CN216056503U

CN216056503U - Easy radiating disk motor stator

Info

Publication number: CN216056503U
Application number: CN202122010198.XU
Authority: CN
Inventors: 陈栋; 尤壤; 曹恩瑞
Original assignee: Hangzhou Zhonghao Electric Technology Co ltd
Current assignee: Hangzhou Zhonghao Electric Technology Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-15
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses an easy-to-radiate disc type motor stator which comprises a shell, a stator support and an iron core winding, wherein the iron core winding comprises an iron core and a winding arranged on the surface of the iron core, the stator support is provided with mounting holes uniformly distributed along the circumferential direction of the stator support, the iron core winding is arranged in the mounting holes, the inner wall of each mounting hole is abutted against the winding, and a water cooling channel for cooling the winding is arranged between each mounting hole and the corresponding mounting hole. The utility model can rapidly lead out the heat generated on the winding to achieve the purpose of rapid cooling, and meanwhile, the utility model has compact structure and saves the volume of the original water channel structure arranged on the shell.

Description

Easy radiating disk motor stator

Technical Field

The utility model relates to the technical field of disc type motors, in particular to a disc type motor stator easy to radiate heat.

Background

The disk motor is also called an axial magnetic field motor, and the direction of the magnetic field inside the motor is along the axial direction. Axial field motors are also known as disc motors because they are generally flat. The disk motor is particularly suitable for occasions with strict requirements on the volume and the weight of the motor due to higher iron core utilization rate, higher power density and higher torque density. In the prior art, a single-stator double-rotor disc motor, a stator armature core and a winding are fixed on a shell of the motor through a stator front end plate and a stator rear end plate, a bearing of a motor rotor is arranged at the inner circumference of the motor stator, the inner circumference of the stator is used as a bearing chamber, the stator of the motor plays the roles of fixing the bearing and supporting a rotor system, the bearing is supported by the stator in the structure, and the stator is the largest heating source in the running process of the motor, the high temperature of the stator can be transmitted to the bearing chamber and the bearing, the reliability and the service life of the bearing are reduced, and the risk of bearing failure is increased. A common heat dissipation method is water cooling, but many disc motors need to use a water tank with a large amount of water in the heat dissipation process, and an additional water channel structure is arranged, so that the size of the motor is increased, and the heat dissipation efficiency is poor. For example, an "amorphous stator water-cooled permanent magnet disc motor" disclosed in chinese patent literature has a publication number of CN 102904385A. Including the casing, locate the front end housing of casing one end, locate the first water tank of the casing other end, be located the inside amorphous stator of locating on the first water tank of casing, be located the main shaft in the amorphous stator internal diameter and be located the inside main epaxial permanent magnet rotor of locating of casing, the main shaft is terminal to be connected with first water tank through first rotary part, the interlude passes through second rotary part and is connected with the front end housing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a disc type motor stator with good heat dissipation effect and small water consumption, aiming at overcoming the problems of poor heat dissipation effect and large water consumption in the water-cooling heat dissipation process of the existing disc type motor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an easy radiating disk motor stator, includes shell, stator support and iron core winding, the iron core winding includes the iron core to and establish the winding on iron core surface, be equipped with on the stator support along the evenly arranged mounting hole of stator support circumference, be equipped with the iron core winding in the mounting hole, the inner wall and the winding of mounting hole offset, be equipped with the water-cooling passageway that is used for cooling off the winding between mounting hole and the mounting hole. In the use process of the motor, a large amount of heat can be generated by the winding on the surface of the iron core, and the water cooling channel is arranged in the stator bracket, so that on one hand, the winding is in contact with the water cooling channel, the heat generated by the winding can be directly absorbed, and the aim of quickly cooling is fulfilled; on the other hand, the volume of the original water channel structure arranged on the shell is saved.

Preferably, the water cooling channels are provided with a plurality of groups, and a plurality of water cooling units distributed along the axial direction are arranged in each group of water cooling channels. The arrangement of the multiple groups of water cooling channels and the multiple water cooling units increases the heat dissipation area of the iron core winding, and the improvement of the heat dissipation efficiency is facilitated.

