# US 12,119,168 B2 · Wireless power-charging module

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,119,168 B2
- Document ID: US12119168B2
- Status: Granted
- Kind: B2
- Application number: 18/192,187
- Filed: 2023-03-29
- Published: 2024-07-11
- Granted: 2024-10-15
- Earliest claimed: 2023-03-29
- Assignees: Delta Electronics, Inc.
- Applicants: Delta Electronics, Inc.
- Inventors: Yu-Chun Lai; Chun-Ching Yen; Huai-Pei Tung
- Web page: https://patentgrep.com/patent/US12119168B2

## CPC

- H01F 38/14: Inductive couplings
- H01F 3/10: Composite arrangements of magnetic circuits
- H01F 27/36: Electric or magnetic shields or screens (movable for varying inductance H01F21/10)
- H02J 50/005: {Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices}
- H02J 50/10: using inductive coupling
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

A wireless power-charging module is provided, including a magnetic core, a coil, and a magnetic glue, wherein a gap is formed between the magnetic core and the coil. The coil and the magnetic glue are disposed on the surface of the magnetic core, wherein the magnetic glue fills the gap between the magnetic core and the coil.

## Claims

### Claim 1

A wireless power-charging module, comprising:
a magnetic core;
a coil, disposed on a surface of the magnetic core; and
a magnetic glue, disposed on the surface of the magnetic core and used to fill in a gap between the magnetic core and the coil.

### Claim 2 (depends on 1)

The wireless power-charging module as claimed in claim 1, wherein the magnetic core has a protrusion at the center of the magnetic core, an annular wall, and an annular recess formed between the wall and the protrusion.

### Claim 3 (depends on 2)

The wireless power-charging module as claimed in claim 2, wherein the protrusion forms a through hole.

### Claim 4 (depends on 2)

The wireless power-charging module as claimed in claim 2, wherein the magnetic core further has an opening formed on the wall, and the coil extends through the opening.

### Claim 5 (depends on 2)

The wireless power-charging module as claimed in claim 2, wherein the surface is a bottom surface of the recess, and the magnetic glue is spread over the entire bottom surface.

### Claim 6 (depends on 2)

The wireless power-charging module as claimed in claim 2, wherein the surface is the bottom surface of the recess, and the magnetic glue extends from the bottom surface to a lateral surface of the recess, wherein the lateral surface is adjacent to the bottom surface.

### Claim 7 (depends on 6)

The wireless power-charging module as claimed in claim 6, wherein the magnetic glue is spread over the entire lateral surface.

### Claim 8 (depends on 1)

The wireless power-charging module as claimed in claim 1, wherein the magnetic core has a flat structure that forms a through hole, and the coil surrounds the through hole.

### Claim 9 (depends on 1)

The wireless power-charging module as claimed in claim 1, wherein the magnetic glue comprises ferrite, ferrite alloy, amorphous alloy, or nanocrystalline alloy.

### Claim 10 (depends on 1)

The wireless power-charging module as claimed in claim 1, wherein the coil comprises a planar coil.