CN107645222B - Water internal cooling permanent magnet motor - Google Patents
Water internal cooling permanent magnet motor Download PDFInfo
- Publication number
- CN107645222B CN107645222B CN201711126041.5A CN201711126041A CN107645222B CN 107645222 B CN107645222 B CN 107645222B CN 201711126041 A CN201711126041 A CN 201711126041A CN 107645222 B CN107645222 B CN 107645222B
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- cup
- water jacket
- shaped water
- rear end
- rotor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000001816 cooling Methods 0.000 title claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to the field of permanent magnet motors, in particular to an internal water-cooled permanent magnet motor which comprises a motor shell, a rear end cover, a front bearing cover, a stator iron core, a rotor and a cup-shaped water jacket, wherein the cup-shaped water jacket is connected to the motor shell, the rotor is positioned in the cup-shaped water jacket, the rotor and the stator iron core are isolated by the thin wall of the cup-shaped water jacket, the rear end cover and the front bearing cover are respectively connected to two sides of the motor shell, a water outlet is formed through the rear end cover and the cup-shaped water jacket, a water inlet is formed through the front bearing cover, and the inner cavity of the cup-shaped water jacket is communicated with an external water flow pipeline through the water outlet and the water inlet. The invention adopts the permanent magnet motor water internal cooling rotor structure, the cup-shaped water jacket isolates the stator from the rotor, the running water is utilized to enter the cup-shaped water jacket, the heat of the rotor in the cup-shaped water jacket is directly taken away, the structure is simple, the loss is reduced, the efficiency is improved, the motor volume is reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the field of permanent magnet motors, in particular to an internal water-cooled permanent magnet motor which improves motor efficiency, shortens an iron core, reduces cost and improves power density through water cooling.
Background
The permanent magnet motor is widely applied in the aspects of flexibility, variability, high efficiency, energy conservation and the like. The asynchronous motor is replaced in various fields, and the transmission efficiency is improved. However, with the expansion of the application range, the performance of the permanent magnet motor is required to be higher and higher, the efficiency of the permanent magnet motor is reduced due to the fact that the rotor permanent magnet heats, the overall performance of the motor is affected, and the cost of the permanent magnet is relatively high, so that effective measures are required to be adopted to improve the performance of the permanent magnet motor in the design process, the cost is reduced, and the power density is improved.
Disclosure of Invention
Object of the Invention
In order to solve the problems, the invention provides the water-cooled permanent magnet motor, which achieves the purposes of improving the motor efficiency, shortening the iron core, reducing the cost and improving the power density through water cooling of a rotor.
Technical proposal
An internal water cooling permanent magnet motor, which is characterized in that: the motor comprises a motor shell, a rear end cover, a front bearing cover, a stator iron core, a rotor and a cup-shaped water jacket, wherein the cup-shaped water jacket is connected to the shell, the rotor is positioned inside the cup-shaped water jacket, the rotor is isolated from the stator iron core by the thin wall of the cup-shaped water jacket, the rear end cover and the front bearing cover are respectively connected to two sides of the motor shell, a water outlet is formed through the rear end cover and the cup-shaped water jacket, a water inlet is formed through the front bearing cover, and the inner cavity of the cup-shaped water jacket is communicated with an external water flow pipeline through the water outlet and the water inlet.
The cup-shaped water jacket is similar to a cup shape, the cup opening of the cup-shaped water jacket is turned outwards to form an everting surface, and the front bearing cover is connected to the cup opening of the cup-shaped water jacket; the rear end cover is fixed with the motor shell and the cup bottom of the cup-shaped water jacket.
The rotor comprises a rotor core, a permanent magnet and a rotating shaft, one end of the rotating shaft penetrates through the cup-shaped water jacket cup bottom and the rear end cover, the other end of the rotating shaft penetrates through the front bearing cover, a bearing is arranged at the matching position of the rotating shaft and the rear end cover, a sealing rubber ring is arranged at the matching gap of the rotating shaft and the rear end cover and the cup-shaped water jacket cup bottom, a bearing is also arranged at the matching position of the rotating shaft and the front bearing cover, and a sealing rubber ring is also arranged at the matching gap of the rotating shaft and the front bearing cover.
A circle of sealing ring is arranged between the cup bottom of the cup-shaped water jacket and the rear end cover.
The sealing rubber ring is a sealing rubber ring with a circular section.
Advantages and effects
The invention adopts the permanent magnet motor water internal cooling rotor structure, the cup-shaped water jacket isolates the stator from the rotor, and the running water enters the cup-shaped water jacket to directly take away the heat of the rotor in the cup-shaped water jacket, so that the structure is simple, the loss is reduced, the efficiency is improved, the motor volume is reduced, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of an internal water cooled permanent magnet motor;
FIG. 2 is a schematic view of a cup-type water jacket structure.
