A portable power bank with a foldable charging head

By designing a receiving slot and a limiting head in conjunction with an elastic element on the power bank's outer shell, a foldable design for the charging head is achieved, solving the problem of instability during use or storage and improving portability and user experience.

CN224520258UActive Publication Date: 2026-07-17SHENZHEN HUAMEI XINGTAI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUAMEI XINGTAI TECH CO LTD
Filing Date
2025-07-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing power banks lack a limiting structure for the charging head, making it difficult to keep the charging head stable during use or storage.

Method used

A receiving groove is formed on the outer shell of the power bank. The charging head is rotatably connected to the receiving groove via a rotating shaft. Through the cooperation of a limiting head and an elastic element, the charging head can be folded and limited, ensuring its stability in different states.

Benefits of technology

It effectively reduces the overall size of the power bank, improves portability, and ensures that the charging head is not easily detached or loosened during use or storage, thus enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a portable power bank with a foldable charging head, belonging to the technical field of portable power banks. It includes a portable power bank body and a charging head body. The outer shell of the portable power bank body has a protruding receiving groove. The charging head body is rotatably connected to the receiving groove via a pivot. A limiting head is fixedly connected to the end of the pivot away from the charging head body. The limiting head has two adjacent planes. An elastic element is provided inside the cavity of the receiving groove. When the elastic element abuts against the corresponding plane, it can limit the charging head body in its unfolded or folded state. This application effectively ensures the stability of the charging head body during use or storage.
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Description

Technical Field

[0001] This application relates to the technical field of power banks, and in particular to a power bank with a foldable charging head. Background Technology

[0002] Portable power bank technology has developed rapidly with the popularization of electronic devices and has become an indispensable part of people's daily lives. Whether it is a business trip or a leisure trip, portable power banks provide convenient power support for various electronic devices.

[0003] Existing power banks have a charging head rotatably connected to their outer casing, allowing the power bank to be charged via its built-in charging head. Simultaneously, the rotatable connection between the charging head and the power bank's casing allows the charging head to be folded and stored within the casing, effectively reducing the overall size of the power bank.

[0004] However, the aforementioned technologies have the following problems: the power bank's casing lacks a structure to limit the charging head, making it difficult to ensure that the charging head remains stable during use or storage. Utility Model Content

[0005] To ensure the stability of the charging head during use or storage, this application provides a portable power bank with a foldable charging head.

[0006] The portable power bank with a foldable charging head provided in this application adopts the following technical solution:

[0007] A portable power bank with a foldable charging head includes a power bank body and a charging head body. The outer shell of the power bank body is formed with a protruding receiving groove. The charging head body is rotatably connected to the receiving groove via a pivot. A limiting head is fixedly connected to the end of the pivot away from the charging head body. The limiting head is provided with two adjacent planes. An elastic element is provided inside the cavity of the receiving groove. When the elastic element abuts against the plane corresponding to the position, the elastic element can limit the charging head body in the unfolded or folded state.

[0008] By adopting the above technical solution, the protruding receiving groove formed on the outer shell of the power bank provides storage space for the charging head. The charging head is rotatably connected to the receiving groove via a pivot, realizing a foldable design for the charging head, effectively reducing the overall size of the power bank and improving portability. The cooperation between the two adjacent planes on the limiting head and the elastic element allows the charging head to be limited by the reaction force of the elastic element when the charging head is in the unfolded or folded state, ensuring that the charging head remains stable during use or storage, effectively reducing accidental detachment or loosening, and improving the user experience.

[0009] Optionally, a support is fixedly embedded in the receiving groove, and extensions are formed on both sides of the support. The elastic element is detachably connected to the bottom surface of the extension, and the end of the limiting head away from the rotating shaft extends to the top surface of the elastic element. The plane of the limiting head abuts against the top surface of the elastic element.

[0010] By adopting the above technical solution, the support provides an installation base for the elastic element, ensuring that the elastic element is stably fixed in the receiving groove; the structural design of the extension allows the elastic element to accurately abut against the plane on the limiting head, thereby effectively limiting the charging head body in the unfolded or retracted state; at the same time, the end of the limiting head away from the rotating shaft extends to the top surface of the elastic element, ensuring reliable contact between the two and further enhancing the stability of the charging head body in different states.

