CN211429124U - High-speed motor - Google Patents
High-speed motor Download PDFInfo
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- CN211429124U CN211429124U CN201922499890.6U CN201922499890U CN211429124U CN 211429124 U CN211429124 U CN 211429124U CN 201922499890 U CN201922499890 U CN 201922499890U CN 211429124 U CN211429124 U CN 211429124U
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Abstract
The embodiment of the utility model provides a high-speed motor, include: the shell assembly is provided with an accommodating cavity, and an air inlet and an air outlet which are communicated with the accommodating cavity; the stator is fixedly connected with the shell assembly and is arranged in the accommodating cavity; the rotor is rotatably arranged on the shell assembly, and the stator is positioned on the periphery of the rotor; the air cooling assembly is arranged at an air inlet of the shell assembly and is in transmission connection with the rotor; the air cooling assembly is used for guiding cooling air flow into the accommodating cavity through the air inlet. In the high-speed motor provided by the embodiment of the utility model, the rotor can directly drive the air cooling assembly to work in the rotating process, so that cooling airflow can be generated; inside cooling air current accessible air inlet flowed into high-speed motor, cooled down rotor, stator and other parts to can solve the overheated problem of high-speed motor, simultaneously, this kind of structural design is also comparatively compact, can not occupy great space, thereby does benefit to high-speed motor's miniaturization, lightweight design.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a high-speed motor.
Background
High-speed motors, which are generally motors with a rotational speed of more than 10000r/min, are smaller than conventional motors, and can be directly connected to a high-speed load, so that conventional speed increasing/reducing devices can be omitted, and the high-speed motors have advantages of low noise, high transmission efficiency, rapid dynamic response, and the like, and are therefore increasingly favored by the society.
The high-speed motor is mainly characterized by high rotor speed, high winding current in the stator and high magnetic flux frequency in the iron core, high power density and the like, so the heating problem of the high-speed motor is serious in the running process.
In the prior art, in order to prevent the high-speed motor from being overheated, an air compressor is generally arranged to dissipate heat of the high-speed motor through high-speed airflow; however, the air compressor has a complex structure and a large space occupation, which is not favorable for the miniaturization and low-cost design of the high-speed motor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure, high-speed motor that heat dispersion is good.
A high speed electric machine comprising:
the shell assembly is provided with an accommodating cavity, and an air inlet and an air outlet which are communicated with the accommodating cavity;
the stator is fixedly connected with the shell assembly and is arranged in the accommodating cavity;
a rotor rotatably mounted to the housing assembly, the stator being located at an outer periphery of the rotor;
the air cooling assembly is arranged at an air inlet of the shell assembly and is in transmission connection with the rotor;
the air cooling assembly is used for guiding cooling air flow into the accommodating cavity through the air inlet.
As an example, the housing assembly includes a cylindrical body, and first and second end caps at both ends of the body;
the air inlet is arranged on the first end cover, and the air outlet is arranged on the main body.
As an example, the rotor includes a central shaft and a magnetic core fixed to an outer periphery of the central shaft;
one end of the central shaft is rotatably mounted to the first end cap, and the other end of the central shaft is rotatably mounted to the second end cap.
As an example, the air inlet is disposed proximate to the central axis.
As an example, the air cooling assembly includes a shroud, an impeller, and a connector;
the impeller is connected with one end of the central shaft through the connector;
the cover body covers the periphery of the impeller and is fixedly connected with the first end cover.
As an example, the air-cooled assembly further comprises a diffuser;
the diffuser is positioned on the inner side of the cover body, and an airflow channel is arranged between the diffuser and the cover body;
one end of the airflow channel is communicated with the air inlet, and the other end of the airflow channel is communicated with the impeller.
As an example, the high-speed motor further comprises a fuel injection assembly;
the oil injection assembly is used for supplementing oil into the high-speed motor through the air inlet.
As an example, the high speed electric machine further comprises a filter assembly;
the filtering component is communicated with the air inlet of the air cooling component and is used for filtering the airflow flowing into the air cooling component.
As an example, the high speed electric machine further comprises a water cooling assembly;
the shell assembly is provided with a water flow channel, and a liquid inlet and a liquid outlet which are communicated with the water flow channel.
