CN109286277A - A kind of power drive motor - Google Patents
A kind of power drive motor Download PDFInfo
- Publication number
- CN109286277A CN109286277A CN201811403344.1A CN201811403344A CN109286277A CN 109286277 A CN109286277 A CN 109286277A CN 201811403344 A CN201811403344 A CN 201811403344A CN 109286277 A CN109286277 A CN 109286277A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- power drive
- electric machine
- drive motor
- liquid
- 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
- 230000017525 heat dissipation Effects 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000000956 alloy Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 4
- -1 boron rare earth Chemical class 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910001020 Au alloy Inorganic materials 0.000 claims 1
- 239000003353 gold alloy Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of power drive motors, applied to electric car field, heat dissipation entrance are offered on electric machine casing and heat dissipation exports, radiator liquid enters in electric machine casing through heat dissipation entrance, and the liquid after temperature rise of absorbing heat is flowed out from heat dissipation outlet；Inside draining fluids to motor, motor internal heat dissipating is effectively realized.Fan blade is promoted by installing liquid in the shaft of magnetic steel rotor, when driving motor operates, magnetic steel rotor drives liquid that fan blade is promoted to rotate synchronously, and can independently realize circulation heat absorption, the heat dissipation of heat eliminating medium, improve heat dissipation utilization rate, reduce heat dissipation cost.
Description
Technical field
The invention belongs to electric vehicle engineering fields, and in particular to the power drive motor of pure electric automobile.
Background technique
Motor in electric automobile is using vehicle power supply as power, and Motor for Electric Automobile drives wheels travel, due to environment shadow
The opposite orthodox car of sound is smaller, and its prospects are considered optimistic wildly.
The most of electric cars in China are all the main raw material(s)s using lithium battery as power battery at present.Including ternary
Lithium, LiFePO4, LiMn2O4 and cobalt acid lithium etc..Power battery operating current is big, and the immediate cause that the motor feels hot is due to electric current
Caused by big, motor quantity of heat production is big, while motor is in the environment of a relative closure, in the temperature that will lead to motor entirety
It rises rapidly, in the maintenance practice of the vehicle of electric vehicle, the method for processing the motor feels hot failure, usually replacement motor, and frequency
Numerous replacement motor undoubtedly causes the increase with vehicle cost, while reducing user experience, if radiating treatment cannot be carried out in time
Or replacement motor, then there is thermal runaway, situation will be extremely dangerous, it is likely that will appear traveling failure, there are traffic safety
Hidden danger, it is therefore, just particularly important to battery heat dissipation.
Currently, the mode of motor radiating is usually fan cooling and liquid radiating at this stage, however, which kind of radiating mode
It is all disposed within outside motor greatly, heat dissipation effect is unobvious, and heat eliminating medium needs power source drive, higher cost.
Therefore, in view of problem above, it is necessary to propose a kind of novel power drive motor, can effectively realize in motor
Portion's heat dissipation, while can independently realize the circulation heat absorption of heat eliminating medium, heat dissipation, heat dissipation utilization rate is improved, heat dissipation cost is reduced.
Summary of the invention
In view of this, the invention proposes a kind of power drive motors, inside draining fluids to motor, effectively realize
Motor internal heat dissipating promotes fan blade by installing liquid in the shaft of magnetic steel rotor, when driving motor operates, magnetic steel rotor band
Hydrodynamic body promotes fan blade to rotate synchronously, and can independently realize circulation heat absorption, the heat dissipation of heat eliminating medium, improve heat dissipation utilization rate, reduce
Radiate cost.
A kind of power drive motor that purpose according to the present invention proposes, including electric machine casing, it is set to the motor casing
The stator winding and magnetic steel rotor in internal portion offer heat dissipation entrance on the electric machine casing and heat dissipation export, it is described radiate into
Mouth is connected to the inner cavity of the electric machine casing respectively with heat dissipation outlet, and radiator liquid enters in electric machine casing through heat dissipation entrance, is inhaled
Liquid after hot temperature rise is exported from the heat dissipation to flow out；
Liquid is installed in the shaft of the magnetic steel rotor and promotes fan blade, when driving motor operates, the magnetic steel rotor band hydrodynamic
Body promotes fan blade to rotate synchronously.
Preferably, the heat dissipation entrance and heat dissipation outlet are located at the front and rear end position of electric machine casing.
Preferably, it is centrifugal fan that the liquid, which promotes fan blade, when driving motor operates, the magnetic steel rotor band hydrodynamic
Body promotes fan blade to rotate synchronously, and radiator liquid is exported twist under the driving that liquid promotes fan blade from heat dissipation entrance to heat dissipation
Flowing.
Preferably, it is provided with axially disposed one or equally distributed multiple through holes on the magnetic steel rotor, dissipates
Hot liquid enters the front end of electric machine casing through the entrance that radiates, and via the rear end of the through hole flow direction motor shell, finally certainly
On the outside of heat dissipation outlet outflow electric machine casing.
