PUMPING APPARATUS
First Claim
1. A pumping apparatus, comprising:
- an impeller;
a rotor, installed with the impeller and having a driving magnet;
a stator, formed in a tubular shape and disposed on an outer circumference side of the rotor, and having a driving coil;
a pump chamber, disposed with the impeller and the rotor, and allowing a fluid to pass through;
a partition wall member, disposed between the stator and the pump chamber, and preventing the fluid in the pump chamber from flowing into a position where the stator is disposed;
a circuit board, disposed outside the pump chamber, and secured on the partition wall member; and
a resin sealing member made by a resin, covering the stator and the circuit board, andthe stator comprising;
an insulation member;
a stator core, having a plurality of salient poles for winding the driving coil through the insulation member; and
a plurality of terminal pins, electrically connected to an end portion of the driving coil, and disposed in parallel to an axial direction of the stator formed in the tubular shape,wherein if one direction of the axial direction is set as a first direction and an opposite direction of the first direction is set as a second direction,the circuit board is secured on a portion of the partition wall member on a side of the first direction and disposed closer to the side of the first direction than the stator core and the insulation member,a portion of the terminal pin on the side of the first direction is secured to the circuit board,a portion of the terminal pin on a side of the second direction is secured to the insulation member,a first contact surface facing the side of the first direction is formed on the insulation member,a second contact surface is formed on the partition wall member, the second contact surface faces the side of the second direction, and the first contact surface is in contact with the second contact surface to restrict a movement of the stator in the first direction.
1 Assignment
0 Petitions
Accused Products
Abstract
In the pumping apparatus of the invention, a circuit board is secured to a portion of a partition wall member on a side of a first direction, and disposed closer to the side of the first direction than a stator core and an insulation member. A portion of a terminal pin on the side of the first direction is secured to the circuit board, and a portion of the terminal pin on a side of a second direction is secured to the insulation member. A first contact surface facing the side of the first direction is formed on the insulation member. A second contact surface is formed on the partition wall member. The second contact surface faces the side of the second direction. Also, the first contact surface is in contact with the second contact surface to restrict a movement of the stator in the first direction.
10 Citations
17 Claims
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1. A pumping apparatus, comprising:
- an impeller;
a rotor, installed with the impeller and having a driving magnet;
a stator, formed in a tubular shape and disposed on an outer circumference side of the rotor, and having a driving coil;
a pump chamber, disposed with the impeller and the rotor, and allowing a fluid to pass through;
a partition wall member, disposed between the stator and the pump chamber, and preventing the fluid in the pump chamber from flowing into a position where the stator is disposed;
a circuit board, disposed outside the pump chamber, and secured on the partition wall member; and
a resin sealing member made by a resin, covering the stator and the circuit board, andthe stator comprising;
an insulation member;
a stator core, having a plurality of salient poles for winding the driving coil through the insulation member; and
a plurality of terminal pins, electrically connected to an end portion of the driving coil, and disposed in parallel to an axial direction of the stator formed in the tubular shape,wherein if one direction of the axial direction is set as a first direction and an opposite direction of the first direction is set as a second direction, the circuit board is secured on a portion of the partition wall member on a side of the first direction and disposed closer to the side of the first direction than the stator core and the insulation member, a portion of the terminal pin on the side of the first direction is secured to the circuit board, a portion of the terminal pin on a side of the second direction is secured to the insulation member, a first contact surface facing the side of the first direction is formed on the insulation member, a second contact surface is formed on the partition wall member, the second contact surface faces the side of the second direction, and the first contact surface is in contact with the second contact surface to restrict a movement of the stator in the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- an impeller;
Specification