| CPC H04R 1/105 (2013.01) [H04R 1/1025 (2013.01); H04R 1/1041 (2013.01); H04R 1/1058 (2013.01); H04R 1/1075 (2013.01); H04R 5/033 (2013.01); H04R 9/066 (2013.01); H04R 2201/105 (2013.01); H04R 2460/13 (2013.01)] | 20 Claims |

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1. A core module including a core housing and a core, wherein
one end of the core housing includes an opening, and the core is disposed in the core housing through the opening; and
the core includes a magnetic conduction shield, a magnet, a magnetic conduction plate, and a coil, wherein
the magnetic conduction shield includes a bottom plate and an annular side plate integrally connected with the bottom plate, and the magnet is disposed inside the annular side plate and fixed on the bottom plate,
the magnetic conduction plate is fixed on one side of the magnet that is away from the bottom plate, and
the coil is disposed in a magnetic gap between the magnet and the annular side plate,
wherein the magnet is configured to generate a magnetic field such that the coil located in the magnetic field generates mechanical vibrations under an excitation of electrical signals, and
the magnet is further configured such that the core module is attachable to a magnetic object through a bottom wall of the core housing.
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