A mobile power supply

Abstract

The utility model discloses a kind of mobile power supply, it is related to charging device technical field, the mobile power supply includes shell, battery component, charging wire and fixed assembly. Shell is formed with containing cavity, shell has the outlet port of containing cavity and outside communication;The one end of charging wire is fixed end, the other end is the movable end with charging connector;Fixed assembly is located in shell, fixed assembly has the first wire hole and second wire hole of all containing cavity and outside communication, second wire hole is located between the first wire hole and outlet port, fixed end is fixedly connected with fixed assembly, movable end is stretched outside through the first wire hole, and it can be movably stretched into containing cavity through second wire hole and can be movably stretched outside through outlet port. The charging wire of mobile power supply provided by the utility model can be used as hanging rope, charging wire and mobile power supply are integrated, simple structure, the length of charging wire can be adjusted, easy to store and carry, and not easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of charging device technology, and in particular to a portable power source whose charging cable can also function as a lanyard. Background Technology

[0002] Portable power banks are widely used in people's daily lives due to their portability, efficiency, and practicality. However, some existing power banks have charging cables located outside the casing, with a fixed length. This easily leads to the charging cable twisting, bending, tangling, and even breakage, and also hinders the neat and orderly storage of the power bank. Furthermore, the inclusion of lanyards on the casing for easy carrying or hanging complicates the power bank's structure. Utility Model Content

[0003] This invention provides a portable power bank whose charging cable can also function as a lanyard. The charging cable is easy to store and not easily damaged, and it also simplifies the structure of the portable power bank.

[0004] This utility model provides a portable power bank, which includes a housing, a battery assembly, a charging cable, and a fixing component. The housing forms a receiving cavity, and the housing includes a first wall with a cable outlet communicating with the receiving cavity and the outside. The battery assembly is disposed in the receiving cavity. The charging cable has a fixed end at one end and a movable end with a charging connector at the other end. The fixing component is disposed in the housing and has a first cable routing hole and a second cable routing hole communicating with both the receiving cavity and the outside. The second cable routing hole is located between the first cable routing hole and the cable outlet. The fixed end is disposed in the receiving cavity and electrically connected to the battery assembly. The fixed end is fixedly connected to the fixing component. The movable end extends out to the outside through the first cable routing hole and can be movably inserted into the receiving cavity through the second cable routing hole and can be movably extended out to the outside through the cable outlet. The fixing component includes a guide surface located in the receiving cavity and facing the first wall. One end of the guide surface is disposed close to the second cable routing hole, and the other end extends in a direction inclined towards the cable outlet relative to the extension direction of the second cable routing hole.

[0005] Furthermore, when projected along the extension direction of the second wiring hole, the orthographic projection of the guide surface and the orthographic projection of the second wiring hole have an overlapping portion.

[0006] Furthermore, the fixing component also includes a limiting surface, which is perpendicular to the extension direction of the second wiring hole and is disposed opposite to the second wiring hole. The limiting surface and the end of the guide surface near the second wiring hole are connected by a first convex arc-shaped surface.

[0007] Furthermore, the wall of the second wiring hole on the side near the outlet is connected to the outer surface of the fixing assembly facing away from the receiving cavity via a second convex arc surface.

[0008] Furthermore, the fixing component includes: a first fixing member having a first wiring hole and a second wiring hole; a second fixing member disposed on the side of the first fixing member facing the receiving cavity, the second fixing member including the guide surface; wherein the first fixing member and / or the second fixing member are fixedly connected to the housing, and the first fixing member and the second fixing member are engaged.

[0009] Furthermore, the first fixing member includes a first main body portion and a first connecting portion connected to the first main body portion. The first main body portion is formed with a first wiring hole and a second wiring hole. The second fixing member includes a second connecting portion and a guide portion connected to the second connecting portion. The guide portion includes a guide surface. One of the first connecting portion and the second connecting portion is formed with a first buckle, and the other is formed with a first slot that engages with the first buckle.

