CN112564417A - New energy automobile permanent magnet motor - Google Patents
New energy automobile permanent magnet motor Download PDFInfo
- Publication number
- CN112564417A CN112564417A CN201910918018.2A CN201910918018A CN112564417A CN 112564417 A CN112564417 A CN 112564417A CN 201910918018 A CN201910918018 A CN 201910918018A CN 112564417 A CN112564417 A CN 112564417A
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- China
- Prior art keywords
- air
- air inlet
- transmission end
- permanent magnet
- new energy
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 238000004080 punching Methods 0.000 claims abstract description 19
- 239000000498 cooling water Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a new energy automobile permanent magnet motor which comprises a rotating shaft, a rotor punching assembly arranged on the rotating shaft, a stator assembly arranged on the periphery of the rotor punching assembly, a shell arranged on the periphery of the stator assembly, a transmission end cover arranged at one end of the shell, a non-transmission end cover arranged at the other end of the shell, and an air inlet pipeline. The invention has the advantages of high reliability, strong cooling capacity, contribution to improving the power density and the overall performance of the motor and the like.
Description
Technical Field
The invention relates to a motor, in particular to a permanent magnet motor of a new energy automobile.
Background
Taking a hydrogen energy fuel cell automobile as an example, a permanent magnet motor has become an important development direction of modern novel high-efficiency motors, and along with the continuous improvement of the motor strengthening degree and the continuous development towards the high-efficiency energy-saving direction, especially for the development towards the driving pleasure and the light weight of the automobile, the permanent magnet motor for the automobile is promoted to continuously develop towards the miniaturization, the high efficiency and the high speed direction, so that the working condition of the permanent magnet motor is more severe and the cooling condition is worse. The heat dissipation effect of the permanent magnet motor directly restricts the improvement of the power density, the overall performance and the service life of the motor. The existing permanent magnet motor generally adopts a cooling water channel in a shell and radiating ribs attached to the outer surface of the shell for natural air cooling. The cooling mode can well reduce the temperature of the motor under low load, but can not fully take away the heat generated by the motor under the working conditions of high load or high rotating speed. With the increasing prominence of environmental issues and the higher energy density of hydrogen energy, hydrogen energy fuel cell technology is receiving increasing attention. The permanent magnet motor is an important component in a hydrogen energy fuel cell power unit, and how to improve the heat dissipation effect, so that the power density, the overall performance and the service life of the motor are remarkably improved becomes a technical problem to be solved in the field.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the new energy automobile permanent magnet motor which is high in reliability, strong in cooling capacity and beneficial to improving the power density and the overall performance of the motor.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a new energy automobile permanent-magnet machine, includes the pivot, locates the epaxial rotor punching subassembly of pivot, is located the stator module of rotor punching subassembly periphery, locates the casing of stator module periphery, locates the transmission end cover of casing one end and locates the non-transmission end cover of the casing other end, still includes the air inlet pipeline, along the air inlet direction, be equipped with air cleaner, compressor and intercooler on the air inlet pipeline in proper order, be equipped with the air intake on the non-transmission end cover, be equipped with the air outlet on the transmission end cover, the air inlet pipeline with the air intake links to each other.
As a further improvement of the above technical solution: the air inlet direction of the air inlet and the included angle between the rotating shafts are 45 degrees to 90 degrees.
As a further improvement of the above technical solution: the air inlet is arranged at the lower part of the non-transmission end cover, and the air outlet is arranged at the upper part of the transmission end cover.
As a further improvement of the above technical solution: lightening holes which are axially arranged along the rotating shaft are formed in the rotor punching sheet assembly.
As a further improvement of the above technical solution: and a spiral cooling water channel is arranged in the shell, and a cooling medium is filled in the spiral cooling water channel.
As a further improvement of the above technical solution: and a one-way valve is further arranged on the air inlet pipeline and is positioned between the air inlet and the intercooler.
