Multifunctional power bank

Abstract

The utility model provides a multifunctional power bank, which comprises a first shell and a second shell which are connected with each other, a battery pack is arranged in a cavity enclosed by the first shell and the second shell, the first shell is of a telescopic folding structure, and a lighting assembly is further arranged in the first shell. The first shell is made of a light-permeable material, and when the first shell is folded, the multifunctional power bank is in a basic form of the power bank; when the first shell is unfolded, the lighting assembly works, and light rays penetrate through the first shell to irradiate outwards. The multifunctional power bank integrates the functions of a power bank and an illuminating lamp, can be used as the power bank, can also be used as the illuminating lamp when needed, has multiple functions, can simplify tool configuration, improves the tool utilization rate, and saves the storage space and the purchase cost.

Description

Technical Field

[0001] The utility model relates to a charging and electricity storage device, and more specifically, to a multifunctional charging treasure. Background Art

[0002] A power bank is a portable charger that can store electrical energy and charge mobile communication devices and other digital devices, greatly facilitating people's work and life. With the continuous iteration and upgrading of technology, the storage capacity of power banks is also increasing. However, existing power banks have always been positioned as charging and storage devices with relatively single functions. In some scenarios, such as outdoor sports, power banks and lighting lamps are essential equipment. Since these equipment have single functions and only have their own basic use functions, the equipment types are numerous and diverse, increasing the burden. Therefore, whether the power bank can be expanded to improve its utilization rate has become a topic of discussion. The utility model patent with publication number CN220544723U discloses a power bank, which can more freely adjust the inclination angle between the shell and the desktop through the setting of a connecting mechanism and a bracket to adapt to various support requirements for mobile phones. It has good operability and adaptability, and has a simple structure and is easy to operate. However, the power bank in the utility model only adds its own placement adjustment function, but there is no breakthrough in the basic use function. Utility Model Content

[0003] The existing multi-functional power bank has a single function and few application scenarios. To overcome this defect, the utility model provides a multi-functional power bank that integrates more functions and has more diverse application scenarios.

[0004] The technical solution of the utility model is: a multifunctional power bank, comprising a first shell and a second shell connected to each other, a battery pack is arranged in a cavity enclosed by the first shell and the second shell, the first shell is a retractable and foldable structure, and a lighting component is also arranged in the first shell. The first shell is made of a light-transmitting material, and when folded and stowed, the multifunctional power bank presents the basic form of a power bank; when the first shell is unfolded, the lighting component works, and light is radiated outward through the first shell. The multifunctional power bank integrates the functions of a power bank and a lighting lamp, and can be used as a power bank, and can also be used as a lighting lamp when needed. It has multiple uses, can simplify tool equipment, improve tool utilization, and save storage space and procurement costs.

[0005] Preferably, the first shell includes a top plate and a silicone cover, the top of the silicone cover is connected to the top plate, and the bottom of the silicone cover is connected to the second shell. The silicone cover is a soft material, and through reasonable silicone cover thickness and top plate weight settings, the silicone cover can also have a certain toughness and rigidity and be sufficient to support the weight of the top plate, ensuring that the silicone cover can be fully unfolded. The top plate is located on the top of the silicone cover, so that the first shell has a relatively flat top. When the first shell is folded and retracted, the top plate can form a relatively regular outer contour with the second shell.

[0006] Preferably, the lighting assembly includes a light board and a driving board electrically connected to the light board, the light board is fixed to the bottom of the top board, and the driving board is electrically connected to the battery pack. The light board is a carrier of the light-emitting component, and when the first shell is unfolded, the light board moves to a higher position with the top board to form a larger lighting area. The driving board is a carrier of the circuit, and the driving board conducts electricity from the battery pack to the light board to make it work.

[0007] Preferably, the top plate is further connected with a top cover, which can increase the protection of the top plate and can also thicken the top of the first shell to increase the force-bearing surface, making it easier for the user's fingers to grasp and exert force.

[0008] Preferably, the connection between the first shell and the second shell is further provided with a battery pack pressure plate, and a pressure strip matching the outer contour of the battery pack pressure plate is provided on the top of the battery pack pressure plate, and the pressure strip is clamped on the second shell. The battery pack pressure plate further divides the internal space of the power bank, and the position of the battery pack can be further reinforced from the top of the battery pack. The pressure strip uses the second shell as an installation support and presses the battery pack pressure plate at the top edge of the battery pack pressure plate.

