Booster pump and water drinking equipment

The invention discloses a booster pump and drinking water equipment, and relates to the technical field of water pumps, the booster pump comprises a pump head and a motor, the motor is used for driving the pump head, the motor comprises a stator, and the stator is coated with plastic; the rotor is rotationally arranged in the stator, the rotor comprises a rotor yoke, a plurality of rotor teeth are uniformly arranged on the periphery of the rotor yoke at intervals, the rotor teeth are connected to the peripheral wall of the rotor yoke through magnetic bridges, a mounting groove is formed between every two adjacent rotor teeth, and a permanent magnet is arranged in each mounting groove; wherein the rotor teeth are provided with at least one through groove, the length direction of the through groove is parallel to the axial direction of the rotor, the sectional area of the through groove in the length direction is S1, a supporting convex part is arranged in the mounting groove, the space between every two adjacent magnetic bridges is divided into two weight reduction empty grooves by the supporting convex part, the sectional area of each weight reduction empty groove in the length direction is S2, and S1/S2 is larger than or equal to 1.5 and smaller than or equal to 4; according to the technical scheme provided by the invention, the mass of the rotor is greatly reduced.