CN208128070U - Motor cooling - Google Patents
Motor cooling Download PDFInfo
- Publication number
- CN208128070U CN208128070U CN201820606274.9U CN201820606274U CN208128070U CN 208128070 U CN208128070 U CN 208128070U CN 201820606274 U CN201820606274 U CN 201820606274U CN 208128070 U CN208128070 U CN 208128070U
- Authority
- CN
- China
- Prior art keywords
- air duct
- motor
- circulating air
- dynamical element
- rotor
- 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
Abstract
The utility model discloses a kind of motor coolings, including cooling water channel, internal circulating air duct and air duct dynamical element, the cooling water channel to be arranged in motor case；The internal circulating air duct is surrounded by motor case, end cap, internal bearing cover, stator core and rotor；Dynamical element installation chamber is provided on the casing, the air duct dynamical element is mounted in dynamical element installation chamber.There is circulating air duct inside the utility model motor, good cooling results can reach high power density；Rotor good cooling results improve the operation stability of motor magnetic material；Motor bearings good cooling results improve the service life of bearing；Cooling wind is recycled in inside, does not need that heat release hole is arranged on casing, therefore motor can use all-sealed structure, and noise is small.
Description
Technical field
The utility model belongs to technical field of motors, more particularly to a kind of motor cooling.
Background technique
Permanent magnet synchronous motor can generate loss during progress electric energy is converted into mechanical energy, these losses are motor temperature
Raised heat source is spent, especially to high power permanent magnet synchronous motor, loss is big, and motor temperature rise is high, be easy to cause asking for magnet steel demagnetization
Topic, very big influence is caused to motor normal use.The reasonable design motor type of cooling, can not only improve motor unit volume
Power density, and can also improve motor work stability and motor insulation structure service life.
Traditional permanent magnet synchronous motor, which cools down, generally cools down motor housing by the cooling motor housing in air duct or by water channel,
However in practical application, permanent magnet synchronous motor is generally matched with frequency converter, and the characteristic of transducer power device determines defeated
Current waveform contains a large amount of harmonic waves out, these harmonic waves can incude current vortex on permanent magnet, has an impact to permanent magnet fever.It passes
The system single type of cooling of motor only has preferable cooling to the stationary part of motor, and cooling effect is poor, if not to Permanent Magnet and Electric
The rotor of machine is cooled down, and there are biggish high temperature demagnetization risks, and then influence the use of permanent magnet synchronous motor.
Therefore, the new construction type of cooling is researched and developed, cooling efficiency is promoted, improves cooling effect of motor, improves permanent magnet synchronous electric
Machine power density is of great importance.
Utility model content
For the above the deficiencies in the prior art, the purpose of this utility model is to provide a kind of motor coolings, improve
Cooling effect of motor extends the service life of motor.
In order to achieve the above objectives, the technical solution of the utility model is：
A kind of motor cooling, including：
Cooling water channel, the cooling water channel are arranged in motor case；
Internal circulating air duct, the internal circulating air duct is by motor case, end cap, internal bearing cover, stator core and rotor
It surrounds；
Air duct dynamical element, dynamical element installation chamber is provided on the casing, and the air duct dynamical element is mounted on
Dynamical element is installed in chamber；The dynamical element installation chamber offers air inlet and air outlet, the internal circulating air duct
With circulating air duct gas outlet and circulating air duct air inlet, the air inlet of the circulating air duct gas outlet and dynamical element installation chamber
Mouth connection, the circulating air duct air inlet are connected to the air outlet of dynamical element installation chamber.
The utility model is provided with cooling water channel in motor case, and the loss that most of stator winding and iron core generate is logical
Sluice inner wall and cooling water exchange heat, and loss that stator winding end generates, bearing friction loss, magnet steel eddy-current loss pass through interior
Portion's circulating air duct is cooled down, and in this way under the collective effect of cooling water channel and internal circulating air duct, the cooling efficiency of motor is big
It is big to be promoted, the cooling effect of motor is improved, the power that can not only improve motor unit volume is close, and can also improve motor work
The stability of work and the service life of motor insulation structure.
Further, the rotor is hollow structure, and the both ends of rotor offer the radial direction being connected to its inner passage
Ventilation hole；The motor is internally provided with two-way circulating air duct, wherein the gap between stator core and rotor is flowed through all the way,
Another way is flowed through from sleeve rotor.The purpose designed in this way cool down the inside and outside of rotor can, improve to permanent magnetism
The cooling effect of rotor, avoid temperature it is excessively high and caused by demagnetize risk, ensure that the service life of magneto.
