CN117335609B - Asynchronous motor for electric automobile - Google Patents
Asynchronous motor for electric automobile Download PDFInfo
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- CN117335609B CN117335609B CN202311522802.4A CN202311522802A CN117335609B CN 117335609 B CN117335609 B CN 117335609B CN 202311522802 A CN202311522802 A CN 202311522802A CN 117335609 B CN117335609 B CN 117335609B
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- ring
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- stator
- transmission shaft
- asynchronous motor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- 238000004804 winding Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 59
- 239000012530 fluid Substances 0.000 claims description 29
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 241000883990 Flabellum Species 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 16
- 239000002826 coolant Substances 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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- 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
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary 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
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
-
- 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
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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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
Abstract
The invention relates to the technical field of asynchronous motors, and discloses an asynchronous motor for an electric automobile, which comprises a shell, a stator and a rotating shaft fixedly arranged in a rotor, wherein a plurality of winding parts are arranged on the inner annular surface of the stator, the surfaces of the winding parts are used for winding a winding group, and a first channel is formed in the winding parts; the surface of the shell is provided with a cooling liquid tank, cooling liquid is added into the cooling liquid tank, an output pipe of the cooling liquid tank can be communicated with the first channel, and cooling liquid in the cooling liquid tank can enter the first channel in the stator; this asynchronous motor for electric automobile through the combined design of water conservancy diversion subassembly and stator internal passage one, honeycomb duct, input tube and back flow, can make the coolant liquid in the coolant tank circulate in the casing inside to this liquid cooling heat dissipation that realizes the casing inside is handled, is favorable to improving the radiating effect of casing inside.
Description
Technical Field
The invention relates to the technical field of asynchronous motors, in particular to an asynchronous motor for an electric automobile.
Background
An asynchronous motor is also called an induction motor, and is an alternating current motor which generates electromagnetic rotation resistance through interaction of a rotating magnetic field and induction current of a rotor winding, so that electric energy is converted into mechanical energy. In electric vehicles, an asynchronous motor is often used as a driving device for a rotating structural member of the electric vehicle, such as an asynchronous motor used as a driving source of a power transmission system.
The traditional asynchronous motor is provided with fan blades at the tail end of the motor, the fan blades are driven to rotate by utilizing the rotation of the asynchronous motor, the air cooling heat dissipation of the asynchronous motor is realized by the rotation of the fan blades, the heat dissipation mode can only reduce the surface temperature of the asynchronous motor, the heat dissipation effect inside the asynchronous motor is poor, the operation energy efficiency of the asynchronous motor can be influenced when the internal temperature of the asynchronous motor is too high, in addition, when the internal temperature of the asynchronous motor is lower, the asynchronous motor drives the fan blades to rotate, and the energy consumption of the asynchronous motor can be increased.
Disclosure of Invention
In order to solve the problems that the heat dissipation mode of the traditional asynchronous motor can only reduce the temperature of the surface of the asynchronous motor, the heat dissipation effect in the asynchronous motor is poor, and in addition, when the temperature in the asynchronous motor is low, the asynchronous motor drives the fan blades to rotate, so that the energy consumption of the asynchronous motor can be increased, the invention is realized by the following technical scheme: the asynchronous motor for the electric automobile comprises a shell, a stator and a rotating shaft fixedly arranged in a rotor, wherein the rotating shaft is rotatably arranged in the shell through a bearing, radiating fins are arranged on the outer surface of the shell, a plurality of winding parts are arranged on the inner annular surface of the stator, the surfaces of the winding parts are used for winding a winding group, and a first channel is formed in the winding part;
the surface of the shell is provided with a cooling liquid tank, cooling liquid is added into the cooling liquid tank, an output pipe of the cooling liquid tank can be communicated with the first channel, and cooling liquid in the cooling liquid tank can enter the first channel in the stator;
the inside of casing is equipped with the water conservancy diversion subassembly that is used for driving fluid to flow, passageway one can be through the honeycomb duct with fluid guide in the water conservancy diversion subassembly, water conservancy diversion subassembly drive fluid flows back to through the back flow in the cooling liquid case, utilizes the water conservancy diversion subassembly and passageway one, honeycomb duct and back flow combination, can make the coolant liquid circulate and flow to this inside liquid circulation cooling of realization asynchronous machine.
