IP Library Granted Patent US 12,640,595
Granted Patent B2
US 12,640,595 · App. 18/084,125 · Granted May 26, 2026

Wireless charging assembly with magnetically-isolated attachment structure when providing charge and electronic device having the same

Inventors: Bo-Duo Yuan (Shenzhen, CN); Yan-Lei Cao (Zhengzhou, CN); Hao-Xiang Li (Zhengzhou, CN)
Assignees: Zhengzhou Wanmayun Electronic Technology CO. , Ltd; HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.; HON HAI PRECISION INDUSTRY CO., LTD.
H02J50/70H01F27/366H02J50/005H02J50/10
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,640,595
App. No.
18/084,125
Filed
Dec 19, 2022
Granted
May 26, 2026
Kind
B2
Art Unit
2859
USPC
320/109
Abstract

A magnetically-isolated wireless charging assembly enabling temporary attachment by magnetism to a device requiring charge by induction includes a housing defining an accommodating space, a plurality of magnetic members disposed within the accommodating space, a wireless charging receiver covering the plurality of magnetic members, and a wireless charging receiver. The wireless charging receiver is disposed on a side of the magnetic shielding member facing the plurality of magnetic members and the magnetic shielding member prevents the magnetic field of the magnetic members extending through or beyond the shielding member.

Claims (33)

1 . A wireless charging assembly comprising:

a housing defining an accommodating space;

a plurality of magnetic members;

a magnetic shielding member; and

a wireless charging receiver;

wherein the plurality of magnetic members is arranged within the accommodating space, the magnetic shielding member covers the plurality of magnetic members, the wireless charging receiver is disposed on a side of the magnetic shielding member facing the plurality of magnetic members,

wherein the housing comprises a main body and a plurality of first fixing posts connected to the main body, the main body is recessed inwards to form the accommodating space, the plurality of first fixing posts is disposed inside the accommodating space, the magnetic shielding member comprises a central plate and a plurality of mounting parts connected around the central plate, each of the plurality of mounting parts is connected to a respective one of the plurality of first fixing posts.

2 . The wireless charging assembly of claim 1 , wherein the plurality of magnetic members comprises two magnetic members, the two magnetic members are spaced from each other, the wireless charging receiver is arranged between the two magnetic members.

3 . The wireless charging assembly of claim 1 , wherein the housing further comprises a plurality of second fixing posts connected to the main body, the plurality of second fixing posts is disposed around a respective one of the plurality of magnetic members.

4 . The wireless charging assembly of claim 3 , wherein a portion of the plurality of second fixing posts extends toward a side surface of the plurality of magnetic members to form a first clamping part, the first clamping part resists against the side surface of the plurality of magnetic members.

5 . The wireless charging assembly of claim 3 , wherein a portion of the plurality of second fixing posts extends toward a top surface of the plurality of magnetic members to form a second clamping part, the second clamping part resists against the top surface of the plurality of magnetic members.

6 . The wireless charging assembly of claim 3 , further comprising a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the plurality of magnetic members and a bottom of the accommodating space, the second adhesive layer is disposed between the wireless charging receiver and the main body.

7 . The wireless charging assembly of claim 1 , wherein a distance between an edge of the plurality of magnetic members and an edge of the magnetic shielding member is at least 1.5 mm.

8 . The wireless charging assembly of claim 1 , wherein the magnetic shielding member is a silicon steel sheet.

9 . An electronic device comprising:

a cover plate,

an antenna; and

a wireless charging assembly comprising:

a housing defining an accommodating space;

a plurality of magnetic members;

a magnetic shielding member; and

a wireless charging receiver;

wherein the plurality of magnetic member is arranged within the accommodating space, the magnetic shielding member covers the plurality of magnetic members, the wireless charging receiver is disposed on a side of the magnetic shielding member facing the plurality of magnetic members;

wherein the housing comprises a main body and plurality of first fixing posts connected to the main body, the main body is recessed inwards to form the accommodating space, the plurality of first fixing posts is disposed inside the accommodating space, the magnetic shielding member comprises a central plate a plurality of mounting parts connected around the central plate, each of the plurality of mounting parts is connected to a respective one the plurality of first fixing posts;

a portion of the antenna is disposed on another side of the magnetic shielding member opposites to the plurality of magnetic members, the cover plate covers the housing from a side of the antenna.

