CN104300757A - Permanent magnet synchronous motor - Google Patents
Permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN104300757A CN104300757A CN201410573015.7A CN201410573015A CN104300757A CN 104300757 A CN104300757 A CN 104300757A CN 201410573015 A CN201410573015 A CN 201410573015A CN 104300757 A CN104300757 A CN 104300757A
- Authority
- CN
- China
- Prior art keywords
- air
- electromagnet
- cooling
- screen pack
- synchronous motor
- 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
Classifications
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- 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
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a permanent magnet synchronous motor. A transition air cylinder used for carrying out air cooling on the permanent magnet synchronous motor through cooling air and an electromagnet arranged in the transition air cylinder and used for adsorbing ferromagnetic impurities are arranged in the motor, the ferromagnetic impurities in the cooling air entering the transition air cylinder are filtered by means of magnetism obtained when the permanent magnet synchronous motor works and the electromagnet is powered on, and scrap iron and other impurities are effectively prevented from entering the motor while the permanent magnet synchronous motor is cooled in an air cooling mode.
Description
Technical field
The present invention relates to design of electrical motor field, particularly relate to a kind of permagnetic synchronous motor.
Background technology
Permagnetic synchronous motor is a kind of motor utilizing permanent magnet to provide magnetic field, permagnetic synchronous motor operationally heat can conduct mutually between each position of motor, convection current and radiation, the temperature of the stator coil end of permagnetic synchronous motor, permanent magnet and bearing is raised, easily cause the faults such as the demagnetization of end winding insulation damages, permanent magnet and bearing burnt, so during permagnetic synchronous motor work, the normal work of guarantee motor is taken away in the caloric requirement of inside by coolant, as the air-cooled type of cooling.
The rotor banding of permagnetic synchronous motor is magnetic, if motor adopts ordinary construction to open the air cooling way ventilated, iron powder, iron filings and charged dust etc. will enter motor internal and be adsorbed on the magnetic permanent-magnetic synchronous motor rotor surface of band, cause serious infringement to motor.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of permagnetic synchronous motor, can effectively prevent the impurity such as iron filings from entering motor while to the air-cooled cooling of permagnetic synchronous motor.
For achieving the above object, the invention provides a kind of permagnetic synchronous motor, the non-transmision end air inlet of described motor is provided with transition air duct, and described transition air duct comprises:
Electromagnet, is arranged in transition air duct, for adsorbing the ferromagnetics impurity in cooling-air.
Preferably, described transition air duct also comprises: wind deflector, wind scooper and screen pack;
Described wind deflector is all connected with described non-transmision end with described wind scooper, forms passage between described wind deflector and described wind scooper;
Described screen pack is arranged in described transition air duct, for filtering the impurity in cooling-air.
Preferably, described electromagnet comprises: the first electromagnet and the second electromagnet;
Described screen pack comprises: the first screen pack and the second screen pack;
Direction from from described transition air duct air inlet to described transition air duct inside is disposed with the first screen pack, the first electromagnet, the second screen pack and the second electromagnet, described first screen pack is all connected with described wind scooper with described wind deflector with the second screen pack, and described first electromagnet and the second electromagnet are all fixed on described transition air duct inwall;
Cooling-air enters described transition air duct from described transition air duct air inlet, first screen pack filters cooling-air, described first electromagnet adsorbs the ferromagnetics impurity in the cooling-air after described first filter screen filtration, described second screen pack filters the cooling-air through the first electromagnet, and described second electromagnet adsorbs the ferromagnetics impurity in the cooling-air after described second filter screen filtration.
Preferably, described motor also comprises:
Casing, driving end end cap, non-transmision end end cap, stator, rotor, stator shaft orientation air channel and rotor axial air channel;
Described driving end end cap and described non-transmision end end cap are fixedly connected on described casing two ends respectively, and form motor cavity, described non-transmision end end cap is provided with non-transmision end air inlet, and described driving end end cap is provided with air outlet;
Described rotor is arranged in described motor cavity;
Described stator is run through along the axis of described stator in described stator shaft orientation air channel, described rotor axial air channel along described rotor axially through described rotor;
The described cooling-air through the second electromagnet enters described motor cavity by non-transmision end air inlet, flows into motor cavity afterwards, flow out described motor finally by air outlet respectively through described stator shaft orientation air channel and described rotor axial air channel.
