Magnetic portable power supply
By incorporating a moving plate and a limiting plate structure on the magnetic portable power bank, and using springs and a drive mechanism to buffer the contact with the mobile phone, the problem of hard contact collisions and friction damage is solved, achieving more stable charging and interface protection.
Patent Information
- Application Number
- CN202521730736.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-14
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-08-14
AI Technical Summary
Magnetic power banks can cause hard contact and collision when they are attached to a mobile phone, and the magnetic surface is prone to friction, resulting in damage and scratches.
The design incorporates movable plates and limiting plates on both sides of the power bank body. Springs and drive mechanisms are used to achieve buffering and limiting, preventing hard contact, and the interface is protected by a protective mechanism.
It effectively prevents damage from hard contact collisions and friction between the mobile phone and the power bank, reduces charging interruptions, and protects the interface from damage.
Smart Images
Figure CN224935395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile power technology, specifically a magnetic portable mobile power bank. Background Technology
[0002] A portable power bank is a portable charger that can be carried by an individual and stores its own electrical energy. It is mainly used to charge consumer electronic products such as handheld mobile devices, especially in situations where there is no external power supply. Magnetic wireless charging power banks refer to devices with built-in batteries that obtain power through wireless induction for charging. Wireless charging technology originates from wireless power transmission technology. Its working principle utilizes electromagnetic principles. When current passes through a coil, a magnetic field is generated, which in turn forms a voltage. With voltage, current is generated, and with current, charging can be achieved.
[0003] For example, the magnetic power bank with announcement number CN218498855U features a support frame that is rotated and set inside a rectangular frame. When in use, it is opened from inside the rectangular frame through a notch, and when not in use, it is stored in the rectangular frame to prevent it from being opened by external objects, making the device simple and beautiful overall. The magnetic base plate is bolted to the shell, making disassembly and assembly convenient and quick. The magnetic base plate can be removed with bolts, which facilitates the maintenance of the internal components of the shell.
[0004] In the above-mentioned magnetic power bank, the magnetic base plate on one side of the phone is used to wirelessly charge the phone. However, when the phone and the magnetic power bank are attached, they will make hard contact and collision. Long-term collision can affect the internal components of the phone and the magnetic power bank. When the magnetic power bank is attached to the back of the phone, the palm of the hand can easily squeeze the edge of the magnetic power bank when holding the phone, causing the magnetic power bank to move and resulting in interruption of charging. It can also cause the magnetic surface of the power bank to rub against the back of the phone, resulting in scratches on both the magnetic power bank and the back of the phone. Moreover, when the magnetic surface of the power bank is placed on a table, it is also easy for the magnetic surface to rub against the table. Utility Model Content
[0005] The purpose of this invention is to provide a magnetic portable power bank to solve the problems mentioned in the background art, such as the hard contact collision that occurs when the existing magnetic power bank is attached to the mobile phone, and the friction that easily occurs on the magnetic surface of the magnetic power bank.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnetic portable power bank, comprising a power bank body and a rack plate, wherein a magnetic ring is fixedly installed on one side of the power bank body, and an interface is installed on the other side of the power bank body; a fixing plate is fixedly connected to both sides of the power bank body, a movable plate is slidably connected to the top of the fixing plate, a telescopic mechanism is provided at the bottom of the movable plate, a limit plate is provided on one side of the movable plate, the outer side of the limit plate slides against the fixing plate, and a driving mechanism is provided on one side of the limit plate; a connecting box is fixedly connected to the side of the power bank body near the interface, and a protective mechanism is provided inside the connecting box.
[0007] Furthermore, the telescopic mechanism includes a rack rod fixedly connected to one side of the movable plate, one end of the rack rod abutting against a spring a, one end of the spring a abutting against the inner side of the fixed plate, a guide rod slidably connected inside the fixed plate, and one end of the guide rod fixed to the movable plate, and a groove matching the guide rod is opened inside the fixed plate, the guide rod and the fixed plate forming a sliding structure.
[0008] Furthermore, multiple sets of guide rods and rack rods are provided on one side of the moving plate, and the multiple sets of guide rods and rack rods are distributed at equal intervals.
[0009] Furthermore, the driving mechanism includes a rack plate fixedly connected to one side of the limiting plate, a gear meshing with one side of the rack plate, and the two sides of the gear being rotatably connected to the fixed plate via a rotating shaft. The outer side of the gear meshes with the rack rod.
[0010] Furthermore, one side of the limiting plate is arc-shaped, and the rack rod, gear and rack plate form a meshing transmission structure. The inside of the fixed plate is provided with a telescopic groove that matches the limiting plate, and the limiting plate and the fixed plate form a sliding structure.