[0009] Preferably, the edge of the battery pack pressure plate is provided with a pressure strip and the second shell is connected by a snap-fit ​​structure composed of a snap-fit, the snap-fit ​​and the battery pack pressure plate are close to each other, and a snap-fit ​​avoidance hole is provided to avoid interference between the snap-fit ​​and the battery pack pressure plate.

[0010] Preferably, the second shell has a side surface and a bottom surface, and the side surface and the bottom surface are integrally formed. The structure of the second shell can better accommodate the built-in components of the power bank and can also provide better overall protection.

[0011] As a preferred embodiment, the bottom surface is provided with flippable support feet, which can be flipped out when necessary to support the power bank at a certain tilt angle, making it easier to locate the charging and discharging ports.

[0012] Preferably, a magnetic block is provided on the bottom surface, which can facilitate the stable placement of the power bank on an iron support such as a car hood.

[0013] Preferably, a protective rubber sleeve is provided on the side surface. The protective rubber sleeve can enhance the protection of the power bank's exterior and reduce damage caused by bumps and the like.

[0014] The beneficial effects of the utility model are:

[0015] Multiple functions. The utility model can be used as a power bank and can also be used as a lighting lamp when needed. It has multiple uses and is better adapted to multiple scenarios.

[0016] Simplified tool equipment. The utility model integrates the functions of a power bank and a lighting lamp. In a scenario where both charging and lighting functions are required, there is no need to equip both a power bank and a lighting lamp. This can simplify tool equipment, improve portability, and make outdoor sports more convenient.

[0017] Improve tool utilization rate. Since the utility model integrates the functions of a power bank and a lighting lamp, the utility model can be activated when any one of the functions of charging and lighting is needed, thereby improving the tool utilization rate.

[0018] Save storage space and purchase costs. The utility model has multiple uses, simplifies tool equipment, and can save storage space and purchase costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of the utility model;

[0020] Figure 2 It is an exploded view of a part of the utility model;

[0021] Figure 3 This is a schematic diagram of the matching structure of the pressure strip and the battery pack pressure plate in the utility model;

[0022] Figure 4 This is a schematic diagram of the matching structure of the pressure strip and the silicone cover in the utility model;

[0023] Figure 5 This is a schematic diagram of the folded state of the utility model;

[0024] Figure 6 It is a schematic diagram of the unfolded state of the utility model;

[0025] Figure 7 This is a schematic diagram of a bottom structure of the second shell in the utility model;

[0026] Figure 8 It is another schematic diagram of the bottom structure of the second shell in the utility model.

[0027] In the figure, 1-first shell, 101-top plate, 102-silicone cover, 103-top cover, 2-second shell, 201-side surface, 202-bottom surface, 203-support foot, 204-magnetic block, 205-protective rubber sleeve, 206-charging and discharging interface, 207-buckle, 3-battery pack, 4-lighting assembly, 401-light board, 402-drive board, 403-lighting switch, 5-battery pack pressure plate, 501-avoidance hole, 6-pressure strip, 601-elastic buckle ring. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the specific embodiments of the drawings.

[0029] Embodiment 1:

[0030] like Figures 1 to 6 As shown, a multifunctional power bank includes a first shell 1 and a second shell 2. The second shell 2 is cylindrical and has a side surface 201 and a bottom surface 202 composed of a rounded square plane. The side surface 201 is composed of a closed circumference of a rounded square column. The side surface 201 and the bottom surface 202 are integrally injection molded with ABS plastic. A charging and discharging interface 206 is provided on the side surface 201. The surface of the side surface 201 is also covered with a protective rubber sleeve 205 made of silicone. The bottom of the first shell 1 is connected to the upper port of the side surface 201. The first shell 1 is a retractable and foldable structure. After unfolding, a cavity can be formed. The second shell 2 also has a cavity. Therefore, the cavity enclosed by the first shell 1 and the second shell 2 is composed of the cavity of the first shell 1 and the cavity of the second shell 2. A lighting assembly 4 is provided in the first shell 1, and a battery pack 3 is provided in the second shell 2. The first shell 1 includes a top plate 101 and a silicone cover 102. The silicone cover 102 is in the shape of a cone when unfolded, and the top collapses and drops to the center position when contracted, and the conical surface on the silicone cover 102 is folded into a plurality of concentric circles around the center position. In order to ensure that the silicone cover 102 can be folded at a certain position when contracted, an annular fold is provided on the surface of the silicone cover 102. The top of the silicone cover 102 is fixed to the top plate 101 with adhesive, and the bottom of the silicone cover 102 is connected to the side surface 201 of the second shell 2. The bottom of the silicone cover 102 is provided with an outer flange. A top cover 103 is also provided on the top plate 101, and the circumference of the top cover 103 extends downward to form an annular wall. The annular wall forms an interference fit with the top plate 101, so that the top plate 101 and the top cover 103 are connected together. The top plate 101, the top cover 103, and the light board 401 are all transparent parts made of polycarbonate.