Permagnetic synchronous motor provided by the invention, be provided with for carrying out air-cooled transition air duct by cooling-air to described permagnetic synchronous motor and be arranged in transition air duct for adsorbing the electromagnet of ferromagnetics impurity in motor, the magnetic that when utilizing permagnetic synchronous motor to work, electromagnet energising obtains is filtered the ferromagnetics impurity entered in the cooling-air of transition air duct, can effectively prevent the impurity such as iron filings from entering motor while to the air-cooled cooling of permagnetic synchronous motor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is a kind of structural representation filtering the permagnetic synchronous motor of dirt cooling of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The object of the present invention is to provide a kind of permagnetic synchronous motor, can effectively prevent the impurity such as iron filings from entering motor while to the air-cooled cooling of permagnetic synchronous motor, the non-transmision end air inlet of described motor be provided with transition air duct, and described transition air duct comprises:
Electromagnet, is arranged in transition air duct, for adsorbing the ferromagnetics impurity in cooling-air.
Permagnetic synchronous motor provided by the invention is the air-cooled structure of open type, but the ferromagnetics impurity absorption will can passed through in the cooling-air in air channel by the magnetic of electromagnet when being energized arranged, prevent from, on the magnetic rotor part of ferromagnetics impurity absorption in permagnetic synchronous motor, causing damage on rotor and affecting the normal work of permagnetic synchronous motor.
Be illustrated in figure 1 the structural representation of the present invention one specific embodiment, non-transmision end air inlet 7 place of permagnetic synchronous motor is provided with transition air duct, and described transition air duct comprises:
Wind deflector 1, first screen pack 2, first electromagnet 3, second screen pack 4, second electromagnet 5 and wind scooper 6;
Described wind deflector 1 is all connected with described non-transmision end end cap 8 with described wind scooper 6, forms air channel between described wind deflector 1 and described wind scooper 6;
Direction from from described transition air duct air inlet to described transition air duct inside is disposed with the first screen pack 2, first electromagnet 3, second screen pack 4 and the second electromagnet 5, described first screen pack 2 is all connected with described wind scooper 6 with described wind deflector 1 with the second screen pack 4, and described first electromagnet 3 and the second electromagnet 5 are all fixed on described transition air duct inwall.
During permagnetic synchronous motor work, cooling-air enters described transition air duct by the air inlet of transition air duct, filter at the first screen pack 2 pairs of cooling-airs of described transition air duct air inlet, larger foreign material in cooling-air are carried out preliminary filtration, the cooling-air filtered through the first screen pack 2 continues through the first electromagnet 3, ferromagnetics impurity in first electromagnet 3 pairs cooling-air is as iron powder, iron filings etc. adsorb, cooling-air is through the second screen pack 4 afterwards, cooling-air after the first electromagnet 3 adsorbs ferromagnetics impurity is further filtered, the foreign material such as the less dust in cooling-air are filtered, filtered completely in order to ensure ferromagnetics impurity, by the absorption that the second electromagnet 5 carries out again to the ferromagnetics impurity in the cooling-air filtered through the second screen pack 4, filter out the tiny ferromagnetics impurity of the only a few contained in cooling-air as iron powder, cooling-air enters permagnetic synchronous motor Inner enclosure inside by non-transmision end air inlet 7 more afterwards.
The embodiment of permagnetic synchronous motor of the present invention effectively can stop other magazines such as ferromagnetics impurity and dust to enter permagnetic synchronous motor casing internal when opening and ventilating and carry out air-cooled, both can take away motor heat, and effectively can avoid again the hidden danger that the operation to permagnetic synchronous motor such as iron powder and dust brings.
Preferably, the distance between described wind deflector of the present invention and described wind scooper is adjustable, and the intake when size of air inlet can be cooled according to permagnetic synchronous motor regulates, and the cooling-air air quantity ensureing to enter permagnetic synchronous motor is sufficient and suitable.
As Fig. 1, described permagnetic synchronous motor also comprises:
Casing 9, driving end end cap 13, non-transmision end end cap 8, stator 10, rotor 11, stator shaft orientation air channel 15 and rotor axial air channel 16;
Described driving end end cap 13 is fixedly connected on described casing 9 two ends respectively with described non-transmision end end cap 8, and form motor cavity 14, described non-transmision end end cap 8 is provided with non-transmision end air inlet 7, and described driving end end cap 13 is provided with air outlet 12;
Described stator 10 and described rotor 11 are arranged in described motor cavity 14;
Described stator 10 is run through along the axis of described stator 10 in described stator shaft orientation air channel 15, described rotor axial air channel 16 along described rotor 11 axially through described rotor 11.
