Magnetic charging treasure with retractable line

Abstract

The utility model discloses a kind of magnetic attraction power banks with telescopic wire, to solve the single charging mode of existing magnetic attraction power bank, application range is limited, difficult to adapt to the problem of diversified charging needs. The power bank includes shell, electric core, circuit board, magnetic attraction charging coil, take-up turntable assembly, charging wire and charging head. Electric core is installed in shell, circuit board is installed in shell and is electrically connected with electric core, its output end connects magnetic attraction charging coil, magnetic attraction charging coil is located between electric core and shell. Take-up turntable assembly is arranged in shell, charging wire is telescopically arranged in the component, inner end is connected with the output end of circuit board, outer end extends shell and connects charging head. Wireless charging is realized by magnetic attraction charging coil, wired charging is realized by the aid of take-up turntable assembly, charging wire and charging head, charging mode is enriched, application range is expanded, and user charging experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of power bank technology, specifically to a magnetic power bank with a retractable cord. Background Technology

[0002] With the widespread use of mobile devices, magnetic power banks have gained popularity among consumers due to their convenience—no need to plug or unplug, they simply attach and charge when close to the device. However, most magnetic power banks on the market currently rely solely on wireless charging technology for power transfer, resulting in a relatively simple charging method and limited application scope.

[0003] This single wireless charging method renders magnetic power banks ineffective when used with devices that do not support wireless charging, significantly limiting the types of devices they can be used with. Furthermore, due to the distance limitation of wireless charging, charging is impossible when the device and the magnetic power bank need to maintain a certain distance, making it difficult to meet the diverse charging needs of users in different scenarios.

[0004] Furthermore, the single charging method leaves users with little choice and makes it impossible to switch charging methods flexibly according to actual conditions, which to some extent reduces the user's charging experience and fails to fully bring convenience and enjoyment to people's lives.

[0005] Against this backdrop, how to add new charging methods to magnetic power banks, expand their application scope, provide consumers with more application scenarios, and improve the user charging experience has become an urgent problem to be solved in this field. Utility Model Content

[0006] In view of the above, this utility model provides a magnetic power bank with a retractable cable, which aims to solve the problems of existing magnetic power banks having a single charging method, relying solely on wireless charging technology, resulting in a limited application range, inability to meet the charging needs of devices that do not support wireless charging, and difficulty in adapting to diverse charging needs in different scenarios due to the limitation of wireless charging distance, thereby reducing the user's charging experience.

[0007] The technical solution of this utility model:

[0008] This utility model provides a magnetic power bank with a retractable cable, including a shell, a battery cell, a circuit board, a magnetic charging coil, a take-up reel assembly, a charging cable, and a charging head. The battery cell is installed inside the shell. The circuit board is installed inside the shell and located at the electrical connection end of the battery cell. The input end of the circuit board is electrically connected to the battery cell, and the output end of the circuit board is electrically connected to the magnetic charging coil. The magnetic charging coil is installed between the battery cell and the shell. The take-up reel assembly is installed inside the shell and located at one end of the circuit board. The charging cable is retractably wound inside the take-up reel assembly. The inner end of the charging cable is electrically connected to the output end of the circuit board, and the outer end of the charging cable extends outside the shell and is connected to the charging head.

[0009] According to one embodiment of the present invention, the take-up turntable assembly includes a lower turntable body, an inner shaft, a winding sleeve, an upper turntable body, a coil spring, and a damping device; the inner shaft is fixed at the center of the lower turntable body; the winding sleeve is rotatably mounted on the inner shaft; the coil spring is located between the inner shaft and the winding sleeve, one end of the coil spring is fixed to the inner shaft, and the other end is connected to the winding sleeve; the upper turntable body is mounted on the lower turntable body; the charging cable is wound on the winding sleeve and accommodated between the upper and lower turntable bodies; the damping device includes a friction plate and an elastic element, the friction plate cooperates with the winding sleeve, and the elastic element applies pressure to the friction plate, so that friction is generated between the friction plate and the winding sleeve to form damping.

