CN210468991U - High-speed motor with main shaft heat radiation structure - Google Patents
High-speed motor with main shaft heat radiation structure Download PDFInfo
- Publication number
- CN210468991U CN210468991U CN201921328497.4U CN201921328497U CN210468991U CN 210468991 U CN210468991 U CN 210468991U CN 201921328497 U CN201921328497 U CN 201921328497U CN 210468991 U CN210468991 U CN 210468991U
- Authority
- CN
- China
- Prior art keywords
- stator core
- main shaft
- speed motor
- spindle
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 230000017525 heat dissipation Effects 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model provides a high-speed motor with main shaft heat radiation structure relates to the motor cooling field. The high-speed motor with the main shaft heat radiation structure comprises a motor shell, a stator core, a main shaft and a rotor, wherein the main shaft and the rotor are rotatably installed inside the stator core, a cooling sleeve is arranged between the motor shell and the stator core, a heat exchange channel for gas circulation is reserved between the stator core and the cooling sleeve, an air hole is formed in the peripheral wall of the stator core, and the air hole is communicated with the inner space of the heat exchange channel and the stator core. The gas pocket intercommunication stator core's the space of inside, outside both sides, the heat that makes main shaft and rotor send can be through the outside of gas pocket transmission to stator core, has avoided the heat to pile up in stator core's inside, drives the heat through gas flow and outwards diffuses, with the inner wall full contact heat transfer of cooling jacket, realizes the effective cooling heat dissipation to main shaft and rotor, prevents that the heat from piling up on the main shaft and arousing high temperature, has guaranteed high-speed motor's work precision and life.
Description
Technical Field
The utility model relates to a motor cooling technical field especially relates to a high-speed motor with main shaft heat radiation structure.
Background
The motor is a common power device, and the purpose of driving is realized by converting electric energy into mechanical energy. With the development of high-speed machining technology, a high-speed spindle becomes a key technology, a large amount of heat is generated due to inevitable friction in the process of high-speed rotation of the spindle, the spindle is thermally deformed at high temperature, and the machining precision is affected.
Generally, a cooling jacket is adopted to cool the interior of the motor, for example, the chinese utility model patent with the publication number CN207218462U and publication date 2018.04.10 discloses a cooling structure for a stator of a high-speed motor, and specifically discloses a high-speed motor comprising a motor shell, a stator assembly and a rotor assembly, a cooling water jacket is arranged between the motor shell and the stator component and is integrally cast by heat conduction materials, the cooling water jacket is provided with a water channel for cooling water circulation and a water inlet and a water outlet which are arranged at the two ends of the water channel, the cooling water jacket is sleeved on the outer circumference of the stator component, the motor shell is provided with a water inlet pipe joint and a water outlet pipe joint, the water inlet pipe joint is connected with the water inlet, the water outlet pipe joint is connected with the water outlet, so that cooling water can get into cooling jacket's water inlet through inlet tube joint, after the water course of flowing through, flow out by outlet pipe joint to the realization is to motor casing and stator module heat dissipation process.
The cooling water that circulates among the cooling water jacket dispels the heat to stator module, however, the motor is at high-speed operation in-process, and a large amount of heats that the main shaft produced receive stator module's separation, can not carry out effective heat transfer with cooling water jacket for the heat is piled up on the main shaft and is aroused high temperature, influences the work precision and the life of motor.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, an object of the utility model is to provide a high-speed motor with main shaft heat radiation structure to solve the motor at high-speed operation in-process, a large amount of heats are piled up on the main shaft and are aroused the high temperature, influence the work precision and the life's of motor problem.
The utility model discloses a high-speed motor with main shaft heat radiation structure's technical scheme does:
high-speed motor with main shaft heat radiation structure includes motor housing, sets up stator core in motor housing, rotates and installs main shaft and the rotor inside stator core, be equipped with the cooling jacket between motor housing and the stator core, it has the heat transfer passageway of air feed circulation to reserve between stator core and the cooling jacket, the gas pocket has been seted up on stator core's the periphery wall, the gas pocket intercommunication the inner space of heat transfer passageway and stator core.
