Charger with wireless charging reception function

By integrating a wireless charging receiver coil and a foam buffer layer into the charger, the problem of the charger having only one power supply method is solved, realizing a wireless power supply mode, improving ease of use and signal stability, and adapting to diverse usage scenarios.

CN224596219UActive Publication Date: 2026-08-04SHENZHEN NINGXIN JULI TECHNICAL SERVICE CO LTD
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Patent Information

Application Number
CN202521530992.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2026-08-04
Estimated Expiration
2035-07-18

AI Technical Summary

Technical Problem

Existing chargers rely on a single power supply method, which limits their use cases and makes the cables prone to tangling and damage, resulting in a poor user experience.

Method used

A charger with wireless charging receiver function was designed. The wireless charging receiver coil is integrated into the bottom of the circuit board. Combined with a foam buffer layer and a precise positioning structure, it realizes the wireless power supply mode. The user operation convenience is improved by conductive sheet group and marking groove.

Benefits of technology

It achieves wireless power supply mode, improves ease of use and device compatibility, ensures stable transmission of charging signals, avoids thermal damage to circuit components caused by coil heating, and adapts to diverse usage scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of electronic products especially is the charger with wireless charging receiving function. Including the charger main part, the charger main part includes the main body face shell, is provided with the circuit board in the inside of main body face shell, the bottom integration of circuit board has wireless charging receiving coil. The utility model discloses through the integration wireless charging receiving coil in the bottom of circuit board, realizes wireless power supply mode, need not use the charging line charging, significantly promotes the use convenience, the foam buffer layer effectively absorbs the vibration, guarantees wireless charging signal stable transmission, while the heat influence of isolation wireless charging receiving coil heating to circuit element, the fence and the identification groove cooperate and ensure that wireless charging receiving coil accurate positioning, and the user can identify the charging area through the recess, and the integrated design of wireless charging receiving coil and circuit board gives consideration to space utilization rate and function fusion, makes traditional battery charger upgrade to multi-mode power supply equipment, satisfies the diversified use scene demand.
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Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, specifically a charger with wireless charging receiver function. Background Technology

[0002] An AA or AAA battery charger is a device specifically designed for charging AA and AAA batteries. It is compatible with mainstream rechargeable battery types such as nickel-metal hydride and nickel-cadmium. Its core function is to achieve safe and efficient energy replenishment through intelligent charging management.

[0003] Currently, most traditional chargers on the market use a charging interface in conjunction with a charging cable for charging. This relies on wired charging, which limits the usage scenarios and makes the cables prone to tangling and damage. The single power supply method cannot be compatible with wireless charging needs, resulting in a poor user experience and unsatisfactory performance.

[0004] Therefore, we proposed a charger with wireless charging receiver functionality to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a charger with wireless charging receiver functionality, thus solving the problem of a single power supply method mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A charger with wireless charging receiver function includes a charger body, the charger body includes a main body shell, the main body shell has a circuit board inside, and the bottom of the circuit board integrates a wireless charging receiver coil.

[0010] Furthermore, the bottom of the circuit board is also provided with foam that separates it from the wireless charging receiving coil.

[0011] Furthermore, a main body bottom shell is fixedly installed on the bottom of the main body shell by screws, and a silicone pad for covering the screws is provided on the bottom of the main body bottom shell.

[0012] Furthermore, the top of the main body shell is provided with a barrier corresponding to the wireless charging receiving coil.

[0013] Furthermore, the top of the main body shell is provided with several crisscrossing reinforcing ribs.

[0014] Furthermore, the top of the main body shell is provided with several battery slots, and the top of the circuit board is integrated with a group of conductive sheets that are the same number as the number of battery slots.

[0015] Furthermore, the conductive sheet assembly includes metal springs and anti-slip metal sheets located at both ends of the battery slot.

[0016] Furthermore, the bottom of the main body shell is also provided with an identification groove corresponding to the wireless charging receiving coil.