[0031] The connection part of the first shell 1 and the second shell 2 is provided with a press strip 6, which is also made of ABS plastic. The press strip 6 is snapped with the side surface 201 port of the second shell 2 through a snap-on structure. The snap-on structure is composed of six inwardly protruding snaps 207 arranged on the side surface 201 port and six elastic snap rings 601 arranged on the circumference of the press strip 6. The snaps 207 are integrally formed with the second shell 2, and the elastic snap rings 601 are integrally formed with the press strip 6. The snaps 207 have an inclined surface, and the elastic snap rings 601 have a bayonet that allows the snaps 207 to enter. The snaps 207 and the elastic snap rings 601 correspond to each other in position. The press strip 6 overlaps with the outer turning edge at the bottom of the silicone cover 102, and the press strip 6 is pressed on the outer turning edge of the silicone cover 102, and then snapped with the second shell 2. When the press strip 6 is connected to the second shell 2, the silicone cover 102 is pressed against the second shell 2, thereby realizing the connection between the first shell 1 and the second shell 2.

[0032] The connection between the first shell 1 and the second shell 2 is also provided with a battery pack pressure plate 5. After the battery pack pressure plate 5 is penetrated by screws, it is threadedly connected with the screw connection column integrally provided on the bottom surface 202 of the second shell 2. The pressure strip 6 matches the outer profile of the battery pack pressure plate 5. The edge of the battery pack pressure plate 5 is provided with a buckle avoidance hole 501 to avoid interference with the buckle 207 and the elastic buckle ring 601. The lighting assembly 4 includes a lamp board 401, a driving board 402 and a lighting switch 403. The driving board 402 is electrically connected to the lamp board 401. The lamp board 401 is provided with LED lamp beads arranged in an array. The lamp board 401 is fixed to the bottom of the top plate 101 by screws, and the LED lamp beads face downward. The driving board 402 is fixed on the second shell 2 and electrically connected to the battery pack 3. The driving board 402 is installed with a charge and discharge module and a switch module. The charge and discharge interface 206 is located on the charge and discharge module. The lighting switch 403 is located on the switch module and exposed on the outer surface of the side surface 201.

[0033] This multifunctional power bank has the functions of a power bank and a lighting lamp. When the first shell 1 is folded and retracted, the multifunctional power bank is roughly a flat box-shaped object, presenting the basic form of a power bank. Insert one end of the charging cable into the charging and discharging interface 206, and the other end into a mobile phone, iPad or other device to charge; if the lighting function is needed, pinch the side of the top cover 103, lift it up with force, and unfold the first shell 1. The toughness and rigidity of the silicone cover 102 itself are sufficient to support the weight of the top plate 101 and the top cover 103, so that the silicone cover 102 can remain in a fully unfolded state after letting go, press the lighting switch 403, the lamp beads on the light board 401 emit light, and the light shines outward through the top plate 101, the silicone cover 102 and the top cover 103.

