PD fast-charging magnetic-attraction wireless power bank

By designing a detachable upper and lower shell structure and a limiting module, the problem of difficulty in quickly replacing battery cells and lack of clamping in existing magnetic wireless charging devices has been solved, enabling quick disassembly and adjustment of the phone angle, thus improving the user experience.

CN224083230UActive Publication Date: 2026-04-03SHENZHEN LIANXIN MICROELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing magnetic wireless charging devices are difficult to quickly replace battery cells after prolonged use, and the lack of an auxiliary clamping structure causes the phone to shake, affecting the user experience.

Method used

A PD fast charging magnetic wireless power bank was designed, featuring a detachable upper and lower shell structure. Combined with a limiting module and a support frame, it achieves quick disassembly and phone fixation through the cooperation of a sliding half-frame and a clamp. The support frame is angle-adjustable to change the phone's angle.

Benefits of technology

It enables quick removal of the battery cells, enhances the phone's stability, and improves the user experience, especially by allowing the phone to be tilted while charging for easier video viewing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of wireless charging, in particular to a PD fast-charging magnetic-attraction wireless power bank which comprises a lower shell, the upper surface of the lower shell is detachably connected with a main board, the upper surface of the main board is fixedly connected with a PD interface, the upper surface of the lower shell is fixedly connected with a battery cell, the upper surface of the lower shell is connected with an upper shell in a clamped mode, and the upper shell is fixedly connected with the PD interface. According to the wireless charging device, after the sliding half frame slides along the sliding groove, the sliding half frame is separated from the protective shell, the rubber column loses the limiting effect on the other end of the upper shell and the other end of the lower shell, the protective shell can be conveniently detached in the later period, a torsion spring makes contact with a clamping plate, and the wireless charging coil is fixedly connected to the lower surface of the protective shell. The clamping plates have the tendency of clamping the upper shell and can be matched with the clamping plates to fix the mobile phone placed on the upper shell, the limiting effect of the magnets on the mobile phone is improved, and meanwhile the sliding half frame is fixed through the clamping force.
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Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, specifically a PD fast charging magnetic wireless power bank. Background Technology

[0002] Power banks are widely used in daily life as portable power sources, allowing people to charge mobile phones, tablets and other electronic devices anytime and anywhere. They are generally made of lithium batteries or dry batteries as energy storage units, which are convenient and quick to use. However, existing devices have certain drawbacks. For example, the magnetic wireless charger described in announcement number CN219643664U includes a power bank body and a bracket. The bracket is installed on the power bank body, and a wireless charging panel is set on the power bank body. The wireless charging panel is electrically connected to the power bank body.

[0003] The aforementioned device addresses the inconvenience of users holding electronic devices to view information or watch videos by adjusting its own angle. However, after prolonged use, the power bank requires replacement of its internal battery cells. The aforementioned device lacks a quick-release structure, necessitating the use of pry tools and screwdrivers to disassemble the outer casing. Furthermore, the lack of an auxiliary clamping structure means that when the external table shakes, the device and the phone placed on the table will shake synchronously, potentially causing the phone to fall off the device. Utility Model Content

[0004] The purpose of this invention is to provide a PD fast charging magnetic wireless power bank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A PD fast charging magnetic wireless power bank includes a lower shell, a motherboard detachably connected to the upper surface of the lower shell, a PD interface fixedly connected to the upper surface of the motherboard, a battery cell fixedly connected to the upper surface of the lower shell, an upper shell snapped onto the upper surface of the lower shell, and a wireless charging coil fixedly connected to the lower surface of the upper shell.

[0007] The outer surfaces of the upper and lower shells are slidably connected to a protective shell. The outer surface of the protective shell is slidably connected to a limiting module. The limiting module includes a sliding half-frame and a clamping plate. The sliding half-frame is slidably connected to the outer surface of the protective shell, and the clamping plate is movably connected to the inner surface of the sliding half-frame.

[0008] The outer surface of the sliding half-frame is rotatably connected to a support frame.

[0009] Furthermore, a snap-fit ​​frame is fixedly connected to the lower surface of the upper shell, and a magnet is embedded in the lower surface of the upper shell.

[0010] Furthermore, the upper surface of the lower shell is provided with a locking groove, and the motherboard, battery cell, and wireless charging coil are electrically connected.

[0011] Furthermore, a rubber sleeve is nested on the outer surface of the protective shell, and a sliding groove is formed on the outer surface of the protective shell.

[0012] Furthermore, the limiting module also includes a guide bar, a rotating shaft, and a torsion spring. The guide bar is fixedly connected to the inner surface of the sliding half-frame, the rotating shaft is rotatably connected to the inner surface of the sliding half-frame, the clamping plate and the rotating shaft are fixedly connected, and the torsion spring is nested and connected to the outer surface of the rotating shaft. One end of the torsion spring is inserted into the sliding half-frame.