Preferably, the outer side of the stator support is circumferentially provided with a plurality of outer circulation channels, the matching part of the inner side of the stator support and the shaft sleeve is provided with a plurality of inner circulation channels, and the inner circulation channels and the outer circulation channels are communicated with the inner circulation channels in a staggered manner through water cooling channels. Under the conduction effect of the water cooling channel, cooling water in the outer circulation channel can enter the inner circulation channel, and cooling water in the inner circulation channel can enter the outer circulation channel, so that the phenomenon that the cooling water flows back in the circulation process to cause poor cooling effect is avoided.

Preferably, both ends of the outer circulation channel are inclined planes. The cooling water is prevented from being deposited at the end of the outer circulation passage.

Preferably, an outer ring sleeve is arranged on the outer side wall of the stator support, an inner ring sleeve is arranged on the inner side wall of the stator support, and the outer side wall and the outer ring sleeve and the inner side wall and the inner ring sleeve are in interference fit. The arrangement of the outer ring sleeve and the inner ring sleeve has a sealing effect on the outer circulation channel and the inner circulation channel, so that the leakage of cooling water is avoided.

Preferably, the gap between the stator support and the iron core winding is filled with pouring sealant. The heat dispersion of casting glue is good, can strengthen thermal conduction, is favorable to thermal dissipation more, and in addition, the casting glue can be used to the fixed of iron core winding, reduces the use of screw.

Preferably, the housing is provided with a cooling water inlet and a cooling water outlet. In the utility model, because of the arrangement of the outer circulation channel, the water cooling channel and the inner circulation channel, cooling water does not need to enter and exit from multiple ports, and only needs one cooling water inlet and one cooling water outlet, the whole cooling process can be completed, the influence of the multiple cooling water inlets and outlets on the sealing performance of the whole stator is avoided, and the cooling water absorbing the heat of the winding after passing through the stator support can enter the stator support from the cooling water inlet again to absorb the heat generated by the winding.

Therefore, the utility model has the following beneficial effects: (1) the arrangement of the cooling water channel can help to rapidly guide out heat on the winding and rapidly cool; (2) the cooling water channel is arranged in the stator bracket, so that the volume of the original water channel structure of the shell is saved; (3) the outer circulation channel is communicated with the inner circulation channel in a staggered manner through the cooling water channel, so that the circulation of cooling water in the whole stator bracket is ensured, and the number of cooling water inlets and outlets is reduced; (4) the interference fit of the outer ring sleeve and the inner ring sleeve with the stator support is beneficial to forming sealing for the outer circulation channel and the inner circulation channel, and the leakage of cooling water is prevented.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of a stator frame according to the present invention.

Fig. 4 is a side view of a stator frame in the present invention.

Fig. 5 is a cross-sectional view of a stator frame according to the present invention.

In the figure: 1. the stator comprises a shell, 11, a cooling water inlet, 12, a cooling water outlet, 2, a stator support, 21, an outer ring sleeve, 22, an inner ring sleeve, 3, an iron core winding, 31, an iron core, 32, a winding, 4, a mounting hole, 5, a water cooling channel, 51, a water cooling unit, 52, an outer ring flow channel, 53 and an inner ring flow channel.

Detailed Description

The utility model is further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1 to 5, an easy-to-radiate disc motor stator includes a housing 1, a stator support 2 and an iron core winding 3, where the iron core winding 3 includes an iron core 31 and a winding 32 disposed on a surface of the iron core 31, the stator support 2 is provided with mounting holes 4 uniformly arranged along a circumferential direction of the stator support 2, the iron core winding 3 is disposed in the mounting holes 4, an inner wall of the mounting hole 4 abuts against the winding 32, and a water cooling channel 5 for cooling the iron core winding 3 is disposed between the mounting hole 4 and the mounting hole 4. The water-cooling channels 5 are provided with a plurality of groups, and a plurality of water-cooling units 51 distributed along the axial direction are arranged in each group of water-cooling channels 5. The outer side of the stator support 2 is circumferentially provided with a plurality of outer circulation channels 52, the matching part of the inner side of the stator support and the shaft sleeve is provided with a plurality of inner circulation channels 53, and the inner circulation channels 52 and the outer circulation channels 53 are communicated in a staggered mode through the water cooling channels 5. Both ends of the outer circulation passage 52 are inclined. The outer side wall of the stator support 2 is provided with an outer ring sleeve 21, the inner side wall of the stator support 2 is provided with an inner ring sleeve 22, and the outer side wall and the outer ring sleeve 21 and the inner side wall and the inner ring sleeve 22 are in interference fit. And a gap between the stator support 2 and the iron core winding 3 is filled with pouring sealant. The shell 1 is provided with a cooling water inlet 11 and a cooling water outlet 12. In the use process of the motor, the winding 32 on the surface of the iron core 31 can generate a large amount of heat, and the water cooling channel 5 is arranged in the stator bracket 2, so that on one hand, the winding 32 is in contact with the water cooling channel 5, the heat generated by the winding 32 can be taken away, and the purpose of rapid cooling is achieved; on the other hand, the volume of the shell 1 originally provided with the water channel structure is saved.