As an example, the housing assembly further comprises a baffle;
the guide plate is arranged on the inner side of the main body, and the water flow channel is positioned between the guide plate and the main body.
The embodiment of the utility model provides a beneficial effect lies in:
in the high-speed motor provided by the embodiment of the utility model, the rotor can directly drive the air cooling assembly to work in the rotating process, so that cooling airflow can be generated; inside cooling air current accessible air inlet flowed into high-speed motor, cooled down rotor, stator and other parts to can solve the overheated problem of high-speed motor, simultaneously, this kind of structural design is also comparatively compact, can not occupy great space, thereby does benefit to high-speed motor's miniaturization, lightweight design.
Drawings
Fig. 1 is a schematic structural diagram of a high-speed motor according to an embodiment of the present invention;
fig. 2 is a schematic partial sectional view of an air cooling module according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of an air-cooled assembly according to an embodiment of the present invention.
Reference numerals:
1-a housing assembly; 11-a body; 111-vent; 112-a liquid inlet; 113-a liquid outlet; 12-a first end cap; 121-an air inlet; 13-a second end cap; 14-a baffle; 141-a water flow channel; 2-a stator; 3-a rotor; 31-a central axis; 32-a magnetic core; 4-air cooling assembly; 41-cover body; 42-an impeller; 43-a connector; 44-a diffuser; 5-a bearing; 6-oil injection assembly; 7-filtration module.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a high-speed motor, which includes a housing assembly 1, a stator 2, a rotor 3, and an air cooling assembly 4; the shell assembly 1 is provided with an accommodating cavity, and an air inlet 121 and an air outlet 111 which are communicated with the accommodating cavity; the stator 2 is fixedly connected with the shell assembly 1 and is arranged in the accommodating cavity; the rotor 3 is rotatably arranged on the shell assembly 1, and the stator 2 is positioned on the periphery of the rotor 3; the air cooling assembly 4 is arranged at the air inlet 121 of the shell assembly 1 and is in transmission connection with the rotor 3; the air cooling assembly 4 is used for introducing cooling air flow into the accommodating cavity through the air inlet 121.
In the high-speed motor of the embodiment of the utility model, the rotor 3 can directly drive the air cooling component 4 to work in the rotating process, thereby generating cooling airflow; inside cooling air current accessible air inlet 121 flowed into high-speed motor, cooled down rotor 3, stator 2 and other parts to can solve the overheated problem of high-speed motor, simultaneously, this kind of structural design is also comparatively compact, can not occupy great space, thereby does benefit to high-speed motor's miniaturization, lightweight design.
Wherein, the rotor 3 has a magnetic core 32 therein, and the stator 2 has a magnetic induction coil (not shown in the figure); when the magnetic induction coil in the stator 2 is supplied with current, the rotor 3 can be driven to rotate by electromagnetic induction.
Specifically, in the embodiment provided by the present invention, the housing assembly 1 includes a cylindrical main body 11, and a first end cap 12 and a second end cap 13 located at two ends of the main body 11; the air inlet 121 is provided in the first cover 12, and the air outlet 111 is provided in the body 11.
Through the structural arrangement, good heat dissipation can be carried out on the high-speed motor. Specifically, because a certain gap is formed between the rotor 3 and the stator 2, when the air inlet 121 is disposed on the first end cover 12, the air flow enters the accommodating cavity through the air inlet 121, and then flows directly and axially to the stator 2 and the rotor 3, and flows to the second end cover 13 through the gap between the stator 2 and the rotor 3, so that the whole high-speed motor can be completely cooled.
In addition, to facilitate the discharge of the cooling air flow, in the present embodiment, the air outlet 111 is disposed on the main body 11 and near the second end cap 13. Of course, in other embodiments, the vent 111 may be disposed on the second end cap 13. The cross-sectional profile of the main body 11 may be a polygonal structure such as a circle or a square, which is not specifically limited by the present invention.
Specifically, in the embodiment provided by the present invention, the rotor 3 includes a central shaft 31 and a magnetic core 32 fixed to the periphery of the central shaft 31; one end of the center shaft 31 is rotatably mounted to the first end cap 12, and the other end of the center shaft 31 is rotatably mounted to the second end cap 13.
