CN2184287Y

CN2184287Y - Electric motor for liquid state coolant cooling machine

Info

Publication number: CN2184287Y
Application number: CN 93239738
Authority: CN
Inventors: 魏忠信; 刘林; 杨国材; 廖成忠; 王国琴; 汪洋
Original assignee: CHONGQING MOTOR FACTORY
Current assignee: CHONGQING MOTOR FACTORY
Priority date: 1993-12-13
Filing date: 1993-12-13
Publication date: 1994-11-30
Anticipated expiration: 2003-12-13

Abstract

The utility model relates to an electric motor with a cooling machine, which is suitable for matching with the cooling machine; the cooling structure thereof is formed by two cooling channels, wherein, the coolant of one channel can arrive in the inner surface of a stator through the cooling channel (2) of a rotary shaft and the cooling channel (4) on the rotor iron core and flows out of the electric motor from the outlet of a concourse pipe (7); the coolant of the other channel can enter a groove (10) between a machine shell and the stator through the inlet (9) of a machine shell for cooling the outer surface of the stator, and the coolant can flow out the electric motor through the outlet of the concourse pipe and is communicated with the coolant circulating system of the cooling machine. The utility model has good cooling effect and simple structure.

Description

Electric motor for liquid state coolant cooling machine

The utility model relates to a kind of used for refrigerator motor with liquid refrigerants circulation cooling structure.

Motor is meeting output heat in running, this heat is extremely harmful to motor, it can make the various performances of motor reduce, even burn out motor and motor is scrapped, the cooling structure of domestic electric machine mostly is that a cooling system is set outside motor at present, as add blower fan, add pipeline and adopt water-cooled or air cooling or the like, these can only take away the heat on motor surface, and its inner heat is not exchanged fully, and this cooling structure causes the volume of motor to increase the corresponding increase of raw material and cost.

The purpose of this utility model is to provide a kind of used for refrigerator motor with liquid refrigerants circulation cooling structure, has above-mentioned deficiency to overcome prior art.

Above-mentioned purpose of the present utility model is to realize by such structure: promptly it comprises stator and rotor support and housing, it is characterized in that: rotating shaft is the ducted body of band cooling duct, the one end is communicated with the refrigerant inlet of bearing assembling place, and rotor core between rotating shaft on fluted, have the cooling duct to be communicated with cooling duct on the rotor core on the rotating shaft wall by groove; There is at least one annular recess in part between casing inner wall and the stator, is communicated with refrigerant on casing inlet; The refrigerant manifold trunk is arranged at the outer bottom of casing, on the casing in the outside, stator two ends corresponding through hole UNICOM is with it arranged, and the refrigerant manifold trunk has coolant circulating system UNICOM on outlet and the external refrigerator, has the refrigerant notch on the periphery of stator pressing ring.

Said structure of the present utility model can further specify by embodiment and the operation principle thereof that accompanying drawing provides.

Accompanying drawing is the structural representation that partly cuts open of the present utility model.

Referring to accompanying drawing: motor liquid refrigerants circulation cooling structure constitutes two cooling ducts, and one is that refrigerant porch from the bearing assembling enters rotating shaft cooling duct 2, enters in the rotating shaft groove 5 again, and when rotor turned round with rotor, refrigerant was under action of centrifugal force; Evenly spray on the inner surface of stator 6 from epitrochanterian two exits that are symmetrical in the cooling duct 4 of center line, refrigerant absorbs heat and becomes gas, notch from stator pressing ring 11 peripheries converges in the refrigerant manifold trunk 7 of motor housing bottom again, obtains cooling at this process rotor and stator interior; The second cooling duct is: refrigerant is by the refrigerant porch 9 on the motor housing, enter in three annular recess 10 on the motor case, under pressure, reach the top of stator, overflow by level pressure circle 11 notches again, in this process, stator external surface obtains cooling, and the flow through two ends of stator of the refrigerant that the liquid that is overflowed by stator pressing ring 11, gas mix are to its cooling, import again in the poly-pipe 7, get back in the refrigerant system 12 on the external refrigerator by outlet 8 place's outflow motors again.

The utility model is owing to adopt said structure, and its cooling effect is conspicuous, promptly this cooling structure can make motor in, the big reduction of outer heat, thus prolonged life-span of motor, performance also increases.

Claims

1, a kind of used for refrigerator motor that uses liquid refrigerants, it comprises stator (6) rotor (3), support and housing, it is characterized in that: rotating shaft is the ducted body of band cooling duct (4), the one end is connected with the refrigerant inlet of bearing assembling place, and rotor core between rotating shaft on fluted (5), have the cooling duct to pass through groove (5) on the rotating shaft wall and be communicated with cooling duct (4) on the rotor core; Casing inner wall exists at least one annular recess (10) to be communicated with refrigerant inlet (9) on the casing with part between the stator; Refrigerant manifold trunk (7) is arranged at the outer bottom of casing, on the casing in the outside, stator (3) two ends corresponding through hole UNICOM is with it arranged, and the refrigerant manifold trunk has coolant circulating system UNICOM on outlet (8) and the external refrigerator; Have the refrigerant notch on the periphery of level pressure circle (11).