Reference numerals illustrate: 1. rotor core, 2, permanent magnet, 3, pivot, 4, stator core, 5, cup water jacket, 6, motor casing, 7, preceding bearing cap, 8, water inlet, 9, rear end cover, 10, delivery port, 11, sealing rubber ring, 12, bearing, 13, sealing washer, 14, turn-ups.
Detailed Description
The invention is further described with reference to the accompanying drawings:
as shown in fig. 1 and 2, the water-cooled permanent magnet motor comprises a motor shell 6, a rear end cover 9, a front bearing cover 7, a stator iron core 4, a rotor and a cup-shaped water jacket 5, wherein the cup-shaped water jacket 5 is connected to the shell, the rotor is positioned in the cup-shaped water jacket 5, the rotor and the stator iron core 4 are isolated by the thin wall of the cup-shaped water jacket 5, the cup-shaped water jacket 5 is similar to a cup shape, the cup mouth of the cup-shaped water jacket 5 is turned outwards to form an outwards turned surface 14, and the front bearing cover 7 is connected to the cup mouth of the cup-shaped water jacket 5; the rear end cover 9 is fixed with the motor shell 6 and the cup bottom of the cup-shaped water jacket 5. The rotor comprises rotor core 1, permanent magnet 2 and pivot 3, and the one end of pivot 3 passes cup type water jacket 5 bottom of cup and rear end cover 9, and the other end passes preceding bearing cap 7, and pivot 3 and rear end cover 9 cooperation department is equipped with bearing 12, and pivot 3 and rear end cover 9 and cup type water jacket 5 bottom of cup's cooperation clearance department is equipped with sealed rubber ring 11, and pivot 3 and preceding bearing cap 7 cooperation department also are equipped with bearing 12, and pivot 3 and preceding bearing cap 7 cooperation clearance department also are equipped with sealed rubber ring 11. A circle of sealing ring 13 is arranged between the cup bottom of the cup-shaped water jacket 5 and the rear end cover 9. The inner cavity of the cup-shaped water jacket 5 is communicated with an external water flow pipeline through the rear end cover 9 and the cup-shaped water jacket 5, and the front bearing cover 7 is provided with the water inlet 8, and the water outlet 10 and the water inlet 8 are communicated with the external water flow pipeline. Water is introduced from the water inlet 8 and discharged from the water outlet 10, taking heat away from the rotor.
Preferably, the sealing rubber ring 11 is a sealing rubber ring with a circular cross section, and is deformed uniformly after extrusion, so that the sealing is easier.
Claims (3)
1. An internal water cooling permanent magnet motor, which is characterized in that: the motor comprises a motor shell (6), a rear end cover (9), a front bearing cover (7), a stator iron core (4), a rotor and a cup-shaped water jacket (5), wherein the cup-shaped water jacket (5) is connected to the shell, the rotor is positioned in the cup-shaped water jacket (5), the rotor is isolated from the stator iron core (4) by the thin wall of the cup-shaped water jacket (5), the rear end cover (9) and the front bearing cover (7) are respectively connected to two sides of the motor shell (6), a water outlet (10) is formed through the rear end cover (9) and the cup-shaped water jacket (5), a water inlet (8) is formed through the front bearing cover (7), and the inner cavity of the cup-shaped water jacket (5) is communicated with an external water flow pipeline through the water outlet (10) and the water inlet (8);
the cup-shaped water jacket (5) is similar to a cup shape, the cup opening of the cup-shaped water jacket is turned outwards to form an outwards turned surface (14), and the front bearing cover (7) is connected to the cup opening of the cup-shaped water jacket (5); the rear end cover (9) is fixed with the motor shell (6) and the cup bottom of the cup-shaped water jacket (5);
the rotor comprises rotor core (1), permanent magnet (2) and pivot (3), and cup type water jacket (5) bottom of cup and rear end cover (9) are passed to the one end of pivot (3), and front bearing cover (7) are passed to the other end, and pivot (3) are equipped with bearing (12) with rear end cover (9) cooperation department, and pivot (3) are equipped with sealed rubber ring (11) with the cooperation clearance department of rear end cover (9) and cup type water jacket (5) bottom of cup, and pivot (3) are equipped with bearing (12) with front bearing cover (7) cooperation department also, and pivot (3) are equipped with sealed rubber ring (11) with front bearing cover (7) cooperation clearance department.
2. An internal water cooled permanent magnet machine according to claim 1, wherein: a circle of sealing ring (13) is arranged between the cup bottom of the cup-shaped water jacket (5) and the rear end cover (9).