[0034] Embodiment 2:

[0035] like Figures 1 to 7As shown, a multifunctional power bank includes a first shell 1 and a second shell 2. The second shell 2 is cylindrical and has a side surface 201 and a bottom surface 202 composed of a rounded square plane. The side surface 201 is composed of a closed circumference of a rounded square column. The side surface 201 and the bottom surface 202 are integrally injection molded with ABS plastic. A charging and discharging interface 206 is provided on the side surface 201. The surface of the side surface 201 is also covered with a protective rubber sleeve 205 made of silicone. The bottom of the first shell 1 is connected to the upper port of the side surface 201. The first shell 1 is a retractable folding structure, which can form a cavity after unfolding. The second shell 2 also has a cavity. Therefore, the cavity enclosed by the first shell 1 and the second shell 2 is composed of the cavity of the first shell 1 and the cavity of the second shell 2. Different from the first embodiment, the bottom surface 202 is provided with a reversible support foot 203, the support foot 203 is T-shaped, and the bottom surface 202 is also provided with a T-shaped groove adapted to the support foot 203, the narrower end of the support foot 203 is hinged in the T-shaped groove, and the support foot 203 is flipped and embedded in the T-shaped groove when not in use and forms a slight interference fit with the T-shaped groove. A magnetic block 204 is provided on the bottom surface 202. A lighting assembly 4 is provided in the first shell 1, and a battery pack 3 is provided in the second shell 2. The first shell 1 includes a top plate 101 and a silicone cover 102. The silicone cover 102 is in the shape of a cone when unfolded, and the top collapses and drops to the center position when retracted, and the conical surface on the silicone cover 102 is folded into a plurality of concentric circles around the center position. In order to ensure that the silicone cover 102 can be folded at a certain position when retracted, an annular fold is provided on the surface of the silicone cover 102. The top of the silicone cover 102 is fixed to the top plate 101 with adhesive, and the bottom of the silicone cover 102 is connected to the side surface 201 of the second shell 2. The bottom of the silicone cover 102 is provided with an outer flange. The top plate 101 is also provided with a top cover 103, and the circumference of the top cover 103 extends downward to form an annular wall. The annular wall and the top plate 101 form an interference fit, so that the top plate 101 and the top cover 103 are connected together. The top plate 101, the top cover 103, and the light board 401 are all transparent parts made of polycarbonate.

[0036] The connection part of the first shell 1 and the second shell 2 is provided with a press strip 6, which is also made of ABS plastic. The press strip 6 is snapped with the side surface 201 port of the second shell 2 through a snap-on structure. The snap-on structure is composed of six inwardly protruding snaps 207 arranged on the side surface 201 port and six elastic snap rings 601 arranged on the circumference of the press strip 6. The snaps 207 are integrally formed with the second shell 2, and the elastic snap rings 601 are integrally formed with the press strip 6. The snaps 207 have an inclined surface, and the elastic snap rings 601 have a bayonet that allows the snaps 207 to enter. The snaps 207 and the elastic snap rings 601 correspond to each other in position. The press strip 6 overlaps with the outer turning edge at the bottom of the silicone cover 102, and the press strip 6 is pressed on the outer turning edge of the silicone cover 102, and then snapped with the second shell 2. When the press strip 6 is connected to the second shell 2, the silicone cover 102 is pressed against the second shell 2, thereby realizing the connection between the first shell 1 and the second shell 2.

[0037] The connection between the first shell 1 and the second shell 2 is also provided with a battery pack pressure plate 5. After the battery pack pressure plate 5 is penetrated by screws, it is threadedly connected with the screw connection column integrally provided on the bottom surface 202 of the second shell 2. The pressure strip 6 matches the outer profile of the battery pack pressure plate 5. The edge of the battery pack pressure plate 5 is provided with a buckle avoidance hole 501 to avoid interference with the buckle 207 and the elastic buckle ring 601. The lighting assembly 4 includes a lamp board 401, a driving board 402 and a lighting switch 403. The driving board 402 is electrically connected to the lamp board 401. The lamp board 401 is provided with LED lamp beads arranged in an array. The lamp board 401 is fixed to the bottom of the top plate 101 by screws, and the LED lamp beads face downward. The driving board 402 is fixed on the second shell 2 and electrically connected to the battery pack 3. The driving board 402 is installed with a charge and discharge module and a switch module. The charge and discharge interface 206 is located on the charge and discharge module. The lighting switch 403 is located on the switch module and exposed on the outer surface of the side surface 201.