Has the advantages that: gas pocket intercommunication heat transfer passageway and stator core's inner space, through gas pocket intercommunication stator core's interior, the space of outer both sides, the heat that makes main shaft and rotor send can be transmitted to stator core's outside through the gas pocket, heat has been avoided piling up in stator core's inside, drive heat outdiffusion through the gas flow, and with the internal perisporium of cooling jacket full contact heat transfer, realize the effective cooling heat dissipation to main shaft and rotor, prevent that the heat from piling up on the main shaft and arousing the high temperature, high-speed motor's work precision and life have been guaranteed.
Further, the stator core is a cylindrical structure with a wire embedding groove formed in the inner peripheral wall, and the air hole is formed in the bottom wall of the wire embedding groove.
Further, in order to prevent the air flow disturbance from bringing impurities into the stator core, an air hole protective cover is arranged on the peripheral wall of the stator core, the air hole protective cover is arranged at the outer side of the air hole at intervals, and a circulation channel is reserved between the air hole protective cover and the peripheral wall of the stator core.
Furthermore, in order to enable the gas on the inner side and the gas on the outer side of the stator core to uniformly perform circulating heat exchange, a plurality of gas holes are arranged on the outer peripheral wall of the stator core at intervals in the circumferential direction.
Furthermore, a plurality of the air holes are annularly arranged around the axis of the stator core, and at least two circles are arranged at intervals along the axis direction of the stator core.
Furthermore, in order to enable the internal hot gas to smoothly flow to the outer side of the stator core, the discharging speed of the internal hot gas is increased, and meanwhile, the cold gas after heat exchange can be more smoothly returned to the inside of the stator core, the gas holes comprise a first gas hole and a second gas hole, the extending direction of the first gas hole is inclined from inside to outside towards the rotating direction of the rotor, and the extending direction of the first gas hole is tangent to the rotating outer contour of the rotor; the extending direction of the second air hole is inclined from inside to outside towards the opposite direction of the rotation of the rotor.
Furthermore, in order to further improve the cooling effect of the motor, air humidified by the fluorinated liquid flows through the motor housing.
Furthermore, in order to accelerate the gas flow velocity, the surface of the main shaft is provided with a disturbance structure extending along the axial direction of the main shaft.
Furthermore, the perturbation structure is a groove extending along the axis direction of the main shaft, and the groove is circumferentially arranged on the surface of the main shaft at intervals.
Further, in order to simplify the arrangement and formation of the air holes, the air holes are arranged to extend in the radial direction of the main shaft.
Drawings
Fig. 1 is a schematic cross-sectional view of a high-speed motor according to an embodiment 1 of the present invention, which has a spindle heat dissipation structure;
FIG. 2 is a cross-sectional schematic view of the stator core of FIG. 1;
FIG. 3 is a side view of the stator core of FIG. 2 showing a first air hole;
FIG. 4 is a side view of the stator core of FIG. 2 showing a second air hole;
fig. 5 is a front view of the spindle of fig. 1.
In the figure: 1-motor shell, 2-stator core, 20-wire embedding groove, 22-air hole, 23-air hole protective cover, 3-main shaft, 30-groove, 31-front bearing, 32-rear bearing, 4-rotor, 5-cooling jacket, 51-cooling liquid inlet and 52-cooling liquid outlet.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a high speed machine with main shaft heat radiation structure's concrete embodiment 1, as shown in fig. 1, high speed machine with main shaft heat radiation structure includes motor housing 1, the stator module of setting in motor housing 1, rotates and installs at the inside main shaft 3 of stator module and rotor 4, is equipped with the front bearing 31 and the rear bearing 32 that are in same axis position in the motor housing 1, and 3 fixed mounting of main shaft are in the inner circle of front bearing 31 and rear bearing 32. Stator module includes stator core 2 and stator winding, and stator core 2 is the cylinder barrel structure, as shown in fig. 2 to fig. 4, has seted up a plurality of rule grooves 20 that extend along the axis direction on stator core 2's the internal perisporium, and rule groove 20 is circumference interval and arranges side by side on stator core 2's the internal perisporium, and stator winding (not shown in the figure) is located in rule groove 20.
