CN109301960A - A kind of electric car and water-cooled machine - Google Patents
A kind of electric car and water-cooled machine Download PDFInfo
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- CN109301960A CN109301960A CN201811210832.0A CN201811210832A CN109301960A CN 109301960 A CN109301960 A CN 109301960A CN 201811210832 A CN201811210832 A CN 201811210832A CN 109301960 A CN109301960 A CN 109301960A
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- 238000001816 cooling Methods 0.000 claims abstract description 177
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000000110 cooling liquid Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 35
- 230000008676 import Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 21
- 238000005266 casting Methods 0.000 description 6
- 206010037660 Pyrexia Diseases 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
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Classifications
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a kind of electric car and water-cooled machines.Electric car includes the water-cooled machine being arranged on vehicle chassis, the water-cooled machine includes the shaft of motor housing and rolling assembling in motor housing, rotor is provided in the shaft, the rotor includes the cyclic annular fixed part being fixed on motor housing and the rotating part with shaft rotation, the annular groove for the inserting of cyclic annular fixed part is provided on the rotating part, each side clearance of the ring-type fixed part and annular groove cooperates, the rotor cooling duct logical for cooling liquid stream is provided in the wall of the ring-type fixed part, the inlet and outlet of the rotor cooling duct is arranged at the corresponding position for the motor housing being fixedly connected with cyclic annular fixed part.The static water cooling to rotor is realized by the way that rotor cooling duct is arranged in annular rotor yoke, the sealing performance for enhancing rotor cooling duct by rotary seal structure is not needed, reduces the production and maintenance cost of water-cooled machine.
Description
Technical field
The present invention relates to technical field of motors more particularly to a kind of electric cars and water-cooled machine.
Background technique
Transmission fuel-engined vehicle can generate a large amount of vehicle exhaust and pollute the environment, with social to ecology in recent years
The continuous attention of environment, people are studying the new-energy automobile of various low-carbon environment-friendlies always it is expected that future can replace combustion completely
Petrol car.The new-energy automobile researched and developed both at home and abroad at present is mainly electric car, and electric car is mainly with driving motor
As a source of power, the electric energy of power battery can be converted the mechanical energy of driving automobile front driving by driving motor, therefore, driving electricity
The excellent service ability for directly determining electric car of machine performance.
Driving motor in use it is easy to appear fever phenomenon, driving motor overload, voltage it is too high or too low
Etc. reasons easily cause the fever of driving motor, and the fever meeting of driving motor is so that the insulation temperature of coil windings rises,
The aging of accelerating coil winding reduces the service life of driving motor.In addition, the raising of driving motor internal temperature also will cause
The resistance value of coil windings increases, and increases the resistance loss of coil windings, reduces the working efficiency of driving motor.It is driven to reduce
The fever phenomenon of motor is moved, is both provided with special cooling structure greatly on existing driving motor.