[0010] According to one embodiment of the present invention, it further includes a heat sink and a heat dissipation frame; the heat sink is disposed between the battery cell and the magnetic charging coil; the heat dissipation frame is disposed around the battery cell; the heat of the battery cell is conducted to the outer casing for heat dissipation through the heat sink and the heat dissipation frame.

[0011] According to one embodiment of the present invention, the charging cable is a flat cable.

[0012] According to one embodiment of the present invention, the outer shell is provided with a storage slot, and the charging head is snapped into the storage slot.

[0013] According to one embodiment of the present invention, the charging head adopts a Type-C interface, a Lightning interface, or a MicroUSB interface.

[0014] According to one embodiment of the present invention, the outer casing is provided with a charging interface connected to the circuit board, and the charging interface is a Type-C interface.

[0015] According to one embodiment of the present invention, the outer casing is provided with an on / off switch connected to a circuit board for controlling whether charging is enabled.

[0016] According to one embodiment of the present invention, the outer shell includes a bottom shell, a connecting frame, and a top shell; the bottom shell and the top shell are snapped together, and one end of the bottom shell and the top shell forms a mounting groove adapted to the connecting frame, and the connecting frame is snapped into the mounting groove.

[0017] According to one embodiment of the present invention, the storage slot, charging interface and power switch are all disposed on the connecting frame.

[0018] The magnetic charging bank with a retractable cord provided by this utility model has the following significant advantages compared with the prior art:

[0019] Beneficial effects:

[0020] I. Enhanced Charging Methods and Improved Device Compatibility: This magnetic power bank features both magnetic wireless charging and wired charging. The magnetic charging coil enables convenient charging of devices supporting wireless charging, while the wired charging structure, consisting of a retractable coil, charging cable, and charging head, provides power to devices that do not support wireless charging. This significantly expands the range of compatible devices and solves the device compatibility limitations caused by the single charging method of traditional magnetic power banks.

[0021] II. Expanding Usage Scenarios and Meeting Diverse Needs: The charging cable is retractable and wound within the cable reel assembly, allowing users to flexibly adjust its length according to actual needs. When the device and power bank need to maintain a certain distance, the charging cable can be stretched to a suitable length for wired charging, eliminating the distance limitations of wireless charging. This makes it suitable for various scenarios such as home, office, and outdoors, meeting users' charging needs in different environments.

[0022] 3. Optimized storage experience and reduced charging cable wear: The cable retractor design allows the charging cable to be neatly stored inside the casing, avoiding tangling and knots caused by random placement. When the wired charging function is not in use, the charging cable can be easily retracted into the retractor, reducing cable wear, extending the cable's lifespan, and making the power bank more organized and portable.

[0023] IV. Highly Efficient and Coordinated Structure for Enhanced Ease of Use: The components work closely together, and the electrical energy provided by the battery cells is precisely transmitted to the magnetic charging coil and charging cable via the circuit board, ensuring stable operation of both charging methods. Users can freely switch between charging methods according to device type and usage scenario. The operation is simple and intuitive, effectively improving the user's charging experience and bringing more convenience to daily life.

[0024] The preferred embodiments of this utility model and their beneficial effects will be further described in detail in conjunction with specific implementation methods. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but should not be construed as limiting the present invention. In the drawings:

[0026] Figure 1 This is a perspective view of the magnetic charging bank with a retractable cable according to this utility model;

[0027] Figure 2 This is a first exploded view of the magnetic charging bank with a retractable cable according to this utility model;

[0028] Figure 3 This is a second exploded view of the magnetic charging bank with a retractable cable according to this utility model;

[0029] Figure 4 This is a diagram showing the usage state of the magnetic charging bank with a retractable cable according to this utility model.

