CN102386718A

CN102386718A - Motor cooling system

Info

Publication number: CN102386718A
Application number: CN2010102688592A
Authority: CN
Inventors: 黎虤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-31
Filing date: 2010-08-31
Publication date: 2012-03-21

Abstract

The invention discloses a motor cooling system; a stator iron core wound with a winding is fixedly arranged on a motor shaft through a support; end covers are sealed and fixedly arranged on both axial ends of the shell body of a motor; a whole dynamic seal sleeve formed by the end covers and the shell body is arranged on the outer side of the stator iron core wound with the winding; a closed loop space is formed among the shell body, the end covers, the motor shaft and the stator iron core wound with the winding; cooling liquid is arranged in the loop space; a pipeline, a pump and a radiator are arranged; the pump and the radiator are arranged on the outer side of the shell body; the pump and the radiator are communicated with the closed loop space through the pipeline to form a circulating loop; the cooling liquid keeps flowing in the circulating loop to fully cool the stator iron core wound with the winding, so that the motor is not burned down at high temperature even when rotating at high speed or working at high power, the service life of the motor is effectively prolonged, and the reliability of the motor is improved.

Description

The motor cooling system

Technical field

The present invention relates to a kind of cooling system, particularly a kind of motor cooling system.

Background technology

The heat of motor windings generation at present passes to the housing and the end cap of motor through radiation mode; Absorbed the diffusing motor outside of arriving, back by housing and end cap; Through wind-cooling heat dissipating, this radiating mode heat radiation is slow, and the heat that motor produces when work is difficult to distribute fast; Cause motor aging easily, influence the useful life of motor.

Summary of the invention

In order to remedy above deficiency, the invention provides a kind of motor cooling system, this motor cooling system structure is simple, heat transferred fast, cooling is abundant.

The present invention for the technical scheme that solves its technical problem and adopt is: a kind of motor cooling system, and the stator core that is tied with winding is fixedly arranged on the motor shaft through support, and the housing shaft of motor is installed with end cap to sealed at both ends; The whole movable sealing sleeve that end cap and housing form is located at the outside of the stator core that is tied with winding, and said housing, end cap, motor shaft and be tied with the annulus that forms a sealing between the stator core of winding are equipped with cooling fluid in this annulus; Be provided with pipeline, pump and radiator, pump and radiator are positioned at hull outside, and pump and radiator are communicated with the annulus of sealing through pipeline and form a circulation circuit; The heat that produces during machine operation is passed to cooling fluid, when cooling fluid reaches uniform temperature; Pump entry into service, cooling fluid flow to radiator through pipeline from annulus; Cooling fluid is by radiating and cooling when flowing through radiator, and the cooling fluid behind the heat that looses is back in the annulus again, so circulation; Take away the heat that motor produces; Reduce electric machine temperature rise, motor is worked in a suitable temperature range, solved the difficult problem of external rotor temperature rise effectively; Significantly improved the reliability of motor, the power of external rotor electric machine is done more.

As further improvement of the present invention, said pump is an electronic pump, and it takes up room little, and the cooling fluid transmission precisely, and is easy to use.

As further improvement of the present invention; Said pipeline is communicated with the annulus of sealing and the structure that forms a circulation circuit is: motor shaft is provided with the water-in and water-out passage; This water-in and water-out passage is positioned at the inboard part of housing and is communicated with annulus respectively, the part that this water-in and water-out passage is positioned at hull outside respectively with pipeline connection.

As further improvement of the present invention, the water-in and water-out passage on the said motor shaft lays respectively at annulus two symmetrical sides radially, and cooling fluid is fully mobile in annulus like this, makes its cooling fully.

As further improvement of the present invention, said cooling fluid is a kind of in cold oil and the cooling water, can certainly be other any coolant, as long as play cooling effect.

Useful technique effect of the present invention is: the present invention is through at electric machine casing, end cap and motor shaft and be tied with the annulus that forms sealing between the stator core of winding; This annulus is communicated with through the pump and the radiator of pipeline with the motor outside again; Cooling fluid is not arrheaed the moving stator core that will be tied with winding and is fully cooled off in this circulation circuit; Even motor also can not burnt by Yin Gaowen under the situation of high speed rotating or high power work; Effectively prolong the useful life of motor, improved the reliability of motor.