Be equipped with cooling jacket 5 between motor housing 1 and stator core 2, cooling jacket 5 is hollow barrel structure, and the well kenozooecium of cooling jacket 5 forms annular runner, and annular runner supplies coolant liquid to flow and takes out the inside heat of motor. The cooling jacket 5 is attached and fixed on the inner wall of the motor shell 1, and a cooling liquid inlet 51 and a cooling liquid outlet 52 are respectively arranged at the radial opposite positions of the cooling jacket 5, so that the cooling liquid entering the cooling jacket 5 is discharged after sufficient heat exchange is carried out in the annular flow passage, and the heat dissipation and cooling efficiency of the cooling jacket 5 is ensured.
In order to prevent the air flow disturbance from bringing impurities into the stator core 2, the outer peripheral wall of the stator core 2 is provided with an air hole protection cover 23, the air hole protection covers 23 are arranged at intervals outside the air holes 22, and a flow passage is reserved between the air hole protection cover 23 and the outer peripheral wall of the stator core 2. When the hot gas inside stator core 2 enters air hole 22, the hot gas is blocked by air hole protective cover 23, the air flow starts to enter the circulation channel in the direction parallel to the outer peripheral wall of stator core 2, then flows through the heat exchange channel between stator core 2 and cooling jacket 5, and the air contacts with the inner peripheral wall of cooling jacket 5 in the heat exchange channel to realize cooling and heat dissipation. Correspondingly, because partial gas flows out from the inside of stator core 2, form the gas pressure difference in stator core 2 inside and outside both sides, outside gas can get into the inside of stator core 2 from other gas pockets 22, thereby formed the heat transfer passageway that the inside circulation of hot gas from stator core 2 reaches between stator core 2 and the cooling jacket 5, gas returns stator core 2's inside after cooling heat dissipation again, both realized the cooling to main shaft 3 and rotor 4, make the inside gas of motor obtain circulation again, guarantee radiating efficiency and effect.
In order to uniformly perform the circulation heat exchange of the gas at the inner and outer sides of the stator core 2, as shown in fig. 2, a plurality of gas holes 22 are annularly arranged around the axis of the stator core 2, and the gas holes 22 are arranged on the outer circumferential wall of the stator core 2 at intervals in the axial direction. In order to make the gas inside the stator core 2 flow out more smoothly, the gas holes 22 include a first gas hole and a second gas hole, wherein the extending direction of the first gas hole is inclined from inside to outside toward the rotating direction of the rotor 4, as shown in fig. 3, and the extending direction of the first gas hole is tangent to the rotating outer contour of the rotor 4, under the rotating disturbance of the main shaft 3 and the rotor 4, the gas inside the stator core 2 moves along the tangential direction tangent to the outer wall of the rotor 4, when the internal gas flowing along the tangential direction passes through the first gas hole, the internal gas can smoothly flow to the outside of the stator core 2 without the blocking effect of the gas hole wall, and the discharging speed of the internal hot gas is increased.
As shown in fig. 4, the extending direction of the second air hole is inclined from inside to outside to the opposite direction of the rotation of the rotor 4, the extending direction of the second air hole is arranged to be crossed with the extending direction of the first air hole, the second air hole is arranged to avoid the direct outward flow of the internal air, so that the air after cooling and heat dissipation can smoothly return to the inside of the stator core 2, the collision of the hot air from inside to outside and the cold air from outside to inside in the same air hole 22 is avoided, and the effective circulation heat exchange of the air is ensured, as shown in fig. 2, wherein the dotted arrows indicate the air flowing direction. The air holes 22 located at the same axial position extend in the same direction, i.e. the first air hole is oriented clockwise around the axis of the spindle 3, or the second air hole is oriented counterclockwise around the axis of the spindle 3. The first air hole extends along the rotating direction of the rotor 4 from inside to outside in an inclined manner, so that the hot gas in the first air hole can smoothly flow out, and the second air hole extends along the rotating direction of the rotor 4 from inside to outside in an inclined manner, so that the cold gas after heat exchange can smoothly return to the inside of the stator core 2.