The major part that works in motor is stator 10 and rotor 11, part fixing in motor is called stator, installs the static main pole of paired DC excitation in the above, and rotating part is rotor, armature winding is equiped with above, induced electromotive force is produced after energising, serve as rotating magnetic field, stator and rotor easily produce heat, permagnetic synchronous motor needs to take away motor heat into supercooling, the cooling-air filtered through transition air duct enters motor cavity 14 by non-transmision end air inlet 7, cooling-air after filtration cools the stator 10 of permagnetic synchronous motor and rotor 11 respectively through stator shaft orientation air channel 15 and rotor axial air channel 16, after heat exchange, flow into motor cavity 14, described permagnetic synchronous motor is flowed out finally by air outlet 2.
Permagnetic synchronous motor is after operation a period of time, more impurity can be accumulated in transition air channel, need to carry out cleaning to it, first screen pack 2 and the second screen pack 4 only need take off by cleaning transition air channel, again by the first electromagnet 3 and the second electromagnet 5 power-off, ferromagnetics impurity is no longer adsorbed after electromagnet power-off, ferromagnetics impurity on first electromagnet 3 and the second electromagnet 5 is because Action of Gravity Field drops naturally, again to the first screen pack 2, second screen pack 4, first electromagnet 3 and the second electromagnet 5 carry out simple clean, again can be installed to after clean in transition air duct and continue to utilize.
Permagnetic synchronous motor in the embodiment of the present invention adopts ventilation and heat structure when opening, the dust in cooling-air and ferromagnetics impurity effectively can be adsorbed while air-cooled cooling, the screen pack played a role in filtering and electromagnet are easy to dismantle and clean, and ensure the filter capacity of its dust and the air quantity of air inlet.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above permagnetic synchronous motor provided by the present invention is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. a permagnetic synchronous motor, is characterized in that, the non-transmision end air inlet of described motor is provided with transition air duct, and described transition air duct comprises:
Electromagnet, is arranged in transition air duct, for adsorbing the ferromagnetics impurity in cooling-air.
2. permagnetic synchronous motor according to claim 1, is characterized in that, described transition air duct also comprises: wind deflector, wind scooper and screen pack;
Described wind deflector is all connected with described non-transmision end with described wind scooper, forms passage between described wind deflector and described wind scooper;
Described screen pack is arranged in described transition air duct, for filtering the impurity in cooling-air.
3. permagnetic synchronous motor according to claim 2, is characterized in that,
Described electromagnet comprises:
First electromagnet and the second electromagnet;
Described screen pack comprises:
First screen pack and the second screen pack;
Direction from from described transition air duct air inlet to described transition air duct inside is disposed with the first screen pack, the first electromagnet, the second screen pack and the second electromagnet, described first screen pack is all connected with described wind scooper with described wind deflector with the second screen pack, and described first electromagnet and the second electromagnet are all fixed on described transition air duct inwall;
Cooling-air enters described transition air duct from described transition air duct air inlet, first screen pack filters cooling-air, described first electromagnet adsorbs the ferromagnetics impurity in the cooling-air after described first filter screen filtration, described second screen pack filters the cooling-air through the first electromagnet, and described second electromagnet adsorbs the ferromagnetics impurity in the cooling-air after described second filter screen filtration.
4. permagnetic synchronous motor according to claim 1, is characterized in that, described motor also comprises:
Casing, driving end end cap, non-transmision end end cap, stator, rotor, stator shaft orientation air channel and rotor axial air channel;
Described driving end end cap and described non-transmision end end cap are fixedly connected on described casing two ends respectively, and form motor cavity, described non-transmision end end cap is provided with non-transmision end air inlet, and described driving end end cap is provided with air outlet;
Described rotor is arranged in described motor cavity;
Described stator is run through along the axis of described stator in described stator shaft orientation air channel, described rotor axial air channel along described rotor axially through described rotor;
The described cooling-air through the second electromagnet enters described motor cavity by non-transmision end air inlet, flows into motor cavity afterwards, flow out described motor finally by air outlet respectively through described stator shaft orientation air channel and described rotor axial air channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573015.7A CN104300757A (en) | 2014-10-24 | 2014-10-24 | Permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410573015.7A CN104300757A (en) | 2014-10-24 | 2014-10-24 | Permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104300757A true CN104300757A (en) | 2015-01-21 |