[0011] Furthermore, the protective mechanism includes a stop block that is slidably connected inside the connecting box, and one side of the stop block is wedge-shaped. A spring b is fixedly connected to one side of the stop block, and one end of the spring b is fixed to the connecting box. One side of the stop block is slidably connected to the power bank body through a ball bearing, and the other side of the stop block is slidably connected to the inner wall of the connecting box through a ball bearing. The connecting box and the stop block form a sliding structure.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This magnetic portable power bank has movable plates on both sides of the power bank body. The movable plates will first contact the back of the mobile phone and buffer the mobile phone under the action of spring a, preventing the mobile phone from directly impacting and colliding with the magnetic ring and the power bank body under the action of magnetic force, which would cause damage to both. Furthermore, under the action of the driving mechanism, two sets of limiting plates will move out in conjunction, thereby limiting the power bank body and preventing it from moving. The protective mechanism can protect the interface on one side of the power bank body.
[0013] 1. When the power bank body is magnetically attached to the phone, the back of the phone will first contact the moving plates on both sides of the fixing plate. The moving plates will drive the rack rod to compress the spring a at one end. The elastic force of spring a can buffer the phone and prevent the back of the phone from making hard contact impact with the power bank body. When the rack rod moves, it will also drive the limiting plate to move out of the interior of the fixing plate through the drive structure and contact the sides of the phone, thereby limiting the power bank body.
[0014] 2. Before the external cable connector is inserted into the interface, it will first contact the inclined surfaces of the two sets of blocks, causing the two sets of blocks to move and separate. At this time, the connector can be inserted into the interface. When the connector is removed, spring b will reset and push the two sets of blocks to merge, thereby shielding and protecting one side of the interface. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the portable power bank body of this utility model; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixing plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the movable plate of this utility model; Figure 5 This utility model Figure 2 Enlarged view of point A; Figure 6 This is a three-dimensional structural diagram of the stop block of this utility model.
[0016] In the diagram: 1. Power bank body; 2. Magnetic ring; 3. Interface; 4. Fixing plate; 5. Moving plate; 6. Rack rod; 7. Spring a; 8. Gear; 9. Rack plate; 10. Limiting plate; 11. Guide rod; 12. Connecting box; 13. Stop block; 14. Spring b. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1: Please refer to Figures 1-3 The present invention provides the following technical solution: a magnetic portable power bank, comprising a power bank body 1 and a rack plate 9, wherein a magnetic ring 2 is fixedly installed on one side of the power bank body 1 and an interface 3 is installed on the other side of the power bank body 1; a fixing plate 4 is fixedly connected to both sides of the power bank body 1, a movable plate 5 is slidably connected to the top of the fixing plate 4, a telescopic mechanism is provided at the bottom of the movable plate 5, a limiting plate 10 is provided on one side of the movable plate 5, the outer side of the limiting plate 10 slides with the fixing plate 4, and a driving mechanism is provided on one side of the limiting plate 10; Please see Figures 3-4 The telescopic mechanism includes a rack 6 fixedly connected to one side of the movable plate 5. One end of the rack 6 abuts against a spring a7, and one end of the spring a7 abuts against the inner side of the fixed plate 4. A guide rod 11 is slidably connected inside the fixed plate 4, and one end of the guide rod 11 is fixed to the movable plate 5. A groove matching the guide rod 11 is opened inside the fixed plate 4. The guide rod 11 and the fixed plate 4 form a sliding structure. Multiple sets of guide rods 11 and rack 6 are arranged on one side of the movable plate 5, and the multiple sets of guide rods 11 and rack 6 are equidistantly distributed. Please see Figures 3-4 The driving mechanism includes a rack plate 9 fixedly connected to one side of the limiting plate 10, a gear 8 meshing with one side of the rack plate 9, and the two sides of the gear 8 being rotatably connected to the fixed plate 4 via a rotating shaft. The outer side of the gear 8 meshes with the rack rod 6. One side of the limiting plate 10 is arc-shaped, and the rack rod 6, the gear 8 and the rack plate 9 form a meshing transmission structure. The fixed plate 4 has a telescopic groove inside that matches the limiting plate 10, and the limiting plate 10 and the fixed plate 4 form a sliding structure.
[0019] Please see Figures 1-4This magnetic portable power bank, when attached to the back of a mobile phone, works by bringing the magnetic ring 2 on one side of the power bank body 1 close to the back of the phone. The back of the phone first contacts the movable plates 5 on both sides of the fixing plate 4. When the magnetic ring 2 is attached to the phone, the phone presses against the movable plates 5, causing the movable plates 5 to move multiple sets of rack rods 6 on one side. The rack rods 6 then press against the spring a7 at one end. When the movable plates 5 are completely inside the fixing plate 4, the magnetic ring 2 contacts the back of the phone, thus attaching the power bank body 1 to the back of the phone. In this way, the movable plates 5 and spring a7 cushion the phone, preventing direct hard contact impact between the back of the phone and the power bank body 1, which could damage both the power bank body 1 and the phone. Furthermore, when the magnetic ring 2 side of the power bank body 1 is placed on a table, the movable plates 5 replace the magnetic ring 2 in contact with the table, reducing friction between the magnetic ring 2 and the table. Simultaneously, as the rack rod 6 moves, it meshes with the gear 8, causing the gear 8 to rotate. The gear 8 then meshes with the rack plate 9 on one side, causing the rack plate 9 and its side limiting plate 10 to move. This allows the limiting plate 10 to move out of the interior of the fixing plate 4. It should be noted that this power bank is designed according to a specific mobile phone size. Therefore, after the two sets of limiting plates 10 move out, one side will contact the two sides of the mobile phone, thereby limiting the power bank body 1. This prevents the power bank body 1 from being moved by fingers during use, which would cause charging interruption. It also reduces friction scratches between the power bank body 1 and the back of the mobile phone. When it is necessary to separate the power bank body 1 and the mobile phone, in order to prevent them from being too tightly attached and difficult to remove, the rack plate 9 is pressed and moved. Under the action of the driving mechanism, the rack plate 9 will drive the moving plate 5 to move out of the fixing plate 4, thereby pushing the mobile phone out and separating it from the magnetic ring 2, making it easy to remove the mobile phone.