[0017] Furthermore, a cover is movably provided on the top of the main body shell.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a charger with wireless charging receiver function, which has the following advantages:

[0020] This invention integrates a wireless charging receiver coil at the bottom of the circuit board, enabling wireless power supply without the need for a charging cable, significantly improving ease of use. The foam buffer layer effectively absorbs vibration, ensuring stable transmission of the wireless charging signal, while also isolating the heat generated by the wireless charging receiver coil from the thermal effects on circuit components. The enclosure and marking groove work together to ensure accurate positioning of the wireless charging receiver coil, allowing users to quickly identify the charging area through the groove. The integrated design of the wireless charging receiver coil and the circuit board balances space utilization and functional integration, upgrading the traditional battery charger into a multi-mode power supply device to meet the needs of diverse usage scenarios. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the charger of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the charger of this utility model;

[0023] Figure 3 This is a schematic diagram of the wireless charging receiving coil structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the main body bottom shell structure of this utility model.

[0025] In the diagram: 1. Charger body; 11. Main body shell; 12. Circuit board; 13. Wireless charging receiver coil; 14. Foam; 15. Main body bottom shell; 151. Silicone pad; 152. Enclosure; 153. Reinforcing rib; 16. Battery slot; 17. Conductive sheet assembly; 171. Metal spring; 172. Anti-slip metal sheet; 18. Marking slot; 19. Face cover. Detailed Implementation

[0026] 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.

[0027] Example

[0028] like Figure 1-4 As shown, a charger with wireless charging receiving function proposed in one embodiment of the present invention includes a charger body 1. The charger body 1 includes a main body shell 11. A circuit board 12 is disposed inside the main body shell 11. A wireless charging receiving coil 13 is integrated at the bottom of the circuit board 12. A charging cable is also disposed on one side of the main body shell 11. One end of the charging cable is electrically connected to the circuit board 12.

[0029] By integrating the wireless charging receiver coil 13 into the bottom of the circuit board 12, the traditional battery charger and wireless charging functions are combined, allowing users to freely choose between wired or wireless power supply modes, thus improving device compatibility and ease of use.

[0030] like Figure 3-4 As shown, in some embodiments, the bottom of the circuit board 12 is also provided with foam 14 that separates it from the wireless charging receiving coil 13.

[0031] Foam 14, as a buffer medium, can reduce the transmission of mechanical vibration between the coil and the circuit board 12. Its electromagnetic shielding characteristics suppress high-frequency interference, ensure the stability of wireless charging signals, and at the same time avoid thermal damage to circuit components caused by coil heating. The elastic structure of foam 14 absorbs assembly tolerances and maintains the distance between the coil and the circuit board 12.

[0032] like Figure 2-4 As shown, in some embodiments, the bottom of the main body shell 11 is fixedly mounted with a main body bottom shell 15 by screws, and the bottom of the main body bottom shell 15 is provided with a silicone pad 151 for covering the screws.

[0033] The silicone pad 151 conceals the screw holes, enhancing the overall appearance. The bottom of the silicone pad 151 is horizontally lower than the main body shell 15, while its anti-slip properties enhance the stability of the charger. The silicone material is wear-resistant and does not easily deform over long-term use. After the screws fix the main body shell 15, the silicone pad 151 is pressed into the screw holes, achieving both physical sealing and aesthetics.

[0034] like Figure 4 As shown, in some embodiments, the top of the main body shell 15 is provided with a barrier 152 corresponding to the wireless charging receiving coil 13.

[0035] The enclosure 152 structure precisely positions the wireless charging receiver coil 13 to prevent it from shifting and improve assembly stability.

[0036] like Figure 4 As shown, in some embodiments, the top of the main body shell 15 is also provided with a number of intersecting reinforcing ribs 153.