In order to reduce the friction resistance of the rotor 3 during rotation, the central shaft 31 is rotatably mounted on the first end cap 12 and the second end cap 13 through the bearing 5 in the embodiment provided by the present invention.
Wherein, air-cooled subassembly 4 not only can carry out effectual heat dissipation to rotor 3 and stator 2, can also carry out effectual heat dissipation to bearing 5.
Specifically, because the bearing 5 has a gap, the air flowing through the air inlet 121 into the accommodating cavity can directly flow axially to the stator 2 and the rotor 3, and flow to the second end cap 13 through the gap between the stator 2 and the rotor 3; a part of the air flow can be discharged through the exhaust port 111, and another part of the air flow can be discharged through the gap in the bearing 5, thereby dissipating heat from the bearing 5.
In order to reduce the transmission loss between the rotor 3 and the air cooling assembly 4, in the embodiment of the present invention, the rotor 3 directly drives the air cooling assembly 4 to operate.
Specifically, as shown in fig. 2 and 3, the air cooling unit 4 includes a cover 41, an impeller 42, and a connector 43; the impeller 42 is connected to one end of the central shaft 31 through a connector 43; the cover 41 covers the periphery of the impeller 42 and is fixedly connected to the first end cap 12.
The cover 41 has a cylindrical structure, two ends of the cover are flared, one end of the cover is fixedly connected to the first end cap 12, and the air inlet 121 is enclosed in the cover 41.
The impeller 42 is connected to one end of the central shaft 31 by a connector 43; in practical implementation, the connector 43 may be connected with the central shaft 31 and the impeller 42 by a fastener such as a bolt, or may be connected by welding.
Wherein, the number of the air inlets 121 and the air outlets 111 can be multiple; for example, in the embodiment provided by the present invention, the air inlets 121 have a plurality and are arranged along a central annular array of the central shaft 31; wherein the plurality of air inlets 121 are all enclosed within the housing 41.
Further, in order to improve the cooling effect of the air cooling assembly 4, in the embodiment provided by the present invention, the air cooling assembly 4 further includes a diffuser 44; the diffuser 44 is positioned at the inner side of the cover body 41, and an airflow channel is arranged between the diffuser 44 and the cover body 41; one end of the air flow passage communicates with the air inlet 121, and the other end communicates with the impeller 42.
Specifically, referring to fig. 1, the diffuser 44 is fixedly mounted on the first end cover 12, and is used for converting a part of dynamic pressure generated by the rotation of the impeller 42 into static pressure energy, and simultaneously twisting the flow direction of the air flow from a radial direction to an axial direction, so as to facilitate guiding the air flow into the accommodating cavity from the air inlet 121, and further reduce the flow loss of the air flow along the way.
Furthermore, in order to effectively lubricate and supplement each running part in the high-speed motor, in the embodiment provided by the utility model, the high-speed motor also comprises an oil injection assembly 6; the oil injection assembly 6 is used for supplementing oil into the high-speed motor through the air inlet 121.
Specifically, because the air cooling assembly 4 can introduce cooling airflow into the high-speed motor during operation, the lubricating oil sprayed by the oil spraying assembly 6 can enter the high-speed motor along with the cooling airflow, so that lubrication can be provided for moving parts in the high-speed motor. For example, when the high-speed airflow doped with the lubricating oil flows through the bearing 5, the oil can be supplemented to the bearing 5, so that the lubricating performance of the bearing 5 is improved, and the operation reliability of the bearing is ensured.
Furthermore, in order to prevent impurities such as dust from being entrained in the airflow and affecting the normal operation of the high-speed motor, in the embodiment provided by the utility model, the high-speed motor further comprises a filtering component 7; the filtering component 7 is communicated with the air inlet of the air cooling component 4 and is used for filtering the air flow flowing into the air cooling component 4.
Before the outside air flow is sucked into the air cooling assembly 4, the filter assembly 7 can purify the air flow, so that impurities such as dust can be prevented from entering the inside of the high-speed motor.
