The utility model relates to an
electromagnetic pump. The
electromagnetic pump comprises a coil framework, an
electromagnetic coil and a pump body
assembly, the coil framework is sleeved with the
electromagnetic coil, a mounting cavity is formed in the inner circumferential face of the coil framework, and the pump body
assembly is arranged in the mounting cavity; the pump body
assembly comprises a base, a
resonance piece, a vibrating piece and a cover body which are sequentially stacked in the axis direction of the coil framework, a
pump chamber is formed between the cover body and the
resonance piece, a permanent
magnet is arranged at the position, located in the
pump chamber, of the vibrating piece, the
resonance piece is provided with an air inlet hole, the cover body is provided with an air outlet hole, and the permanent
magnet is arranged in the
pump chamber. An avoiding groove is formed in the base; after the
electromagnetic coil is electrified, the permanent
magnet is driven to do
reciprocating motion in the axis direction of the pump chamber, so that the vibration piece and the resonance piece vibrate, and fluid in the avoiding groove enters the pump chamber through the air inlet hole and is pumped out from the air outlet hole. According to the scheme provided by the invention, the risk of
ceramic cracking of the piezoelectric
ceramic pump can be avoided, and the piezoelectric
ceramic pump has the characteristics of
miniaturization,
lightness and thinness.