Speaker and method for fabricating same
A method for fabricating a speaker is disclosed. The speaker is equipped with a case having a through cavity, an inner surface forming the cavity and an outer surface, a magnetic bowl coupled to the case, a magnet positioned in the magnetic bowl, a pole plate covering the magnet, a magnetic gap formed by the magnet and the magnetic bowl, a diaphragm supported by the case and vibrating along a vibrating direction, a voice coil connected to the diaphragm, and a hearing aid coil formed on the case. The method includes the steps of: providing a case made of thermoplastic doped with organometallic additive; activating the organometallic additive in the case by a laser beam for forming initial pattern of the hearing aid coil in the inner surface of the case; and bathing the case in copper solution for providing the initial pattern with copper plating layer.
1. A speaker comprising:
a case having a through cavity, an inner surface forming the cavity, an outer surface, an upper surface perpendicular to the inner surface and a slope extending from the upper surface to the inner surface;
a magnetic bowl coupled to the case;
a magnet positioned in the magnetic bowl;
a pole plate covering the magnet;
a magnetic gap formed by the magnet and the magnetic bowl;
a diaphragm supported by the case and vibrating along a vibrating direction;
a voice coil connected to the diaphragm; and
a hearing aid coil formed on the inner surface; wherein
the hearing aid coil is a copper plating layer on the slope of the case and the inner surface surrounds the magnetic bowl, the hearing aid coil forms a ring surrounding the magnetic bowl.
2. A method for fabricating a speaker comprising the steps of:
providing a case made of thermoplastic doped with organometallic additive and having a through cavity, an inner surface forming the cavity, an outer surface, an upper surface perpendicular to the inner surface and a slope extending from the upper surface to the inner surface;
providing a magnetic bowl coupled to the case;
providing a magnet system having a magnetic gap;
providing a diaphragm supported by the case and vibrating along a vibrating direction;
providing a voice coil driving the diaphragm;
activating the organometallic additive in the case by a laser beam for forming initial pattern of a hearing aid coil in the slope of the case, the initial pattern of a hearing aid coil forms a ring surrounding the magnetic bowl; and
bathing the case in copper solution for providing the initial pattern with copper plating layer.