Description of drawings

Fig. 1 is a structural principle sketch map of the present invention.

Embodiment

Embodiment: a kind of motor cooling system, the stator core 1 that is tied with winding is fixedly arranged on the motor shaft 3 through support 2, and the housing 4 axial sealed at both ends of motor are installed with end cap 5; The whole movable sealing sleeve that end cap 5 and housing 4 form is located at the outside of the stator core 1 that is tied with winding, and said housing 4, end cap 5, motor shaft 3 and be tied with the annulus 6 that forms a sealing between the stator core 1 of winding are equipped with cooling fluid 7 in this annulus; Be provided with pipeline 8, pump 9 and radiator 10, pump 9 is positioned at housing 4 outsides with radiator 10, and pump 9 is communicated with the annulus 6 that seals through pipeline 8 with radiator 10 and forms a circulation circuit; The heat that produces during machine operation is passed to cooling fluid 7, when cooling fluid 7 reaches uniform temperature; Pump 9 entrys into service, cooling fluid 7 flow to radiator 10 through pipeline 8 from annulus 6; Cooling fluid 7 is by radiating and cooling when flowing through radiator 10, and the cooling fluid 7 behind the heat that looses is back in the annulus again, so circulation; Take away the heat that motor produces; Reduce electric machine temperature rise, motor is worked in a suitable temperature range, solved the difficult problem of external rotor temperature rise effectively; Significantly improved the reliability of motor, the power of external rotor electric machine is done more.

Said pump is an electronic pump, and it takes up room little, and the cooling fluid transmission precisely, and is easy to use.

Said pipeline is communicated with the annulus 6 of sealing and the structure that forms a circulation circuit is: motor shaft 3 is provided with water-in and water-out

passage

31,32; This water-in and water-out

passage

31,32 is positioned at housing 4 inboard parts and is communicated with annulus 6 respectively, and the part that this water-in and water-out

passage

31,32 is positioned at hull outside is communicated with pipeline 8 respectively.

Water-in and water-out

passage

31,32 on the said motor shaft 3 lays respectively at annulus 6 two symmetrical sides radially, and cooling fluid is fully mobile in annulus, makes its cooling fully.

Said cooling fluid is a kind of in cold oil and the cooling water, can certainly be other any coolant, as long as play cooling effect.

Claims

1. motor cooling system; The stator core (1) that is tied with winding is fixedly arranged on the motor shaft (3) through support (2); The housing of motor (4) axially sealed at both ends is installed with end cap (5); The whole movable sealing sleeve that end cap (5) and housing (4) form is located at the outside of the stator core (1) that is tied with winding; It is characterized in that: said housing (4), end cap (5), motor shaft (3) and be tied with the annulus (6) that forms a sealing between the stator core (1) of winding, cooling fluid (7) is housed in this annulus, be provided with pipeline (8), pump (9) and radiator (10); Pump (9) and radiator (10) are positioned at housing (4) outside, and pump (9) and radiator (10) are communicated with the annulus (6) that seals through pipeline (8) and form a circulation circuit.

2. motor cooling system as claimed in claim 1 is characterized in that: said pump is an electronic pump.

3. motor cooling system as claimed in claim 1; It is characterized in that: said pipeline is communicated with the annulus (6) of sealing and the structure that forms a circulation circuit is: motor shaft (3) is provided with turnover, aquaporin (31,32); This water-in and water-out passage (31,32) is positioned at the inboard part of housing (4) and is communicated with annulus (6) respectively, and the part that this water-in and water-out passage (31,32) is positioned at hull outside is communicated with pipeline (8) respectively.

4. motor cooling system as claimed in claim 3 is characterized in that: the water-in and water-out passage on the said motor shaft (3) (31,32) lays respectively at annulus (6) two symmetrical sides radially.

5. motor cooling system as claimed in claim 1 is characterized in that: said cooling fluid is a kind of in cold oil and the cooling water.