Preferably, the power drive motor further includes radiator, and the radiator is set to the outer of the electric machine casing
Side, outlet are connected to heat dissipation entrance, entrance and heat dissipation outlet.
Preferably, the motor housing is alloy aluminium.
Preferably, the stator winding is made of non-alloy material.
Preferably, the magnetic steel rotor is using your surface lining of the boron rare earth magnetic steel as magnetic steel rotor of high temperature resistant.
Preferably, power drive motor front and back end is additionally provided with end cap, be equipped at end cap central position bearing with
Oil sealing, the bearing is to support magnetic steel rotor.
Preferably, the electric motor end cap uses alloy aluminium.
Compared with prior art, the advantages of power drive motor disclosed by the invention, is:
It is exported by offering heat dissipation entrance and heat dissipation on electric machine casing, radiator liquid enters electric machine casing through heat dissipation entrance
Interior, the liquid after temperature rise of absorbing heat is flowed out from heat dissipation outlet；Inside draining fluids to motor, motor internal heat dissipating is effectively realized.
Fan blade is promoted by installing liquid in the shaft of magnetic steel rotor, when driving motor operates, magnetic steel rotor band hydrodynamic
Body promotes fan blade to rotate synchronously, and can independently realize circulation heat absorption, the heat dissipation of heat eliminating medium, improve heat dissipation utilization rate, reduce heat dissipation
Cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the perspective view of power drive motor disclosed by the invention.
The title of corresponding component representated by number or letter in figure:
1, electric machine casing 2, stator winding 3, magnetic steel rotor 4, shaft 5, heat dissipation entrance 6, heat dissipation outlet 7, liquid promote
Fan blade 8, end cap 9, oil sealing 10, bearing.
Specific embodiment
Currently, the mode of motor radiating is usually fan cooling and liquid radiating at this stage, however, which kind of radiating mode
It is all disposed within outside motor greatly, heat dissipation effect is unobvious, and heat eliminating medium needs power source drive, higher cost.
The present invention aiming at the shortcomings in the prior art, proposes a kind of power drive motor, passes through draining fluids to motor
Motor internal heat dissipating is effectively realized in inside, promotes fan blade by installing liquid in the shaft of magnetic steel rotor, can independently realize scattered
The circulation heat absorption of thermal medium, heat dissipation improve heat dissipation utilization rate, reduce heat dissipation cost.
Technical solution of the present invention will be clearly and completely described by specific embodiment below.Obviously, it is retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
Referring to Figure 1, it as shown, a kind of power drive motor, including electric machine casing 1, is set to inside electric machine casing 1
Stator winding 2 and magnetic steel rotor 3, heat dissipation entrance 5 and heat dissipation outlet 6, heat dissipation entrance 5 and heat dissipation are offered on electric machine casing 1
Outlet 6 is connected to the inner cavity of electric machine casing 1 respectively, and radiator liquid enters in electric machine casing 1 through heat dissipation entrance 5, after temperature rise of absorbing heat
Liquid from heat dissipation outlet 6 outflow.
Wherein, electric machine casing 1 is made of high-strength alloy aluminium, can effectively mitigate the weight of driving motor entirety,
The intensity of motor housing is also increased simultaneously.
In order to improve the integral heat sink uniformity of motor, it is preferred that heat dissipation entrance 5 and heat dissipation outlet 6 are located at motor
At the front and rear end position of shell 1, realize that radiator liquid flowing in the front end of motor to rear end, improves heat dissipation effect.In order to
Radiating efficiency is further increased, can will radiate on the upper and lower sides at the respectively arranged motor both ends of entrance and heat dissipation outlet, and specifically set
Seated position is with no restrictions.
Further, power drive motor further includes radiator (not shown), and radiator is set to the outer of electric machine casing 1
Side, outlet are connected to heat dissipation entrance 5, and entrance is connected to heat dissipation outlet 6.The lower radiator liquid of temperature by radiator outlet
Discharge, by the road, heat dissipation entrance 5 enter electric machine casing 1 inside, after the heat for absorbing driving motor, the higher cooling fluid of temperature
Body flows into carry out heat exchange in radiator by the road through 6 discharge of heat dissipation outlet, and circulate operation, realizes electric machine casing later
Constantly heat dissipation.
Since generated thermal energy temperature rise will affect the power and efficiency of driving motor to driving motor in continuously running,
The course continuation mileage of pure electric automobile is seriously reduced, the energy consumption of battery increases and the demagnetization of magnetic steel rotor.Effectively to solve to drive
The stator winding 2 of dynamic motor and the integral heat sink problem of magnetic steel rotor 3, the new construction for preferably taking oil immersed type self-loopa to radiate.