Further, the air inlet of the dynamical element installation chamber is provided with wind path pod.Pod is closing,
Main function is drained to internal circulated air, and internal circulated air is preferably recycled under the action of dynamical element
It utilizes.
Further, partition is provided in the internal circulating air duct.The main function of partition be by internal circulating air duct every
It is disconnected, guarantee that internal circulating air duct does not generate reflux.
Further, heat exchanger is provided at circulating air duct air inlet in the internal circulating air duct.The master of heat exchanger
Acting on is exchanged heat to cooling wind, and the cooling wind after heat exchange again radiates to motor inner components, is so recycled
It utilizes.Certainly, heat exchanger is preferably disposed at the shell of motor cooling water channel, so that structure is more compact.
Further, several cooling fins that direction arrangement is circulated along wind path are provided on the heat exchanger.It sets in this way
The purpose of meter mainly considers that two aspect factors, one side factor are to guarantee enough heat dissipation areas, and another aspect factor is also wanted
Consider the influence to motor inside wind path windage.
Further, the rotor is made of jackshaft with the end axis that jackshaft both ends are arranged in, and the jackshaft is hollow
Structure, and the surface mount of jackshaft has magnet steel；One end of the end axis has hollow section, and the part of the hollow section is plugged into
In the end of jackshaft, and hollow section is connected to the inner passage of jackshaft；The rest part of hollow section reaches outside jackshaft,
And radial air openings are provided on extension.
Rotor uses segment design, and jackshaft is hollow shaft, holds the part hollow of axis, utilizes the radial direction of end shaft hollow part
Ventilation hole forms access, and solid section is installed for bearing, better assure that the intensity of two ends of rotor bearing portion.
The beneficial effects of the utility model are：
1, there is circulating air duct inside motor, good cooling results can reach high power density.
2, rotor good cooling results improve the operation stability of motor magnetic material.
3, motor bearings good cooling results improve the service life of bearing.
4, cooling wind is recycled in inside, does not need that heat release hole is arranged on casing, therefore motor can be using complete close
Seal structure, noise are small.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Wherein two width of type for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the sectional view of the utility model embodiment motor cooling.
Fig. 2 is the schematic diagram that cooling water channel and internal circulating air duct are pointed out on the basis of Fig. 1.
Fig. 3 is the heat exchanger structure figure of the utility model embodiment.
Fig. 4 is the rotor structure figure of the utility model embodiment.
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the utility model is clearly and completely described, it is clear that retouched
The embodiment stated is only the preferred embodiment of the utility model, instead of all the embodiments.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
Embodiment
As depicted in figs. 1 and 2, a kind of motor cooling, including：
Cooling water channel 16, the cooling water channel 16 is arranged in motor case 7, when it is implemented, can be in motor case 7
Interior setting water channel outer wall 14 and water channel inner wall 15, the gap between water channel outer wall 14 and water channel inner wall 15 constitute cooling water channel 16；
Internal circulating air duct, the internal circulating air duct are determined by motor case 7, drive end bearing bracket 1, fore bearing inner cover 2, band winding
Sub- iron core 10, rotor 9, rear end cap 11 and rear bearing inner cover 12 surround；
Air duct dynamical element, air duct dynamical element use centrifugal fan 4, and effect mainly generates power to cooling wind,
Cooling wind is set to flow in internal circulating air duct, to cool down to motor inner components；It is followed to improve inside
Pressure and reduction fan noise, centrifugal fan 4 in ring air duct can choose multiple-fin centrifugal fan；It is provided on casing 7
Dynamical element installs chamber, and dynamical element installation chamber can be to be made of the centrifugal fan seat 3 with spiral case and cover board, band spiral case
Centrifugal fan seat 3 modes such as be fixed by bolts and be connected on casing 7, cover board is connected on the centrifugal fan seat 3 with spiral case,
To constitute complete chamber, centrifugal fan 4 is mounted in the chamber, is connected to centrifugal fan seat 3 by fan fixing screws 5
On the cover board at top；Dynamical element installation chamber offers air inlet and air outlet, and the internal circulating air duct has circulated air
Road gas outlet and circulating air duct air inlet, the circulating air duct gas outlet are connected to the air inlet of dynamical element installation chamber, institute
Circulating air duct air inlet is stated to be connected to the air outlet of dynamical element installation chamber.
