JPH02105596U

JPH02105596U -

Info

Publication number: JPH02105596U
Application number: JP1408189U
Authority: JP
Priority date: 1989-02-10
Filing date: 1989-02-10
Publication date: 1990-08-22

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すマグネツト駆
動ポンプの縦断面図、第２図は本考案の簡易型マ
グネツト駆動ポンプの縦断面図、第３図は従来例
を示す縦断面図である。１……ポンプケーシング、２……ポンプ羽根車
、３……従動磁石輪、６……駆動磁力輪、７……
キヤン、８……ヨーク、９……電動機、１１……
側板、１２……フアン、１３……ブラケツト、１
５……断熱板、２１……遠心羽根車、Ａ，Ｂ，Ｃ
，Ｄ，Ｅ……開口。 Fig. 1 is a vertical sectional view of a magnet-driven pump showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of a simple magnet-driven pump of the invention, and Fig. 3 is a longitudinal sectional view of a conventional example. . 1... Pump casing, 2... Pump impeller, 3... Driven magnetic wheel, 6... Drive magnetic wheel, 7...
Can, 8... Yoke, 9... Electric motor, 11...
Side plate, 12...Fan, 13...Bracket, 1
5...Insulation board, 21...Centrifugal impeller, A, B, C
, D, E...opening.

Claims

[Scope of Claim for Utility Model Registration] 1. A pump impeller and a driven magnet ring are attached to the rotating shaft, and a driving magnet ring that is interlocked with an electric motor is disposed on the outer periphery of the driven magnet ring, facing the driven magnet ring across a can. In a magnet-driven pump in which the pump impeller is rotated by applying a magnetic force between it and a magnetic ring, a fan is provided at the end of the opposite output shaft of the electric motor, and a side plate on the fan side of the electric motor and a drive magnetic wheel are accommodated. In addition, ventilation openings are provided on the side and peripheral surfaces of the bracket that attaches the electric motor to the pump casing, and the cooling air generated by the fan is directed into the inside of the electric motor and the outside of the yoke that attaches the drive magnet ring to the motor shaft. A cooling device for a magnet-driven pump, characterized in that the liquid is discharged to the outside through an opening in the peripheral surface of the bracket. 2. A pump impeller and a driven magnet ring are attached to the rotating shaft, and a driving magnet ring that is interlocked with the electric motor is placed on the outer periphery of the driven magnet ring, facing across a can, and a magnetic force is generated between the driven magnet ring and the driven magnet ring. In a magnet-driven pump in which a pump impeller is rotated, a fan is provided at the opposite end of the output shaft of the electric motor, a side plate on the fan side of the electric motor and a drive magnet ring are housed, and the electric motor is attached to a pump casing. Ventilation openings are provided on the side and peripheral surfaces of the bracket, and the cooling air generated by the fan is passed through the inside of the motor and the outside of the yoke that attaches the drive magnet wheel to the motor shaft, and then through the openings on the peripheral surface of the bracket. In addition to releasing more water to the outside,
A centrifugal impeller is provided on the outer periphery of the yoke, and an air inlet and outlet opening is provided in the bracket for inflowing and discharging cooling air by the centrifugal impeller, and the suction side of the centrifugal impeller of the yoke is provided. Nearby,
1. A cooling device for a magnet-driven pump, characterized in that an opening is provided for sending air in a space radially inward of a drive magnet wheel to the suction side of the centrifugal impeller.