[0013] Furthermore, a connecting column is fixedly connected to the outer surface of the sliding half-frame, the support frame and the connecting column are rotatably connected, and a threaded sleeve is threadedly connected to the outer surface of the connecting column.

[0014] Furthermore, a rubber column is fixedly connected to the inner surface of the support frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. After sliding the half frame along the sliding groove, the half frame separates from the protective shell, and the rubber pillar loses its limiting effect on the upper shell and the other end of the lower shell, making it easier to disassemble the protective shell later. The torsion spring contacts the clamping plate, so that the clamping plate tends to clamp the upper shell. It can work with the clamping plate to fix the mobile phone placed on the upper shell and improve the limiting effect of the magnet on the mobile phone. At the same time, the clamping force fixes the half frame.

[0017] 2. Manually rotate the support frame to support the protective shell. Then rotate the threaded sleeve on the connecting column. The threaded sleeve and the connecting column are threaded together. After rotating the threaded sleeve, the support frame can be fixed. The rubber column increases the friction between the support frame and the external support surface, so that when the device is charging the mobile phone, the device angle can be changed to further change the angle of the mobile phone, making it easier to play videos and optimizing the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the protective shell structure of this utility model;

[0020] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the disassembled upper and lower shell structure of this utility model.

[0022] In the diagram: 1. Upper shell; 101. Snap-fit ​​frame; 102. Magnet; 103. Wireless charging coil; 2. Lower shell; 201. Snap-fit ​​slot; 202. Mainboard; 203. Battery cell; 204. PD interface; 3. Protective shell; 301. Rubber sleeve; 302. Sliding groove; 4. Limiting module; 401. Sliding half frame; 402. Guide strip; 403. Clamping plate; 404. Rotating shaft; 405. Torsion spring; 406. Connecting post; 5. Support frame; 501. Threaded sleeve; 502. Rubber post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figure 1-4 In this embodiment of the utility model, a PD fast charging magnetic wireless power bank includes a lower shell 2, a motherboard 202 detachably connected to the upper surface of the lower shell 2, a PD interface 204 fixedly connected to the upper surface of the motherboard 202, a battery cell 203 fixedly connected to the upper surface of the lower shell 2, an upper shell 1 snapped onto the upper surface of the lower shell 2, and a wireless charging coil 103 fixedly connected to the lower surface of the upper shell 1.

[0025] A protective shell 3 is slidably connected to the outer surfaces of the upper shell 1 and the lower shell 2. A limit module 4 is slidably connected to the outer surface of the protective shell 3. The limit module 4 includes a sliding half-frame 401 and a clamping plate 403. The sliding half-frame 401 is slidably connected to the outer surface of the protective shell 3, and the clamping plate 403 is movably connected to the inner surface of the sliding half-frame 401.

[0026] The outer surface of the sliding half-frame 401 is rotatably connected to the support frame 5.

[0027] Specifically, the PD interface 204, in conjunction with an external charger and motherboard 202, charges the battery cell 203. The battery cell 203, in conjunction with the wireless charging coil 103, charges external devices that support wireless charging. This is existing technology and will not be elaborated further here. The upper shell 1 and lower shell 2 protect the internal electrical components. The protective shell 3 protects the upper shell 1 and lower shell 2, preventing direct contact between the upper shell 1 and lower shell 2 and the outside world. By adjusting the limiting module 4, the charging phone can be fixed in place. It can also assist in the quick release of the device by fixing the protective shell 3 and lower shell 2. By adjusting the support frame 5, the angle of the upper shell 1 can be adjusted, making it convenient to watch videos on the phone while charging.

[0028] Example 1

[0029] like Figure 1-4 As shown, a snap-fit ​​frame 101 is fixedly connected to the lower surface of the upper shell 1, a magnet 102 is embedded in the lower surface of the upper shell 1, a snap-fit ​​groove 201 is opened on the upper surface of the lower shell 2, and the main board 202, the battery cell 203 and the wireless charging coil 103 are electrically connected.

[0030] In this embodiment, the upper shell 1 and the lower shell 2 are engaged by the snap-fit ​​frame 101 and the snap-fit ​​groove 201. The protective shell 3 contacts the upper shell 1 and the lower shell 2, preventing vertical displacement of the upper shell 1 and the lower shell 2. Based on this, the protective shell 3 can be slid horizontally to separate the protective shell 3 from the upper shell 1 and the lower shell 2, making it easy to separate the upper shell 1 and the lower shell 2 and repair the internal components of the lower shell 2, thus achieving quick disassembly of the device.