The cooling structure of driving motor can be divided into cooling structure of stator and rotor cooling structure at present.Cooling structure of stator
Mostly it is shell water-cooling structure, the channel of Cooling Water circulation is provided on the shell of driving motor, the heat that stator generates is logical
The cooling water for crossing flowing is taken to the external world, to achieve the purpose that reduce temperature rise.Since the rotor of driving motor is in driving electricity
Machine is in rotation status, the bad realization of water-cooled effect when operating always, and the rotor of domestic driving motor mostly uses air-cooled structure,
The heat that rotor generates quickly is dispersed by the air-flow of flowing, but in practical application, air-cooled cooling effect is bad, in order to
Driving motor is avoided to run bad situation, rotor core usually has certain temperature design allowance, so that rotor iron
Core can adapt to certain condition of high temperature.At present both at home and abroad there are also the driving motor to be cooled down to rotor using water cooling,
But the structure of these driving motors is mostly more complicated, such as application publication number is the Chinese invention patent Shen of CN107457606A
Cooling structure and temperature cooperative control system inside and outside a kind of moving load with high speed electro spindle please be disclose, the electricity of the asynchronous machine is main
Axis is internally provided with squirrel-cage coolant flow channel, and squirrel-cage coolant flow channel includes in the cooling inflow channel in electro spindle inside and electro spindle
Portion cooling for reflux channel, the coolant liquid for flowing through squirrel-cage coolant flow channel realize cooling to electro spindle and rotor.Electro spindle
Outside be additionally provided with outer annular cooling duct, the setting of outer annular cooling duct is cooling in stator sleeve coolant jacket, fore bearing
The inside of set, rear bearing coolant jacket, the coolant liquid for flowing through outer annular cooling duct realize cooling to stator.Due to above-mentioned
It is arranged in electro spindle in asynchronous machine for cooling down the squirrel-cage coolant flow channel of rotor, and electro spindle is when asynchronous machine is run
Always be in rotary state, in order to enhance squirrel-cage coolant flow channel inlet and outlet sealing effect, avoid coolant liquid from existing
The case where flowing out when electro spindle rotates from junction, the junction of electro spindle need to be arranged rotary seal structure, and rotatory sealing
The setting of structure increases the production and technology difficulty of asynchronous machine, and then increases the manufacturing cost of asynchronous machine, and revolve
Turn sealing structure and there is the case where abrasion when in use, needs to replace rotary seal structure when serious wear, this contracting
The short maintenance period of asynchronous machine, reduces asynchronous machine reliability of operation.
Summary of the invention
The purpose of the present invention is to provide a kind of water-cooled machines, for solving driving motor in the prior art for cooling down
The cooling structure of rotor needs to increase driving motor production cost by the leakproofness of rotary seal structure enhancing coolant flow channel
The technical issues of.It is existing for solving the object of the invention is also to provide a kind of electric car using above-mentioned water-cooled machine
The cooling structure that the driving motor of electric car is used to cool down rotor in technology needs to enhance cooling stream by rotary seal structure
The leakproofness in road, the technical issues of increasing driving motor production cost.
To achieve the above object, water-cooled machine of the invention adopts the following technical scheme that:
Water-cooled machine includes the shaft of motor housing and rolling assembling in motor housing, is provided with and turns in the shaft
Son, the rotor include the cyclic annular fixed part being fixed on motor housing and with shaft rotate rotating part, it is described
The annular groove for the inserting of cyclic annular fixed part is provided on rotating part, the ring-type fixed part and each side clearance of annular groove are matched
It closes, the rotor cooling duct logical for cooling liquid stream is provided in the wall of the ring-type fixed part, the rotor cooling duct
Inlet and outlet is arranged at the corresponding position for the motor housing being fixedly connected with cyclic annular fixed part.
The utility model has the advantages that the static water cooling to rotor is realized by the way that rotor cooling duct is arranged in cyclic annular fixed part,
The sealing performance for enhancing rotor cooling duct by rotary seal structure is not needed, the maintenance period of water-cooled machine is extended,
The internal temperature high point for having effectively eliminated water-cooled machine, improves the operational reliability of water-cooled machine.
Further, the rotor cooling duct has multiple, each rotor cooling duct along cyclic annular fixed part circumferential direction
It is spaced apart.By quick in the heat energy that circumferentially the multiple rotor cooling ducts of setting generate each position of rotor
It disperses, improves the heat-sinking capability of cooling motor.
Further, each rotor cooling duct is a pair of two-by-two constitutes rotor cooling duct group, in the group of each rotor cooling duct
Two rotor cooling ducts pass through the communicating passage that is arranged in motor housing and be connected in series.Reduce rotor cooling duct
The quantity of inlet and outlet.
Further, it is additionally provided in the motor housing for the cooling stator being fixed on motor housing inner sidewall
Shell cooling duct.Realize the cooling to stator.
Further, the shell cooling duct is identical as the number of rotor cooling duct, each shell cooling duct difference
It is connected in series with corresponding rotor cooling duct.Reduce the inlet and outlet of shell cooling duct and rotor cooling duct
Quantity simplifies the arrangement form of cooling duct.