[0030] The following are the reference numerals: 1. Outer shell; 2. Battery cell; 3. Circuit board; 4. Magnetic charging coil; 5. Reel assembly; 5. Lower plate; 51. Inner shaft; 52. Winding sleeve; 53. Upper plate; 54. Charging cable; 6. Charging head; 7. Heat sink; 8. Heat dissipation frame; 9. Storage slot; 10. Charging interface; 11. Power switch; 12. Bottom shell; 14. Connecting frame; 15. Top shell; 16. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0032] Please see Figures 1 to 4 This utility model provides a magnetic power bank with a retractable cable, including a shell 1, a battery cell 2, a circuit board 3, a magnetic charging coil 4, a take-up reel assembly 5, a charging cable 6, and a charging head 7. The battery cell 2 is installed inside the shell 1. The circuit board 3 is installed inside the shell 1 and located at the electrical connection point of the battery cell 2. The input end of the circuit board 3 is electrically connected to the battery cell 2, and the output end of the circuit board 3 is electrically connected to the magnetic charging coil 4. The magnetic charging coil 4 is installed between the battery cell 2 and the shell 1. The take-up reel assembly 5 is installed inside the shell 1 and located at one end of the circuit board 3. The charging cable 6 is retractably wound inside the take-up reel assembly 5, with its inner end electrically connected to the output end of the circuit board 3, and its outer end extending outside the shell 1 and connected to the charging head 7.

[0033] The magnetic charging bank with a retractable cord provided by this utility model has the following significant advantages compared with the prior art:

[0034] Beneficial effects:

[0035] I. Enhanced Charging Methods and Improved Device Compatibility: This magnetic power bank features both magnetic wireless charging and wired charging. The magnetic charging coil 4 enables convenient charging of devices supporting wireless charging, while the wired charging structure, consisting of the retractable coil 5, charging cable 6, and charging head 7, provides power to devices that do not support wireless charging. This significantly expands the range of compatible devices and solves the device compatibility limitations caused by the single charging method of traditional magnetic power banks.

[0036] II. Expanding Usage Scenarios and Meeting Diverse Needs: The charging cable 6 is retractable and wound within the cable reel assembly 5, allowing users to flexibly adjust its length according to actual usage needs. When the device and power bank need to maintain a certain distance, the charging cable 6 can be stretched to a suitable length for wired charging, eliminating the distance limitations of wireless charging. This makes it suitable for various scenarios such as home, office, and outdoors, meeting users' charging needs in different environments.

[0037] III. Optimized storage experience and reduced wear and tear on the charging cable 6: The design of the cable retractor assembly 5 allows the charging cable 6 to be neatly stored inside the outer casing 1, avoiding tangling and knotting caused by random placement of the charging cable. When the wired charging function is not in use, the charging cable 6 can be easily retracted into the cable retractor assembly 5, reducing wear and tear on the charging cable 6, extending its lifespan, and making the power bank more organized and portable.

[0038] IV. Highly efficient and coordinated structure enhances ease of use: The components work closely together, with the electrical energy provided by the battery cell 2 precisely transmitted to the magnetic charging coil 4 and charging cable 6 via the circuit board 3, ensuring stable operation of both charging methods. Users can freely switch between charging methods according to device type and usage scenario. The operation is simple and intuitive, effectively improving the user's charging experience and bringing more convenience to daily life.

[0039] In this embodiment, the take-up turntable assembly 5 includes a lower turntable 51, an inner shaft 52, a winding sleeve 53, an upper turntable 54, a coil spring, and a damping device. The inner shaft 52 is fixed at the center of the lower turntable 51, and the winding sleeve 53 is rotatably mounted on the inner shaft 52. The coil spring is located between the inner shaft 52 and the winding sleeve 53. One end of the coil spring is fixed to the inner shaft 52, and the other end is connected to the winding sleeve 53, thereby providing elastic force for the rotation of the winding sleeve 53. The upper turntable 54 is mounted on the lower turntable 51. The charging cable 6 is wound on the winding sleeve 53 and accommodated between the upper turntable 54 and the lower turntable 51. The damping device includes a friction plate and an elastic element. The friction plate cooperates with the winding sleeve 53, and the elastic element applies pressure to the friction plate, generating friction between the friction plate and the winding sleeve 53 to form damping. When the charging cable 6 is stretched, the winding sleeve 53 rotates as the charging cable 6 is pulled out. The friction plate and the winding sleeve 53 generate relative motion, producing damping resistance. When the stretching of the charging cable 6 stops, the damping resistance can prevent the winding sleeve 53 from rotating, thereby locking the charging cable 6 at the current stretched length position.