[0038] The multifunctional power bank has the functions of a power bank and a lighting lamp. When the first shell 1 is folded and retracted, the multifunctional power bank is roughly a flat box-shaped object, presenting the basic form of a power bank. One end of the charging cable is inserted into the charging and discharging interface 206, and the other end is inserted into a mobile phone, iPad or other device to charge; if a placement surface with sufficient height cannot be found during use, resulting in the charging and discharging interface 206 being oriented in an inconvenient direction to insert the charging cable, the supporting feet 203 can be turned out at this time to support the power bank at a certain tilt angle to facilitate the accurate location of the charging and discharging interface 206; if the lighting function is required, the side of the top cover 103 is pinched and lifted up with force to unfold the first shell 1, and the toughness and rigidity of the silicone cover 102 itself are sufficient to support the weight of the top plate 101 and the top cover 103, so that the silicone cover 102 can remain in a fully unfolded state after letting go, and the lighting switch 403 is pressed, and the lamp beads on the light board 401 emit light, and the light shines outward through the top plate 101, the silicone cover 102 and the top cover 103.

[0039] Embodiment 3:

[0040] like Figures 1 to 8As shown, a multifunctional power bank includes a first shell 1 and a second shell 2. The second shell 2 is cylindrical and has a side surface 201 and a bottom surface 202 composed of a rounded square plane. The side surface 201 is composed of a closed circumference of a rounded square column. The side surface 201 and the bottom surface 202 are integrally injection molded with ABS plastic. A charging and discharging interface 206 is provided on the side surface 201. The surface of the side surface 201 is also covered with a protective rubber sleeve 205 made of silicone. The bottom of the first shell 1 is connected to the upper port of the side surface 201. The first shell 1 is a retractable folding structure, which can form a cavity after unfolding. The second shell 2 also has a cavity. Therefore, the cavity enclosed by the first shell 1 and the second shell 2 is composed of the cavity of the first shell 1 and the cavity of the second shell 2. Different from the first embodiment, the bottom surface 202 is provided with a reversible support foot 203 and a pair of magnetic blocks 204. The support foot 203 is T-shaped. The bottom surface 202 is also provided with a T-shaped groove adapted to the support foot 203. The narrower end of the support foot 203 is hinged in the T-shaped groove. When the support foot 203 is not in use, it is flipped and embedded in the T-shaped groove and slightly interferes with the T-shaped groove. The magnetic block 204 is interference-embedded in the magnetic block mounting hole of the bottom surface 202, and the magnetic block 204 is flush with the bottom surface 202. The first shell 1 is provided with a lighting assembly 4, and the second shell 2 is provided with a battery pack 3. The first shell 1 includes a top plate 101 and a silicone cover 102. The silicone cover 102 is in a cone shape when unfolded, and the top collapses and drops to the center position when retracted, and the conical surface on the silicone cover 102 is folded into a plurality of concentric circles around the center position. In order to ensure that the silicone cover 102 can be folded at a certain position when retracted, an annular fold is provided on the surface of the silicone cover 102. The top of the silicone cover 102 is fixed to the top plate 101 with adhesive, and the bottom of the silicone cover 102 is connected to the side surface 201 of the second shell 2. The bottom of the silicone cover 102 is provided with an outer flange. The top plate 101 is also provided with a top cover 103, and the circumference of the top cover 103 extends downward to form an annular wall. The annular wall and the top plate 101 form an interference fit, so that the top plate 101 and the top cover 103 are connected together. The top plate 101, the top cover 103, and the light board 401 are all transparent parts made of polycarbonate.

[0041] The connection part of the first shell 1 and the second shell 2 is provided with a press strip 6, which is also made of ABS plastic. The press strip 6 is snapped with the side surface 201 port of the second shell 2 through a snap-on structure. The snap-on structure is composed of six inwardly protruding snaps 207 arranged on the side surface 201 port and six elastic snap rings 601 arranged on the circumference of the press strip 6. The snaps 207 are integrally formed with the second shell 2, and the elastic snap rings 601 are integrally formed with the press strip 6. The snaps 207 have an inclined surface, and the elastic snap rings 601 have a bayonet that allows the snaps 207 to enter. The snaps 207 and the elastic snap rings 601 correspond to each other in position. The press strip 6 overlaps with the outer turning edge at the bottom of the silicone cover 102, and the press strip 6 is pressed on the outer turning edge of the silicone cover 102, and then snapped with the second shell 2. When the press strip 6 is connected to the second shell 2, the silicone cover 102 is pressed against the second shell 2, thereby realizing the connection between the first shell 1 and the second shell 2.

