CN102299585A

CN102299585A - motor liquid cooling structure

Info

Publication number: CN102299585A
Application number: CN201010218027XA
Authority: CN
Inventors: 刘明; 黎虤
Original assignee: KUNSHAN GONGCHENG ELECTRICAL APPLIANCE CO Ltd
Current assignee: KUNSHAN GONGCHENG ELECTRICAL APPLIANCE CO Ltd
Priority date: 2010-06-28
Filing date: 2010-06-28
Publication date: 2011-12-28

Abstract

The invention discloses a motor liquid cooling structure. A winding is wound at the outer side of a stator iron core of a motor; the stator iron core on which the winding is wound is fixedly arranged on a motor shaft through a support; two axial ends of a shell of the motor are fixedly provided with end covers in a seal mode; an integral moving seal sleeve which is formed by the end covers and the shell is arranged at the outer side of the stator iron core on which the winding is wound; a sealed annular space is formed among the shell, the end covers, a motor shaft and the stator iron core on which the winding is wound, and is provided with a cooling liquid; and the cooling liquid is contained in the annular space. When the motor operates, because of the combined action of the rotation of the shell and the end cover, the stirring of convex ribs at the inner sides of the end covers and the centrifugal force, the cooling liquid moves in the sealed annular space, when the cooling liquid flows through the surfaces of the winding and the stator iron core, the heat on the winding and the stator iron core is taken away, thus the heat is rapidly conducted on the shell and the end covers of the motor, rapid cooling is realized, the motor can not be burned down because of high temperature under the condition of high-speed rotation or high-power operation of the motor, and the service life of the motor is prolonged effectively.

Description

Motor liquid cooling structure

Technical field

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

Background technology

The heat of motor windings generation at present passes to the housing and the end cap of motor by radiation mode, absorbed the diffusing motor outside of arriving, back by housing and end cap, pass through wind-cooling heat dissipating, this radiating mode heat radiation is slow, 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 liquid cooling structure, this motor liquid cooling is simple in structure, 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 liquid cooling structure, the stator core outer felt of motor is wound with winding, the stator core that is tied with winding is fixedly arranged on the motor shaft by support, the housing shaft of motor is to the sealed at both ends end cap that is installed with, 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, described housing, end cap, motor shaft and be tied with the annulus that forms a sealing between the stator core of winding, cooling fluid is placed in this annulus, during machine operation, because the rotation of housing and end cap, cooling fluid annulus in sealing under the acting in conjunction of the stirring of the inboard convex tendon of end cap and centrifugal force produces motion, when cooling fluid is flowed through winding and stator core surface, heat on winding and the stator core is taken away, and heat is distributed fast by housing and end cap, guarantee that winding can effectively not prolong the useful life of motor because of high temperature ageing.

As a further improvement on the present invention, described end cap madial wall is provided with the some convex tendons from the radiation of middle mind-set periphery, cooling fluid is produced flowed, and can increase radiating surface again, further accelerates the motor cooling.

As a further improvement on the present invention, described convex tendon is a linear pattern.

As a further improvement on the present invention, described convex tendon is and end cap cylindrical tangent line off plumb angled straight lines type.

As a further improvement on the present invention, described convex tendon is an arc line type.

As a further improvement on the present invention, the convex tendon of the end cap inboard at described housing two ends is the identical convex tendon of incline direction.

As a further improvement on the present invention, the convex tendon of the end cap inboard at described housing two ends is the opposite convex tendon of incline direction, be between rightabout convex tendon at the two ends end cap when this of convex tendon kind of distribution mode is thrown away cooling fluid and form eddy current, mobile cooling pendular ring is further accelerated the cooling of motor.

As a further improvement on the present invention, described end cap lateral wall is provided with the heat radiation wing of convex rib structure, further accelerates motor radiating.

As a further improvement on the present invention, described cooling fluid is a cold oil, and other any cooling fluids can play cooling effect and also can certainly.

Useful technique effect of the present invention is: the present invention passes 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, in this annulus, add cooling fluid, during machine operation, because the rotation of housing and end cap, under the stirring of the inboard convex tendon of end cap and the acting in conjunction of centrifugal force, cooling fluid produces motion at the annulus of sealing, when cooling fluid is flowed through winding and stator core surface, heat on winding and the stator core is taken away, heat is transmitted on the housing and end cap of motor fast, realize quick heat radiating, even motor also can not burnt by Yin Gaowen under the situation of high speed rotating or high power work, has effectively prolonged the useful life of motor.