[0040] When the charging cable 6 is pulled out, the winding sleeve 53 rotates, causing the coil spring to be tightened and storing elastic potential energy. When a brief tension is applied to the already pulled-out charging cable 6 and then released, the charging cable 6 causes the winding sleeve 53 to rotate slightly, which temporarily reduces the pressure between the friction plate of the damping device and the winding sleeve 53, weakens the damping resistance, and the coil spring releases its elastic potential energy, causing the winding sleeve 53 to rotate in the opposite direction, retracting the charging cable 6 and rewinding it onto the winding sleeve 53.

[0041] This utility model relates to a magnetic charging bank with a retractable cable, comprising a heat sink 8 and a heat dissipation frame 9. The heat sink 8 is located between the battery cell 2 and the magnetic charging coil 4. The heat dissipation frame 9 is located around the battery cell 2. The heat sink 8 and the heat dissipation frame 9 conduct heat from the battery cell 2 to the outer casing 1 for heat dissipation. The heat sink 8, located between the battery cell 2 and the magnetic charging coil 4, can quickly absorb the heat generated by the battery cell 2 and the charging coil during operation; the heat dissipation frame 9, surrounding the battery cell 2, can comprehensively collect the heat dissipated by the battery cell 2. Together, they efficiently conduct heat to the outer casing 1, and then dissipate it to the outside through the outer casing 1, effectively reducing the operating temperature of the battery cell 2, avoiding performance degradation or safety hazards caused by overheating, and ensuring stable operation of the power bank under long-term use or high load conditions.

[0042] In this embodiment, the charging cable 6 is a flat cable. Compared to traditional round cables, flat cables are less prone to tangling and knotting, allowing for a neater and tighter arrangement when wound around the cable reel assembly 5, reducing storage space and improving ease of loading and unloading. The structure of the flat cable ensures more even stress distribution during repeated bending and stretching, reducing the probability of internal wire breakage and extending its lifespan. The relatively soft and stable texture of the flat cable makes it easy to manage and handle, and prevents it from rolling around when plugging and unplugging devices, improving the user experience.

[0043] In this embodiment, the outer shell 1 is provided with a storage slot 10, and the charging head 7 is snapped into the storage slot 10.

[0044] In this embodiment, the charging head 7 can use a Type-C interface, a Lightning interface, or a MicroUSB interface.

[0045] In this embodiment, the outer casing 1 is provided with a charging interface 11 that is connected to the circuit board 3. The charging interface 11 can be a Type-C interface.

[0046] In this embodiment, the outer casing 1 is provided with a switch 12 connected to the circuit board 3 for controlling whether charging is enabled.