Compared with the prior art, the invention has the advantages that: the invention discloses a permanent magnet motor of a new energy automobile, which is provided with an air inlet pipeline, wherein an air filter, a gas compressor and an intercooler are sequentially arranged on the air inlet pipeline, an air inlet is formed in a non-transmission end cover and is communicated with the air inlet pipeline, an air outlet is formed in a transmission end cover, when the motor normally operates, external fresh air is filtered by the air filter, is pressurized by the gas compressor, is cooled by the intercooler and then flows into the air inlet in the non-transmission end cover, and the high-pressure cold-state air forcibly cools a non-transmission end winding, a non-transmission end bearing and a rotating shaft with high heat load, so that the working temperature of the motor is effectively reduced; then the cooling air cools the rotor punching sheet assembly and the stator assembly through an air gap between the rotor punching sheet assembly and the stator assembly, and the heat generated by the rotor punching sheet assembly and the stator assembly can be fully taken away; then the forced cooling air flows to the end winding of the transmission end, the rotating shaft and the bearing of the transmission end, so that the temperature of the forced cooling air can be well reduced, and finally the cooling air carrying a large heat load flows into the atmosphere through the air outlet of the end cover of the transmission end, so that the cooling effect is good; the forced cooling air can filter impurities and corrosive media in the air through the air filter, so that the damage of the impurities and the corrosive media to the permanent magnet and the motor insulating layer and the damage to the motor breakdown strength are well avoided, and the reliability is high.
Drawings
Fig. 1 is a schematic structural diagram of a new energy automobile permanent magnet motor.
The reference numerals in the figures denote: 11. a rotating shaft; 111. a drive end bearing; 112. a non-drive end bearing; 12. a rotor punching sheet assembly; 121. lightening holes; 13. a stator assembly; 131. a permanent magnet; 132. a drive end winding; 133. a non-drive end winding; 14. a housing; 141. a spiral cooling water channel; 15. a drive end cap; 16. a non-drive end cap; 17. an air inlet; 18. an air outlet; 2. an air inlet pipeline; 3. an air cleaner; 4. a compressor; 5. an intercooler; 6. a one-way valve.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 shows an embodiment of the present invention, and the new energy vehicle permanent magnet motor of this embodiment includes a rotating shaft 11, a rotor sheet assembly 12 disposed on the rotating shaft 11, a stator assembly 13 disposed on the periphery of the rotor sheet assembly 12, a housing 14 disposed on the periphery of the stator assembly 13, a transmission end cap 15 disposed at one end of the housing 14, and a non-transmission end cap 16 disposed at the other end of the housing 14, and further includes an air intake pipeline 2, along an air intake direction, an air cleaner 3, an air compressor 4, and an intercooler 5 are sequentially disposed on the air intake pipeline 2, an air intake 17 is disposed on the non-transmission end cap 16, an air outlet 18 is disposed on the transmission end cap 15, and the air intake pipeline 2 is connected to the air intake 17.
The permanent magnet motor of the new energy automobile is provided with an air inlet pipeline 2, an air filter 3, an air compressor 4 and an intercooler 5 are sequentially arranged on the air inlet pipeline 2, an air inlet 17 is arranged on a non-transmission end cover 16 and is communicated with the air inlet pipeline 2, an air outlet 18 is arranged on a transmission end cover 15, when the motor normally operates, external fresh air is filtered by the air filter 3, is pressurized by the air compressor 4, is cooled by the intercooler 5 and then flows into the air inlet 17 on the non-transmission end cover 16, and the high-pressure cold-state air forcibly cools a non-transmission end winding 133 with high heat load, a non-transmission end bearing 112 and a rotating shaft 11, so that the working temperature of the motor is effectively reduced; then the cooling air cools the rotor punching sheet assembly 12 and the stator assembly 13 through an air gap between the rotor punching sheet assembly 12 and the stator assembly 13, and can fully take away heat generated by the rotor punching sheet assembly 12 and the stator assembly 13; then the forced cooling air flows to the end winding 132 of the transmission end, the rotating shaft 11 and the bearing 111 of the transmission end, so that the temperature of the forced cooling air can be well reduced, and finally the cooling air carrying a large heat load flows into the atmosphere through the air outlet 18 of the end cover 15 of the transmission end, so that the cooling effect is good; the forced cooling air passes through the air filter 3, so that impurities and corrosive media in the air can be filtered, and the damage of the impurities and the corrosive media to the permanent magnet 131 and the motor insulating layer and the damage to the motor breakdown strength are well avoided.