When motor works, the loss that most of stator winding and iron core generate is exchanged heat by water channel inner wall 15 and cooling water,
The loss of stator winding end generation, bearing friction loss, magnet steel eddy-current loss are cooled down by internal circulating air duct, in this way
Under the collective effect of cooling water channel and internal circulating air duct, the cooling efficiency of motor is greatly promoted, and improves the cooling of motor
Effect, the power that can not only improve motor unit volume is close, and can also improve the stability and motor insulation knot of motor work
The service life of structure.
In the present embodiment, between stator core 10 and rotor 9 there are air gap, rotor 9 is hollow structure, and rotor 9
Both ends offer the radial air openings being connected to its inner passage, the purpose designed in this way is that two can be formed inside motor
Road circulating air duct is the first cooling air duct 17 and the second cooling air duct 18 respectively, wherein the first cooling air duct 17 is from stator core
Air gap between 10 and rotor 9 flows through, and the second cooling air duct 18 is flowed through from sleeve rotor.The purpose designed in this way makes rotor 9
It is inside and outside can be cooled down, improve the cooling effect to permanent magnet machine rotor, avoid temperature it is excessively high and caused by move back
Magnetic wind danger, ensure that the service life of magneto.
In the present embodiment, the air inlet of the dynamical element installation chamber is provided with wind path pod 6, wind path water conservancy diversion
Cover 6 is closing, and main function is drained to internal circulated air, enables internal circulated air in the effect of dynamical element
Under preferably recycle.
In the present embodiment, partition 13 is provided in the internal circulating air duct.The main function of partition 13 is will be internal
Circulating air duct partition guarantees that internal circulating air duct does not generate reflux.
In the present embodiment, heat exchanger 8 is provided at circulating air duct air inlet in the internal circulating air duct.Heat exchange
The main function of device 8 is exchanged heat to cooling wind, and the cooling wind after heat exchange again radiates to motor inner components, such as
This is recycled.Certainly, heat exchanger 8 is preferably disposed at the shell of motor cooling water channel 16, so that structure is more compact.
As shown in figure 3, in the present embodiment, being provided with several on the heat exchanger 8 and circulating direction cloth along wind path
The cooling fin set.The purpose designed in this way mainly considers that two aspect factors, one side factor are to guarantee enough heat dissipation areas,
Another aspect factor is also contemplated that the influence to motor inside wind path windage.
As shown in figure 4, in the present embodiment, the rotor 9 is by jackshaft 91 and the end axis that 91 both ends of jackshaft are arranged in
93 compositions, the jackshaft 91 is hollow structure, and the surface mount of jackshaft 91 has magnet steel 92；One end of the end axis 93 has
There is hollow section, (sets up separately plug division in the end that the part of the hollow section is plugged into jackshaft 91 by the way of interference fit
It is equipped with seam allowance), and hollow section is connected to the inner passage of jackshaft 91；The rest part of hollow section reaches outside jackshaft 91,
And multiple radial air openings are provided on extension.That is, rotor 9 uses segment design, jackshaft 91 is hollow
Axis holds the part hollow of axis 93, forms complete wind path using the radial air openings of 93 hollow parts of end axis, solid section is used for
Bearing installation, better assures that the intensity of two ends of rotor bearing portion.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of motor cooling, which is characterized in that including：
Cooling water channel, the cooling water channel are arranged in motor case；
Internal circulating air duct, the internal circulating air duct are surrounded by motor case, end cap, internal bearing cover, stator core and rotor；
Air duct dynamical element, dynamical element installation chamber is provided on the casing, and the air duct dynamical element is mounted on power
Element is installed in chamber；The dynamical element installation chamber offers air inlet and air outlet, and the internal circulating air duct has
The air inlet of circulating air duct gas outlet and circulating air duct air inlet, the circulating air duct gas outlet and dynamical element installation chamber connects
Logical, the circulating air duct air inlet is connected to the air outlet of dynamical element installation chamber.
2. motor cooling according to claim 1, it is characterised in that：The rotor is hollow structure, and rotor
Both ends offer the radial air openings being connected to its inner passage；The motor is internally provided with two-way circulating air duct, wherein
The gap between stator core and rotor is flowed through all the way, and another way is flowed through from sleeve rotor.