[0010] Furthermore, the first connecting portion and the second connecting portion are fixedly connected to the outer casing by fasteners; and / or one of the first connecting portion and the outer casing has a second snap-fit, and the other has a second slot that engages with the second snap-fit. The first connecting portion has at least one first connecting hole, the second connecting portion has at least one second connecting hole, the first connecting hole and the second connecting hole coincide, and the outer casing has at least one third connecting hole, the third connecting hole coincides with the first connecting hole and the second connecting hole.

[0011] Furthermore, a locking cavity is formed between the first main body and the second connecting part, the locking cavity is connected to the first wiring hole, the cross-sectional area of ​​the locking cavity is larger than the cross-sectional area of ​​the first wiring hole, the cross-section is a plane perpendicular to the extension direction of the first wiring hole, the fixing end includes a locking head, and the fixing end is locked and fixed to the locking cavity by the locking head.

[0012] Furthermore, the first main body portion has a first recessed structure, and the second connecting portion has a second recessed structure. The first recessed structure and the second recessed structure are arranged opposite to each other to form the engagement cavity. The second connecting portion has an engagement opening at at least one end along a first direction that intersects the extension direction of the first wiring hole. The engagement opening is used for the engagement head to extend into the second recessed structure.

[0013] Furthermore, the outer casing also includes a second wall adjacent to the first wall, the first wall and the second wall are connected by an arc-shaped wall, and the fixing component is disposed on the arc-shaped wall.

[0014] This utility model provides a portable power bank, which includes a housing, a battery assembly, a charging cable, and a fixing assembly. The fixed end of the charging cable extends into the housing through a first cable routing hole and is electrically connected to the battery assembly. The fixed end is also fixedly connected to the fixing assembly. The movable end of the charging cable extends movably into a receiving cavity through a second cable routing hole and extends movably outward through a cable outlet. A guide surface guides the movable end toward the cable outlet. The fixed end is configured to remain fixed relative to the housing, while the movable end movably passes through the housing. When the movable end moves forward, the charging cable extends outward relative to the housing, and when the movable end moves backward, the charging cable retracts. This creates a loop structure between the first and second cable routing holes, which serves as a lanyard. Therefore, the portable power bank provided by this utility model uses a fixing component to secure the fixed end, and the charging cable can be pulled out during use and retracted to form a loop lanyard when not in use through the telescopic movement of the movable end. This solves the problem of inconvenient storage of existing portable power bank cables. Moreover, by using the charging cable as a lanyard, the need for a separate lanyard is eliminated, simplifying the structure of the portable power bank. Furthermore, the structure of the guide surface optimizes the movement path of the charging cable, making the operation of pulling out and retracting the charging cable smoother, reducing the risk of tangling, and thus reducing the probability of damage to the charging cable. Attached Figure Description

[0015] Figure 1 A cross-sectional structural schematic diagram of a mobile power supply provided in some embodiments of this application; Figure 2 A schematic diagram of a power bank with the charging cable hidden, provided in some embodiments of this application; Figure 3 A schematic diagram of the structure of the fixing component of a mobile power supply provided in some embodiments of this application from one perspective; Figure 4 A schematic diagram of the fixing assembly of a mobile power supply provided in some embodiments of this application from another perspective; Figure 5 This is a schematic diagram of the structure of a mobile power supply provided in some embodiments of this application; Figure 6 A schematic diagram of the structure of a charging cable for a mobile power supply provided in some embodiments of this application; Figure 7 A schematic diagram of the structure of the first fixing component of the mobile power supply provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of the second fixing component of the mobile power supply provided in some embodiments of this application; Figure 9 A schematic diagram of the structure of a portion of the casing of a power bank provided in some embodiments of this application; Figure 10 This is a schematic diagram of another part of the housing of a power bank provided in some embodiments of this application.