As the preferred technical scheme, the included angle between the air inlet direction of the air inlet 17 and the rotating shaft 11 is 45-90 degrees, so that the vortex cooling effect can be enhanced after the forced cooling air of the air inlet 17 enters the inner space of the motor, and the cooling effect is further improved.
In the preferred embodiment, the air inlet 17 is disposed at the lower portion of the non-transmission end cover 16, and the air outlet 18 is disposed at the upper portion of the transmission end cover 15. After forced cooling air enters the inner space of the motor, the cooling coverage and the retention time can be increased, and the cooling effect is further improved.
In the present embodiment, as a preferred technical solution, a lightening hole 121 is formed in the rotor punching sheet assembly 12 and is arranged along the axial direction of the rotating shaft 11. The lightening holes 121 reduce the dead weight of the rotor sheet assembly 12 on one hand, and on the other hand, the forced cooling air can conveniently pass through the interior of the rotor sheet assembly 12, so that the cooling effect on the rotor sheet assembly 12, the rotating shaft 11 and the like is further improved.
Further, in the present embodiment, a spiral cooling water channel 141 is provided in the housing 14, and the cooling medium is filled in the spiral cooling water channel 141. Furthermore, the air inlet pipeline 2 is also provided with a one-way valve 6, and the one-way valve 6 is positioned between the air inlet 17 and the intercooler 5. When the motor is in a medium-low load working condition, the cooling requirement of the motor can be met only by depending on the cooling medium of the spiral cooling water channel 141 in the shell 14, and the one-way valve 6 can be reduced or closed to reduce the power consumption of the fuel cell air supply system; at medium and high speed, the one-way valve 6 is opened, external fresh air is filtered by the air filter 3, is pressurized by the air compressor 4, is cooled by the intercooler 5, and then flows into the air inlet 17 on the non-transmission end cover 16, and the high-pressure cold air forcibly cools the non-transmission end winding 133 with high heat load, the non-transmission end bearing 112 and the rotating shaft 11, so that the working temperature of the high-pressure cold air is effectively reduced; then the cooling air cools the rotor punching sheet assembly 12 and the stator assembly 13 through an air gap between the rotor punching sheet assembly 12 and the stator assembly 13, and can fully take away heat generated by the rotor punching sheet assembly 12 and the stator assembly 13; then the forced cooling air flows to the end winding 132 of the transmission end, the rotating shaft 11 and the bearing 111 of the transmission end, the temperature of the forced cooling air can be well reduced, finally the cooling air carrying a large heat load flows into the atmosphere through the air outlet 18 of the end cover 15 of the transmission end, at the moment, the spiral cooling water channel 141 in the shell 14 works together with the forced air cooling inside the motor simultaneously, the cooling capacity of the motor is greatly improved, the power density and the overall performance of the motor can be obviously improved, and the medium-high speed driving pleasure of the vehicle is obviously improved,
although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (6)
1. The utility model provides a new energy automobile permanent-magnet machine, includes pivot (11), locates rotor punching subassembly (12) on pivot (11), is located stator module (13) of rotor punching subassembly (12) periphery, locates casing (14) of stator module (13) periphery, locates transmission end cover (15) of casing (14) one end and locates non-transmission end cover (16) of the casing (14) other end, its characterized in that: still include air inlet pipeline (2), along the air inlet direction, be equipped with air cleaner (3), compressor (4) and intercooler (5) on air inlet pipeline (2) in proper order, be equipped with air intake (17) on non-transmission end cover (16), be equipped with air outlet (18) on transmission end cover (15), air inlet pipeline (2) with air intake (17) link to each other.
2. The new energy automobile permanent magnet motor according to claim 1, characterized in that: the included angle between the air inlet direction of the air inlet (17) and the rotating shaft (11) is 45-90 degrees.
3. The new energy automobile permanent magnet motor according to claim 1, characterized in that: the air inlet (17) is arranged at the lower part of the non-transmission end cover (16), and the air outlet (18) is arranged at the upper part of the transmission end cover (15).