As shown in fig. 5, a perturbation structure extending along the axis direction of the main shaft is provided on the surface of the main shaft 3, the perturbation structure is a groove 30 extending along the axis direction of the main shaft, and the grooves 30 are circumferentially spaced on the surface of the main shaft 3. Make main shaft 3 have the surface of unsmooth undulation through setting up recess 30, when initiative 3 rotates, the gas that is located near main shaft 3 surface is disturbed more easily, and take place to flow along with main shaft 3's rotation, the circulation direction of inside gas is the same with the tangential direction along the outer wall of rotor 4, inside gas flows out through some gas pockets 22, and cool off the heat dissipation at the heat transfer passageway between stator core 2 and cooling jacket 5, then the cold gas after the cooling circulates through another some gas pockets 22 and returns to the inside of stator core 2, realize gaseous continuous cooling circulation, prevent that the heat from piling up on main shaft 3 and arousing high temperature, the work precision and the life of high-speed motor have been guaranteed.
The utility model discloses a high-speed motor's other concrete embodiments with main shaft heat radiation structure, for the cooling effect of further improvement motor, fluidic gas is not only limited to ordinary air in the motor housing, also can be for the air of fluoridizing the liquid humidification, and the air of fluoridizing the liquid humidification has better heat absorption performance, can realize the quick cooling heat dissipation to main shaft and rotor.
The utility model discloses a high-speed motor's other concrete embodiments with main shaft heat radiation structure, in order to simplify the structure, can be with the gas pocket unity that two kinds of extending direction are the cross arrangement extend along the radial direction of main shaft, also can realize the outside outflow of inside hot gas through a plurality of radially extending's gas pocket to and the inside that returns to stator core of the cold gas circulation after the outside cooling.
The utility model discloses a high-speed motor's other concrete embodiments with main shaft heat radiation structure, in order to simplify stator core's structure, can save the gas pocket safety cover that sets up on stator core's periphery wall and interval arrangement outside the gas pocket, make the hot-air that flows through the gas pocket can directly get into the heat transfer passageway between stator core and the cooling jacket, carry out quick heat transfer with the inner wall contact of cooling jacket.
The utility model discloses an other concrete embodiments of high speed motor with main shaft heat radiation structure, in order to adapt to different use needs, main epaxial disturbance structure not only is limited to the recess, and the disturbance structure also can be for interval arrangement in the sunken or arch on main shaft surface, enables the main shaft equally and has the surface of unsmooth undulation, and then plays the gaseous effect of disturbance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a high-speed motor with main shaft heat radiation structure, includes motor housing, sets up stator core in motor housing, rotates and installs at the inside main shaft of stator core and rotor, characterized by, be equipped with the cooling jacket between motor housing and the stator core, it has the heat transfer passageway of air feed circulation to reserve between stator core and the cooling jacket, the gas pocket has been seted up on stator core's the periphery wall, the gas pocket intercommunication the inner space of heat transfer passageway and stator core.
2. The high-speed motor with the spindle heat dissipation structure as recited in claim 1, wherein the stator core is a cylindrical structure having a slot with an inner peripheral wall, and the air hole is disposed at a bottom wall of the slot.
3. The high-speed motor with the spindle heat dissipation structure as recited in claim 1 or 2, wherein a gas hole protection cover is provided on the outer peripheral wall of the stator core, the gas hole protection cover is arranged at an interval outside the gas hole, and a flow passage is reserved between the gas hole protection cover and the outer peripheral wall of the stator core.
4. The high-speed motor with the spindle heat dissipation structure as recited in claim 1 or 2, wherein a plurality of the air holes are circumferentially arranged at intervals on an outer peripheral wall of the stator core.
5. The high-speed motor with the spindle heat dissipation structure as recited in claim 4, wherein the plurality of air holes are arranged in a ring shape around an axis of the stator core, and at least two turns are arranged at intervals in an axial direction of the stator core.