3. An internal water cooled permanent magnet machine according to claim 1, wherein: the sealing rubber ring (11) is a sealing rubber ring with a circular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126041.5A CN107645222B (en) | 2017-11-15 | 2017-11-15 | Water internal cooling permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711126041.5A CN107645222B (en) | 2017-11-15 | 2017-11-15 | Water internal cooling permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107645222A CN107645222A (en) | 2018-01-30 |
| CN107645222B true CN107645222B (en) | 2024-03-01 |
Family
ID=61125307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711126041.5A Active CN107645222B (en) | 2017-11-15 | 2017-11-15 | Water internal cooling permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107645222B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917210B (en) * | 2020-08-24 | 2021-07-27 | 浙江向阳齿轮机电有限公司 | Motor rotor and motor |
Citations (12)
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|---|---|---|---|---|
| JPS5473210A (en) * | 1977-11-25 | 1979-06-12 | Toshiba Corp | Revolving electric machine |
| JP2000316248A (en) * | 1999-04-28 | 2000-11-14 | Ebara Corp | Canned motor rotor and canned motor pump |
| CA2480418A1 (en) * | 2002-05-28 | 2003-12-04 | Emerson Electric Co. | Cooling jacket for electric machines |
| CN1889334A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | External water channel evaporative cooling horizontal motor |
| CN101557143A (en) * | 2008-04-09 | 2009-10-14 | 利勃海尔比伯拉赫有限公司 | Liquid-cooled electric machine and method for cooling such electric machine |
| DE102008061450A1 (en) * | 2008-12-10 | 2010-06-17 | Linde Material Handling Gmbh | Electrical machine i.e. rotary current generator, for use in drive axle of mobile machine i.e. ground conveyor, has stator arranged in cooling agent area that stands in contact with cooling circuit of liquid cooling system |
| JP2011250601A (en) * | 2010-05-27 | 2011-12-08 | Toyota Motor Corp | Electric motor |
| DE102011012454A1 (en) * | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine for use as synchronous generator for wind energy plant, has inner stator connected with carrier, and rotor supported on carrier via double-sided bearing and rotated relative to inner and outer stators |
| CN203967885U (en) * | 2014-07-22 | 2014-11-26 | 常州市翰琪电机有限公司 | A kind of multi-pore channel water-cooled electricity main shaft |
| CN105871124A (en) * | 2016-06-15 | 2016-08-17 | 上虞奥克斯齿轮电机有限公司 | Integrally-water-cooled motor |
| CN206332572U (en) * | 2017-01-04 | 2017-07-14 | 温岭市东菱电机有限公司 | Exchange low speed synchromotor |
| CN207382135U (en) * | 2017-11-15 | 2018-05-18 | 沈阳工业大学 | Water-cooled permanent magnet motor |
-
2017
- 2017-11-15 CN CN201711126041.5A patent/CN107645222B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5473210A (en) * | 1977-11-25 | 1979-06-12 | Toshiba Corp | Revolving electric machine |
| JP2000316248A (en) * | 1999-04-28 | 2000-11-14 | Ebara Corp | Canned motor rotor and canned motor pump |
| CA2480418A1 (en) * | 2002-05-28 | 2003-12-04 | Emerson Electric Co. | Cooling jacket for electric machines |
| CN1889334A (en) * | 2005-06-29 | 2007-01-03 | 中国科学院电工研究所 | External water channel evaporative cooling horizontal motor |
| CN101557143A (en) * | 2008-04-09 | 2009-10-14 | 利勃海尔比伯拉赫有限公司 | Liquid-cooled electric machine and method for cooling such electric machine |
| DE102008061450A1 (en) * | 2008-12-10 | 2010-06-17 | Linde Material Handling Gmbh | Electrical machine i.e. rotary current generator, for use in drive axle of mobile machine i.e. ground conveyor, has stator arranged in cooling agent area that stands in contact with cooling circuit of liquid cooling system |
| JP2011250601A (en) * | 2010-05-27 | 2011-12-08 | Toyota Motor Corp | Electric motor |
| DE102011012454A1 (en) * | 2011-02-25 | 2012-08-30 | Nordex Energy Gmbh | Electric machine for use as synchronous generator for wind energy plant, has inner stator connected with carrier, and rotor supported on carrier via double-sided bearing and rotated relative to inner and outer stators |
| CN203967885U (en) * | 2014-07-22 | 2014-11-26 | 常州市翰琪电机有限公司 | A kind of multi-pore channel water-cooled electricity main shaft |
| CN105871124A (en) * | 2016-06-15 | 2016-08-17 | 上虞奥克斯齿轮电机有限公司 | Integrally-water-cooled motor |
| CN206332572U (en) * | 2017-01-04 | 2017-07-14 | 温岭市东菱电机有限公司 | Exchange low speed synchromotor |
| CN207382135U (en) * | 2017-11-15 | 2018-05-18 | 沈阳工业大学 | Water-cooled permanent magnet motor |
Non-Patent Citations (1)
| Title |
|---|
| 电机散热仿真分析;郭军朝;夏青松;史建鹏;章国光;;汽车科技(第01期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN107645222A (en) | 2018-01-30 |
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