[0016] Explanation of reference numerals in the attached figures 10. Outer shell; 11. Receiving cavity; 12. First wall; 13. Second wall; 14. Cable outlet; 15. Third connection hole; 16. Arc-shaped wall; 20. Battery assembly; 30. Charging cable; 31. Fixed end; 32. Movable end; 33. Charging connector; 40. Fixing component; 41. First fixing member; 42. Second fixing member; 43. Engaging cavity; 50. First buckle; 51. First slot; 60. Second buckle; 61. Second slot; 70. First recessed structure; 71. Second recessed structure; 80. Engaging opening; 310. Engaging head; 410. First main body; 411. First connecting part; 412. Second convex arc surface; 420. Limiting surface; 421. First convex arc surface; 422. Guide part; 423. Second connecting part; 430. Second stepped surface; 431. Limiting inner wall; 3101. First stepped surface; 4101. First wiring hole; 4102. Second wiring hole; 4110. First connecting hole; 4220. Guide surface; 4230. Second connecting hole. Detailed Implementation

[0017] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] In the description of the embodiments of this application, the technical terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated, or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0021] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0022] With the widespread use of mobile devices and the increasing frequency of people's use of mobile phones and other electronic devices, power banks have become an indispensable part of daily life. Existing power banks need further improvement in areas such as charging cable storage, charging cable protection, and structural simplification.

[0023] To address this, this application provides a portable power bank comprising a housing, a battery assembly, a charging cable, and a fixing assembly. The fixed end of the charging cable is electrically connected to the battery assembly through a first cable routing hole and is fixedly connected to the fixing assembly. The movable end of the charging cable is movably inserted into a receiving cavity through a second cable routing hole and movably extended to the outside through an outlet. A guide surface guides the movable end toward the outlet. The fixed end is configured to remain fixed relative to the housing, while the movable end is movably inserted through the housing. When the movable end moves forward, the charging cable extends relative to the housing, and when the movable end moves backward, the charging cable retracts, forming a loop structure between the first and second cable routing holes. This loop structure serves as a lanyard. Therefore, the portable power bank provided by this invention, by fixing the fixed end with the fixing assembly and allowing the movable end to extend during use and retract to form a loop lanyard when not in use, solves the problem of inconvenient cable storage in existing portable power banks. Furthermore, by using the charging cable as a lanyard, a separate lanyard is eliminated, simplifying the structure of the portable power bank. Furthermore, the structure of the guide surface optimizes the movement path of the charging cable, making the operation of pulling out and retracting the charging cable smoother, reducing the risk of tangling, and further reducing the chance of damage to the charging cable.

[0024] Below, refer to Figures 1 to 10Some embodiments of this application will be described in detail.

[0025] Figure 1 A cross-sectional structural schematic diagram of a mobile power supply provided in some embodiments of this application; Figure 2 A schematic diagram of a power bank with the charging cable hidden, provided in some embodiments of this application; Figure 3 A schematic diagram of the structure of the fixing component of a mobile power supply provided in some embodiments of this application from one perspective; Figure 4 A schematic diagram of the fixing assembly of a mobile power supply provided in some embodiments of this application from another perspective; Figure 5 This is a schematic diagram of the structure of a mobile power supply provided in some embodiments of this application; Figure 6 A schematic diagram of the structure of a charging cable for a mobile power supply provided in some embodiments of this application; Figure 7 A schematic diagram of the structure of the first fixing component of the mobile power supply provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of the second fixing component of the mobile power supply provided in some embodiments of this application; Figure 9 A schematic diagram of the structure of a portion of the casing of a power bank provided in some embodiments of this application; Figure 10 This is a schematic diagram of another part of the housing of a power bank provided in some embodiments of this application.

[0026] like Figures 1 to 4 As shown, this application provides a portable power bank, including a housing 10, a battery assembly 20, a charging cable 30, and a fixing assembly 40. The housing 10 forms a receiving cavity 11 and includes a first wall 12 with a cable outlet 14 communicating with the receiving cavity 11 and the outside. The battery assembly 20 is disposed in the receiving cavity 11. One end of the charging cable 30 is a fixed end 31, and the other end is a movable end 32 with a charging connector 33. The fixing assembly 40 is disposed in the housing 10 and has a first cable routing hole 4101 and a second cable routing hole 4102 communicating with both the receiving cavity 11 and the outside. The second cable routing hole 4102 is located between the first cable routing hole 4101 and the cable outlet 14. The fixed end 31 is disposed in the receiving cavity 11. The fixed end 31 is fixedly connected to the fixed component 40 inside the cavity 11 and electrically connected to the battery assembly 20. The movable end 32 extends out of the outside through the first wiring hole 4101 and can extend into the receiving cavity 11 through the second wiring hole 4102 and can extend out of the outside through the outlet 14. The fixed component 40 includes a guide surface 4220 located inside the receiving cavity 11 and facing the first wall 12. One end of the guide surface 4220 is located close to the second wiring hole 4102, and the other end extends in a direction inclined towards the outlet 14 relative to the extension direction of the second wiring hole 4102.