6. The high-speed motor with the spindle heat dissipation structure as recited in claim 1, wherein the air holes include a first air hole and a second air hole, an extension direction of the first air hole is inclined from inside to outside toward a rotation direction of the rotor, and the extension direction of the first air hole is tangential to a rotation outer contour of the rotor; the extending direction of the second air hole is inclined from inside to outside towards the opposite direction of the rotation of the rotor.
7. The high-speed motor with the spindle heat dissipation structure as recited in claim 1, wherein air humidified with a fluorinated liquid flows through the motor housing.
8. The high-speed motor with a spindle heat dissipation structure as recited in claim 1, wherein the surface of the spindle is provided with a disturbance structure extending in the axial direction of the spindle.
9. The high-speed motor with the spindle heat dissipation structure as recited in claim 8, wherein the perturbation structure is a groove extending along an axial direction of the spindle, and the grooves are circumferentially spaced on a surface of the spindle.
10. The high-speed motor with the spindle heat dissipation structure as recited in claim 1 or 2, wherein the air holes are arranged to extend in a radial direction of the spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921328497.4U CN210468991U (en) | 2019-08-15 | 2019-08-15 | High-speed motor with main shaft heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921328497.4U CN210468991U (en) | 2019-08-15 | 2019-08-15 | High-speed motor with main shaft heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468991U true CN210468991U (en) | 2020-05-05 |
Family
ID=70451741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921328497.4U Active CN210468991U (en) | 2019-08-15 | 2019-08-15 | High-speed motor with main shaft heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210468991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417170A (en) * | 2019-08-15 | 2019-11-05 | 广东合一新材料研究院有限公司 | A kind of high-speed motor with Spindle's heat emission structure |
-
2019
- 2019-08-15 CN CN201921328497.4U patent/CN210468991U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417170A (en) * | 2019-08-15 | 2019-11-05 | 广东合一新材料研究院有限公司 | A kind of high-speed motor with Spindle's heat emission structure |
| CN110417170B (en) * | 2019-08-15 | 2024-05-14 | 广东合一新材料研究院有限公司 | High-speed motor with main shaft heat radiation structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110417170B (en) | High-speed motor with main shaft heat radiation structure | |
| CN113364166B (en) | Motor stator oil cooling structure | |
| US6087744A (en) | Electrical machine | |
| CN114629297B (en) | Liquid cooling motor | |
| CN111969767A (en) | Motor cooling system and motor | |
| CN201925177U (en) | Submersible through-flow pump with planetary gear reducing mechanism | |
| CN210468991U (en) | High-speed motor with main shaft heat radiation structure | |
| CN113098183A (en) | In-wheel motor and in-wheel motor cooling system | |
| CN221614785U (en) | Oil-water composite cooling motor | |
| CN213879562U (en) | Rotor cooling loop of oil-cooled motor | |
| JP2020162338A (en) | Rotary electric machine | |
| CN220510917U (en) | Rotor with cooling fan and gear hub motor | |
| CN219372120U (en) | Motor with a motor housing | |
| CN110445306B (en) | High-efficiency water-cooling heat dissipation structure of high-power density high-protection-level permanent magnet motor | |
| CN112564422A (en) | Outer rotor water-cooling structure of permanent magnet synchronous hub motor | |
| CN218183087U (en) | Special permanent magnet driving device for pulper | |
| JP2024049915A (en) | Rotary electric machine | |
| CN115021437A (en) | Stator module, motor and have its car | |
| CN115800576A (en) | Permanent magnet motor with high-efficiency air-water mixed cooling system | |
| CN117833507A (en) | Stator circumference staggered oil way cooling motor | |
| CN210435949U (en) | Main shaft cooling unit | |
| CN113489220A (en) | Internal circulation heat radiation structure and motor | |
| CN221487520U (en) | Motor, electric assembly and vehicle | |
| CN221487518U (en) | Power assembly circulation system | |
| CN114448150A (en) | Integrated electric drive system cooling structure and integrated electric drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240722 Granted publication date: 20200505 |
|
| PP01 | Preservation of patent right |