[0011] Optionally, the elastic element is provided with a locking element that is threadedly connected to the extension.

[0012] By adopting the above technical solution, the design of the threaded connection between the locking part and the extension provides a reliable fixing method, ensuring that the elastic part remains stable when limiting the limit head, effectively reducing the loosening or falling off of the elastic part during use, thereby improving the reliability and service life of the entire structure.

[0013] Optionally, the bottom surface of the extension is fixedly connected to two vertically penetrating positioning shafts that are part of the elastic element.

[0014] By adopting the above technical solution, the positioning shaft can accurately position the elastic component, ensuring that the elastic component will not shift during installation, thereby improving assembly efficiency and stability. Furthermore, the arrangement of the two positioning shafts further enhances the positioning accuracy of the elastic component, providing reliable structural support for the detachable connection between the elastic component and the extension, and effectively ensuring the smoothness and accuracy of the limit head during rotation.

[0015] Optionally, a cable tie is fixedly connected to one side of the outer shell of the power bank body, and the cable tie is secured to a Type-C charging cable via a limiting groove.

[0016] By adopting the above technical solution, the cable tie head is secured to the Type-C charging cable through the limiting slot, allowing the Type-C charging cable to be neatly stored on the power bank body, effectively reducing the problem of Type-C charging cable loss or tangling, and improving user convenience.

[0017] Optionally, the inner top wall and inner bottom wall of the limiting groove are narrowed to form a narrowed portion, which is used to engage the plug of the Type-C charging cable.

[0018] By adopting the above technical solution, the narrowing part allows the limiting groove to securely engage the plug of the Type-C charging cable with an interference fit, effectively reducing the risk of the Type-C charging cable coming loose during movement, while also facilitating the removal and placement of the Type-C charging cable, thus improving the user experience.

[0019] Optionally, the outer shell of the power bank body is further formed with two placement slots that communicate with the receiving slot, and the two placement slots correspond to the positions of the two plug-in parts of the charging head body, respectively.

[0020] By adopting the above technical solution, the placement slots allow the two plugs of the charging head to be located in their respective placement slots when stored, thereby protecting the plugs and effectively reducing the risk of collisions or damage between the plugs and other components inside the casing. At the same time, the design of the placement slots and the receiving slots connecting ensures the integrity of the charging head when stored, improving the cleanliness and portability of the power bank.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The protruding receiving groove formed on the outer shell of the power bank provides storage space for the charging head. The charging head is rotatably connected to the receiving groove via a pivot, realizing the foldable design of the charging head, effectively reducing the overall size of the power bank and improving portability. The cooperation between the two adjacent planes on the limiting head and the elastic element can limit the charging head when it is in the unfolded or folded state through the reaction force of the elastic element, ensuring that the charging head remains stable during use or storage, effectively reducing accidental drop or loosening, and improving the user experience.

[0023] 2. The bracket provides a mounting base for the elastic element, ensuring that the elastic element is stably fixed in the receiving groove; the structural design of the extension allows the elastic element to accurately abut against the plane on the limiting head, thereby effectively limiting the charging head body in the unfolded or retracted state; at the same time, the end of the limiting head away from the rotating shaft extends to the top surface of the elastic element, ensuring reliable contact between the two and further enhancing the stability of the charging head body in different states.

[0024] 3. The cable tie head secures the Type-C charging cable via a retaining slot, allowing the Type-C charging cable to be neatly stored on the power bank itself, effectively reducing the problem of lost or tangled Type-C charging cables and improving user convenience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application.

[0026] Figure 2 This is a schematic diagram of the overall structure of this application from another perspective.

[0027] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0028] Figure 4 This is a schematic diagram of the cable tie head and Type-C charging cable of this application.

