KR970066110A

KR970066110A - Cooling structure of underwater pump

Info

Publication number: KR970066110A
Application number: KR1019960007110A
Authority: KR
Inventors: 윤홍열
Original assignee: 구자홍; Lg 전자주식회사
Priority date: 1996-03-16
Filing date: 1996-03-16
Publication date: 1997-10-13

Abstract

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

종래 수중용 펌프의 냉각 구조는 밀폐된 구동축에 담겨진 냉각액에 의하여 모터의 냉각작용을 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 underwater pump performs the cooling action of the motor by the cooling liquid contained in the closed drive shaft, and thus it is necessary to prevent the cooling liquid from leaking, so that it is difficult to automate the manufacturing process of the pump. 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 펌프 모터와 다른 각 부분과의 칸막이 방수처리를 하여 모터의 내측을 밀폐시키고, 밀폐된 모터의 내부로 냉각액을 넣어 냉각액을 순환시켜 주므로서, 고속으로 순환되어지는 냉각액에 의하여 펌프 모터의 냉각 및 제어판등의 다른 각 부분의 냉각에 있어 더욱 효율적인 냉각작용이 이루어질 수 있도록 하는 것이다.In order to solve the problems as described above, the present invention seals the partition walls of the pump motor and other parts to seal the inside of the motor, and inserts the cooling fluid into the closed motor to circulate the cooling fluid. The circulation of the cooling liquid makes it possible to cool the pump motor and to cool the other parts such as the control panel more efficiently.

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, 제2도는 본 발명 수중용 펌프의 냉각구조를 보인 단면도, 제3도의 (가)는 도면 제2도의 A-A'선 단면도, (나)는 도면 제2도의 B-B'선 단면도.FIG. 3 is a cross-sectional view taken along the line A-A 'in FIG. 2, FIG. 3 is a cross-sectional view showing the cooling structure of the conventional water pump, Sectional view taken along the line B-B 'in FIG. 2;

Claims

In the underwater pump, the inner space of the motor is sealed, the inner space of the closed motor is filled with the cooling liquid, the cooling liquid circulating means is formed, and the cooling liquid is circulated inside the motor by the cooling liquid circulating means, And a cooling structure for the water pump.

The pump according to claim 1, wherein the cooling liquid circulating means is formed as an impeller on a driving shaft of a rotor and a stator, inside a sealed motor, and a cooling liquid circulated by the formed impeller is passed through a gap between the rotor and the stator, And is circulated through a space formed between the stator and the stator.

The pump according to claim 1 or 2, characterized in that unevenness is formed on the surface of the stator which abuts against the pump case so as to facilitate circulation of the circulating cooling fluid, thereby forming a flow path space of the cooling fluid by the unevenness Cooling structure.

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