CN214674689U - High-speed motor cooling system - Google Patents
High-speed motor cooling system Download PDFInfo
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- CN214674689U CN214674689U CN202120648080.7U CN202120648080U CN214674689U CN 214674689 U CN214674689 U CN 214674689U CN 202120648080 U CN202120648080 U CN 202120648080U CN 214674689 U CN214674689 U CN 214674689U
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Abstract
A high speed electric machine cooling system comprising: the water cooling structure comprises a cooling water channel arranged in the shell, and the outer surface of the shell is provided with a water inlet and a water outlet which are communicated with the cooling water channel; the air cooling structure comprises an air inlet arranged on one side of the shell and an air outlet arranged on the other side of the shell, and the air inlet and the air outlet are respectively communicated with the inner cavity of the motor; the spindle cooling structure comprises a magnet arranged in the spindle, and two ends of the magnet are respectively provided with a magnetic conductive sheet. The water cooling structure cools the shell and then cools the interior of the motor from outside to inside; the air cooling structure can accelerate the heat transfer in the motor, the internal heat can be discharged as soon as possible, and the condition of forced shutdown due to overhigh temperature caused by the accumulation of the internal heat is avoided; the magnetic conducting sheet can avoid magnetic leakage and power loss caused by outward diffusion of magnetic fields on two sides of the magnet, and solves the problems of eddy current heating and spindle temperature rise caused by the magnetic leakage when external parts of the spindle cut the magnetic field.
Description
The technical field is as follows:
the utility model relates to a high-speed motor cooling system.
Background art:
at present, the development of new energy fuel cell automobiles is considered as an important link of traffic energy power conversion, in order to ensure the normal work of a fuel cell engine, the engine generally needs auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem and a circulating water cooling management subsystem, and a large number of researches show that the high-pressure and large-flow air supply has an obvious effect of improving the power output of the existing fuel cell engine. Therefore, before air enters the engine, the air intake is pressurized, and a centrifugal air compressor is an energy conversion device for achieving the aim, and is one of important parts of an air supply system of a fuel cell engine. The high-speed motor is as centrifugal air compressor's core component, and its performance directly influences centrifugal air compressor's wholeness ability, and present high-speed motor usually indicates the motor that the rotational speed exceeds 10000r/min, because its rotational speed is very high, the during operation is inside can produce a large amount of heats, because small, heat transfer is slow, and inside heat is difficult to discharge, causes the heat to pile up, often appears because of the inside high temperature of motor leads to the condition of being forced to shut down, influences actual work efficiency.
In summary, the cooling problem of high-speed motors has become an urgent technical problem in the industry.
The utility model has the following contents:
the utility model discloses a remedy prior art not enough, provide a high-speed motor cooling system, solved high-speed motor heat transfer in the past slow, the difficult exhaust problem of inside heat, solved high-speed motor in the past and piled up the problem that leads to the high temperature to be forced to shut down because of inside heat.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a high speed electric machine cooling system comprising:
the water cooling structure comprises a cooling water channel arranged in the shell, and the outer surface of the shell is provided with a water inlet and a water outlet which are communicated with the cooling water channel;
the air cooling structure comprises an air inlet arranged on one side of the shell and an air outlet arranged on the other side of the shell, and the air inlet and the air outlet are respectively communicated with the inner cavity of the motor;
the spindle cooling structure comprises a magnet arranged in the spindle, and two ends of the magnet are respectively provided with a magnetic conductive sheet.
The magnetic conductive sheet is provided with a through hole, and the through hole is arranged at the central position of the magnetic conductive sheet.
The magnetic conductive sheet is a magnetic conductive soft iron sheet.
The main shaft is made of high-temperature-resistant non-magnetic materials.
The cooling water channel comprises an annular water channel, a spiral water channel or a straight water channel.
The main shaft comprises a left shaft body and a right shaft body which are connected, and the left shaft body and the right shaft body are connected in an interference press-fitting and welding mode.
Balance cavities are respectively arranged in the main shafts on the two sides of the magnet, and the two balance cavities are different in size.
The utility model adopts the above technical scheme, have following advantage:
the high-speed motor is internally provided with three cooling structures, namely a water cooling structure, an air cooling structure and a main shaft cooling structure, wherein the water cooling structure firstly cools the shell and then cools the interior of the motor from outside to inside; the air cooling structure can accelerate the heat transfer in the motor, the internal heat can be discharged as soon as possible, and the condition of forced shutdown due to overhigh temperature caused by the accumulation of the internal heat is avoided; the spindle cooling structure is characterized in that the magnetic conductive sheets are arranged on two sides of the magnet, so that magnetic leakage and power loss caused by outward diffusion of magnetic fields on two sides of the magnet can be avoided, and the problems of eddy current heating and spindle temperature rise caused by the fact that a magnetic field cut by external parts of the spindle is generated due to the magnetic leakage are solved; the left shaft body and the right shaft body are respectively internally provided with a balance cavity, the two balance cavities have different volumes, the two balance cavities play a role in balancing the mass center of the main shaft, and the weight of the main shaft can be reduced.