In some specific embodiments, the number of the groups of the water cooling channels 5 is the same as the number of the

core windings

3, and 4 water cooling units 51 distributed along the axial direction may be arranged inside each group of the water cooling channels 5. The arrangement of the multiple sets of water cooling channels 5 and the multiple water cooling units 51 can increase the heat dissipation area of the winding 32, which helps to improve the heat dissipation efficiency.

In some specific embodiments, the outer annular flow channels 52 may be selected to be 4, divided into a first outer annular flow channel, a second outer annular flow channel, a third outer annular flow channel, and a fourth outer annular flow channel, and the inner annular flow channels 53 may be selected to be 3, divided into a first inner annular flow channel, a second inner annular flow channel, and a third inner annular flow channel. The first outer circulation channel is connected with the cooling water inlet and is communicated with the first inner circulation channel through the water cooling channel, the first inner circulation channel is communicated with the second outer circulation channel through the water cooling channel, the second outer circulation channel is communicated with the second inner circulation channel through the water cooling channel, the second inner circulation channel is communicated with the third outer circulation channel through the water cooling channel, the third outer circulation channel is communicated with the third inner circulation channel through the water cooling channel, the third inner circulation channel is communicated with the fourth outer circulation channel through the water cooling channel, and the fourth outer circulation channel is communicated with the cooling water outlet. The cooling water enters the water cooling channel 5 through the outer circulation channel 52 and then enters the inner circulation channel 53 from the water cooling channel 5, so that the backflow phenomenon is avoided, and the cooling effect is further enhanced.

Claims

1. The utility model provides an easy radiating disk motor stator, includes shell, stator support and iron core winding, the iron core winding includes the iron core to and establish the winding on iron core surface, its characterized in that, be equipped with on the stator support along the evenly arranged mounting hole of stator support circumference, be equipped with the iron core winding in the mounting hole, the inner wall and the winding of mounting hole offset, be equipped with the water-cooling passageway that is used for cooling off the winding between mounting hole and the mounting hole.

2. The easy-to-radiate disc motor stator as claimed in claim 1, wherein the water cooling channels are provided in groups, and each group of water cooling channels is internally provided with a plurality of water cooling units distributed along the axial direction.

3. The easy-to-radiate disc motor stator as claimed in claim 1, wherein the stator frame has a plurality of outer circulation channels formed along the circumference of the outer side thereof, and a plurality of inner circulation channels formed at the inner side thereof and engaged with the sleeve, the outer circulation channels being alternately communicated with the inner circulation channels through water cooling channels.

4. The disc motor stator easy to dissipate heat of claim 3, wherein both ends of the outer circulation channel are beveled.

5. The easy-to-dissipate disc motor stator as claimed in claim 1, wherein the outer side wall of the stator frame is provided with an outer ring sleeve, the inner side wall of the stator frame is provided with an inner ring sleeve, and the outer side wall and the outer ring sleeve and the inner side wall and the inner ring sleeve are in interference fit.

6. The easy-to-dissipate-heat disc motor stator as recited in claim 1, wherein a gap between the stator frame and the core winding is filled with a potting adhesive.

7. An easy-to-dissipate-heat disc motor stator as set forth in claim 1, wherein the housing is provided with a cooling water inlet and a cooling water outlet.