4. The new energy automobile permanent magnet motor according to claim 1, characterized in that: and lightening holes (121) which are axially arranged along the rotating shaft (11) are formed in the rotor punching sheet assembly (12).
5. The new energy automobile permanent magnet motor according to any one of claims 1 to 4, characterized in that: a spiral cooling water channel (141) is arranged in the shell (14), and cooling media are filled in the spiral cooling water channel (141).
6. The new energy automobile permanent magnet motor according to claim 5, characterized in that: still be equipped with check valve (6) on air inlet pipeline (2), check valve (6) are located air intake (17) with between intercooler (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918018.2A CN112564417A (en) | 2019-09-26 | 2019-09-26 | New energy automobile permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910918018.2A CN112564417A (en) | 2019-09-26 | 2019-09-26 | New energy automobile permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112564417A true CN112564417A (en) | 2021-03-26 |
Family
ID=75029971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910918018.2A Pending CN112564417A (en) | 2019-09-26 | 2019-09-26 | New energy automobile permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112564417A (en) |
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| CN106953468A (en) * | 2017-04-21 | 2017-07-14 | 扬州大学 | A pumping station motor air-conditioning cooling system and its application method |
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| US20180019642A1 (en) * | 2015-01-27 | 2018-01-18 | Xinjiang Goldwind Science & Technology Co., Ltd. | Permanent-magnet direct-drive wind power generator, system and stator thereof |
| CN108258849A (en) * | 2018-01-31 | 2018-07-06 | 华中科技大学 | A kind of totally-enclosed high-speed permanent magnet motor of Liquid injection cooling |
| CN108512360A (en) * | 2018-05-15 | 2018-09-07 | 朴昌金 | The dual-cooled device of turbo-dynamo |
| CN110138144A (en) * | 2019-06-06 | 2019-08-16 | 南京理工自动化研究院有限公司 | A kind of Over Electric Motor with PMSM cooling system and its control method |
-
2019
- 2019-09-26 CN CN201910918018.2A patent/CN112564417A/en active Pending
Patent Citations (17)
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| CN1463068A (en) * | 2002-05-30 | 2003-12-24 | 中国科学院电工研究所 | Device for recycling exhaust air and cooling fluid of condensator for evaporative cooling electric motor |
| CN201323492Y (en) * | 2008-12-08 | 2009-10-07 | 上海华普汽车有限公司 | ISG motor |
| CN103314510A (en) * | 2010-11-30 | 2013-09-18 | 雷埃尔有限责任公司 | Electric generator |
| CN201994781U (en) * | 2011-03-31 | 2011-09-28 | 鞍钢股份有限公司 | Main motor forced cooling device of straightening machine |
| CN102522840A (en) * | 2011-12-14 | 2012-06-27 | 大连钰霖电机有限公司 | Permanent-magnet motor rotor |
| CN103219831A (en) * | 2013-03-22 | 2013-07-24 | 天津市松正电动汽车技术股份有限公司 | Air-cooling motor and new energy automobile battery heating device |
| CN103475157A (en) * | 2013-09-29 | 2013-12-25 | 南车株洲电力机车研究所有限公司 | Air guiding device and permanent magnet synchronous motor with same |
| CN204013084U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | A kind of ventilation cooling structure of absolutely empty cooling type wind driven generator |
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| CN106100238A (en) * | 2016-08-12 | 2016-11-09 | 中车永济电机有限公司 | The efficiently self-ventilated machine of cooling heat radiation |
| CN106505797A (en) * | 2016-12-15 | 2017-03-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of onboard generators chiller |
| CN206430310U (en) * | 2016-12-30 | 2017-08-22 | 深圳市海吉源科技有限公司 | A kind of room ventilating apparatus |
| CN106953468A (en) * | 2017-04-21 | 2017-07-14 | 扬州大学 | A pumping station motor air-conditioning cooling system and its application method |
| CN108258849A (en) * | 2018-01-31 | 2018-07-06 | 华中科技大学 | A kind of totally-enclosed high-speed permanent magnet motor of Liquid injection cooling |
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Application publication date: 20210326 |
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