Description of the drawings:
fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
In the figure, the stator comprises a shell 1, a shell 2, a cooling water channel 3, a water inlet 4, a water outlet 5, an air inlet 6, an air outlet 7, a main shaft 8, a magnet 9, a magnetic conductive sheet 10, a through hole 11, a balance cavity 12 and a stator.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the embodiment shown in fig. 1-2, a high speed motor cooling system comprises:
the water cooling structure comprises a cooling water channel 2 arranged in the shell 1, and a water inlet 3 and a water outlet 4 communicated with the cooling water channel are arranged on the outer surface of the shell 1; cold water is injected into the cooling water channel 2 through the water inlet 3, the shell 1 is cooled firstly, then the inside of the high-speed motor is cooled from outside to inside, and the cold water is discharged from the water outlet 4 after circulating in the cooling water channel 2.
The air cooling structure comprises an air inlet 5 arranged on one side of the shell 1 and an air outlet 6 arranged on the other side of the shell 1, and the air inlet 5 and the air outlet 6 are respectively communicated with the inner cavity of the motor; the cooling air enters the high-speed motor through the air inlet 5, the spindle 7 and the stator 12 inside the high-speed motor can be cooled, the air is discharged from the air outlet 6 after the circulation of the inner cavity of the motor, the heat transfer inside the motor can be accelerated, the internal heat can be discharged as soon as possible, and the condition that the motor is stopped due to overhigh temperature caused by the accumulation of the internal heat is avoided.
Main shaft cooling structure, main shaft cooling structure is including establishing magnet 8 in main shaft 7, 8 both ends of magnet respectively are provided with a magnetic conductive plate 9, and magnetic leakage and the power loss that the magnetic field outdiffusion of 8 both sides of magnet caused can be avoided to magnetic conductive plate 9, have solved the 7 external parts cutting magnetic field of main shaft that lead to because of the magnetic leakage and have formed the vortex and generate heat, 7 temperature rising problems of main shaft.
The magnetic conductive sheet 9 is provided with a through hole 10, the through hole 10 is arranged at the center of the magnetic conductive sheet 9, and the through hole 10 is arranged to facilitate assembly and also to dissipate heat and ventilate.
The magnetic conductive sheet 9 is a magnetic conductive soft iron sheet and can protect the internal magnet 8.
The spindle 7 is made of a high-temperature-resistant non-magnetic material, adopts GH4145 alloy, has good corrosion resistance and oxidation resistance, has high strength below 800 ℃, has good relaxation resistance below 540 ℃, and also has good forming performance and welding performance.
The cooling water channel 2 comprises an annular water channel, a spiral water channel or a straight water channel.
The main shaft 7 comprises a left shaft body and a right shaft body which are connected, the main shaft 7 is disassembled into two parts so as to conveniently place the magnet and the magnetic conductive sheet, in addition, the left shaft body and the right shaft body can also be a complete shaft body, the magnet and the magnetic conductive sheet can be placed at first, and then the main shaft is packaged in the main shaft by a mold. Left side axis body, right axis body interference pressure equipment welding link to each other, and this technology makes left axis body, right axis body firm in connection and do not have the space, and other conventional technical means that link together left axis body, right axis body in the field are all in the utility model discloses within the scope of protection.
The main shaft 7 on two sides of the magnet 8 is internally provided with a balance cavity 11 respectively, and the two balance cavities 11 have different volumes. The two balance cavities 11 are used for balancing the mass center of the main shaft 7, so that the mass center of the main shaft 7 is approximately superposed with the center of the magnet 8, the rotation of the rotor is stable, the vibration is small, and the noise is low.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (7)
1. A high-speed motor cooling system characterized in that: the method comprises the following steps:
the water cooling structure comprises a cooling water channel arranged in the shell, and the outer surface of the shell is provided with a water inlet and a water outlet which are communicated with the cooling water channel;
the air cooling structure comprises an air inlet arranged on one side of the shell and an air outlet arranged on the other side of the shell, and the air inlet and the air outlet are respectively communicated with the inner cavity of the motor;
the spindle cooling structure comprises a magnet arranged in the spindle, and two ends of the magnet are respectively provided with a magnetic conductive sheet.
2. A high-speed electric machine cooling system according to claim 1, characterized in that: the magnetic conductive sheet is provided with a through hole, and the through hole is arranged at the central position of the magnetic conductive sheet.
3. A high-speed electric machine cooling system according to claim 1, characterized in that: the magnetic conductive sheet is a magnetic conductive soft iron sheet.
4. A high-speed electric machine cooling system according to claim 1, characterized in that: the main shaft is made of high-temperature-resistant non-magnetic materials.
5. A high-speed electric machine cooling system according to claim 1, characterized in that: the cooling water channel comprises an annular water channel, a spiral water channel or a straight water channel.
6. A high-speed electric machine cooling system according to claim 1, characterized in that: the main shaft comprises a left shaft body and a right shaft body which are connected, and the left shaft body and the right shaft body are connected in an interference press-fitting and welding mode.
7. A high-speed electric machine cooling system according to claim 1, characterized in that: balance cavities are respectively arranged in the main shafts on the two sides of the magnet, and the two balance cavities are different in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648080.7U CN214674689U (en) | 2021-03-30 | 2021-03-30 | High-speed motor cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648080.7U CN214674689U (en) | 2021-03-30 | 2021-03-30 | High-speed motor cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214674689U true CN214674689U (en) | 2021-11-09 |
Family
ID=78457461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120648080.7U Active CN214674689U (en) | 2021-03-30 | 2021-03-30 | High-speed motor cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214674689U (en) |
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2021
- 2021-03-30 CN CN202120648080.7U patent/CN214674689U/en active Active
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