Further, before the motor housing includes cylindrical case and is arranged at the port of cylindrical case rear and front end
End cap and rear end cap, the ring-type fixed part are fixed on rear end cap, shell cooling duct setting in cylindrical case and
In rear end cap.By facilitating the processing to shell cooling duct for motor housing split settings.
Further, each shell cooling duct constituted with corresponding concatenated rotor cooling duct respectively one it is complete cold
The import in but channel, each cooling duct is converged by external pipe and forms a total liquid inlet port in the external of water-cooled machine,
Converged by external pipe and form a total liquid outlet in the external of water-cooled machine in the outlet of each cooling duct.Liquid inlet port and
The setting of liquid outlet facilitates injection and recycling to coolant liquid, can infusing to multiple cooling ducts by liquid injecting mouth
Liquid is recycled by the coolant liquid that liquid outlet can flow out multiple cooling ducts.
Further, the cyclic annular fixed part is fixed on rear end cap by threaded fastener, the ring-type fixed part
Point rear end face on be arranged at intervals with multiple install fixed threaded securing bores for threaded fastener along the circumferential direction.Screw thread is tight
Firmware is easy for installation and removal.
Further, water-cooled machine further includes the motor base that motor housing bottom is arranged in.Facilitate water-cooled machine
Installation and placement.
Electric car of the invention adopts the following technical scheme that:
Electric car includes the water-cooled machine being arranged on vehicle chassis, and the water-cooled machine includes motor housing and turns
The shaft being assemblied in motor housing is moved, is provided with rotor in the shaft, the rotor includes being fixed on motor housing
Cyclic annular fixed part and with the rotating part that shaft rotates, is provided on the rotating part and inserts for cyclic annular fixed part
Annular groove, it is described ring-type fixed part and annular groove each side clearance cooperate, it is described ring-type fixed part wall in be provided with confession
The rotor cooling duct of coolant liquid circulation, the inlet and outlet of the rotor cooling duct are arranged at solid with cyclic annular fixed part
Surely the corresponding position of the motor housing connected.
The utility model has the advantages that the rotor for cooling down rotor is cold by the way that rotor is arranged to rotating part and cyclic annular fixed part
But the inside of cyclic annular fixed part is arranged in channel, simplifies the arrangement of cooling duct, so that the whole knot of cooling motor
Structure is simpler, reduces the manufacturing cost of cooling motor.In addition, by the way that rotor cooling duct is arranged in cyclic annular fixed part
The static water cooling to rotor is realized, the sealing performance for enhancing rotor cooling duct by rotary seal structure is not needed, prolongs
The maintenance period for having grown water-cooled machine has effectively eliminated the internal temperature high point of water-cooled machine, has improved the fortune of water-cooled machine
Row reliability.
Further, the rotor cooling duct has multiple, each rotor cooling duct along cyclic annular fixed part circumferential direction
It is spaced apart.By quick in the heat energy that circumferentially the multiple rotor cooling ducts of setting generate each position of rotor
It disperses, improves the heat-sinking capability of cooling motor.
Further, each rotor cooling duct is a pair of two-by-two constitutes rotor cooling duct group, in the group of each rotor cooling duct
Two rotor cooling ducts pass through the communicating passage that is arranged in motor housing and be connected in series.Reduce rotor cooling duct
The quantity of inlet and outlet.
Further, it is additionally provided in the motor housing for the cooling stator being fixed on motor housing inner sidewall
Shell cooling duct.Realize the cooling to stator.
Further, the shell cooling duct is identical as the number of rotor cooling duct, each shell cooling duct difference
It is connected in series with corresponding rotor cooling duct.Reduce the inlet and outlet of shell cooling duct and rotor cooling duct
Quantity simplifies the arrangement form of cooling duct.
Further, before the motor housing includes cylindrical case and is arranged at the port of cylindrical case rear and front end
End cap and rear end cap, the ring-type fixed part are fixed on rear end cap, shell cooling duct setting in cylindrical case and
In rear end cap.By facilitating the processing to shell cooling duct for motor housing split settings.
