CN105162288B - Circulation cooling electromechanical in a kind of oil - Google Patents
Circulation cooling electromechanical in a kind of oil Download PDFInfo
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- CN105162288B CN105162288B CN201510489519.5A CN201510489519A CN105162288B CN 105162288 B CN105162288 B CN 105162288B CN 201510489519 A CN201510489519 A CN 201510489519A CN 105162288 B CN105162288 B CN 105162288B
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- oil
- cooling
- cooling oil
- rotor
- frequency conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
Circulation cooling electromechanical in a kind of oil, including cooling oil conveying frequency conversion pump assembly 26, cooled oil heat exchanger 27, cooling oil cooling fan 28, enclosed motor 29, cooling oil conveyance conduit 25, it is characterised in that：Cooling oil oil inlet 4 and cooling oil oil-out 5 are provided with described enclosed motor casing 1, the external diameter of stator 6 and casing 1 are the same as being provided with cooling oil passage 30 between internal diameter, the both ends of the surface of the rotor ball 32 of rotor 7 are provided with front shroud 14 and back shroud 15, a smooth cylindrical outer surface is combined into rotor ball 32, armature spindle 13 is respectively arranged with Front oil seal 11 and Rear oil seal 36 in the inner side of fore bearing 10 and rear bearing 9.
Description
Technical field
The present invention relates to circulation cooling electromechanical in a kind of oil.
Background technology
Cooling for micro-machine at present using cooling means and internal cooling method outside wind, also has using electric machine casing
Interlayer water-cooling method.But the cooling means of the above can not meet the requirement efficiently cooled down, then have large-size machine using wire
Endoporus leads to the coolant type of cooling, but volume is big, complex process, for requiring small volume, in light weight and high efficiency and heat radiation motor
The equal existing defects of above method, how the radiating effectively to rotor is even more the unsolved problem of current technology,
Even the heat dissipation problem of big its rotor of motor of wire inner-cooled also and do not solve effective rotor heat dissipation problem.With science skill
Requirement of the development and the mankind of art to environmental protection, low-carbon energy-saving have been the main flows of today's society, how to effectively improve electricity
Engine efficiency, the power to weight ratio coefficient of motor is improved, reaches energy-efficient requirement, be current urgent problem.But how
It is to effectively improve that high efficiency and heat radiation is realized to motorThe effective way of electric efficiency energy-saving and emission-reduction。
The content of the invention
In view of prior art is insufficient, it is an object of the invention to provide circulation cooling electromechanical in a kind of oil.
To achieve these goals, the technical scheme is that：Circulation cooling electromechanical in a kind of oil, includingCooling oil is defeated Send frequency conversion pump assembly, cooled oil heat exchanger, cooling fan, enclosed motor and oily conveyance conduit, described enclosed motor
Cooling oil passage, front and rear two outer face for the rotor ball being arranged on armature spindle are provided between stator outer diameter and casing internal diameter
Be provided with the front and back end cover plate of two insertion armature spindles, by under two nuts on the outside of the cover plate of front and back end and armature spindle fastening, and and rotor
Ball is combined into the cylinder of a smooth outer surface, and motor front and back bearings are respectively arranged with oil sealing, motor casing by rotor ball inside portion
Cooling oil inlet and outlet are provided with body.
Further, the described rotor ball being arranged on armature spindle and be arranged on the end casing of rotor ball rear and front end by
Two nuts with armature spindle in the case where fastening on the outside of the cover plate of front and back end, the cylinder of the smooth outer surface combined, its rotor ball
Rotor balance is provided between end and front and back end cover plate, rotor balance is to be fixed on front and rear cover by screw or balancing patch
The front and back end cover plate medial surface that plate and rotor ball are in contact, is provided with nut clamp nut outside the cover plate of front and back end, will can cover
Plate is firm in rotor ball both ends of the surface.
Further, described enclosed motor is respectively arranged with a seal in motor front and rear covers bearing inside portion, uses
To prevent motor internal cooling machine oil from leaking.
Further, described cooling oil conveying frequency conversion oil pump assy is to control rotating speed by CPU, closed according to being arranged on
The signal value of the thermocouple probe of motor internal stator winding controls the pump housing working speed of frequency conversion oil pump assy through CPU processing,
Reach the output valve purpose realized and change pump housing cooling oil flow, to change the radiating effect of enclosed motor, realize to closing
The controllable heat dissipation of formula motor.