[0020] Example 2: Please see Figure 2 , Figure 5 and Figure 6 Based on Embodiment 1, a protective structure for the interface 3 on one side of the power bank is also disclosed. The specific structure is as follows: a connecting box 12 is fixedly connected to the side of the power bank body 1 near the interface 3, and a protective mechanism is provided inside the connecting box 12. The protective mechanism includes a stop 13 that is slidably connected inside the connecting box 12. One side of the stop 13 is wedge-shaped, and a spring b14 is fixedly connected to one side of the stop 13. One end of the spring b14 is fixed to the connecting box 12. One side of the stop 13 is slidably connected to the power bank body 1 through a ball bearing, and the other side of the stop 13 is slidably connected to the inner wall of the connecting box 12 through a ball bearing. The connecting box 12 and the stop 13 form a sliding structure.
[0021] Please see Figure 2 , Figure 5 and Figure 6This magnetic portable power bank protects the interface 3 by setting multiple sets of connection boxes 12 and blocks 13 on one side of the interface 3. When the external cable connector comes into contact with the inclined surfaces of the two sets of blocks 13, the two sets of blocks 13 will move and separate, and squeeze the spring b14 on one side, so that the interface 3 is exposed. At this time, the connector can be inserted into the interface 3. When the connector is removed, the spring b14 will return to its original position and push the two sets of blocks 13 to contact, thereby blocking and sealing one side of the interface 3 to prevent dust or splashed water droplets from entering the interface 3 and causing damage to the interface 3. In this way, the interface 3 of the power bank can be protected by the above operation, and the blocks 13 will automatically open when the interface 3 needs to be inserted.
[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A magnetic portable power bank, comprising a power bank body (1) and a rack plate (9), wherein a magnetic ring (2) is fixedly installed on one side of the power bank body (1) and an interface (3) is installed on the other side of the power bank body (1). Its features are: The power bank body (1) is fixedly connected to both sides of a fixed plate (4), and a movable plate (5) is slidably connected to the top of the fixed plate (4). A telescopic mechanism is provided at the bottom of the movable plate (5), and a limit plate (10) is provided on one side of the movable plate (5). The outer side of the limit plate (10) slides against the fixed plate (4), and a driving mechanism is provided on one side of the limit plate (10). The connecting box (12) is fixedly connected to the side of the power bank body (1) near the interface (3), and a protective mechanism is provided inside the connecting box (12); The telescopic mechanism includes a rack rod (6) fixedly connected to one side of the movable plate (5), one end of the rack rod (6) abutting against a spring a (7), one end of the spring a (7) abutting against the inner side of the fixed plate (4), a guide rod (11) is slidably connected inside the fixed plate (4), and one end of the guide rod (11) is fixed to the movable plate (5). A sliding groove matching the guide rod (11) is opened inside the fixed plate (4), and the guide rod (11) and the fixed plate (4) form a sliding structure. The protective mechanism includes a stop (13) that is slidably connected inside the connecting box (12), and one side of the stop (13) is wedge-shaped. A spring b (14) is fixedly connected to one side of the stop (13). One end of the spring b (14) is fixed to the connecting box (12). One side of the stop (13) is slidably connected to the mobile power supply body (1) through a ball bearing. The other side of the stop (13) is slidably connected to the inner wall of the connecting box (12) through a ball bearing. The connecting box (12) and the stop (13) form a sliding structure.
2. The magnetic portable power bank according to claim 1, characterized in that: Multiple sets of guide rods (11) and rack rods (6) are provided on one side of the moving plate (5), and the multiple sets of guide rods (11) and rack rods (6) are distributed at equal intervals.
3. The magnetic portable power bank according to claim 1, characterized in that: The driving mechanism includes a rack plate (9) fixedly connected to one side of a limiting plate (10), a gear (8) meshing with one side of the rack plate (9), and the two sides of the gear (8) being rotatably connected to a fixed plate (4) via a rotating shaft. The outer side of the gear (8) meshes with a rack rod (6).
4. A magnetic portable power bank according to claim 1, characterized in that: One side of the limiting plate (10) is arc-shaped. The rack rod (6), gear (8) and rack plate (9) form a meshing transmission structure. The inside of the fixing plate (4) is provided with a telescopic groove that matches the limiting plate (10). The limiting plate (10) and the fixing plate (4) form a sliding structure.