Further, each shell cooling duct constituted with corresponding concatenated rotor cooling duct respectively one it is complete cold
The import in but channel, each cooling duct is converged by external pipe and forms a total liquid inlet port in the external of water-cooled machine,
Converged by external pipe and form a total liquid outlet in the external of water-cooled machine in the outlet of each cooling duct.Liquid inlet port and
The setting of liquid outlet facilitates injection and recycling to coolant liquid, can infusing to multiple cooling ducts by liquid injecting mouth
Liquid is recycled by the coolant liquid that liquid outlet can flow out multiple cooling ducts.
Further, the cyclic annular fixed part is fixed on rear end cap by threaded fastener, the ring-type fixed part
Point rear end face on be arranged at intervals with multiple install fixed threaded securing bores for threaded fastener along the circumferential direction.Screw thread is tight
Firmware is easy for installation and removal.
Further, water-cooled machine further includes the motor base that motor housing bottom is arranged in.Facilitate water-cooled machine
Installation and placement.
Detailed description of the invention
Fig. 1 is the sectional view of the embodiment of water-cooled machine of the invention；
Fig. 2 is revolved sectional view at A-A in Fig. 1；
In figure: 1- cylindrical case, 2- stator coil, the main air gap of 3-, 4- mouse cage conducting bar, the first additional air gap of 5-, 6- are cyclic annular
Rotor yoke, 7- motor base, 8- threaded securing bores, 9- rotor core, 10- shaft, the second additional air gap of 11-, 12- shell are cooling
Channel, 13- rotor cooling duct, 14- drive end bearing bracket, 15- rear end cap, the import of the cooling duct 16-, the outlet of the cooling duct 17-, 18-
Fore bearing, 19- rear bearing, 20- stator core.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The embodiment of water-cooled machine of the invention:
As shown in Fig. 1~2, water-cooled machine includes motor housing, and motor housing includes cylindrical case 1 and by cylindrical case
The drive end bearing bracket 14 and rear end cap 15 that 1 rear and front end port is blocked are fixed with stator on the inner sidewall of cylindrical case 1, fixed
Attached bag includes stator core 20 and is wrapped in the stator coil 2 in the outside of stator core 20, the structure of stator with it is in the prior art
Structure is identical.The inner rotation of water-cooled machine is equipped with shaft 10, and the rear end of shaft 10 is (i.e. towards rear end cap 15 in the present embodiment
One end) rolling assembling is on the medial surface of rear end cap 15, before the front end (i.e. towards one end of drive end bearing bracket 14) of shaft 10 passes through
End cap 14.In order to realize the rolling assembling of shaft 10, rear bearing 19, the rear end elastic conjunction of shaft 10 are fixed on rear end cap 15
In the inner ring of rear bearing 19；The through-hole being pierced by for 10 front end of shaft is provided on drive end bearing bracket 14, in shaft 10 and drive end bearing bracket 14
Through-hole hole wall between be fixed with fore bearing 18,10 front end elastic conjunction of shaft is in the inner ring of fore bearing 18.