Advantages of the present invention：UsingLow viscosity is high voltage withstandingNon-conductive cooling oil to enclosed motor inside rotor and around
Group carries out direct cooling, good cooling results, relative to air-cooled using motor housing interlayer oil injection type, water-cooled and shell
All there is excellent radiating effect with internally air-cooled.Air cooling is compared in oil medium directly coolingHeat contentValue is high, from the point of view of specific heat, air
Specific heat（1.003KJ /kg·℃ ）, the specific heat of water（4.2KJ/kg·℃）, oily specific heat（2.1KJ/kg·℃）.Compare
Under water and oilHeat contentValue is all higher than air, radiating key be the temperature difference between heat-conduction medium and rotor and winding and
Pass through the flow of medium and mediumHeat content, the temperature difference is high, and flow is big, mediumHeat contentHeight, then radiating effect is all right, while
It is controllable on rate-of flow, is to be controlled to change frequency conversion by CPU according to the requirement of actual use by the signal of temp probe feedback
The rotating speed of oil pump reaches the method control radiating effect of adjustment rate-of flow.But due to cooling oil when working rotor rotates
Surface tension can produce resistance to rotor motion process.By taking 22KW magnetoes as an example, when rotating speed is below 2000 revs/min,
Liquid tension resistance damage be more than 1.3%, this drag losses and it is air-cooled when mechanical loss be close, if but rotating speed is high, reach
At 3000 revs/min, then loss rises to 3.5%, and this resistance damage is with the square directly proportional of rotating speed.Thus this technology, which is applied, is turning
Then effect is preferable for the high-power Low speed electric motor of less than 2000 revs/min of speed, the particularly application on hybrid vehicle at present
There is preferably applicable effect, hybrid vehicle is worked in high speed using fuel power, then switches motorized motions during low speed.This
Sample, by fuel power driving dynamically working fuel power in efficient situation, low speed can be made then to enter poorly efficient operating mode during high speed, because
And switch motorized motions, now then efficiency is again very high for electric drive, while can reach the effect of emission reduction again.Directly cooled down using medium
The copper loss of stator and the iron loss of motor can be effectively reduced, hot spoke of the stator to rotor can be effectively prevented for magneto
Penetrate, be even more to solve this difficult problem of rotor radiating, asynchronous machine rotor high current low-voltage temperature high fever for asynchronous machine
Loss is big, does not there is effective solution method also at present.The invention can be achieved that electric efficiency is high, and small volume is in light weight, particularly pair
It is commonly employed prospect in the use of current pure electric automobile industry.
Brief description of the drawings
Fig. 1 is circulation cooling electromechanical principle schematic diagram in oil of the embodiment of the present invention.
Fig. 2 is enclosed type electric motor rotor structure method A schematic diagrames of the embodiment of the present invention.
Fig. 3 is enclosed type electric motor rotor structure method B schematic diagrames of the embodiment of the present invention.
Embodiment
The present invention is further elaborated with reference to the accompanying drawings and examples.
With reference to figure 1,2,3, circulating cooling enclosed motor 29 in the present embodiment operation principle, structural representation, including oil,Cooling oil conveys variable frequency pumpAssembly 26, cooling oil delivery pipe 25, cooling oil delivery pipe 25 respectively andCooling oil conveying variable frequency pump is total Into 26And enclosed motorCooling oil oil-out5 are connected,Cooling oil conveying frequency conversion pump assembly 26 exportsWith cooling oil heat exchange
The import of device 27 is connected, in cooled oil heat exchanger 27OutletPass through petroleum pipeline 25 and enclosed motor 29Cooling oil is entered Hydraulic fluid port4 are connected, and described enclosed motor is in the external diameter of stator 6 and casing 1 by convex tendon 31Support, its stator and the interlayer of casing 1 Space is cooling oil passage 30；The rotor 7 of described enclosed motor is by armature spindle 13 and the front shroud 14 of rotor ball 32, rotor
The back shroud 15 of ball 32, the rear-end plate balance weight 16 of rotor ball 32, the front shroud fixing nut 18 of rotor ball 32, rotor ball front shroud are put down
Weigh block 17, and rotor ball back shroud fixing nut 19 combines,There are fore bearing 10 and rear bearing 9 before and after armature spindle 13, set respectively It is equipped with Front oil seal 11 and Rear oil seal 36。Fig. 2 showsEnclosed type electric motor rotor structure method A.Described armature spindle 13 runs through rotor ball
32 are fixed, and described rotor ball 32 is fixed by aluminium die casting to be shaped, and rear ends are fixed with front shroud 14 and back shroud 15, rotor ball