[0027] "One end of the guide surface 4220 is positioned close to the second wiring hole 4102" means that one end of the guide surface 4220 is closer to the second wiring hole 4102 than the other end. In this way, after the charging cable 30 passes through the second wiring hole 4102 into the receiving cavity 11, it first passes through the end of the guide surface 4220 that is close to the second wiring hole 4102, and then, as the guide surface 4220 extends, it passes through the other end of the guide surface 4220 that is away from the second wiring hole 4102, so that the guide surface 4220 plays a guiding role for the charging cable 30.

[0028] The extension direction of the second wiring hole 4102 is the extension direction of the center line of the second wiring hole 4102 in space, and also the direction in which the second wiring hole 4102 passes through the fixing component 40. In other words, the extension direction of the second wiring hole 4102 is the direction from the end opening of the second wiring hole 4102 that connects to the outside to the end opening of the second wiring hole 4102 that connects to the receiving cavity 11, and the direction from the end opening of the second wiring hole 4102 that connects to the receiving cavity 11 to the end opening of the second wiring hole 4102 that connects to the outside.

[0029] The fixed end 31 is configured to remain fixed relative to the outer casing 10, while the movable end 32 is movably inserted into the outer casing 10. This allows the charging cable 30 to extend relative to the outer casing 10 when the movable end 32 moves forward, and to retract when the movable end 32 moves backward. This creates a loop structure between the first and second wiring holes, which serves as a hanging cord. The forward direction is from the second wiring hole 4102 towards the outlet 14, and the reverse direction is from the outlet 14 towards the second wiring hole 4102. Figure 5 As shown, the direction indicated by the arrow is positive, and the direction opposite to the arrow is negative. The fixed end 31 is secured by the fixing component 40, and the retractable function of the movable end 32 allows the charging cable 30 to be pulled out during use and retracted into a loop when not in use, solving the problem of inconvenient storage of existing power bank cables. Furthermore, by using the charging cable 30 as a lanyard, a separate lanyard is eliminated, simplifying the power bank's structure. In addition, the structure of the guide surface 4220 optimizes the movement path of the charging cable 30, making the operation of pulling out and retracting the charging cable 30 smoother, reducing the risk of tangling, and thus lowering the probability of damage to the charging cable 30.

[0030] In some embodiments of this application, such as Figure 3 As shown, when projected along the extension direction of the second wiring hole 4102, the orthographic projection of the guide surface 4220 and the orthographic projection of the second wiring hole 4102 have an overlapping portion.

[0031] The orthographic projection of the guide surface 4220 overlaps with the orthographic projection of the second wiring hole 4102. The guide surface 4220 can guide the movable end 32 to move towards the outlet 14 more smoothly, reducing the possibility of the charging cable 30 deviating, and at the same time reducing bending stress, so that the charging cable 30 is not damaged.

[0032] In some embodiments of this application, such as Figure 3 and Figure 4 As shown, the fixing component 40 also includes a limiting surface 420, which is perpendicular to the extension direction of the second wiring hole 4102 and is disposed opposite to the second wiring hole 4102. The limiting surface 420 and the end of the guide surface 4220 near the second wiring hole 4102 are connected by a first convex arc-shaped surface 421.

[0033] The limiting surface 420 is perpendicular to and opposite to the second wiring hole 4102, forming a spatial constraint. This allows the movable end 32 to extend into the second wiring hole 4102 and contact the limiting surface 420. The limiting surface 420 is connected to the guide surface 4220 through the first convex arc surface 421. The first convex arc surface 421 smoothly connects the limiting surface 420 and the guide surface 4220, preventing the movable end 32 from being excessively bent and causing mechanical damage, and also preventing it from being cut by sharp edges, thereby improving the service life of the power bank.