Annular space between shaft 10 and stator is additionally provided with rotor, and the present embodiment transfer attached bag includes elastic conjunction in shaft 10
On rotor core 9 and the annular rotor yoke 6 that is fixed on rear end cap 15, rotor core 9 constitute rotor in the present embodiment
Rotating part, the turning annular part of rotor in annular rotor yoke piece cost implementation.Rotor core 9 is annular shape, shaft 10
It is interspersed in the inner hole of rotor core 9, rotor core 9 can be rotated with shaft 10.Ring is additionally provided on rotor core 9
It is wound on the outside of shaft 10 and for the annular groove inside the front end of annular rotor yoke 6 insertion rotor core 9, the notch of annular groove is towards rear end
Lid 15 is configured, the groove depth direction of annular groove and the axial extending direction each parallel to shaft 10 of annular rotor yoke 6.Ring-type turns
Each side clearance of sub- yoke 6 and annular groove cooperates, and this avoid the outer surfaces of annular rotor yoke 6 to contact with each inner wall of annular groove,
So as to avoid rotor core 9, there is a situation where frictional interferences with annular rotor yoke 6 in the course of rotation.The inner wall of annular groove point
For the internal groove side wall close to shaft 10, the external groove sidevall close to stator and connection slot bottom therebetween, annular rotor yoke 6 it is interior
Annular space between peripheral wall and the internal groove side wall of annular groove forms the second additional air gap 11, the periphery wall of annular rotor yoke 6 and annular groove it is outer
Annular space between cell wall forms the first additional air gap 5, the thickness of the first additional air gap 5 and the second additional air gap 11 in the present embodiment
(i.e. along the length of water-cooled machine radial direction) is 0.3mm.The rear end of cyclic annular rotor yoke 6 passes through threaded fastener in the present embodiment
It is fixed on rear end cap 15, threaded fastener is specially bolt, is provided between circumferentially waiting on the rear end face of annular rotor yoke 6
Every being provided with the through-hole passed through for bolt on six threaded securing bores 8 of arrangement, the corresponding position of rear end cap 15.Rotor further includes
The mouse cage conducting bar 4 of 9 peripheral side of rotor core is set, in the present embodiment mouse cage conducting bar 4 by the way of casting in bronze with rotor core 9
Casting together, is fabricated to die casting according to the size of mouse cage conducting bar first before casting, is then put into rotor core
In die casting, the copper product of melting is then cast into inside die casting and rotor core moulding by casting process of completing,
Finally pass through lathe to the mouse cage conducting bar and rotor core that are poured together to complete to finish.Mouse cage conducting bar 4 and stator iron
Annular space between the internal perisporium of core 20 forms main air gap 3, main air gap 3 with a thickness of 0.6mm in the present embodiment.
In order to realize the cooling to water-cooled machine, in cylindrical case 1, common in rear end cap 15 and in annular rotor yoke 6
It is provided with the cooling duct logical for cooling liquid stream, the cooled channel segments being provided in cylindrical case and rear end cap constitute this reality
The shell cooling duct applied, the cooled channel segments being arranged in annular rotor yoke wall constitute the rotor cooling duct of the present embodiment.
Have eight cooling ducts being spacedly distributed along the circumferential direction of water-cooled machine in the present embodiment, eight cooling ducts respectively with water cooling
Eight of motor are to extremely corresponding.Each cooling duct import 16 and each cooling duct outlet 17 are arranged at the outer of cylindrical case 1
On circumferential surface, each cooling duct import 16 and each cooling duct outlet 17 are alternately arranged at equal intervals along the circumferential of cylindrical case 1, i.e.,
(or two cooling ducts of arbitrary neighborhood of cooling duct outlet 17 are provided between two cooling duct imports 16 of arbitrary neighborhood
A cooling duct import 16 is provided between outlet 17).Each cooling duct includes two rotor cooling ducts and two
Shell cooling duct, it should be noted that rotor cooling duct is to be arranged in annular rotor yoke and before annular rotor yoke
Hold and form one section of channel in round-trip circuit between rear end, each rotor cooling duct along annular rotor yoke circumferential direction cloth at equal intervals
It sets.Two rotor cooling ducts in each cooling duct constitute the rotor cooling duct group in the present embodiment, rotor cooling duct
Two rotor cooling ducts in group are connected in series by the way that the communicating passage in motor housing (i.e. in rear end cap) is arranged, connection
Channel also belongs to a part of cooling duct, and communicating passage is one section of channel along the circumferentially extending arrangement of rear end cap.Two
Position is distinguished in the one of series connection with two rotor cooling ducts respectively of a shell cooling duct, two shell cooling ducts
Inlet side and outlet side in cooling duct.For convenience of description, below by cooling duct be divided into influent stream channel, go out circulation road and
Three parts of communicating passage between two rotor cooling ducts are connected to, influent stream channel and out circulation road include a shell
Cooling duct and a rotor cooling duct, the setting sagittal plane space pair of influent stream channel and out circulation road about shaft 10
Claim, setting sagittal plane is pair between the cooling duct outlet 17 of arbitrary neighborhood and cooling duct import 16 in the present embodiment
Title face.
