The invention discloses an economical and practical embedded freezing and
cold storage fresh-keeping and preservation low-intensity
magnetic field modularization device which can be applied to refrigerators, intelligent cabinets,
wine cabinets, warehouse logistics equipment and the like. The device comprises a coil frame, a
magnet exciting coil and a
control circuit, the
magnet exciting coil is arranged in the coil frame so as to generate a steady low-intensity
magnetic field or a pulse steady low-intensity
magnetic field; and the
control circuit is connected with the
magnet exciting coil and used for adjusting the magnetic
field intensity of the steady low-intensity magnetic field or the pulse steady low-intensity magnetic field and the magnetic
field frequency and the duty ratio of the pulse steady low-intensity magnetic field. According to the device, a small-size coil frame and a small-size wire
diameter are adopted, so that the ratio range of the weight of the device to the effective storage volume of embedded equipment is 0.05-0.5 kg / L, the
unit volume energy consumption of the embedded equipment is 0.03-5.0 W / L, important factors such as weight, magnetic
field intensity and frequency, coil heat dissipation, magnetic field duty ratio and the like are balanced, high-quality and low-energy-consumption freezing and
refrigeration of food, medical supplies, agricultural product raw materials, fresh flowers,
plant seeds and the like by the magnetic field are kept to the maximum extent.