| 摘要 |
PROBLEM TO BE SOLVED: To provide a canned motor pump which has a control circuit contained and arranged in a motor casing together with a motor for drive and the control circuit embedded in resin as an auxiliary means for heat dissipation of a mounted heating electronic part. SOLUTION: In this canned motor pump, a motor casing forming a housing is a combination body of a cylinder part 1' and a disc-form bracket 2 or a cup-form integral structure. A control circuit 3 having a desired electronic part 3-2 mounted on a given circuit substrate 3-1 is filled with resin 4, having excellent thermal conductivity, and securely held such that a heat generating electronic part 3-2 is embedded in the vicinity of the inner surface of the bottom of a motor casing 1, the electronic part 3-2 is embedded by filling with the resin 4 in a way that resin is injected therein with the opening end of the motor casing up and the motor casing forming a container filled with resin. |