32 and front shroud 14, back shroud 15 be combined into the cylinder geometry shape of a smooth surface, can so reduce when rotor rotates by
Resistance loss caused by cooling oil surface tension.DescribedRotor ball front shroud 14, back shroud 15 is respectively by rotor ballBefore front end Cover plate 14Fixing nut 18 and rotor ballRear end back shroud 15Fixing nut 19 is fixed on rotor ball 32 by armature spindle 13 respectively
Both ends, described rotor ballFront end front shroud14 and rotor ball rear endBack shroud 15Respectively in two end cover plate by rotor ball 32
Side is provided with rotor ballRear end back shroudBalance weight 16 and rotor ballFront end front shroud 14Balance weight 17, and balance weight is each attached to
Both endsFront and rear cover plate 14,15On, to balance the rotary inertia of rotor, simultaneously becauseBalance weight 16,17Be arranged on inner side, not becauseBalance weight 16,17The special type of planform and produce rotor7Resistance loss during rotation.Fig. 3 is enclosed type electric motor rotor structure Method B schematic diagrames,Method B is similar with method A, but difference is：1st, the both ends of the surface of its rotor ball 32 are respectively arranged with rotor ball
Front end fixation clip 23 and rotor ball rear end fixation clip 24, front and back end twoFixation clipPass through the front end fixing nut of rotor ball 32
20 and rotor ball 32Rear end fixing nut 21Rotor ball 32 is fixed by bolt 33；2、Rotor ball front end front shroud 14WithRear end The method B of back shroud 15 and method AOtherwise varied in structure, as Fig. 2, Fig. 3 show, rotor ball front end fixation clip 23 and rear end are consolidated
Fixed pressuring plate 24 and rotor ballFront end fixing nut 20WithRotor ball rear end fixing nut 21And fixing bolt 33 is arranged at and turned
Bulbec rear and front end face and rotor ball front and back endBetween front shroud 14, back shroud 15, front and rear cover plate 14,15Outer surface and rotor
The outer surface of ball 32 forms a smooth cylinder outer surface, reaches reductionRotor 7Motion is because of caused by cooling oil tension force
Resistance.
During implementation,Cooling oil conveys frequency conversion pump assembly26 work, cooling oil are handed over through cooling oil delivery pipe 25 through cooling oil heat
Parallel operation 27, is cooled down simultaneouslyOil heat exchanger cooling fan 28Cooling radiating is carried out to cooled oil heat exchanger 27, after cooling
Cooling oil enters enclosed motor 29 through cooling oil delivery pipe 25Cooling oil oil inlet4 enter the inner chamber rear chamber of enclosed motor 29
Enter enclosed motor inner chamber cup through cooling oil passage 30 and the rotor inter-air space 37, thereafter fromEnclosed motor 29 it is cold Oily oil-out5 go out, and enter cooling oil through cooling oil petroleum pipeline 25ConveyingFrequency conversion pump assembly 26, form a kind of enclosed cooling oil and follow
Loop system, realize to enclosed type electric machine rotor 7, stator 6 andWinding 8Cooling, be provided with temp probe 34, can be by cpu system
35 controlsCooling oil conveys frequency conversion pump assembly26 pump housing working speed, according to aroundGroup 8The change of temperature and change,Cooling oil is defeated Frequency conversion pump assembly 26 is sent to existWhen rotating speed detection temperature is high thenCooling oil conveys frequency conversion pump assembly26 pump housing rotating speeds are high, otherwise detection temperature
Spend it is low thenCooling oil conveys frequency conversion pump assembly26 rotating speeds are low, normally by cooling-oil outlet temperature control between 45 DEG C~60 DEG C it is cold
But effect is good.
Claims (1)
1. circulation cooling electromechanical in a kind of oil, including cooling oil conveying frequency conversion pump assembly (26), cooled oil heat exchanger（27）, it is cold
Oily cooling fan（28）, enclosed motor（29）, cooling oil delivery pipe（25）, it is characterised in that：Enclosed motor（29）'s
Casing（1）On be provided with cooling oil oil inlet（4）With cooling oil oil-out（5）, cooling oil delivery pipe（25）Respectively and cooling oil
Convey frequency conversion pump assembly（26）And enclosed motor（29）Cooling oil oil-out（5）It is connected, cooling oil conveying variable frequency pump is total
Into（26）Outlet and cooled oil heat exchanger（27）Import be connected, cooled oil heat exchanger（27）Outlet pass through cooling
Oily delivery pipe（25）And enclosed motor（29）Cooling oil oil inlet（4）It is connected, stator（6）External diameter and casing（1）Internal diameter
Between be provided with cooling oil passage（30）, rotor（7）Rotor ball（32）Both ends of the surface be provided with front shroud（14）And back shroud
（15）, front shroud（14）, back shroud（15）With rotor ball（32）It is combined into a smooth cylindrical outer surface, armature spindle（13）
Fore bearing（10）With rear bearing（9）Inner side be respectively arranged with Front oil seal（11）And Rear oil seal（36）；Described enclosed motor
（29）Rotor（7）Rotor ball（32）Front shroud（14）And back shroud（15）Medial surface and rotor ball（32）Both ends of the surface are adjacent
