# US 12,119,861 B2 · Magnetic housing for mobile device and manufacturing process thereof

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- Number: US 12,119,861 B2
- Document ID: US12119861B2
- Status: Granted
- Kind: B2
- Application number: 17/579,953
- Filed: 2022-01-20
- Published: 2022-09-15
- Granted: 2024-10-15
- Earliest claimed: 2021-03-09
- Assignees: Luxshare Precision Industry Co., Ltd.
- Applicants: Luxshare Precision Industry Company Limited
- Inventors: XianFeng Li; Hua Yi; HongBing Yin; LinBiao Hu
- Web page: https://patentgrep.com/patent/US12119861B2

## CPC

- H04B 1/3888: Arrangements for carrying or protecting transceivers
- B29C 45/14065: {Positioning or centering articles in the mould}
- B29C 45/1418: {the inserts being deformed or preformed, e.g. by the injection pressure}
- H01F 5/00: Coils (superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00)
- H01F 7/0263: {Closures, bags, bands, engagement devices with male and female parts}
- H01F 27/022: {Encapsulation}
- H01F 27/366: {made of ferromagnetic material}
- H01F 38/14: Inductive couplings
- B29L 2031/3431: {Telephones, Earphones}
- H04B: TRANSMISSION
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

The present disclosure provides a magnetic housing for mobile device and a manufacturing process of the magnetic housing. The magnetic housing includes a housing body, an outer sleeve, a magnetic coil, and an inner lining. The housing body comprises a bearing part and a surrounding part. The surrounding part is connected to and intersecting with an outer periphery of the bearing part to form an accommodating space. The accommodating space accommodates a mobile device. The bearing part comprises a groove. The outer sleeve is disposed on a surface of the housing body away from the accommodating space. The magnetic coil is disposed in the groove. The inner lining is disposed on a surface of the housing body close to the accommodating space. The overall thickness of the housing for mobile device would not be increased when magnetic coils are disposed.

## Claims

### Claim 1

A magnetic housing for accommodating a mobile device, comprising:
a housing body comprising a bearing part and a surrounding part, the surrounding part being connected to and intersecting with an outer periphery of the bearing part to form an accommodating space, the bearing part comprising a groove;
an outer sleeve disposed on a surface of the housing body away from the accommodating space;
a magnetic coil disposed in the groove, comprising a coil and a magnetic body; and
an inner lining disposed on a surface of the housing body close to the accommodating space.

### Claim 2 (depends on 1)

The magnetic housing according to claim 1, wherein the groove is disposed on a surface of the bearing part close to the accommodating space; and the inner lining covers the magnetic coil.

### Claim 3 (depends on 1)

The magnetic housing according to claim 1, wherein the flexibility of the outer sleeve is greater than the flexibility of the housing body; and the hardness of the outer sleeve is less than the hardness of the housing body.

### Claim 4 (depends on 1)

The magnetic housing according to claim 1, wherein the outer sleeve comprises a liquid-to-solid molded silicone; and the housing body comprises a polycarbonate.

### Claim 5 (depends on 1)

The magnetic housing according to claim 1, wherein the inner lining comprises a hot-pressed flannel.

### Claim 6 (depends on 1)

The magnetic housing according to claim 1, wherein the outer sleeve is disposed on a surface of the bearing part away from the accommodating space.

### Claim 7 (depends on 6)

The magnetic housing according to claim 6, wherein the outer sleeve is further disposed on a surface of the surrounding part away from the accommodating space; and the outer sleeve covers one end of the surrounding part away from the bearing part.

### Claim 8 (depends on 1)

The magnetic housing according to claim 1, wherein the inner lining is disposed on a surface of the bearing part close to the accommodating space.

### Claim 9 (depends on 8)

The magnetic housing according to claim 8, wherein the inner lining is disposed on a surface of the surrounding part close to the accommodating space.

### Claim 10 (depends on 1)

The magnetic housing according to claim 1, wherein the bearing part comprises a first opening; the outer sleeve comprises a first through hole disposing part corresponding to the first opening; and the first through hole disposing part comprises a first through hole.

### Claim 11 (depends on 10)

The magnetic housing according to claim 10, wherein the first through hole disposing part is embedded in the first opening.

### Claim 12 (depends on 10)

The magnetic housing according to claim 10, wherein the surrounding part comprises a second opening; the outer sleeve comprises a second through hole disposing part corresponding to the second opening; and the second through hole disposing part comprises a second through hole.

### Claim 13 (depends on 12)

The magnetic housing according to claim 12, wherein the second through hole disposing part is embedded in the second opening.

### Claim 14 (depends on 12)

The magnetic housing according to claim 12 comprising a pressing member, the pressing member being engaged with the outer sleeve and being disposed in the second through hole.

### Claim 15 (depends on 1)

The magnetic housing according to claim 1, wherein the surrounding part comprises a second opening; the outer sleeve comprises a second through hole disposing part corresponding to the second opening; and the second through hole disposing part comprises a second through hole.

### Claim 16 (depends on 1)

The magnetic housing according to claim 1, wherein the housing body is injection molded, and the outer sleeve is formed on the housing body by solid silicone formed by liquid silicone in a liquid-to-solid molding manner.

### Claim 17 (depends on 1)

The magnetic housing according to claim 1, wherein a silicone treatment agent is coated on the surface of the housing body away from the accommodating space.