It should be noted that the cooling duct in the present embodiment in cylindrical case, rear end cap and rotor yoke can use
The mode of Sha Mo casting is processed, and is fabricated to first according to the size of cylindrical case, rear end cap and rotor yoke mating
Husky mould, then the potting syrup of melting is cast into corresponding husky mould, finally using lathe to the cylindrical case of moulding by casting,
Rear end cap and rotor yoke are finished.
In the present embodiment, coolant liquid is injected in each cooling duct simultaneously for convenience, each cooling duct import 16 connects
It is connected to external pipe, external pipe converges at the same liquid inlet port, can be simultaneously to each cooling duct by this liquid inlet port
Middle injection coolant liquid；Likewise, each cooling duct outlet 17 is also respectively connected with external pipe, it is outer at each cooling duct outlet 17
Adapter tube road also converges at the same liquid outlet, can be carried out simultaneously to the coolant liquid of cooling duct outflow by this liquid outlet
Recycling.
In the present embodiment, in order to enable at the interface of cylindrical case 1 and rear end cap 15 (i.e. the rear end face of motor housing with
The joint place of 15 medial surface of rear end cap), at the interface of rear end cap 15 and annular rotor yoke 6 (i.e. the medial surface of rear end cap 15 with
The joint place of the rear end face of annular rotor yoke 6) there is preferable sealing performance, each interface applies when being in fitting splicing
It is wiped with waterproof gasket cement.
In the present embodiment, the placement and fixation to water-cooled machine for convenience, the bottom of water-cooled machine is further fixed on motor
Pedestal 7, motor base 7 are two blocks of L-type plates being arranged symmetrically.
In addition, it should be noted that, the magnetic loop of the water-cooled machine of the present embodiment are as follows: the pole stator core N → main air gap 3 →
The pole rotor core N → the first additional air gap → pole annular rotor yoke N → additional gas of the second additional air gap → rotor core → the second
Gap → the pole annular rotor yoke S → first additional air gap → pole the rotor core S → pole main air gap 3 → stator core S.Wherein pass through tune
The thickness for saving the first additional air gap and the second additional air gap can effectively change the magnetic resistance of magnetic loop, thus to water-cooled machine
Weak magnetic operating point is adjusted, and the thickness of the first additional air gap 5 and the second additional air gap 11 can be according to water cooling in actual production
Magnetic flux needed for motor and specified magnetomotive force are determined.
The water-cooled machine of the present embodiment injects coolant liquid, each cooling into each cooling duct when in use, by liquid injecting mouth
Coolant liquid in channel flow to influent stream channel (followed by the shell cooling duct in motor housing when flowing to influent stream channel first
12, the rotor cooling duct 13 in annular rotor yoke 6), then flow out and flow in communicating passage from influent stream channel, then from
It flows out and is flow to out in circulation road in communicating passage and (is flow to out cooling followed by the rotor in annular rotor yoke 6 when circulation road
Shell cooling duct 12 in channel 13, motor housing), it finally flows out and is converged into from liquid outlet from the outlet of each cooling duct
It carries out centralized recovery or recycles again.
In other embodiments: shell cooling duct and rotor cooling duct can be provided separately, each other without
Serial communication is provided with the inlet and outlet of shell cooling duct on motor housing, it is cooling that rotor is additionally provided on motor housing
The inlet and outlet in channel.
In other embodiments: going out to be not provided with communicating passage between circulation road and influent stream channel, be provided on motor housing
The import of circulation road out is also equipped with the outlet in influent stream channel on motor housing.
In other embodiments: the annular groove on rotor core can be step-like inner hole, and step-like inner hole includes large diameter hole
And diameter holes, diameter holes are used to be used to intert annular rotor yoke, the inner hole wall of annular rotor yoke with shaft elastic conjunction, major diameter section
The second additional air gap is formed between shaft.