3. motor cooling according to claim 1, it is characterised in that：The air inlet of the dynamical element installation chamber
Place is provided with wind path pod.
4. motor cooling according to claim 1, it is characterised in that：Be provided in the internal circulating air duct every
Plate.
5. motor cooling according to claim 1, it is characterised in that：Close to circulated air in the internal circulating air duct
Heat exchanger is provided at the air inlet of road.
6. motor cooling according to claim 5, it is characterised in that：Several are provided on the heat exchanger along wind
Road circulates the cooling fin of direction arrangement.
7. motor cooling according to claim 1, it is characterised in that：The rotor is by jackshaft and is arranged in centre
The end axis at axis both ends forms, and the jackshaft is hollow structure, and the surface mount of jackshaft has magnet steel；One end of the end axis
With hollow section, the part of the hollow section is plugged into the end of jackshaft, and the inner passage of hollow section and jackshaft connects
It is logical；The rest part of hollow section reaches outside jackshaft, and radial air openings are provided on extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606274.9U CN208128070U (en) | 2018-04-26 | 2018-04-26 | Motor cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606274.9U CN208128070U (en) | 2018-04-26 | 2018-04-26 | Motor cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208128070U true CN208128070U (en) | 2018-11-20 |
Family
ID=64187648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820606274.9U Active CN208128070U (en) | 2018-04-26 | 2018-04-26 | Motor cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208128070U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347135A (en) * | 2018-04-26 | 2018-07-31 | 重庆智驱科技有限公司 | Motor cooling |
| CN110433930A (en) * | 2019-01-01 | 2019-11-12 | 仲从宝 | On set head centrifugation blade pump drainage wind-cooling heat dissipating meat grinder |
| CN116667567A (en) * | 2023-07-31 | 2023-08-29 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
-
2018
- 2018-04-26 CN CN201820606274.9U patent/CN208128070U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347135A (en) * | 2018-04-26 | 2018-07-31 | 重庆智驱科技有限公司 | Motor cooling |
| CN110433930A (en) * | 2019-01-01 | 2019-11-12 | 仲从宝 | On set head centrifugation blade pump drainage wind-cooling heat dissipating meat grinder |
| CN116667567A (en) * | 2023-07-31 | 2023-08-29 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
| CN116667567B (en) * | 2023-07-31 | 2023-10-27 | 江苏嘉轩智能工业科技股份有限公司 | Motor rotor and high-speed motor thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017370503B2 (en) | Motor rotor support frame and motor | |
| TWI782944B (en) | Motor cooling structure, power motor and electric drive system | |
| CN208128070U (en) | Motor cooling | |
| CN107231066A (en) | A kind of high power density lightweight concentratred winding water-cooled outer rotor permagnetic synchronous motor | |
| WO2020220836A1 (en) | Cooling device, motor and wind turbine generator set | |
| CN114629297B (en) | Liquid cooling motor | |
| CN110277875A (en) | A kind of air-cooled water cooling integrated motor | |
| CN212033942U (en) | Motor and wind generating set | |
| CN208062914U (en) | Sleeve rotor structure | |
| CN102005860A (en) | Heat abstractor for high-power vertical-axis wind generating set | |
| CN115733325A (en) | Axial flux motor with built-in rotor of centrifugal fan and oil-cooled stator | |
| CN110535291A (en) | A kind of totally-enclosed machine with heat sinking function | |
| CN208539671U (en) | A kind of self-cooling motor rotor | |
| CN110768414A (en) | Cooling structure of permanent magnet motor | |
| CN107528423B (en) | Closed permanent magnet generator for small wind power generation | |
| CN107086713B (en) | High-efficient radiating forced air cooling stator and rotor motor | |
| CN206498265U (en) | A kind of magneto | |
| WO2020220834A1 (en) | Cooling system, motor, and wind turbine generating set | |
| CN108347135A (en) | Motor cooling | |
| CN213585315U (en) | Light high-speed large-capacity air-water cooling synchronous generator | |
| CN206712589U (en) | A kind of air-cooled rotor motor of high efficiency and heat radiation | |
| CN212033943U (en) | Self-circulation heat dissipation device for motor of submersible electric pump | |
| CN210380472U (en) | Water-cooling machine shell with internal circulation wind path | |
| CN211183621U (en) | Noise-reduction heat dissipation structure of motor shell | |
| CN114928198A (en) | Motor with bidirectional output shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |