includes a bottom shell 12 and a first snap-fit part 13 vertically disposed on the edge of the bottom shell 12. The first snap-fit part 13 is provided with a plurality of limiting grooves 14. The upper shell 8 is snapped into the limiting grooves 14 of the lower shell 9 via the limiting protrusions 11.
[0035] The limiting boss 11 includes a first protrusion 15, the bottom of the first protrusion 15 is provided with a first inclined surface 16, and the top is provided with a second inclined surface 17. The inclination angle of the second inclined surface 17 is smaller than the inclination angle of the first inclined surface 16.
[0036] The housing 1 adopts a combination structure of upper shell 8 and lower shell 9. The inner edge of the upper shell 8 is provided with a limiting boss 11. The bottom shell 12 of the lower shell 9 is provided with a first snap-fit part 13 with a limiting groove 14 on its edge. The upper shell 8 is snapped into the limiting groove 14 by the limiting boss 11. This design can realize the quick assembly and disassembly of the housing 1, and facilitate the installation and maintenance of internal modules. The first protrusion 15 of the limiting boss 11 is provided with a first inclined surface 16 at the bottom and a second inclined surface 17 with a smaller inclination angle at the top. This structure allows the first inclined surface 16 to guide the limiting boss 11 to slide smoothly into the limiting groove 14 when the upper shell 8 is pressed down. After assembly, the second inclined surface 17 and the limiting groove 14 form a more stable snap-fit structure, preventing the housing 1 from being accidentally separated and improving the reliability of the overall structure. In practice, the upper shell 8 and the lower shell 9 are assembled by the snap-fit of the limiting boss 11 and the limiting groove 14. During installation, the limiting boss 11 of the upper shell 8 is aligned with the limiting groove 14 of the lower shell 9. The upper shell 8 is pressed down by the guiding action of the first inclined surface 16, so that the limiting boss 11 is snapped into the limiting groove 14. At this time, the second inclined surface 17 is in close contact with the inner wall of the limiting groove 14, forming a stable snap-fit state. During disassembly, the upper and lower shells 9 can be separated by overcoming the snap-fit force of the second inclined surface 17 with external force, thus meeting the practicality and convenience requirements of the shell 1 structure.
[0037] An installation part 18 is formed by surrounding the inner side of the upper shell 8. The installation part 18 is provided with an installation chamber 19 for accommodating the voice broadcast module 4. A broadcast hole 21 is provided on the side of the upper shell 8, and the broadcast hole 21 is connected to the installation part 18.
[0038] The inner side of the upper shell 8 is surrounded by a mounting part 18 and a mounting chamber 19 for accommodating the voice broadcast module 4. The broadcast hole 21 on the side is connected to the mounting part 18. This design provides a dedicated and reasonable installation space for the voice broadcast module 4, which can effectively protect the module from external collision damage and enable efficient sound transmission through the broadcast hole 21 to ensure clear voice prompts. In specific implementation, when assembling the power bank, the voice broadcast module 4 is precisely placed in the mounting chamber 19 of the upper shell 8. After completing the circuit connection between the module and other components, it is assembled with the lower shell 9 to form a complete shell 1. During use, the voice signal generated by the voice broadcast module 4 is transmitted through the mounting chamber 19 to the broadcast hole 21 and then propagated to the outside through the broadcast hole 21, thereby achieving a clear and effective voice prompt function.
[0039] The control module 5 includes a circuit board 22 and circuit elements 23 disposed on the circuit board 22. The circuit board 22 is provided with multiple sets of positioning holes 24, and the upper shell 8 is provided with positioning posts 25 and positioning protrusions 26 disposed on the positioning posts 25. The positioning protrusions 26 are used to be installed on the positioning holes 24.
[0040] The control module 5 adopts a combination of circuit board 22 and circuit components 23. Multiple sets of positioning holes 24 on the circuit board 22 cooperate with the positioning posts 25 and their positioning protrusions 26 inside the upper shell 8. This design can accurately position the circuit board 22, ensure the accurate installation position of the circuit components 23, avoid circuit connection problems caused by installation deviations, and enhance the stability of the control module 5 installation, reducing the risk of failure caused by the shaking of the circuit board 22 during the use of the power bank. In specific implementation, when assembling the power bank, the positioning holes 24 on the circuit board 22 are aligned with the positioning protrusions 26 on the positioning posts 25 of the upper shell 8, and the circuit board 22 is pressed down so that the positioning protrusions 26 are embedded in the positioning holes 24, realizing the precise installation and fixation of the circuit board 22 in the upper shell 8. Then, the circuit board 22 is connected to the power module 2, wireless charging module 3, voice broadcast module 4, etc., thereby ensuring the stable operation of the control module 5 and effectively coordinating the operation of each module.
[0041] The inner side of the upper shell 8 is provided with multiple sets of guide ribs 27, which are used to abut against multiple sides of the power module 2.
[0042] Multiple sets of guide ribs 27 are provided on the inner side of the upper shell 8, which can abut against multiple sides of the power module 2. This design can play a precise guiding role when installing the power module 2, which can facilitate quick positioning, reduce installation errors, and effectively restrict the movement of the power module 2 in the shell 1, enhance the stability of the power module 2 installation, and prevent it from affecting performance or causing internal circuitry to loosen due to shaking during use. In specific implementation, when assembling the power bank, the power module 2 is placed along the guide path formed by the guide ribs 27. The guide ribs 27 fit tightly against the side of the power module 2, guiding it to fall accurately into the predetermined position. After the power module 2 is installed in place, the guide ribs 27 limit and fix it from the side, working together with other fixing structures to ensure that the power module 2 is stably installed in the shell 1, providing a guarantee for the normal operation of the power bank.
[0043] The upper shell 8 has a first through hole 28 and a second through hole 29 on the side of the first through hole 28. The external hanging component can pass through the first through hole 28 and the second through hole 29 in sequence and fix one end of it to the upper shell 8.
[0044] The upper shell 8 has a first through hole 28 and a second through hole 29 on its side, which are designed to allow an external hanging component to pass through the two holes in sequence and be securely fixed to the upper shell 8 at one end. This design gives the power bank a hanging function, allowing users to hang it on backpacks, keychains, or other locations for easy carrying, freeing up their hands and improving portability and flexibility. In practice, when using the hanging function, one end of the hanging component (such as a lanyard or hook) is passed through the first through hole 28 and the second through hole 29 in sequence, and the hanging component is fixed by knotting or fastening, so that the power bank can be hung at the user's desired location. Whether for outdoor activities or daily travel, the power bank can be conveniently carried to meet the needs of diverse usage scenarios.
[0045] The power bank also includes an LED indicator group disposed on the housing 1. The LED indicator group is electrically connected to the control module 5. The LED indicator group includes a power indicator 31 and a charging status indicator 32. The power indicator 31 is used to display the remaining power of the power bank, and the charging status indicator 32 is used to display the charging status.
[0046] A sealing strip 33 is provided at the connection between the upper shell 8 and the lower shell 9 to prevent dust and moisture from entering the interior of the shell 1. The sealing strip 33 at the connection between the upper shell 8 and the lower shell 9 forms an effective dust and water barrier by tightly filling the gaps, greatly reducing the risk of dust, moisture and other impurities entering the interior of the shell 1, protecting the power module 2, control module 5 and other precision components from external environmental damage, thereby extending the service life of the power bank and improving its reliability and stability in complex usage environments.
[0047] The wireless charging module 3 also includes a temperature sensor 34, which is electrically connected to the control module 5. The temperature sensor 34 is located near the wireless charging coil 6 and is used to monitor the temperature in real time during the wireless charging process. When the temperature exceeds the set value, the control module 5 automatically reduces the wireless charging power or stops charging.
[0048] The temperature sensor 34 added to the wireless charging module 3 is electrically connected to the control module 5 and is located near the wireless charging coil 6, enabling real-time and accurate monitoring of temperature changes during the wireless charging process. This design greatly improves the safety of wireless charging, avoiding problems such as fires and component damage caused by coil overheating. When the temperature sensor 34 detects that the temperature exceeds the set value, the control module 5 will respond quickly, automatically reducing the wireless charging power or stopping charging directly, effectively controlling the temperature and preventing danger.
[0049] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A multi-functional wireless fast charging power bank, characterized in that: The device includes a housing (1), a power module (2), a wireless charging module (3), a voice broadcast module (4), and a control module (5) disposed within the housing (1); the power module (2), the wireless charging module (3), and the voice broadcast module (4) are all electrically connected to the control module (5); the wireless charging module (3) includes a wireless charging coil (6) disposed on the housing (1) and magnetic adsorption components (7) arranged in a ring array around the wireless charging coil (6); The control module (5) includes a circuit board (22) and circuit elements (23) disposed on the circuit board (22); the circuit board (22) is provided with multiple sets of positioning holes (24), and the upper shell (8) is provided with positioning posts (25) and positioning protrusions (26) disposed on the positioning posts (25). The positioning protrusions (26) are used to be installed on the positioning holes (24); The wireless charging module (3) also includes a temperature sensor (34), which is electrically connected to the control module (5). The temperature sensor (34) is located on the side of the wireless charging coil (6) and is used to monitor the temperature during the wireless charging process in real time. When the temperature exceeds the set value, the control module (5) automatically reduces the wireless charging power or stops charging.
2. The multifunctional wireless fast charging power bank according to claim 1, characterized in that: The housing (1) includes an upper shell (8) and a lower shell (9) mounted on the upper shell (8). The inner edge of the upper shell (8) is provided with multiple limiting bosses (11). The lower shell (9) includes a bottom shell (12) and a first snap-fit part (13) vertically arranged on the edge of the bottom shell (12). The first snap-fit part (13) is provided with multiple limiting grooves (14). The upper shell (8) is snapped into the limiting grooves (14) of the lower shell (9) via the limiting bosses (11).
3. The multifunctional wireless fast charging power bank according to claim 2, characterized in that: The limiting boss (11) includes a first protrusion (15), the bottom of the first protrusion (15) is provided with a first inclined surface (16), and the top is provided with a second inclined surface (17). The inclination angle of the second inclined surface (17) is smaller than the inclination angle of the first inclined surface (16).
4. The multifunctional wireless fast charging power bank according to claim 2, characterized in that: An installation part (18) is formed by surrounding the inner side of the upper shell (8). The installation part (18) is provided with an installation chamber (19) for accommodating the voice broadcast module (4). The upper shell (8) is provided with a broadcast hole (21) on the side, and the broadcast hole (21) is connected to the installation part (18).
5. The multifunctional wireless fast charging power bank according to claim 2, characterized in that: The inner side of the upper shell (8) is provided with multiple sets of guide ribs (27), which are used to abut against multiple sides of the power module (2).
6. The multifunctional wireless fast charging power bank according to claim 2, characterized in that: The upper shell (8) has a first through hole (28) and a second through hole (29) on the side of the first through hole (28). The external hanging member can pass through the first through hole (28) and the second through hole (29) in sequence to fix one end of it to the upper shell (8).
7. The multifunctional wireless fast charging power bank according to claim 1, characterized in that: The power bank also includes an LED indicator group set on the housing (1). The LED indicator group is electrically connected to the control module (5). The LED indicator group includes a power indicator (31) and a charging status indicator (32). The power indicator (31) is used to display the remaining power of the power bank, and the charging status indicator (32) is used to display the charging status.
8. The multifunctional wireless fast charging power bank according to claim 2, characterized in that: A sealing strip (33) is provided at the connection between the upper shell (8) and the lower shell (9) to prevent dust and moisture from entering the interior of the shell (1).