[0031] like Figure 1-4 As shown, a rubber sleeve 301 is nested on the outer surface of the protective shell 3, and a sliding groove 302 is provided on the outer surface of the protective shell 3. The guide strip 402 is fixedly connected to the inner surface of the sliding half frame 401.

[0032] In this embodiment, the rubber sleeve 301 increases the protection of the corners of the protective shell 3, and the sliding groove 302 is used to guide the movement of the limiting module 4 in conjunction with the guide strip 402.

[0033] Example 2

[0034] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to fix the movable limiting module 4 in Embodiment 1.

[0035] like Figure 1-4 As shown, the limiting module 4 also includes a guide bar 402, a rotating shaft 404 and a torsion spring 405. The rotating shaft 404 is rotatably connected to the inner surface of the sliding half frame 401. The clamping plate 403 is fixedly connected to the rotating shaft 404. The torsion spring 405 is nested and connected to the outer surface of the rotating shaft 404. One end of the torsion spring 405 is inserted into the sliding half frame 401.

[0036] In this embodiment, after sliding the sliding half-frame 401 along the sliding groove 302, the sliding half-frame 401 and the protective shell 3 are separated, and the rubber column 502 loses its limiting effect on the upper shell 1 and the other end of the lower shell 2, making it easier to disassemble the protective shell 3 later. The torsion spring 405 and the clamping plate 403 come into contact, so that the clamping plate 403 has a tendency to clamp the upper shell 1. It can work with the clamping plate 403 to fix the mobile phone placed on the upper shell 1 and improve the limiting effect of the magnet 102 on the mobile phone. At the same time, the sliding half-frame 401 is fixed by this clamping force.

[0037] like Figure 1-4As shown, a connecting column 406 is fixedly connected to the outer surface of the sliding half-frame 401, the support frame 5 and the connecting column 406 are rotatably connected, a threaded sleeve 501 is threadedly connected to the outer surface of the connecting column 406, and a rubber column 502 is fixedly connected to the inner surface of the support frame 5.

[0038] In this embodiment, the support frame 5 is manually rotated to support the protective shell 3. Then, the threaded sleeve 501 on the connecting post 406 is rotated. The threaded sleeve 501 and the connecting post 406 are threadedly connected. After rotating the threaded sleeve 501, the support frame 5 can be fixed. The rubber post 502 increases the friction between the support frame 5 and the external support surface, so that when the device charges the mobile phone, the device angle can be changed to further change the mobile phone angle, making it easier for the mobile phone to play videos and optimizing the user experience.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PD fast charging magnetic wireless power bank, comprising a lower shell (2), the upper surface of the lower shell (2) is detachably connected with a mainboard (202), the upper surface of the mainboard (202) is fixedly connected with a PD interface (204), the upper surface of the lower shell (2) is fixedly connected with a battery core (203), the upper surface of the lower shell (2) is clampingly connected with an upper shell (1), the lower surface of the upper shell (1) is fixedly connected with a wireless charging coil (103); characterized in that The outer surface of the upper shell (1) and the lower shell (2) is slidingly connected with a protective shell (3), the outer surface of the protective shell (3) is slidingly connected with a limiting module (4), the limiting module (4) comprises: A sliding half frame (401) slidingly connected to the outer surface of the protective shell (3); A clamping plate (403) movably connected to the inner surface of the sliding half frame (401); The outer surface of the sliding half frame (401) is rotatably connected with a support frame (5).

2. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The lower surface of the upper shell (1) is fixedly connected with a clamping frame (101), and the lower surface of the upper shell (1) is embeddedly connected with a magnet (102).

3. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The upper surface of the lower shell (2) is provided with a clamping groove (201), and the mainboard (202), the battery core (203) and the wireless charging coil (103) are electrically connected.

4. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The outer surface of the protective shell (3) is nestedly connected with a rubber sleeve (301), and the outer surface of the protective shell (3) is provided with a sliding groove (302).

5. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The limiting module (4) further comprises: A guide bar (402) fixedly connected to the inner surface of the sliding half frame (401); A rotating shaft (404) rotatably connected to the inner surface of the sliding half frame (401), the clamping plate (403) and the rotating shaft (404) are fixedly connected; A torsion spring (405) nestedly connected to the outer surface of the rotating shaft (404), one end of the torsion spring (405) is inserted into the sliding half frame (401).

6. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The outer surface of the sliding half frame (401) is fixedly connected with a connecting column (406), the support frame (5) and the connecting column (406) are rotatably connected, and the outer surface of the connecting column (406) is threadedly connected with a threaded sleeve (501).

7. The PD fast charging magnetic attraction wireless power bank of claim 1, wherein, The inner surface of the support frame (5) is fixedly connected with a rubber column (502).

Citation Information

Patent Citations

  • Magnetic wireless charger

    CN219643664U