Family
ID=52320380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410573015.7A Pending CN104300757A (en) | 2014-10-24 | 2014-10-24 | Permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300757A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702024A (en) * | 2015-04-01 | 2015-06-10 | 哈尔滨工业大学 | Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector |
| CN105591497A (en) * | 2016-03-23 | 2016-05-18 | 中车永济电机有限公司 | Independent stator ventilating and cooling type permanent magnet motor |
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
| CN108736650A (en) * | 2018-07-12 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Side water cool ventilation cooling structure for large-scale dc motor |
| CN112564417A (en) * | 2019-09-26 | 2021-03-26 | 襄阳中车电机技术有限公司 | New energy automobile permanent magnet motor |
| WO2022229222A1 (en) * | 2021-04-28 | 2022-11-03 | Valeo Equipements Electriques Moteur | Electrical machine for traction system for self-propelled mobile device with optimized air cooling |
| WO2023273560A1 (en) * | 2021-06-30 | 2023-01-05 | 江苏瑞力泰铁路科技有限公司 | Outer rotor motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202391456U (en) * | 2011-12-22 | 2012-08-22 | 马安邦 | Electromagnetic ventilation dust-collecting device for mine |
| 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 |
| CN203722381U (en) * | 2014-01-21 | 2014-07-16 | 铁鎯电动工具有限公司 | Electric tool with dust filtering device |
-
2014
- 2014-10-24 CN CN201410573015.7A patent/CN104300757A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202391456U (en) * | 2011-12-22 | 2012-08-22 | 马安邦 | Electromagnetic ventilation dust-collecting device for mine |
| 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 |
| CN203722381U (en) * | 2014-01-21 | 2014-07-16 | 铁鎯电动工具有限公司 | Electric tool with dust filtering device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702024A (en) * | 2015-04-01 | 2015-06-10 | 哈尔滨工业大学 | Axial magnetic circuit multistage multi-pole tooth-space-omitted deceleration type motor protector |
| CN105591497A (en) * | 2016-03-23 | 2016-05-18 | 中车永济电机有限公司 | Independent stator ventilating and cooling type permanent magnet motor |
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
| CN108736650A (en) * | 2018-07-12 | 2018-11-02 | 哈尔滨电气动力装备有限公司 | Side water cool ventilation cooling structure for large-scale dc motor |
| CN108736650B (en) * | 2018-07-12 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Side water-cooling ventilation cooling structure for large direct-current motor |
| CN112564417A (en) * | 2019-09-26 | 2021-03-26 | 襄阳中车电机技术有限公司 | New energy automobile permanent magnet motor |
| WO2022229222A1 (en) * | 2021-04-28 | 2022-11-03 | Valeo Equipements Electriques Moteur | Electrical machine for traction system for self-propelled mobile device with optimized air cooling |
| FR3122538A1 (en) * | 2021-04-28 | 2022-11-04 | Valeo Equipements Electriques Moteur | Electric machine for traction system for self-propelled mobile device with optimized air cooling. |
| WO2023273560A1 (en) * | 2021-06-30 | 2023-01-05 | 江苏瑞力泰铁路科技有限公司 | Outer rotor motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104300757A (en) | Permanent magnet synchronous motor | |
| CN204497889U (en) | The permanent magnetic brushless that rotor is dust-proof | |
| WO2010119281A3 (en) | Electric machine - evaporative cooling | |
| CN203674892U (en) | Air cooling structure of permanent magnet synchronous traction motor | |
| WO2012046083A3 (en) | Wheel-hub motor cooling | |
| JP6095263B2 (en) | Embedded magnet type motor and compressor | |
| CN103490558B (en) | Direct wind-driven generator cooling system | |
| RU2725180C1 (en) | Closed ventilation and cooling of cellular type device | |
| CN104539078A (en) | Permanent magnet brushless motor comprising rotor with dustproof structure | |
| CN102738934A (en) | External-rotor intermediate-frequency permanent magnet generator device | |
| CN103475157B (en) | Air guiding device and permanent magnet synchronous motor with same | |
| CN107591941A (en) | Alternating current generator with cooling system | |
| CN204098998U (en) | Electromagnetic motor oil rectifier | |
| CN108282058B (en) | Electric machine and grounding device for an electric machine | |
| CN206498298U (en) | A kind of complete machine cooling structure of novel water-cooled magneto | |
| CN210157003U (en) | Dustproof and convenient to detach's motor housing | |
| CN104320940A (en) | Dust mesh enclosure for communication equipment cabinet | |
| CN207819676U (en) | A kind of novel ventilated motor | |
| CN204376630U (en) | A kind of rotor with fan leaf | |
| CN208316433U (en) | A kind of aeration type is low to damage efficient reluctance motor | |
| CN107261717A (en) | Net-filter assembly and air-conditioning | |
| CN106451985A (en) | Stator structure and brushless direct-current motor | |
| CN102904385A (en) | Amorphous stator water-cooling permanent magnet disc type motor | |
| CN107961456A (en) | A kind of mask with replaceable cartridge | |
| US20200212743A1 (en) | Method of manufacturing rotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
|
| RJ01 | Rejection of invention patent application after publication |