Specifically, liquid is installed in the shaft 4 of magnetic steel rotor 3 and promotes fan blade 7, when driving motor operates, magnetic steel rotor 3 drives liquid
Fan blade 7 is promoted to rotate synchronously.Radiator liquid exports 6 helically from heat dissipation entrance 5 to heat dissipation under the driving that liquid promotes fan blade
Shape flowing.Since liquid promotes fan blade and motor to rotate synchronously in motor operation course, the work of a propulsion can be generated
Firmly, it realizes that the autonomous entrance that radiated of radiator liquid enters inside electric machine casing, and is excluded by heat dissipation outlet, so circulation dissipates
Heat is not necessarily to other power sources, saves cost, improves heat dissipation effect.
In addition, liquid promotes fan blade in the case where no radiator liquid, in the operating of motor, rotation drives the stream of air-flow
It is dynamic, while the effect of wind-cooling heat dissipating is played, improve radiating efficiency.
Liquid promotes fan blade preferably to use centrifugal fan, and the fan blade of other forms, wind can also be used in other embodiments
The structure of leaf, material and its with shaft be connected and fixed form, liquid promotes the quantity of fan blade, setting position is set as needed
Meter, specifically with no restrictions.
Wherein, radiator liquid uses oil liquid, it is preferred to use transformer oil is provided on magnetic steel rotor 3 axially disposed
One or equally distributed multiple through hole (not shown), the transformer oil with temperature rise and pressure enter after radiator cooling certainly
The dynamic heat dissipation entrance 5 for entering back into electric machine casing 1, to promote the self-loopa function of the realization heat dissipation carrier of blade 7 by liquid.
Stator winding is made of non-alloy material.Since non-alloy material has high density, low iron loss, resistance to temperature rise
Etc. metallic characters, can effectively increase the actual power of driving motor, greatly improve the whole work efficiency of driving motor,
With more the advantages such as small in size, light-weight, high-efficient, more applicable high-revolving automobile-used driving electricity compared with same conventional motors
Machine.
Magnetic steel rotor is using your surface lining of the boron rare earth magnetic steel as magnetic steel rotor of high temperature resistant.To effectively raise
Magnetic field strength, due to overcoming driving motor in long-time, the operation of large torque using your boron rare earth material magnet steel resistant to high temperature
In driving motor complete machine power caused by the demagnetization of generated temperature rise bring magnetic steel rotor reduce and the problem of energy consumption increases.
Power drive motor front and back end is additionally provided with end cap 8, and 8 center position of end cap is equipped with bearing 10 and oil sealing 9, axis
10 are held to support magnetic steel rotor 3.Electric motor end cap uses alloy aluminium, improves structural strength.
To sum up, the invention discloses a kind of power drive motors, by offering heat dissipation entrance on electric machine casing and dissipating
Heat outlet, radiator liquid enter in electric machine casing through heat dissipation entrance, and the liquid after temperature rise of absorbing heat is flowed out from heat dissipation outlet；Drainage-fluid
Inside body to motor, motor internal heat dissipating is effectively realized.Fan blade, driving are promoted by installing liquid in the shaft of magnetic steel rotor
When motor operates, magnetic steel rotor drives liquid that fan blade is promoted to rotate synchronously, and can independently realize the circulation heat absorption of heat eliminating medium, dissipate
Heat improves heat dissipation utilization rate, reduces heat dissipation cost.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, this hair
It is bright to be not intended to be limited to the embodiments shown herein, and be to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (10)
1. a kind of power drive motor turns including electric machine casing, the stator winding being set to inside the electric machine casing and magnet steel
Son, which is characterized in that heat dissipation entrance is offered on the electric machine casing and heat dissipation exports, the heat dissipation entrance and heat dissipation outlet point
It is not connected to the inner cavity of the electric machine casing, radiator liquid enters in electric machine casing through heat dissipation entrance, the liquid after temperature rise of absorbing heat
It exports and flows out from the heat dissipation；
Liquid is installed in the shaft of the magnetic steel rotor and promotes fan blade, when driving motor operates, the magnetic steel rotor band hydrodynamic
Body promotes fan blade to rotate synchronously.
2. power drive motor according to claim 1, which is characterized in that the heat dissipation entrance and heat dissipation outlet difference position
At the front and rear end position of electric machine casing.
3. power drive motor according to claim 1, which is characterized in that it is centrifugal wind that the liquid, which promotes fan blade,
Leaf, when driving motor operates, the magnetic steel rotor drives liquid that fan blade is promoted to rotate synchronously, and radiator liquid promotes fan blade in liquid
Driving under from heat dissipation entrance to heat dissipation outlet twist flow.