[0037] The crisscrossing reinforcing ribs 153 significantly improve the compressive strength of the main body shell 15, preventing damage to internal components due to deformation caused by external forces. It is especially suitable for high-load scenarios with multiple battery slots 16. The reinforcing ribs 153 disperse stress, and their grid layout takes into account both lightweight and structural rigidity requirements.

[0038] like Figure 1 As shown, in some embodiments, the top of the main body shell 11 is provided with a plurality of battery slots 16, and the top of the circuit board 12 is integrated with a conductive sheet group 17 in the same number as the battery slots 16. In some embodiments, the conductive sheet group 17 includes a metal spring sheet 171 and an anti-slip metal sheet 172 located at both ends of the battery slots 16 respectively.

[0039] The anti-slip metal sheet 172 has several protrusions on one side. The modular design supports multi-battery charging and is compatible with different battery specifications (such as AA / AAA), improving space utilization. The metal spring 171 adapts to the battery length difference to ensure contact reliability. The anti-slip metal sheet 172 prevents the battery from loosening during charging by increasing friction.

[0040] like Figure 2-3 As shown, in some embodiments, the bottom of the main body shell 15 is also provided with an identification groove 18 corresponding to the wireless charging receiving coil 13.

[0041] By marking the wireless charging area with grooves, users are guided to place their devices correctly to optimize charging efficiency, while also improving product visibility.

[0042] like Figure 1 As shown, in some embodiments, a face cover 19 is movably disposed on the top of the main body shell 11.

[0043] The cover 19 uses a flip-top or sliding opening mechanism to protect the battery compartment 16 from dust contamination. The opening and closing design facilitates battery replacement, and the hinge or snap-fit ​​structure ensures durability.

[0044] In summary, by integrating the wireless charging receiver coil 13 at the bottom of the circuit board 12, a wireless power supply mode is achieved, eliminating the need for a charging cable and significantly improving ease of use. The foam buffer layer 14 effectively absorbs vibrations, ensuring stable transmission of the wireless charging signal, while also isolating the heat generated by the wireless charging receiver coil 13 from the thermal impact on the circuit components. The enclosure 152 and the marking groove 18 work together to ensure accurate positioning of the wireless charging receiver coil 13, allowing users to quickly identify the charging area through the groove. The integrated design of the wireless charging receiver coil 13 and the circuit board 12 balances space utilization and functional integration, upgrading the traditional battery charger into a multi-mode power supply device to meet the needs of diverse usage scenarios.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A charger with wireless charging receiver function, comprising a charger body (1), characterized in that: The charger body (1) includes a main body shell (11), and a circuit board (12) is provided inside the main body shell (11). A wireless charging receiving coil (13) is integrated at the bottom of the circuit board (12). The top of the main body shell (11) is provided with a number of battery slots (16), and the top of the circuit board (12) is integrated with a conductive sheet group (17) with the same number of battery slots (16); the conductive sheet group (17) includes metal springs (171) and anti-slip metal sheets (172) located at both ends of the battery slots (16).

2. The charger with wireless charging receiver function according to claim 1, characterized in that: The bottom of the circuit board (12) is also provided with foam (14) between it and the wireless charging receiving coil (13).

3. The charger with wireless charging receiver function according to claim 1, characterized in that: The bottom of the main body shell (11) is fixedly installed with a main body bottom shell (15) by screws, and a silicone pad (151) for covering the screws is provided on the bottom of the main body bottom shell (15).

4. The charger with wireless charging receiver function according to claim 3, characterized in that: The top of the main body shell (15) is provided with a enclosure (152) corresponding to the wireless charging receiving coil (13).

5. The charger with wireless charging receiver function according to claim 3, characterized in that: The top of the main body shell (15) is also provided with several intersecting reinforcing ribs (153).

6. The charger with wireless charging receiver function according to claim 3, characterized in that: The bottom of the main body shell (15) is also provided with an identification groove (18) corresponding to the wireless charging receiving coil (13).

7. The charger with wireless charging receiver function according to claim 1, characterized in that: The top of the main body shell (11) is movably provided with a cover (19).