Housing, electronic device using same, and method for making same

Patent metadata

Field	Value
Publication number	US-9788431-B2
Application number	US-201514684990-A
Country	US
Kind code	B2
Filing date	Apr 13, 2015
Priority date	Dec 11, 2014
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A housing includes a metal substrate, an adhesive layer formed on the metal substrate, and a resin film formed on the adhesive layer, the metal substrate, the adhesive layer and the resin film cooperatively form a cavity through a stamping process, an internal structure needed by the housing is formed in the cavity through an injection process, and the internal structure is formed on the resin film.

First claim

What is claimed is:

1. A housing comprising:
a metal substrate;
an adhesive layer formed on the metal substrate, wherein the adhesive layer is made of UV curing paint and has a thickness of between 0.05 mm to 0.1 mm; and
a resin film formed on the adhesive layer, the metal substrate, the adhesive layer and the resin film cooperatively forming a cavity through a stamping process, an internal structure being formed in the cavity through an injection process, and the internal structure being formed on the resin film.

2. The housing as claimed in claim 1 , wherein the metal substrate has a thickness of between 0.4 mm to 0.8 mm.

3. The housing as claimed in claim 1 , wherein the metal film is made of stainless steel, iron, aluminium, aluminium alloy, copper, copper alloy, titanium, titanium alloy, magnesium, or magnesium alloy.

4. The housing as claimed in claim 1 , wherein the resin film is made of polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polymethylmethacrylate or polylactide.

5. The housing as claimed in claim 1 , wherein the resin film is transparent, and has a thickness of between 0.05 mm to 0.2 mm.

6. The housing as claimed in claim 1 , wherein the internal structure is made of polycarbonate, polyethylene terephthalate, polybutylene terephthalate, poly(p-phenylene sulfide) plyamide, polypropylene, acrylonitrile butadiene styrene copolymers, thermoplastic polyurethane, or poly 1,4-cyclohexylene dimethylene terephthalate.

7. A method of making a housing comprising:
providing a metal substrate;
printing an adhesive layer on a surface of the metal substrate;
locating a resin film on a surface of the adhesive layer, and irradiating UV light on the resin film to cure the adhesive layer;
the metal substrate having the adhesive layer and the resin film being stamped to form a cavity, the metal substrate, the adhesive layer and the resin film cooperatively forming the cavity; and
locating the metal substrate a mold, molding molten resin into the mold to form an internal structure received in the cavity, and the internal structure being formed on the resin film.

8. The method of making a housing as claimed in claim 7 , wherein the during the stamping process, the metal substrate, the adhesive layer and the resin film are deformed, the resin film and the adhesive layer bond with the metal substrates during the stamping process, the deformed metal substrate, the deformed adhesive layer, and the deformed resin film cooperatively form the cavity.

9. The method of making a housing as claimed in claim 7 , wherein the UV light passes through the resin film to cure the adhesive layer, the resin film bonds with the metal substrate through the adhesive layer.

10. An electronic device comprising:
a body; and
a housing assembled to the body, the housing having:
a metal substrate;
an adhesive layer formed on the metal substrate, wherein the adhesive layer is made of UV curing paint and has a thickness of between 0.05 mm to 0.1 mm; and
a resin film formed on the adhesive layer, the metal substrate, the adhesive layer and the resin film cooperatively forming a cavity through a stamping process, an internal structure being formed in the cavity through an injection process, and the internal structure being formed on the resin film.

11. The electronic device as claimed in claim 10 , wherein the metal substrate has a thickness of between 0.4 mm to 0.8 mm.

12. The electronic device as claimed in claim 10 , wherein the metal film is made of stainless steel, iron, aluminium, aluminium alloy, copper, copper alloy, titanium, titanium alloy, magnesium, or magnesium alloy.

13. The electronic device as claimed in claim 10 , wherein the resin film is made of polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polymethylmethacrylate or polylactide.

14. The electronic device as claimed in claim 10 , wherein the resin film is transparent, and has a thickness of between 0.05 mm to 0.2 mm.

15. The electronic device as claimed in claim 10 , wherein the internal structure is made of polycarbonate, polyethylene terephthalate, polybutylene terephthalate, poly(p-phenylene sulfide) plyamide, polypropylene, acrylonitrile butadiene styrene copolymers, thermoplastic polyurethane, or poly 1,4-cyclohexylene dimethylene terephthalate.

16. The electronic device as claimed in claim 10 , wherein the electronic device further includes a PCB and a battery located, the battery is electronically connected with the PCB.

Assignees

• Shenzhen Futaihong Prec Ind Co
• Fih Hong Kong Ltd

Inventors

• Jin Zheng
• Gu Chang-Hai
• Liu xiao-kai
• Wang Yu-Tsai

Classifications

• B29K2069/00

  Use of PC, i.e. polycarbonates {or derivatives thereof}, as moulding material · CPC title

• B29L2031/3481

  Housings or casings incorporating or embedding electric or electronic elements · CPC title

• B29C33/3842

  Manufacturing moulds, e.g. shaping the mould surface by machining · CPC title

• H04M1/0202

  Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03) · CPC title

• B29K2067/006

  PBT, i.e. polybutylene terephthalate · CPC title