To provide a pump device capable of preventing displacement of a relative position of a stator with respect to a partition member formed with a partition arranged between a stator and a pump chamber during injection molding of a resin member covering the stator or the like.
The pump device 1 includes: a rotor 4 attached with an impeller 2; the stator 5 having a driving coil 23, an insulation member 25, and a stator core 24 formed with a plurality of salient pole parts around which the driving coil 23 is wound via the insulation member 25; a pump chamber 9; and a partition member 28 having a partition 28a arranged between the stator 5 and the pump chamber 9. The partition 28a is formed in a substantially bottomed cylinder shape having a cylinder part 28c, a bottom 28d, and a flange 28e. The insulation member 25 is formed with an abutment 25d in abutment with the flange 28e, and at least part of the abutment 25d is fixed to the flange 28e.
FUJISHIMA MAKOTO
| JP2009284704A | 2009-12-03 | |||
| JP2008092759A | 2008-04-17 |
| EP0732794A1 | 1996-09-18 |
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko
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