[0042] The connection between the first shell 1 and the second shell 2 is also provided with a battery pack pressure plate 5. After the battery pack pressure plate 5 is penetrated by screws, it is threadedly connected with the screw connection column integrally provided on the bottom surface 202 of the second shell 2. The pressure strip 6 matches the outer profile of the battery pack pressure plate 5. The edge of the battery pack pressure plate 5 is provided with a buckle avoidance hole 501 to avoid interference with the buckle 207 and the elastic buckle ring 601. The lighting assembly 4 includes a lamp board 401, a driving board 402 and a lighting switch 403. The driving board 402 is electrically connected to the lamp board 401. The lamp board 401 is provided with LED lamp beads arranged in an array. The lamp board 401 is fixed to the bottom of the top plate 101 by screws, and the LED lamp beads face downward. The driving board 402 is fixed on the second shell 2 and electrically connected to the battery pack 3. The driving board 402 is installed with a charge and discharge module and a switch module. The charge and discharge interface 206 is located on the charge and discharge module. The lighting switch 403 is located on the switch module and exposed on the outer surface of the side surface 201.

[0043] The multifunctional power bank has the functions of a power bank and a lighting lamp. When the first shell 1 is folded and retracted, the multifunctional power bank is roughly a flat box-shaped object, presenting the basic form of a power bank. One end of the charging cable is inserted into the charging and discharging interface 206, and the other end is inserted into a mobile phone, iPad or other device to charge; if a placement surface with sufficient height cannot be found during use, resulting in the charging and discharging interface 206 being oriented in an inconvenient direction to insert the charging cable, the supporting feet 203 can be turned out at this time to support the power bank at a certain tilt angle to facilitate the accurate location of the charging and discharging interface 206; if the lighting function is required, the side of the top cover 103 is pinched and lifted up with force to unfold the first shell 1, and the toughness and rigidity of the silicone cover 102 itself are sufficient to support the weight of the top plate 101 and the top cover 103, so that the silicone cover 102 can remain in a fully unfolded state after letting go, and the lighting switch 403 is pressed, and the lamp beads on the light board 401 emit light, and the light shines outward through the top plate 101, the silicone cover 102 and the top cover 103. If you use it outdoors and cannot find a flat support surface, you can use a magnet to place the power bank stably on an iron support such as a car hood.

Claims

1. A multifunctional power bank, characterized in that: The invention comprises a first shell (1) and a second shell (2) which are connected to each other, wherein a battery pack (3) is arranged in a cavity enclosed by the first shell (1) and the second shell (2), the first shell (1) is a retractable and foldable structure, and a lighting assembly (4) is also arranged in the first shell (1).

2. The multifunctional power bank according to claim 1, characterized in that: The first housing (1) comprises a top plate (101) and a silicone cover (102); the top of the silicone cover (102) is connected to the top plate (101), and the bottom of the silicone cover (102) is connected to the second housing (2).

3. The multifunctional power bank according to claim 2, characterized in that: The lighting assembly comprises a light board (401) and a driving board (402) electrically connected to the light board (401); the light board (401) is fixed to the bottom of the top board (101); and the driving board (402) is electrically connected to the battery pack (3).

4. The multifunctional power bank according to claim 2, characterized in that: A top cover (103) is also connected to the top plate (101).

5. The multifunctional power bank according to claim 1, characterized in that: The connection portion between the first shell (1) and the second shell (2) is further provided with a battery pack pressure plate (5) and a pressure strip (6) matching the outer contour of the battery pack pressure plate (5), and the pressure strip (6) is clamped on the second shell (2).

6. The multifunctional power bank according to claim 5, characterized in that: A buckle avoidance hole (501) is provided on the edge of the battery pack pressure plate (5).

7. The multifunctional power bank according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The second shell (2) comprises a side surface (201) and a bottom surface (202), and the side surface (201) and the bottom surface (202) are integrally formed.

8. The multifunctional power bank according to claim 7, characterized in that: The bottom surface (202) is provided with a flippable supporting foot (203).

9. The multifunctional power bank according to claim 7, characterized in that: A magnetic block (204) is provided on the bottom surface (202).

10. The multifunctional power bank according to claim 7, characterized in that: A protective rubber sleeve (205) is provided on the side surrounding surface (201).

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