Further, the flow guide assembly includes:
the transmission shaft is rotatably arranged in the shell;
the guide ring is rotatably arranged on the surface of the transmission shaft and fixedly arranged in the shell, the guide ring is U-shaped, a plurality of through holes are formed in the bottom plate of the guide ring, the guide pipe is communicated with the inside of the guide ring through the through holes, and fluid enters the guide ring through the through holes;
the lantern ring is positioned in the guide ring and fixedly connected with the transmission shaft, and when the transmission shaft rotates, the lantern ring is driven to rotate together;
the outer ring of the lantern ring is axially provided with a plurality of blades, when the lantern ring rotates, the blades are driven to rotate together, the bottom surfaces of the blades are in sliding contact with the bottom surface inside the guide ring, the sections of the blades are arched, the upper surfaces of the blades are transition curved surfaces, the annular surface of the lantern ring is provided with a plurality of openings I, and the openings I correspond to the blades one by one;
the flow directing assembly further comprises:
the flow guide seat is fixedly connected with the flow guide ring, a flow blocking block is arranged in the flow guide seat close to one side of the flow guide ring in a sealing sliding manner, a compression spring is arranged between the flow blocking block and the flow guide seat, the flow blocking block is matched with the transition curved surface of the blade, the flow blocking block is always contacted with the bottom surface in the flow guide ring or the transition curved surface on the upper surface of the blade under the action of the compression spring, the top surface of the blade is in sliding contact with the surface of the flow guide seat, when the blade rotates, fluid entering the flow guide ring is driven to move, and when the blade is close to the flow blocking block to rotate, the flow blocking block is matched with the blade to squeeze the fluid;
the inner ring is fixedly arranged on the surface of the flow guide seat, which is close to one side of the flow guide ring, the inner ring is in rotary contact with the inner annular surface of the lantern ring, a plurality of openings II are formed in the annular surface of the inner ring, when the lantern ring rotates, the openings I can be overlapped with the openings II, when the openings I are overlapped with the openings II, the corresponding blades cover the through holes corresponding to the surface of the flow guide ring, and when the openings I are overlapped with the openings II, fluid extruded by the flow baffle blocks and the blades enters the inner ring through the openings I and the openings II;
and one end of the input pipe is communicated with the interior of the inner ring, the other end of the input pipe is communicated with the return pipe, fluid entering the inner ring enters the return pipe through the input pipe, and the fluid is re-entered into the cooling liquid tank through the return pipe.
Further, be equipped with the variable speed subassembly between the pivot with the transmission shaft, the pivot is passed through the variable speed subassembly drive transmission shaft rotates, the variable speed subassembly includes:
the telescopic rod is an electromagnetic telescopic rod or a hydraulic telescopic rod and is slidably arranged at one end of the rotating shaft, which is close to the transmission shaft, a friction wheel is fixedly arranged on the surface of the telescopic rod, and the telescopic rod can drive the friction wheel to move;
the conical cylinder is rotatably arranged in the shell, a conical curved surface of the conical cylinder is in friction contact with the friction wheel and tangent to the surface of the friction wheel, and when the friction wheel rotates, the conical cylinder is driven to rotate together by friction acting force;
the utility model discloses a telescopic link, including the taper section of thick bamboo, the taper section of thick bamboo is kept away from the universal joint is installed to one end of telescopic link, keep away from in the universal joint taper section of thick bamboo one end the axostylus axostyle with pass through drive gear group transmission connection between the transmission shaft, drive gear group comprises two engaged with gears, and one gear is installed on the axostylus axostyle of universal joint, and another gear is installed on the transmission shaft, and when taper section of thick bamboo rotated, drove universal joint and rotated together, and universal joint passes through drive gear group and drives the transmission shaft and rotate.