4. power drive motor according to claim 1, which is characterized in that be provided on the magnetic steel rotor and set along axial direction
One or the equally distributed multiple through holes set, radiator liquid enter the front end of electric machine casing through the entrance that radiates, and via institute
The rear end of through hole flow direction motor shell is stated, it is final from the outside of heat dissipation outlet outflow electric machine casing.
5. power drive motor according to claim 1, which is characterized in that the power drive motor further includes heat dissipation
Device, the radiator are set to the outside of the electric machine casing, and outlet is connected to heat dissipation entrance, and entrance and heat dissipation outlet connect
It is logical.
6. power drive motor according to claim 1-5, which is characterized in that the motor housing is alloy aluminum
Material.
7. power drive motor according to claim 1-5, which is characterized in that the stator winding uses non-gold
Alloy material production.
8. power drive motor according to claim 1-5, which is characterized in that the magnetic steel rotor uses resistance to height
Your surface lining of the boron rare earth magnetic steel as magnetic steel rotor of temperature.
9. power drive motor according to claim 1-5, which is characterized in that before and after the power drive motor
End is additionally provided with end cap, bearing and oil sealing is equipped at end cap central position, the bearing is to support magnetic steel rotor.
10. power drive motor according to claim 9, which is characterized in that the electric motor end cap uses alloy aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811403344.1A CN109286277A (en) | 2018-11-23 | 2018-11-23 | A kind of power drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811403344.1A CN109286277A (en) | 2018-11-23 | 2018-11-23 | A kind of power drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109286277A true CN109286277A (en) | 2019-01-29 |
Family
ID=65172874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811403344.1A Pending CN109286277A (en) | 2018-11-23 | 2018-11-23 | A kind of power drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286277A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU983909A1 (en) * | 1980-11-18 | 1982-12-23 | За витель В.Ф.Федоров ВСЕСОШЗдЛЙ 15 SUTulITU:/ I Ы ; I rcAH;r;J:C{.i j | Sealder electric motor |
| JP2004180479A (en) * | 2002-11-29 | 2004-06-24 | Nissan Motor Co Ltd | Cooling structure for motor |
| CN202034859U (en) * | 2011-03-22 | 2011-11-09 | 天津市松正电动汽车技术股份有限公司 | Liquid cooling system of motor |
| CN103081312A (en) * | 2011-03-02 | 2013-05-01 | 株式会社小松制作所 | Cooling mechanism for electric motor and electric motor |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN104979957A (en) * | 2014-04-11 | 2015-10-14 | 丰田自动车株式会社 | Rotary electrical machine cooling apparatus |
| CN206023491U (en) * | 2016-07-30 | 2017-03-15 | 开县正品诚赢科技发展有限责任公司 | Heat radiating type motor |
| CN108110956A (en) * | 2016-11-25 | 2018-06-01 | 三菱电机株式会社 | Electric rotating machine |
| CN108539889A (en) * | 2018-03-30 | 2018-09-14 | 合肥巨动力系统有限公司 | A kind of permanent-magnetic synchronous motor rotor air-cooled structure |
| CN209170142U (en) * | 2018-11-23 | 2019-07-26 | 宁波华表机械制造有限公司 | A kind of power drive motor |
-
2018
- 2018-11-23 CN CN201811403344.1A patent/CN109286277A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU983909A1 (en) * | 1980-11-18 | 1982-12-23 | За витель В.Ф.Федоров ВСЕСОШЗдЛЙ 15 SUTulITU:/ I Ы ; I rcAH;r;J:C{.i j | Sealder electric motor |
| JP2004180479A (en) * | 2002-11-29 | 2004-06-24 | Nissan Motor Co Ltd | Cooling structure for motor |
| CN103081312A (en) * | 2011-03-02 | 2013-05-01 | 株式会社小松制作所 | Cooling mechanism for electric motor and electric motor |
| CN202034859U (en) * | 2011-03-22 | 2011-11-09 | 天津市松正电动汽车技术股份有限公司 | Liquid cooling system of motor |
| CN103532307A (en) * | 2013-10-21 | 2014-01-22 | 南车株洲电力机车研究所有限公司 | Permanent magnet synchronous traction motor and oil cooling device thereof |
| CN104979957A (en) * | 2014-04-11 | 2015-10-14 | 丰田自动车株式会社 | Rotary electrical machine cooling apparatus |
| CN206023491U (en) * | 2016-07-30 | 2017-03-15 | 开县正品诚赢科技发展有限责任公司 | Heat radiating type motor |
| CN108110956A (en) * | 2016-11-25 | 2018-06-01 | 三菱电机株式会社 | Electric rotating machine |
| CN108539889A (en) * | 2018-03-30 | 2018-09-14 | 合肥巨动力系统有限公司 | A kind of permanent-magnetic synchronous motor rotor air-cooled structure |
| CN209170142U (en) * | 2018-11-23 | 2019-07-26 | 宁波华表机械制造有限公司 | A kind of power drive motor |
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