Input key and manufacturing method thereof
View Patent ↗A key includes a base and a top cover. The base is made of a non-plated first plastic material. The base defines a through hole in a center portion, and a plurality of receiving portions surrounding and communicating with the through hole. The top cover is made of plated second plastic material. The top cover forms a plurality of connecting portions received in the receiving portions of the base The top cover is covered with a metal plating layer. A method of manufacturing a key is also provided.
1. A key, comprising:
a base made of a non-plated first plastic material, the base defining a through hole in a center portion, and at least one receiving portion surrounding and communicating with the through hole, wherein a width of a part of the at least one receiving portion adjacent to the through hole decreases towards the through hole;
a top cover made of a plating second plastic material, the top cover forming at least one connecting portion received in the at least one receiving portion of the base; and
a metal plating layer covering the top cover.
2. The key of claim 1 , wherein the first plastic material is polycarbonate.
3. The key of claim 1 , wherein the first plastic material is a mixture of polycarbonate and acrylonitrile butadiene styrene, and polycarbonate accounts for more than 30% in weight.
4. The key of claim 1 , wherein the second plastic material is acrylonitrile butadiene styrene.
5. The key of claim 1 , wherein the second plastic material is a mixture of acrylonitrile butadiene styrene and polycarbonate, and polycarbonate accounts for less than 30% in weight.
6. The key of claim 1 , wherein the at least one receiving portion is approximately hemispherical, and a central angle of the at least one receiving portion corresponding to a center of the first receiving portions is greater than 180°.
7. The key of claim 1 , wherein the receiving portion comprises a substantially rectangular section and a contraction section.
8. The key of claim 1 , wherein the top cover defines an assembly hole in a bottom surface.
9. The key of claim 1 , wherein the base is a curved piece.