Place is respectively arranged with the rotor ball front shroud balance weight being fixed on the inside of front shroud（17）With the bonnet being fixed on the inside of back shroud
Plate balance weight（16）, in rotor ball（32）Front shroud（14）Outside be provided with and armature spindle（13）The front shroud being fixedly connected is consolidated
Determine nut（18）, in rotor ball（32）Back shroud（15）Outside be provided with and armature spindle（13）After the rotor ball being fixedly connected
Cover plate fixing nut（19）；Described cooling oil conveying frequency conversion oil pump assy（26）It is by cpu system（35）Rotating speed is controlled, according to
It is arranged on enclosed motor（29）Internal stator（6）The temp probe of winding（34）Signal value through cpu system（35）Processing, control
Cooling oil processed conveys frequency conversion oil pump assy（26）Pump housing working speed, reach realization change cooling oil conveying frequency conversion oil pump assy
（26）The output valve purpose of cooling oil flow, to change enclosed motor（29）Radiating effect, realize to enclosed motor
（29）Controllable heat dissipation；During implementation, cooling oil conveying frequency conversion pump assembly（26）Work, cooling oil is through cooling oil delivery pipe（25）Enter
Enter cooled oil heat exchanger（27）, while cooling oil cooling fan（28）To cooled oil heat exchanger（27）Cooling radiating is carried out,
Cooling oil after cooling is through cooling oil delivery pipe（25）Afterwards from enclosed motor（29）Cooling oil oil inlet（4）Into closed
Motor（29）Inner chamber rear chamber, then through cooling oil passage（30）With the rotor inter-air space（37）Into enclosed motor（29）It is interior
Chamber cup, thereafter from enclosed motor（29）Cooling oil oil-out（5）Go out, through cooling oil petroleum pipeline（25）It is defeated into cooling oil
Send frequency conversion pump assembly（26）, a kind of enclosed cooling oil circulating system is formed, is realized to enclosed motor（29）Rotor（7）, it is fixed
Son（6）And winding（8）Cooling, by cpu system（35）Control cooling oil conveying frequency conversion pump assembly（26）Pump housing working speed,
According to winding（8）The change of temperature and change, in temp probe（34）Then cooling oil conveys frequency conversion pump assembly when detection temperature is high
（26）Rotating speed is high, otherwise the low then cooling oil conveying frequency conversion pump assembly of detection temperature（26）Rotating speed is low, by cooling oil temperature at outlet
Control is between 45 DEG C~60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489519.5A CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489519.5A CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105162288A CN105162288A (en) | 2015-12-16 |
| CN105162288B true CN105162288B (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489519.5A Expired - Fee Related CN105162288B (en) | 2015-08-12 | 2015-08-12 | Circulation cooling electromechanical in a kind of oil |
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| Country | Link |
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| CN (1) | CN105162288B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712391B (en) * | 2017-02-21 | 2019-07-09 | 福安市裕兴机械有限公司 | Self-loopa cools down Oil pump electrical machinery |
| CN109617310A (en) * | 2018-10-23 | 2019-04-12 | 展欣（宁波）新能源科技有限公司 | A kind of hub motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886905Y (en) * | 2006-04-03 | 2007-04-04 | 中国北车集团永济电机厂 | Fully enclosed variable-frequency speed-regulating asynchronous motor |
| CN101034828A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Water-cooling three-phase asynchronous high-speed motor |
| CN103703659A (en) * | 2011-07-28 | 2014-04-02 | 丰田自动车株式会社 | Rotary electric machine and method for controlling rotary electric machine |
| CN205248989U (en) * | 2015-08-12 | 2016-05-18 | 福安市广源机电有限公司 | Circulative cooling motor in oil |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010239799A (en) * | 2009-03-31 | 2010-10-21 | Aisin Aw Co Ltd | Rotating electric machine and end plate for rotating electric machine |
| JP5545180B2 (en) * | 2010-11-11 | 2014-07-09 | トヨタ自動車株式会社 | Rotating electric machine |
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2015
- 2015-08-12 CN CN201510489519.5A patent/CN105162288B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034828A (en) * | 2006-03-07 | 2007-09-12 | 上海上电电机有限公司 | Water-cooling three-phase asynchronous high-speed motor |
| CN2886905Y (en) * | 2006-04-03 | 2007-04-04 | 中国北车集团永济电机厂 | Fully enclosed variable-frequency speed-regulating asynchronous motor |
| CN103703659A (en) * | 2011-07-28 | 2014-04-02 | 丰田自动车株式会社 | Rotary electric machine and method for controlling rotary electric machine |
| CN205248989U (en) * | 2015-08-12 | 2016-05-18 | 福安市广源机电有限公司 | Circulative cooling motor in oil |
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| Publication number | Publication date |
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| CN105162288A (en) | 2015-12-16 |
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Granted publication date: 20180327 Termination date: 20180812 |