In other embodiments: the number of cooling duct can be adjusted the number of pole according in water-cooled machine.
In other embodiments: cooling duct import and cooling duct outlet can be set on drive end bearing bracket.
In other embodiments: annular rotor yoke can be wholely set with rear end cap.
The embodiment of electric car of the invention: electric car includes vehicle chassis, and water cooling electricity is provided on vehicle chassis
Machine, the specific structure of water-cooled machine is identical as the specific structure in the embodiment of above-mentioned water-cooled machine, and details are not described herein again.
Claims (10)
1. water-cooled machine, the shaft including motor housing and rolling assembling in motor housing is provided in the shaft and turns
Son, it is characterised in that: the rotor includes the cyclic annular fixed part being fixed on motor housing and turns with shaft rotation
Dynamic part, is provided with the annular groove for the inserting of cyclic annular fixed part on the rotating part, the ring-type fixed part and annular groove
The cooperation of each side clearance, is provided with the rotor cooling duct logical for cooling liquid stream in the wall of the ring-type fixed part, and described turn
The inlet and outlet of sub- cooling duct is arranged at the corresponding position for the motor housing being fixedly connected with cyclic annular fixed part.
2. water-cooled machine according to claim 1, it is characterised in that: the rotor cooling duct has multiple, and each rotor is cold
But channel along cyclic annular fixed part circumferentially-spaced distribution.
3. water-cooled machine according to claim 2, it is characterised in that: a pair of of composition rotor is cold two-by-two for each rotor cooling duct
But channel group, two rotor cooling ducts in the group of each rotor cooling duct pass through the communicating passage string being arranged in motor housing
Connection connection.
4. water-cooled machine according to claim 1 or 2 or 3, it is characterised in that: be additionally provided with and be used in the motor housing
The shell cooling duct of the cooling stator being fixed on motor housing inner sidewall.
5. water-cooled machine according to claim 4, it is characterised in that: the shell cooling duct and rotor cooling duct
Number is identical, and each shell cooling duct is connected in series with corresponding rotor cooling duct respectively.
6. water-cooled machine according to claim 5, it is characterised in that: the motor housing includes cylindrical case and setting
Drive end bearing bracket and rear end cap at the port of cylindrical case rear and front end, the ring-type fixed part is fixed on rear end cap, described
Shell cooling duct is arranged in cylindrical case and rear end cap.
7. water-cooled machine according to claim 6, it is characterised in that: each shell cooling duct respectively with corresponding concatenated turn
Sub- cooling duct constitutes a complete cooling duct, and the import of each cooling duct is converged by external pipe and in water cooling electricity
The external of machine forms a total liquid inlet port, and the outlet of each cooling duct is converged by external pipe and in the outside of water-cooled machine
Form a total liquid outlet.
8. according to water-cooled machine described in claim 5 or 6 or 7, it is characterised in that: the ring-type fixed part is tight by screw thread
Firmware is fixed on rear end cap, is arranged at intervals with along the circumferential direction on the rear end face of the ring-type fixed part multiple for screw thread
Fastener installs fixed threaded securing bores.
9. water-cooled machine according to claim 1 or 2 or 3, it is characterised in that: water-cooled machine further includes being arranged outside motor
The motor base of shell bottom.
10. electric car, including the water-cooled machine being arranged on vehicle chassis, it is characterised in that: the water-cooled machine is using such as
Water-cooled machine described in any one of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210832.0A CN109301960A (en) | 2018-10-17 | 2018-10-17 | A kind of electric car and water-cooled machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210832.0A CN109301960A (en) | 2018-10-17 | 2018-10-17 | A kind of electric car and water-cooled machine |
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| CN109301960A true CN109301960A (en) | 2019-02-01 |
Family
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| CN201811210832.0A Pending CN109301960A (en) | 2018-10-17 | 2018-10-17 | A kind of electric car and water-cooled machine |
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| CN110430725A (en) * | 2019-07-23 | 2019-11-08 | 扬州晶胜源机电有限公司 | A kind of electric vehicle controller to prolong the service life |
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