The design of variable speed subassembly can be according to the inside temperature of asynchronous machine's height, the rotational speed of adjustment transmission shaft, and then adjust the speed that the water conservancy diversion subassembly drive fluid flowed, when the inside temperature of asynchronous machine is lower does not need the heat dissipation to handle, can make friction pulley and cone break away from, water conservancy diversion subassembly is inoperative this moment, thereby can reduce the rotation resistance of pivot, and then improve asynchronous machine's energy efficiency, the design of variable speed subassembly simultaneously, can make water conservancy diversion subassembly slow stop operation or slow start operation, avoid water conservancy diversion subassembly to stop or the pivot is obstructed in the twinkling of an eye, be favorable to avoiding water conservancy diversion subassembly or pivot to damage.
Furthermore, a plurality of conical barrels are arranged in the speed changing assembly, the installation directions of two adjacent conical barrels on the axis are opposite, meanwhile, the adjacent conical curved surfaces of the two adjacent conical barrels are in friction tangent transmission through a friction transmission wheel, and the friction transmission wheel can move tangentially along the conical curved surfaces of the conical barrels;
the conical curved surface of one conical cylinder in the plurality of conical cylinders is in friction tangency with the friction wheel, one end of the conical cylinder on the other side is provided with a universal coupling, and the range of the rotation speed ratio between the rotating shaft and the transmission shaft can be changed due to the design of the plurality of conical cylinders.
Furthermore, the inside of water conservancy diversion ring and water conservancy diversion seat is equipped with the drive shaft, the drive shaft with transmission shaft fixed connection, the transmission shaft extends the outside one end fixed mounting of water conservancy diversion seat has the flabellum, and when the transmission shaft rotated, the drive shaft can drive the flabellum through the drive shaft and rotate, utilizes the rotation of flabellum to carry out forced air cooling heat dissipation.
Further, a plurality of second channels and a plurality of third channels are formed in the stator;
the winding parts inside the stator are in a group, a plurality of the winding parts in the same group are communicated with the first channel and the second channel in the same group sequentially through the third channel, one end of the second channel, which is far away from the first channel, is communicated with the flow guide pipe, and fluid can flow in the first channels in the same group sequentially and then enter the flow guide pipe through the second channel.
Furthermore, sealing covers are arranged at two ends of the stator and used for dustproof and waterproof protection of the stator and the rotor, a plurality of connecting pipes are fixedly arranged in the sealing covers in a sealing manner, and the connecting pipes are communicated with a first channel far away from a second channel in the same group of a plurality of winding parts;
and a plurality of connecting pipes are simultaneously communicated with the output pipe.
Compared with the prior art, the invention has the following beneficial effects:
1. this asynchronous motor for electric automobile through the combined design of water conservancy diversion subassembly and stator internal passage one, honeycomb duct, input tube and back flow, can make the coolant liquid in the coolant tank circulate in the casing inside to this liquid cooling heat dissipation that realizes inside the casing is handled, is favorable to improving the radiating effect inside the casing, and water conservancy diversion ring and water conservancy diversion seat and lantern ring, blade and inner ring's combined design in the water conservancy diversion subassembly simultaneously can carry out synchronous drive to the fluid in the honeycomb duct of a plurality of tributaries in the axis direction of rotation and carry out the synchronous drive and carry, in order to realize the continuous flow of fluid in a plurality of fluid passages in the stator inside, the stator inside fluid circulation flow is effectual.
2. This asynchronous motor for electric automobile through the combined design between telescopic link and friction pulley and cone, universal joint and the drive gear group between pivot and the transmission shaft, can change the speed ratio between pivot and the transmission shaft to realize the slow operation of stopping of water conservancy diversion subassembly or slowly begin the operation, be favorable to protecting pivot and water conservancy diversion subassembly, can make water conservancy diversion subassembly stop the operation when need not the heat dissipation simultaneously, be favorable to reducing the rotation resistance of pivot, thereby reduce asynchronous motor's energy consumption, and then improve asynchronous motor's energy efficiency.