In addition, in order to further dispel the heat to high-speed motor the utility model provides an in the embodiment, high-speed motor still includes water cooling module.
Specifically, the housing assembly 1 has a water flow passage 141, and an inlet 112 and an outlet 113 which are communicated with the water flow passage 141, wherein the water flow passage 141 can be filled with cooling media such as water and oil.
For example, in implementations provided herein, the housing assembly 1 includes a baffle 14; the baffle 14 is installed inside the main body 11, and the water flow path 141 is located between the baffle 14 and the main body 11.
In order to increase the heat exchange area between the cooling medium and the high-speed motor, in the embodiment provided by the present invention, the plate surface of the flow guide plate 14 has a spiral structure; that is, the water flow channel 141 is spiral; when the cooling medium flows in the water flow passage 141, the heat exchange time and the heat exchange area between the cooling medium and the guide plate 14 and the main body 11 can be increased, thereby improving the heat dissipation efficiency of the high-speed motor.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A high speed electric machine, comprising:
the shell assembly is provided with an accommodating cavity, and an air inlet and an air outlet which are communicated with the accommodating cavity;
the stator is fixedly connected with the shell assembly and is arranged in the accommodating cavity;
a rotor rotatably mounted to the housing assembly, the stator being located at an outer periphery of the rotor;
the air cooling assembly is arranged at an air inlet of the shell assembly and is in transmission connection with the rotor;
the air cooling assembly is used for guiding cooling air flow into the accommodating cavity through the air inlet.
2. The high-speed electric machine of claim 1, wherein the housing assembly comprises a cylindrical body, and first and second end caps at either end of the body;
the air inlet is arranged on the first end cover, and the air outlet is arranged on the main body.
3. The high-speed electric machine according to claim 2, wherein the rotor includes a center shaft and a magnetic core fixed to an outer periphery of the center shaft;
one end of the central shaft is rotatably mounted to the first end cap, and the other end of the central shaft is rotatably mounted to the second end cap.
4. A high speed electric machine according to claim 3, wherein the air inlet is provided close to the central shaft.
5. The high-speed electric machine of claim 3, wherein the air-cooled assembly comprises a shroud, an impeller, and a connector;
the impeller is connected with one end of the central shaft through the connector;
the cover body covers the periphery of the impeller and is fixedly connected with the first end cover.
6. The high-speed electric machine of claim 5, wherein the air-cooled assembly further comprises a diffuser;
the diffuser is positioned on the inner side of the cover body, and an airflow channel is arranged between the diffuser and the cover body;
one end of the airflow channel is communicated with the air inlet, and the other end of the airflow channel is communicated with the impeller.
7. The high-speed electric machine of claim 1, further comprising an oil spray assembly;
the oil injection assembly is used for supplementing oil into the high-speed motor through the air inlet.
8. The high-speed electric machine of claim 7, further comprising a filter assembly;
the filtering component is communicated with the air inlet of the air cooling component and is used for filtering the airflow flowing into the air cooling component.
9. The high-speed electric machine according to claim 2, further comprising a water cooling assembly;
the shell assembly is provided with a water flow channel, and a liquid inlet and a liquid outlet which are communicated with the water flow channel.
10. The high speed electric machine of claim 9, wherein the housing assembly further comprises a baffle;
the guide plate is arranged on the inner side of the main body, and the water flow channel is positioned between the guide plate and the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499890.6U CN211429124U (en) | 2019-12-31 | 2019-12-31 | High-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922499890.6U CN211429124U (en) | 2019-12-31 | 2019-12-31 | High-speed motor |
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| Publication Number | Publication Date |
|---|---|
| CN211429124U true CN211429124U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922499890.6U Active CN211429124U (en) | 2019-12-31 | 2019-12-31 | High-speed motor |
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| CN (1) | CN211429124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030377A (en) * | 2019-12-31 | 2020-04-17 | 新奥能源动力科技（上海）有限公司 | a high-speed motor |
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2019
- 2019-12-31 CN CN201922499890.6U patent/CN211429124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030377A (en) * | 2019-12-31 | 2020-04-17 | 新奥能源动力科技（上海）有限公司 | a high-speed motor |
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