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US 12,224,787 B1Granted
Protective case for electronic device
AssigneeShenzhen Lingyi Innovation Technology Co., Ltd
InventorsYanghui Zheng, Qiushun Liu
Life of this patent
Estimating the term…
Abstract
A protective case for electronic equipment has a decorative layer, a functional layer, and a magnetic component inserted into the functional layer. A coating applied to the functional layer retains the magnetic component during removal of an electronic device or piece of equipment from the case. The functional layer may have a thickness that is substantially equivalent to the thickness of the magnetic component. A coating applied to the decorative layer may provide water resistance and prevent fingerprints on the case. Methods of fabricating a protective case for electronic equipment include a spraying method as well as a hot press forming method.
Claims17
An electronic device protective case, comprising:
- a decorative layer including at least one layer of first sheet material;
- and
- a functional layer that is in contact with the decorative layer, the functional layer
- including at least one layer of second sheet material and a magnetic piece;
- wherein:
- the second sheet material is provided with a mounting hole;
- the magnetic piece is embedded in the mounting hole;
- and
- the magnetic piece has a thickness that matches a depth of the mounting hole;
- further wherein:
- the decorative layer has an outer surface that is provided with a first coating;
- the functional layer has an inner surface that is provided with a second coating, with the second coating completely covering the mounting hole;
- and
- the second coating is formed of at least one of polyester, polyethylene, polypropylene, or epoxy materials, and wherein the electronic device protective case further comprises either (i) or (ii):
- (i) the first coating has a thickness that ranges from 0.01 mm to 0.10 mm;
- and
- the second coating has a thickness that ranges from 0.05 mm to 0.28 mm, and further wherein the electronic device protective case is made by a hot pressing method, the hot pressing method comprising:
- bonding the first sheet material of the decorative layer, the second sheet material of the functional layer and the magnetic piece together by hot pressing to form a semi-finished product;
- preparing a hot pressing mold;
- placing the semi-finished product in a female portion of the hot pressing mold with the functional layer facing up;
- coating an inner surface of the functional layer evenly with at least one of a polyester coating or an epoxy coating;
- heat curing the semi-finished product;
- rotating the semi-finished product so that the functional layer is in contact with a male portion of the hot pressing mold, such that the decorative layer is facing upward;
- evenly spraying paint on the decorative layer;
- placing the semi-finished product in an environment of 80-100° C., applying 0.2-2.0 MPa of pressure on the semi-finished product, heating for 30-120 min;
- and
- taking out the semi-finished product after cooling, or
- (ii) the thickness of the first coating ranges from 0.02 mm to 0.10 mm;
- and
- the thickness of the second coating ranges from 0.10 mm to 0.28 mm;
- and
- further wherein the electronic device protective case is made by a method comprising:
- cutting out a first coating and a second coating of appropriate shapes;
- combining the first coating, the at least one layer of first sheet of material of the decorative layer above the first coating, the at least one layer of second sheet of material of the functional layer above the first sheet material of the decorative layer, a magnetic piece inlaid in the functional layer, and the second coating above the decorative layer to form a semi-finished product;
- placing the semi-finished product in an environment of a predetermined temperature, applying a predetermined pressure on the semi-finished product, and heating for a predetermined heating time;
- and
- taking out the semi-finished product after cooling.
34 more elements
An electronic device protective case, comprising:
- a decorative layer including at least one layer of first sheet material;
- and
- a functional layer that is in contact with the decorative layer, the functional layer
- including at least one layer of second sheet material and a magnetic piece;
- wherein:
- the second sheet material is provided with a mounting hole;
- the magnetic piece is embedded in the mounting hole;
- and
- the magnetic piece has a thickness that matches a depth of the mounting hole;
- further wherein:
- the decorative layer has an outer surface that is provided with a first coating, and the first coating is applied by spraying a surface treatment agent;
- the functional layer has an inner surface that is provided with a second coating, with the second coating completely covering the mounting hole;
- and
- the second coating is formed of at least one of polyester, polyethylene, polypropylene, or epoxy materials,
- further wherein:
- the first coating has a thickness that ranges from 0.01 mm to 0.10 mm;
- and
- the second coating has a thickness that ranges from 0.05 mm to 0.28 mm.
15 more elements
Dependencies are inferred from the claim text.