[0029] Figure 5 This is a cross-sectional view of the cable tie and Type-C charging cable of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Charging head body; 11. Plug-in part; 12. Rotating shaft; 121. Limiting head; 122. Through hole; 123. Flat surface; 2. Outer shell; 21. Receiving groove; 211. Through port; 22. Placement groove; 23. Switch button; 24. Type-C interface; 25. Support; 251. Extension part; 252. Spring piece; 253. Positioning shaft; 254. Clearing opening; 26. Cable tie head; 261. Type-C charging cable; 262. Limiting groove; 263. Narrowing part; 27. Connecting strip. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a portable power bank with a foldable charging head. (See also...) Figure 1 and Figure 2 The power bank with a foldable charging head includes a power bank body and a charging head body 1 that can be folded onto the power bank body. The power bank body includes a shell 2, one side of which is formed with a protruding receiving groove 21. The charging head body 1 is rotatably connected to the receiving groove 21 so that the charging head body 1 can be stored in the receiving groove 21 or extend out of the receiving groove 21. When the charging head body 1 is flipped out of the receiving groove 21, the two plugs 11 of the charging head body 1 can be plugged into a power socket to charge the battery cells inside the power bank body.

[0033] In this embodiment, the charging head body 1 is a European standard charging head, so that the power bank can be used for charging in European countries, thereby solving the charging problem for people traveling to Europe. In other embodiments, the charging head body 1 can be a Chinese standard charging head, an American standard charging head, or other other national standard charging heads.

[0034] The outer shell 2 also has two placement slots 22 that are connected to the receiving slot 21. The two placement slots 22 correspond to the positions of the two plug parts 11 of the charging head body 1. When the charging head body 1 is stored in the receiving slot 21, the two plug parts 11 of the charging head body 1 are located in the two placement slots 22 respectively, so as to realize the storage of the two plug parts 11 of the charging head body 1.

[0035] A power switch 23 and two Type-C ports 24 are located on one side of the outer casing 2. Both the power switch 23 and the Type-C ports 24 are electrically connected to the circuit board inside the power bank. The power switch 23 is used to turn the internal circuitry of the power bank on and off. The Type-C ports 24 are bidirectional Type-C designs, so that the Type-C ports 24 not only support input to charge the battery cells inside the power bank, but also support output to power external devices, including but not limited to mobile phones, tablets, or laptops.

[0036] Reference Figure 1 and Figure 3 The charging head body 1 has rotating shafts 12 formed on both ends. The end of the rotating shaft 12 away from the charging head body 1 extends into the cavity of the receiving groove 21, and the charging head body 1 is rotatably connected to the receiving groove 21 through the rotating shaft 12. The inner bottom wall of the receiving groove 21 has an opening 211. A support 25 matching the opening 211 is fixedly embedded in the opening 211. The inner bottom wall of the support 25 is flush with the inner bottom wall of the receiving groove 21. Both sides of the support 25 have horizontally arranged extensions 251. The extensions 251 extend into the cavity of the receiving groove 21, and the bottom surface of the extensions 251 is detachably connected to an elastic member for limiting the rotating shaft 12.

[0037] In this embodiment, the elastic element is a spring sheet 252. A positioning shaft 253 is fixedly connected to the bottom surface of the extension 251. The positioning shaft 253 vertically penetrates the spring sheet 252 to achieve initial positioning of the spring sheet 252. A locking element is vertically inserted on the spring sheet 252. One end of the locking element passes through the spring sheet 252 and is threadedly connected to the extension 251 to achieve a detachable connection between the spring sheet 252 and the extension 251. In this embodiment, the locking element includes, but is not limited to, screws and bolts. Two positioning shafts 253 are provided on the same extension 251, and the locking element is located between the two positioning shafts 253. Thus, the arrangement of two positioning shafts 253 allows the spring sheet 252 to be positioned more accurately on the extension 251, thereby facilitating the connection of the locking element to the extension 251.

[0038] A limiting head 121, coaxially arranged with the rotating shaft 12, is fixedly connected to the end of the rotating shaft 12 away from the charging head body 1. Through holes 122 are provided at the axes of both the rotating shaft 12 and the limiting head 121, allowing the charging head body 1 and the power bank body to be connected via the through holes 122. A clearance opening 254, corresponding to the position of the limiting head 121, is provided on the extension portion 251. The clearance opening 254 allows the limiting head 121 to be positioned. The end of the limiting head 121 away from the rotating shaft 12 extends through the clearance opening 254 to the top surface of the spring piece 252. Two adjacent planes 123 are provided on the limiting head 121. The top surface of the spring piece 252 abuts against the plane 123 corresponding to its position, thereby limiting the charging head body 1.