Drawings
FIG. 1 is a perspective view of the overall structure of a motor according to the present invention;
FIG. 2 is a front view of the external structure of the motor of the present invention;
FIG. 3 is a perspective view of the internal structure of the motor of the present invention;
FIG. 4 is a perspective view of a stator structure according to the present invention;
FIG. 5 is a schematic view of the internal cross-sectional structure of the stator of the present invention;
FIG. 6 is a schematic view of the structure of the transmission assembly, the drive shaft, and the deflector assembly of the present invention;
FIG. 7 is a perspective view of the internal structure of the deflector assembly of the present invention;
FIG. 8 is a perspective view of the inner vane distribution structure of the guide ring of the present invention;
FIG. 9 is a perspective view of the distribution structure of the blades on the surface of the collar of the present invention;
FIG. 10 is a schematic diagram of a flow baffle block distribution structure on the surface of the flow guide seat according to the present invention;
FIG. 11 is a schematic view of the internal structure of the baffle seat according to the present invention;
FIG. 12 is a schematic view of a plurality of cone assemblies according to the present invention.
In the figure: 1. a housing; 2. a stator; 21. a winding section; 211. a first channel; 22. a second channel; 23. a third channel; 3. sealing cover; 31. a connecting pipe; 4. a rotating shaft; 41. a telescopic rod; 42. a friction wheel; 5. a conical cylinder; 51. a universal coupling; 52. a drive gear set; 6. a transmission shaft; 7. a guide ring; 71. a flow guiding pipe; 8. a collar; 81. a blade; 82. an opening I; 9. a diversion seat; 91. a flow blocking block; 10. an inner ring; 101. an opening II; 11. an input tube; 111. a return pipe; 12. a cooling liquid tank; 13. an output pipe; 14. a drive shaft; 15. and (3) a fan blade.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the high-efficiency asynchronous motor for the electric automobile is as follows:
referring to fig. 1-12, an asynchronous motor for an electric vehicle includes a housing 1, a stator 2, and a rotating shaft 4 fixedly mounted in a rotor, wherein the rotating shaft 4 is rotatably mounted in the housing 1 through a bearing, a heat dissipation fin is mounted on an outer surface of the housing 1, a plurality of winding portions 21 are disposed on an inner annular surface of the stator 2, the surface of the winding portions 21 is used for winding a coil, and a first channel 211 is formed in the winding portions 21.
The surface mounting of casing 1 has coolant tank 12, and coolant tank 12's inside has added coolant, and coolant tank 12's internally mounted has heat exchange module, and heat exchange module is used for carrying out cooling treatment to the coolant that has absorbed the heat, and coolant tank 12's output tube 13 can communicate with passageway one 211, and coolant in coolant tank 12 can enter into the inside passageway one 211 of stator 2.
The inside of the casing 1 is provided with a flow guide component for driving fluid to flow, the first channel 211 can guide the fluid into the flow guide component through the flow guide pipe 71, the flow guide component drives the fluid to flow back into the cooling liquid tank 12 through the return pipe 111, and the cooling liquid can be circulated by utilizing the combination of the flow guide component and the first channel 211, the flow guide pipe 71 and the return pipe 111, so that the liquid circulation cooling in the asynchronous motor is realized.
A plurality of second channels 22 and a plurality of third channels 23 are formed in the stator 2; the plurality of winding parts 21 in the stator 2 are in a group, the first channels 211 in the plurality of winding parts 21 in the same group are communicated with the first and the last of the corresponding second channels 22 sequentially through the third channels 23, one end of the second channel 22 far away from the first channels 211 is communicated with the flow guide 71, and fluid can flow in the plurality of first channels 211 in the same group sequentially and then enter the flow guide 71 through the second channels 22.
Sealing covers 3 are arranged at two ends of the stator 2 and used for dustproof and waterproof protection of the stator 2 and the rotor, a plurality of connecting pipes 31 are fixedly arranged in the sealing covers 3 in a sealing manner, and the connecting pipes 31 are communicated with a first channel 211 which is far away from a second channel 22 side in a plurality of winding parts 21 in the same group; the plurality of connection pipes 31 communicate with the output pipe 13 at the same time.
