KR970063524A

KR970063524A - Cooling structure of underwater pump

Info

Publication number: KR970063524A
Application number: KR1019960002723A
Authority: KR
Inventors: 윤홍열; 이동익; 이성빈
Original assignee: 구자홍; Lg전자 주식회사
Priority date: 1996-02-05
Filing date: 1996-02-05
Publication date: 1997-09-12

Abstract

본 발명은 수중용 펌프에 있어, 모터의 구동시 발생되는 열을 식혀 펌프의 과열을 방지함은 물론 모터의 효율을 향상시킬 수 있도록 한 수중형 펌프의 모터 냉각구조에 관한 것이다.The present invention relates to a motor cooling structure for a submersible pump, which can improve the efficiency of the motor as well as prevent overheating of the pump by cooling the heat generated when the motor is driven.

종래 수중용 모터의 냉각 구조는 밀폐된 구동축에 담겨진 냉각액에 의하여 모터의 냉각 작용을 수행하므로서, 냉각액의 누출을 방지하기 위하여 마개로 이를 막아주어야만 하므로서, 펌프의 제작공정에 있어 자동화가 어렵게 되며, 또한 밀폐된 축안에 일정량의 냉각액이 들어가 있으므로 계속 가열되어 냉각액의 온도가 모터의 온도와 동일해질 경우에는 더 이상의 냉각효과를 기대하기 어려워 모터의 고정자에서 발생하는 열손실을 방열하는 데 한계가 있다.Conventionally, the cooling structure of the conventional water-cooled motor has to shut off the cooling fluid by a cap to prevent leakage of the cooling fluid by performing the cooling action of the motor by the cooling fluid contained in the closed drive shaft. When the temperature of the cooling liquid is constantly the same as the temperature of the motor because the cooling liquid is contained in the enclosed shaft, it is difficult to expect a further cooling effect, so there is a limit to dissipate the heat loss generated in the stator of the motor.

본 발명에서는 상기에서와 같은 문제점을 해결하기 위하여 구동측과 모터 결합부 끝단에 또 하나의 유출구를 형성시키고, 구동측의 양끝단을 모두 오픈시켜, 고속으로 유입되는 물이 구동측을 통하도록 하면서, 냉각작용이 이루어지도록 하므로서, 더 효율적인 냉각작용이 이루어지도록 하는 것으로서, 빠른 유속으로 구동축을 통과하는 물에 의해 모터의 냉각작용이 이루어지게 되어, 매우 뛰어난 냉각효과를 기대할 수 있으며, 구동측의 양 끝단을 모두 개방하여 구성하므로서, 제작공정에 있어서도 자동화시킬 수 있어 경제성에 있어서도 효과적이다.In order to solve the problems described above, the present invention forms another outlet at the driving side and the motor coupling end and opens both ends of the driving side so that water flowing at high speed passes through the driving side And the cooling action is effected so as to achieve a more efficient cooling action. As a result, the cooling effect of the motor is achieved by the water passing through the drive shaft at a high flow velocity, and a very excellent cooling effect can be expected. It is possible to automate the manufacturing process, which is also effective in terms of economy.

Description

Cooling structure of underwater pump

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 종래 수중용 펌프의 냉각구조를 보인 단면도.FIG. 1 is a sectional view showing a cooling structure of a conventional water pump. FIG.

Claims

A cooling structure for an underwater pump, characterized in that a part of water introduced by a pump action is sent to a cooling part so that a cooling action can be performed.

The motor according to claim 1, wherein at least one impeller and a diffuser are formed, and the inside of the driving side for rotating the formed impeller is formed as a tube, both ends of the formed driving shaft are formed in an open state, Wherein a portion of the water introduced into the pump flows into one side of the drive shaft so that the cooling action is performed while passing through the drive side. Cooling structure.

The cooling structure for an underwater pump according to claim 1, wherein a part of the introduced water is introduced into the cooling part when the pressure of the water flowing into the pump becomes higher than that when the water is introduced.

※ Note: It is disclosed by the contents of the first application.