[0039] When the charging head body 1 is rotated so that it extends from inside the receiving groove 21 to outside the receiving groove 21, the connection between the two planes 123 will press down on the spring piece 252, causing the spring piece 252 to deform. At this time, the spring piece 252 releases its restriction on the limiting head 121 until the limiting head 121 transitions to another plane 123, at which point the spring piece 252 resets, thereby limiting the rotating charging head body 1.

[0040] Reference Figure 1 and Figure 4 A connecting strip 27 is fixedly connected to the side of the outer casing 2 away from the switch button 23. A cable tie head 26 is fixedly connected to the end of the connecting strip 27 away from the outer casing 2. A Type-C charging cable 261 is snapped onto the cable tie head 26.

[0041] Reference Figure 4 and Figure 5 The cable tie head 26 has limiting grooves 262 on both sides, and the plugs at both ends of the Type-C charging cable 261 are respectively engaged in the corresponding limiting grooves 262. In this embodiment, the inner top wall and inner bottom wall of the limiting groove 262 are narrowed to form a narrowing portion 263, which is located at the end of the limiting groove 262 away from the connecting strip 27. The narrowing portion 263 allows the plugs of the Type-C charging cable 261 to be engaged in the corresponding limiting grooves 262 with an interference fit. After the plugs at both ends of the Type-C charging cable 261 are engaged on the cable tie head 26, the Type-C charging cable 261 can be used as a handle for the power bank body.

[0042] The implementation principle of a portable power bank with a folding charging head in this application embodiment is as follows: When the charging head body 1 is in the storage state, one plane 123 of the limiting head 121 abuts against the top surface of the spring piece 252. The reaction force applied by the spring piece 252 keeps the charging head body 1 stable, effectively reducing the accidental detachment of the charging head body 1. When the charging head body 1 needs to be used, the charging head body 1 is rotated, and the connection between the two planes 123 will press the spring piece 252 downward, causing the spring piece 252 to deform and release the limiting head 121 until the limiting head 121 transitions to another plane 123, and the spring piece 252 returns to its original position, thereby limiting the rotating charging head body 1. This process utilizes the elasticity of the spring piece 252 and the design of the limiting head 121 to ensure the smooth flipping and stable fixation of the charging head body 1.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mobile power source with a folding charging head, characterized in that: The device includes a power bank body and a charging head body (1). The outer shell (2) of the power bank body is formed with a protruding receiving groove (21). The charging head body (1) is rotatably connected to the receiving groove (21) via a rotating shaft (12). A limiting head (121) is fixedly connected to one end of the rotating shaft (12) away from the charging head body (1). Two adjacent planes (123) are provided on the limiting head (121). An elastic element is provided inside the cavity of the receiving groove (21). When the elastic element abuts against the plane (123) corresponding to the position, the elastic element can limit the charging head body (1) in the unfolded or retracted state.

2. The mobile power source with a folding charging head according to claim 1, characterized in that: A support (25) is fixedly embedded in the receiving groove (21). Both sides of the support (25) are formed with extensions (251). The elastic element is detachably connected to the bottom surface of the extension (251). The end of the limiting head (121) away from the rotating shaft (12) extends to the top surface of the elastic element. The plane (123) of the limiting head (121) abuts against the top surface of the elastic element.

3. The power bank with a folding charging head according to claim 2, characterized in that: The elastic element is vertically provided with a locking element that is threadedly connected to the extension (251).

4. The power bank with a folding charging head according to claim 2, characterized in that: The bottom surface of the extension (251) is fixedly connected to two vertically penetrating positioning shafts (253).

5. The mobile power source with a folding charging head of claim 1, wherein: A cable tie (26) is fixedly connected to one side of the outer shell (2) of the power bank body, and the cable tie (26) is connected to a Type-C charging cable (261) through a limiting groove (262).

6. The mobile power source with a folding charging head of claim 5, wherein: The inner top wall and inner bottom wall of the limiting groove (262) are narrowed to form a narrowed part (263), which engages with the plug of the Type-C charging cable (261).

7. The mobile power source with a folding charging head of claim 1, wherein: The outer shell (2) of the power bank body is also formed with two placement slots (22) that communicate with the receiving slot (21). The two placement slots (22) correspond to the positions of the two plug-in parts (11) of the charging head body (1).