Vortex pump

Abstract

A vortex pump comprises: an impeller that includes a plurality of blades at an outer circumference and a rotor magnet placed at an inner circumference; a shaft fixed at a center of the impeller; a bearing component placed at an outer circumference of the shaft; a motor stator placed at an inner circumference side of the rotor magnet; and a case structural component having a suction port and a discharge port that functions to house the impeller and furthermore to divide the impeller and the motor stator. A motor stator side surface of the case structural component is covered with an adhesive material to cause the motor stator to adhere to the motor stator side surface.

1 . A vortex pump comprising:
 an impeller that includes a plurality of blades at an outer circumference and a rotor magnet placed at an inner circumference;   a shaft fixed at a center of the impeller;   a bearing component placed at an outer circumference of the shaft;   a motor stator placed at an inner circumference side of the rotor magnet; and   a case structural component having a suction port and a discharge port that functions to house the impeller and furthermore to divide the impeller and the motor stator;   wherein a motor stator side surface of the case structural component is covered with an adhesive material to cause the motor stator to adhere to the motor stator side surface.   
   
   
       2 . The vortex pump according to  claim 1  wherein thickness of a wall of the case structural component at a side, which divides the impeller and the motor stator, is at least 0.2 mm and thinner than 1.5 mm. 
   
   
       3 . The vortex pump according to  claim 1  wherein the bearing component is a ball bearing, and a circular protruded section centered at the shaft is placed at an outer circumference section, which is outside a position including an outer race of the ball bearing and at a lower surface of a motor stator side of the impeller. 
   
   
       4 . The vortex pump according to  claim 1  wherein a lid component placed on the case structural component that houses the impeller is welded onto the case structural component. 
   
   
       5 . A vortex pump comprising:
 an impeller that includes a plurality of blades at an outer circumference and a rotor magnet placed at an inner circumference;   a shaft fixed at a center of the impeller;   a bearing component placed at an outer circumference of the shaft;   a motor stator placed at an inner circumference side of the rotor magnet; and   a case structural component having a suction port and a discharge port that works to house the impeller and furthermore to divide the impeller and the motor stator;   wherein the motor stator is adhered and fixed with an adhesive material onto a surface of the case structural component that faces the motor stator.   
   
   
       6 . The vortex pump according to  claim 5  wherein the motor stator is equipped with a protruded pole part in which a wire-wound coil is formed, and at least all the wire-wound coil is adhered and fixed with an adhesive material onto a surface of the case structural component that faces the motor stator. 
   
   
       7 . The vortex pump according to  claim 6  wherein all the wire-wound coil and the protruded pole part are adhered and fixed with an adhesive material onto a surface of the case structural component that faces the motor stator. 
   
   
       8 . The vortex pump according to  claim 6  wherein thickness of a wall of the case structural component at a side, which divides the impeller and the motor stator, is at least 0.2 mm and thinner than 1.5 mm. 
   
   
       9 . The vortex pump according to  claim 8  wherein the motor stator is equipped with a protruded pole part in which a wire-wound coil is formed, and all the wire-wound coil and the protruded pole part are embedded with a resin material so as to construct the integral-type case structural component. 
   
   
       10 . The vortex pump according to  claim 6  wherein the bearing component is a ball bearing, and a circular protruded section centered at the shaft is placed at an outer circumference section, which is outside a position including an outer race of the ball bearing and at a lower surface of a motor stator side of the impeller. 
   
   
       11 . A vortex pump comprising:
 an impeller that includes a plurality of blades at an outer circumference and a rotor magnet placed at an inner circumference;   a shaft fixed at a center of the impeller;   a bearing component placed at an outer circumference of the shaft;   a motor stator placed under the impeller and at an inner circumference side of the rotor magnet; and   an integral-type case structural component having a suction port and a discharge port, which functions to house the impeller, and furthermore in which the motor stator is embedded.