[0034] In some embodiments of this application, such as Figure 4 As shown, the wall of the second wiring hole 4102 near the outlet 14 is connected to the outer surface of the fixing assembly 40 facing away from the receiving cavity 11 via the second convex arc surface 412.

[0035] The second convex arc-shaped surface 412 connects the hole wall of the second wiring hole 4102 with the outer surface of the fixing assembly 40 facing away from the receiving cavity 44, forming a smooth transition. This reduces the damage to the charging cable 30 at the outlet of the second wiring hole 4102 caused by sharp edges, and also reduces the wear of the charging cable 30 at the outlet of the second wiring hole 4102 when the charging cable 30 is pulled out or retracted multiple times.

[0036] In some embodiments of this application, such as Figure 4 As shown, the fixing component 40 includes a first fixing member 41 and a second fixing member 42. The first fixing member 41 has a first wiring hole 4101 and a second wiring hole 4102. The second fixing member 42 is disposed on the side of the first fixing member 41 facing the receiving cavity 11. The second fixing member 42 includes a guide surface 4220. The first fixing member 41 and / or the second fixing member 42 are fixedly connected to the outer shell 10, and the first fixing member 41 and the second fixing member 42 are engaged.

[0037] For example, the first fastener 41 and the second fastener 42 can be engaged by a snap-fit, a slot, or an elastic arm structure.

[0038] The first fixing member 41 and / or the second fixing member 42 are fixedly connected to the housing 10. Exemplarily, the first fixing member 41 and / or the second fixing member 42 are connected to the housing 10 by screws, thermoplastic anchors, or clips. The first fixing member 41 and the second fixing member 42 engage to prevent loosening, ensuring that the charging cable 30 does not shift or twist when the movable end 32 moves, reducing damage to the charging cable 30 and thus extending the lifespan of the power bank. The engagement of the first fixing member 41 and the second fixing member 42 also allows for independent replacement of the components, reducing maintenance costs.

[0039] In some embodiments of this application, such as Figures 5 to 7 As shown, the first fixing member 41 includes a first main body portion 410 and a first connecting portion 411 connected to the first main body portion 410. The first main body portion 410 has a first wiring hole 4101 and a second wiring hole 4102. The second fixing member 42 includes a second connecting portion 423 and a guide portion 422 connected to the second connecting portion 423. The guide portion 422 includes a guide surface 4220. Of the first connecting portion 411 and the second connecting portion 423, one has a first buckle 50, and the other has a first slot 51 that engages with the first buckle 50.

[0040] The first main body 410 forms a first wiring hole 4101 and a second wiring hole 4102, which constrains the movement path of the charging cable 30. The first buckle 50 and the first slot 51 engage to connect the second connecting part 423 to the first connecting part 411. That is, the first fixing member 41 and the second fixing member 42 form a self-locking mechanism, realizing a fixed connection between the two and making the connection more reliable. The guide part 422 guides the movement of the movable end 32 between the second wiring hole 4102 and the cable outlet 14, making the charging cable 30 smoother when pulled out and retracted, and reducing the risk of the charging cable 30 getting tangled.

[0041] In some embodiments of this application, such as Figures 7 to 10 As shown, the first connecting part 411 and the second connecting part 423 are fixedly connected to the housing 10 by fasteners (not shown in the figure); and / or, one of the first connecting part 411 and the housing 10 is provided with a second latch 60, and the other is provided with a second slot 61 that engages with the second latch 60.

[0042] For example, such as Figures 7 to 9 As shown, the first connecting part 411 is provided with at least one first connecting hole 4110, and the second connecting part 423 is provided with at least one second connecting hole 4230. The first connecting hole 4110 and the second connecting hole 4230 are aligned and communicate with each other. The outer shell 10 is provided with at least one third connecting hole 15. The third connecting hole 15 is aligned and communicates with the first connecting hole 4110 and the second connecting hole 4230. The three are connected by the same fastener to realize the fixed connection of the first fixing member 41, the second fixing member 42 and the outer shell 10.