Description of drawings

Fig. 1 is an electric machine operation state schematic diagram of the present invention;

Fig. 2 is a motor inactive state schematic diagram of the present invention;

Fig. 3 is the end cap front view;

Fig. 4 be among Fig. 3 A-A to cutaway view.

Embodiment

Embodiment: a kind of motor liquid cooling structure, stator core 1 outer felt of motor is wound with winding 2, the stator core 1 that is tied with winding 2 is fixedly arranged on the motor shaft 3 by support 8, the housing 4 axial sealed at both ends end caps 5 that are installed with of motor, 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 2, described housing 4, end cap 5, motor shaft 3 and be tied with the annulus 6 that forms a circle sealing between the stator core 1 of winding 2, be provided with cooling fluid 7, cooling fluid 7 is placed in this annulus 6, during machine operation, because the rotation of housing 4 and end cap 5, under the stirring of the inboard convex tendon 51 of end cap and the acting in conjunction of centrifugal force, cooling fluid 7 produces motion at the annulus of sealing, when cooling fluid 7 is flowed through winding 2 and stator core 1 surface, heat on winding 2 and the stator core 1 is taken away, by housing 4 and end cap 5 heat is passed fast, guarantee that winding 2 can not burn by Yin Gaowen, effectively prolonged the useful life of motor.

Described end cap 5 madial walls are provided with the some convex tendons 51 from the radiation of middle mind-set periphery, cooling fluid was produced flowed, and can increase radiating surface again, further accelerate the motor cooling.

Described convex tendon 51 is a linear pattern.

Described convex tendon 51 is and end cap 5 cylindrical tangent line off plumb angled straight lines types.

Described convex tendon 51 is an arc line type.

The convex tendon 51 of end cap 5 inboards at described housing 4 two ends is the identical convex tendon of incline direction 51.

The convex tendon 51 of end cap 5 inboards at described housing 4 two ends is the opposite convex tendon of incline direction 51, be 51 of rightabout convex tendons at two ends end cap 5 when this of convex tendon kind of distribution mode is thrown away cooling fluid and form eddy current, mobile cooling pendular ring is further accelerated the cooling of motor.

Described end cap 5 lateral walls are provided with the heat radiation wing of convex rib structure, can further accelerate the motor cooling.

Described cooling fluid is a cold oil, and other any cooling fluids can play cooling effect and also can certainly.

Claims

1. motor liquid cooling structure, the stator core of motor (1) outer felt is wound with winding (2), the stator core (1) that is tied with winding (2) is fixedly arranged on the motor shaft (3) by support (8), the housing of motor (4) is the sealed at both ends end cap (5) that is installed with axially, 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 (2), it is characterized in that: described 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 (2), cooling fluid (7) is placed in this annulus (6);

2. a kind of motor liquid cooling structure as claimed in claim 1 is characterized in that: described end cap (5) madial wall is provided with the some convex tendons (51) from the radiation of middle mind-set periphery.

3. a kind of motor liquid cooling structure as claimed in claim 2 is characterized in that: described convex tendon (51) is a linear pattern.

4. a kind of motor liquid cooling structure as claimed in claim 3 is characterized in that: described convex tendon (51) is and end cap (5) cylindrical tangent line off plumb angled straight lines type.

5. a kind of motor liquid cooling structure as claimed in claim 2 is characterized in that: described convex tendon (51) is an arc line type.

6. as claim 4 or 5 described a kind of motor liquid cooling structures, it is characterized in that: the inboard convex tendon (51) of the end cap (5) at described housing (4) two ends is the identical convex tendon (51) of incline direction.

7. as claim 4 or 5 described a kind of motor liquid cooling structures, it is characterized in that: the inboard convex tendon (51) of the end cap (5) at described housing (4) two ends is the opposite convex tendon (51) of incline direction.

8. a kind of motor liquid cooling structure as claimed in claim 2 is characterized in that: described end cap (5) lateral wall is provided with the heat radiation wing of convex rib structure.

9. a kind of motor liquid cooling structure as claimed in claim 1, it is characterized in that: described cooling fluid is a cold oil.