[0047] In this embodiment, the outer casing 1 includes a bottom shell 14, a connecting frame 15, and a top shell 16. The bottom shell 14 and the top shell 16 are snapped together, and one end of the bottom shell 14 and the top shell 16 forms a mounting groove that matches the connecting frame 15. The connecting frame 15 is snapped into the mounting groove. The storage slot 10, the charging interface 11, and the power switch 12 are all located on the connecting frame 15. The snap-fit ​​connection between the bottom shell 14 and the top shell 16, and the snap-fit ​​connection of the connecting frame 15 into the mounting groove, eliminates the need for complex screws and other fasteners, facilitating rapid assembly during production, improving production efficiency, and reducing assembly costs. The centralized arrangement of the storage slot 10, the charging interface 11, and the power switch 12 on the connecting frame 15 makes the layout of functional components more organized, allowing users to quickly locate the corresponding positions during operation and improving ease of use.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic power bank with a retractable cord, characterized in that, The device includes a housing (1), a battery cell (2), a circuit board (3), a magnetic charging coil (4), a take-up reel assembly (5), a charging cable (6), and a charging head (7). The battery cell (2) is installed inside the housing (1). The circuit board (3) is installed inside the housing (1) and located at the electrical connection end of the battery cell (2). The input end of the circuit board (3) is electrically connected to the battery cell (2), and the output end of the circuit board (3) is electrically connected to the magnetic charging coil (4). The magnetic charging coil (4) is installed between the battery cell (2) and the housing (1). The take-up reel assembly (5) is installed inside the housing (1) and located at one end of the circuit board (3). The charging cable (6) is retractably wound inside the take-up reel assembly (5). The inner end of the charging cable (6) is electrically connected to the output end of the circuit board (3), and the outer end of the charging cable (6) extends out of the housing (1) and is connected to the charging head (7).

2. The magnetic charging bank with a retractable cable according to claim 1, characterized in that, The take-up turntable assembly (5) includes a lower turntable body (51), an inner shaft (52), a winding sleeve (53), an upper turntable body (54), a coil spring, and a damping device. The inner shaft (52) is fixed at the center of the lower turntable body (51). The winding sleeve (53) is rotatably mounted on the inner shaft (52). The coil spring is located between the inner shaft (52) and the winding sleeve (53), with one end fixed to the inner shaft (52) and the other end connected to the winding sleeve (53). The upper turntable body (54) is mounted on the lower turntable body (51). The charging cable (6) is wound on the winding sleeve (53) and accommodated between the upper turntable body (54) and the lower turntable body (51). The damping device includes a friction plate and an elastic element. The friction plate cooperates with the winding sleeve (53), and the elastic element applies pressure to the friction plate, so that friction is generated between the friction plate and the winding sleeve (53) to form damping.

3. The magnetic charging bank with a retractable cord according to claim 1, characterized in that, It also includes a heat sink (8) and a heat sink frame (9); the heat sink (8) is located between the battery cell (2) and the magnetic charging coil (4); the heat sink frame (9) is located around the battery cell (2); the heat of the battery cell (2) is conducted to the outer shell (1) for heat dissipation through the heat sink (8) and the heat sink frame (9).

4. The magnetic charging bank with a retractable cable according to claim 1, characterized in that, The charging cable (6) is a flat cable.

5. The magnetic charging bank with a retractable cord according to claim 1, characterized in that, The outer shell (1) is provided with a storage slot (10), and the charging head (7) is snapped into the storage slot (10).

6. The magnetic charging bank with a retractable cable according to claim 1, characterized in that, The charging head (7) adopts a Type-C interface, a Lightning interface, or a Microusb interface.

7. The magnetic charging bank with a retractable cable according to claim 5, characterized in that, The outer casing (1) is provided with a charging interface (11) connected to the circuit board (3), and the charging interface (11) is a Type-C interface.

8. The magnetic charging bank with a retractable cable according to claim 7, characterized in that, The outer casing (1) is provided with an on / off switch (12) connected to the circuit board (3) for controlling whether charging is enabled.

9. The magnetic charging bank with a retractable cable according to claim 8, characterized in that, The outer shell (1) includes a bottom shell (14), a connecting frame (15) and a top shell (16); the bottom shell (14) and the top shell (16) are snapped together, and one end of the bottom shell (14) and the top shell (16) forms an installation groove that is adapted to the connecting frame (15), and the connecting frame (15) is snapped into the installation groove.

10. The magnetic charging bank with a retractable cord according to claim 9, characterized in that, The storage slot (10), charging interface (11) and power switch (12) are all located on the connecting frame (15).

Images