10 . The electronic device of claim 9 , further comprising a supporting port, wherein the supporting port is arranged between the housing and another portion of the antenna.

11 . The electronic device of claim 9 , wherein the plurality of magnetic members comprises two magnetic members, the two magnetic members are spaced from each other, the wireless charging receiver is arranged between the two magnetic members.

12 . The electronic device of claim 9 , wherein the housing further comprises a plurality of second fixing posts connected to the main body, the plurality of second fixing posts is disposed around each of the plurality of magnetic members.

13 . The electronic device of claim 12 , wherein a portion of the plurality of second fixing posts extends toward a side surface of the plurality of magnetic members to form a first clamping part, the first clamping part resists against the side surface of the plurality of magnetic members.

14 . The electronic device of claim 12 , wherein a portion of the plurality of second fixing posts extends toward a top surface of the plurality of magnetic members to form a second clamping part, the second clamping part resists against the top surface of the plurality of magnetic members.

15 . The electronic device of claim 12 , wherein the wireless charging assembly further comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is disposed between the plurality of magnetic members and the bottom of the accommodating space, the second adhesive layer is disposed between the wireless charging receiver and the main body.

16 . The electronic device of claim 9 , wherein a distance between an edge of the plurality of magnetic members and an edge of the magnetic shielding member is at least 1.5 mm.

17 . The electronic device of claim 9 , wherein the magnetic shielding member is a silicon steel sheet.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2022
From: YUAN, BO-DUO; CAO, YAN-LEI; LI, HAO-XIANG
To: ZHENGZHOU WANMAYUN ELECTRONIC TECHNOLOGY CO.,LTD.; HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO., LTD.; HON HAI PRECISION INDUSTRY CO., LTD.
Reel/Frame 062145/0578 →
Priority Claims (1)
CN 202211175972.5 · Sep 26, 2022 · national
Continuity (1)
Related Publication 20240106282A1 · Mar 28, 2024
References Cited (23)
US 8269595B2 · Okada · 2012 [cited by examiner]
US 8766484B2 · Baarman · 2014 [cited by examiner]
US 8890470B2 · Partovi · 2014 [cited by examiner]
US 9084343B2 · Waffenschmidt · 2015 [cited by examiner]
US 9852844B2 · Golko · 2017 [cited by examiner]
US 9861017B2 · Borngräber · 2018 [cited by examiner]
US 10283998B2 · Hong · 2019 [cited by examiner]
US 10847310B2 · Suzuki · 2020 [cited by examiner]
US 11258308B2 · Jang · 2022 [cited by examiner]
US 11569685B2 · Partovi · 2023 [cited by examiner]
US 11606119B2 · Partovi · 2023 [cited by examiner]
US 11805631B2 · Lee · 2023 [cited by examiner]
US 11923696B2 · Jia · 2024 [cited by examiner]
US 11968816B2 · Jang · 2024 [cited by examiner]
US 11979026B2 · Hsiao · 2024 [cited by examiner]
US 12355270B2 · Lim · 2025 [cited by examiner]
US 20100156344A1 · Inoue · 2010 [cited by examiner]
US 20140177197A1 · Lampinen · 2014 [cited by examiner]
US 20150326055A1 · Koyanagi · 2015 [cited by examiner]
US 20240087803A1 · Spinella · 2024 [cited by examiner]
CN 213937544U · 2021 [cited by applicant]
CN 217063391U · 2022 [cited by examiner]
WO WO2020262976A2 · 2020 [cited by examiner]