[0043] The first fixing member 41 is fixed to the outer casing 10 via the first connecting part 411 and the second fixing member 42 via the second connecting part 423 using fasteners. For example, the fasteners can be, but are not limited to, screws, pins, weld studs, etc. The fasteners securely connect the first fixing member 41, the second fixing member 42, and the outer casing 10 through the first connecting hole 4110, the second connecting hole 4230, and the third connecting hole 15.

[0044] In addition, such as Figures 7 to 10 As shown, of the first connecting part 411 and the outer shell 10, one has a second buckle 60, and the other has a second slot 61 that engages with the second buckle 60, thus fixing the first fixing member 41 and the outer shell 10 together. The first fixing member 41, the second fixing member 42, and the outer shell 10 are securely connected by the second buckle 60, the second slot 61, the fastener, and the connecting hole. This further prevents the charging cable 30 from shifting or twisting when the movable end 32 moves, reducing damage to the charging cable 30 and thus extending the lifespan of the power bank.

[0045] In some embodiments of this application, such as Figures 4 to 8 As shown, a locking cavity 43 is formed between the first main body 410 and the second connecting part 423. The locking cavity 43 is connected to the first wiring hole 4101. The cross-sectional area of ​​the locking cavity 43 is larger than the cross-sectional area of ​​the first wiring hole 4101. The cross-section is a plane perpendicular to the extension direction of the first wiring hole 4101. The fixed end 31 includes a locking head 310. The fixed end 31 is locked and fixed to the locking cavity 43 by the locking head 310.

[0046] For example, the locking head 310 is formed on the fixed end 31 of the charging cable 30. The shape of the locking head 310 matches the locking cavity 43. The cross-sectional dimension of the locking head 310 is larger than the cross-section of other parts of the fixed end 31. Thus, the locking head 310 forms a first stepped surface 3101 at the connection with other parts. The connection between the locking cavity 43 and the first cable hole 4101 forms a second stepped surface 430 opposite to the first stepped surface 3101. The first stepped surface 3101 and the second stepped surface 430 abut against each other, which can constrain the movement of the locking head 310 from the receiving cavity 11 to the outside along the extension direction of the first cable hole 4101. In addition, the locking cavity 43 has a limiting inner wall 431 facing the first wiring hole 4101. The surface of the locking head 310 away from the first wiring hole 4101 abuts against the limiting inner wall 431, which can constrain the movement of the locking head 310 from the outside to the receiving cavity 11 along the extension direction of the first wiring hole 4101. In this way, the locking head 310 and the locking cavity 43 cooperate with each other to realize the fixed connection between the fixing component 40 and the fixing end 31 of the charging cable 30, reducing the possibility of the charging cable 30 loosening or falling off during the extension and retraction process.

[0047] In some embodiments of this application, such as Figure 7 and Figure 8 As shown, the first main body portion 410 has a first recessed structure 70, and the second connecting portion 423 has a second recessed structure 71. The first recessed structure 70 and the second recessed structure 71 are arranged opposite to each other to form a locking cavity 43. The second connecting portion 423 has a locking opening 80 at at least one end in a first direction that intersects the extension direction of the first wiring hole 4101. The locking opening 80 is used to allow the locking head 310 to extend into the second recessed structure 71.

[0048] The first main body 410 has a first recessed structure 70, and the second connecting part 423 has a second recessed structure 71. The first recessed structure 70 and the second recessed structure 71 are arranged opposite each other to form a locking cavity 43, which is used to fix the locking head 310, thereby fixing the fixed end 31 and reducing the possibility of the charging cable 30 loosening or falling off during extension and retraction. The second connecting part 423 has a locking opening 80 at at least one end along a first direction that intersects the extension direction of the first cable hole 4101. The locking opening 80 is used for the locking head 310 to extend into the second recessed structure 71. The locking head 310 can enter the second recessed structure 71 through the locking opening 80, which simplifies the assembly process, effectively improves production efficiency, facilitates disassembly, and reduces maintenance costs.

[0049] In some embodiments of this application, such as Figure 2 As shown, the outer casing 10 also includes a second wall 13 adjacent to the first wall 12. The first wall 12 and the second wall 13 are connected by an arc-shaped wall 16, and the fixing component 40 is disposed on the arc-shaped wall 16.

[0050] The arc-shaped wall 16 serves as a transitional connection between the first wall 12 and the second wall 13. As a carrier of the fixed component 40, the arc-shaped wall 16 not only reduces additional protruding structures and maintains the simplicity of the outer shell 10, but the arc-shaped structure also reduces bending stress on the charging cable 30, allowing the charging cable 30 to transition smoothly, thereby improving the service life of the power bank.

[0051] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A portable power bank, characterized in that, include: The outer casing has a receiving cavity, and the outer casing includes a first wall having a cable outlet communicating with the receiving cavity and the outside. The battery assembly is disposed in the receiving cavity; The charging cable has a fixed end on one end and a movable end with a charging connector on the other end. A fixing component is disposed on the housing. The fixing component has a first wiring hole and a second wiring hole that are both connected to the receiving cavity and the outside. The second wiring hole is located between the first wiring hole and the outlet. The fixing end is disposed in the receiving cavity and electrically connected to the battery assembly. The fixing end is fixedly connected to the fixing component. The movable end extends out to the outside through the first wiring hole and can be movably extended into the receiving cavity through the second wiring hole and can be movably extended out to the outside through the outlet. The fixing component includes a guide surface located within the receiving cavity and facing the first wall. One end of the guide surface is disposed close to the second wiring hole, and the other end extends in a direction inclined toward the outlet along the extension direction relative to the second wiring hole. The fixing component includes: A first fixing member, wherein the first fixing member is formed with the first wiring hole and the second wiring hole; A second fixing member is disposed on the side of the first fixing member facing the receiving cavity, and the second fixing member includes the guide surface; The first fixing member and / or the second fixing member are fixedly connected to the outer shell, and the first fixing member and the second fixing member are engaged.

2. The portable power bank according to claim 1, characterized in that, Projecting along the extension direction of the second wiring hole, the orthographic projection of the guide surface and the orthographic projection of the second wiring hole have an overlapping portion.

3. The portable power bank according to claim 2, characterized in that, The fixing component further includes a limiting surface, which is perpendicular to the extension direction of the second wiring hole and is disposed opposite to the second wiring hole. The limiting surface and the end of the guide surface near the second wiring hole are connected by a first convex arc surface.

4. The portable power bank according to claim 1, characterized in that, The wall of the second wiring hole near the outlet is connected to the outer surface of the fixing assembly facing away from the receiving cavity via a second convex arc surface.

5. The portable power bank according to claim 1, characterized in that, The first fixing member includes a first main body portion and a first connecting portion connected to the first main body portion. The first main body portion is formed with a first wiring hole and a second wiring hole. The second fastener includes a second connecting portion and a guide portion connected to the second connecting portion, the guide portion including the guide surface. Of the first connecting portion and the second connecting portion, one has a first buckle and the other has a first slot that engages with the first buckle.

6. The portable power bank according to claim 5, characterized in that, The first connecting part and the second connecting part are fixedly connected to the housing by fasteners; and / or Of the first connecting part and the outer shell, one has a second buckle and the other has a second slot that engages with the second buckle.

7. The portable power bank according to claim 5 or 6, characterized in that, A locking cavity is formed between the first main body and the second connecting part. The locking cavity is connected to the first wiring hole. The cross-sectional area of ​​the locking cavity is larger than the cross-sectional area of ​​the first wiring hole. The cross-section is a plane perpendicular to the extending direction of the first wiring hole. The fixed end includes a locking head, and the fixed end is locked in place by the locking head and the locking cavity.

8. The portable power bank according to claim 7, characterized in that, The first main body portion has a first recessed structure, and the second connecting portion has a second recessed structure. The first recessed structure and the second recessed structure are arranged opposite to each other to form the engaging cavity. The second connecting portion forms a snap-in opening at at least one end along a first direction that intersects the extension direction of the first wiring hole, the snap-in opening being used for the snap-in head to extend into the second recessed structure.

9. The portable power bank according to any one of claims 1 to 6, characterized in that, The outer casing also includes a second wall adjacent to the first wall, and the first wall and the second wall are connected by an arc-shaped wall, with the fixing component disposed on the arc-shaped wall.

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