The flow guiding component comprises a transmission shaft 6, a flow guiding ring 7, a lantern ring 8, a flow guiding seat 9, an inner ring 10 and an input pipe 11; the transmission shaft 6 is rotatably arranged in the shell 1; the guide ring 7 is rotatably arranged on the surface of the transmission shaft 6 and fixedly arranged in the casing 1, the guide ring 7 is U-shaped, a plurality of through holes are formed in the bottom plate of the guide ring 7, the guide pipe 71 is communicated with the inside of the guide ring 7 through the through holes, and fluid enters the guide ring 7 through the through holes.
The lantern ring 8 is positioned in the guide ring 7, the lantern ring 8 is fixedly connected with the transmission shaft 6, and when the transmission shaft 6 rotates, the lantern ring 8 is driven to rotate together; the outer ring axial direction of the lantern ring 8 is distributed with a plurality of blades 81, when the lantern ring 8 rotates, the blades 81 are driven to rotate together, the bottom surface of the blades 81 is in sliding contact with the bottom surface inside the guide ring 7, the section of the blades 81 is arched, the upper surface is a transition curved surface, a plurality of first openings 82 are formed in the annular surface of the lantern ring 8, and the first openings 82 are in one-to-one correspondence with the blades 81.
The guide seat 9 is fixedly connected with the guide ring 7, the baffle block 91 is arranged in the guide seat 9, which is close to one side of the guide ring 7, in a sealing sliding manner, a compression spring is arranged between the baffle block 91 and the guide seat 9, the baffle block 91 is matched with the transition curved surface of the blade 81, under the action of the compression spring, the baffle block 91 is always contacted with the bottom surface of the inside of the guide ring 7 or the transition curved surface of the upper surface of the blade 81, the top surface of the blade 81 is in sliding contact with the surface of the guide seat 9, when the blade 81 rotates, fluid entering the inside of the guide ring 7 is driven to move, and when the blade 81 is close to the baffle block 91 to rotate, the baffle block 91 is matched with the blade 81 to extrude the fluid.
The inner ring 10 is fixedly arranged on the surface of the guide seat 9, which is close to one side of the guide ring 7, the inner ring 10 is in rotary contact with the inner ring surface of the lantern ring 8, a plurality of openings II 101 are formed in the ring surface of the inner ring 10, when the lantern ring 8 rotates, the openings I82 can be overlapped with the openings II 101, when the openings I82 are overlapped with the openings II 101, the corresponding blades 81 cover the through holes corresponding to the surface of the guide ring 7, and when the openings I82 are overlapped with the openings II 101, fluid extruded by the flow blocking blocks 91 and the blades 81 enters the inner ring 10 through the openings I82 and the openings II 101.
The input pipe 11 communicates at one end with the interior of the inner ring 10 and at the other end with the return pipe 111, and the fluid entering the inner ring 10 enters the return pipe 111 through the input pipe 11, and the fluid is re-entered into the coolant tank 12 through the return pipe 111.
A speed changing assembly is arranged between the rotating shaft 4 and the transmission shaft 6, the rotating shaft 4 drives the transmission shaft 6 to rotate through the speed changing assembly, and the speed changing assembly comprises a telescopic rod 41 and a conical barrel 5; the telescopic rod 41 is an electromagnetic telescopic rod or a hydraulic telescopic rod, and is slidably arranged at one end of the rotating shaft 4 close to the transmission shaft 6, the friction wheel 42 is fixedly arranged on the surface of the telescopic rod 41, and the telescopic rod 41 can drive the friction wheel 42 to move.
The cone 5 is rotatably installed in the casing 1, the conical curved surface of the cone 5 is in friction contact with the friction wheel 42 and tangent to the surface of the friction wheel 42, and when the friction wheel 42 rotates, the cone 5 is driven to rotate together by friction force.
The universal coupling 51 is installed to the one end that cone section of thick bamboo 5 kept away from telescopic link 41, is connected through the drive gear train 52 transmission between the axostylus axostyle that the cone section of thick bamboo 5 was kept away from one end in the universal coupling 51 and the transmission shaft 6, and drive gear train 52 comprises two engaged with gears, and one gear is installed on the axostylus axostyle of universal coupling 51, and another gear is installed on the transmission shaft 6, and when cone section of thick bamboo 5 rotated, it rotates together to drive universal coupling 51, and universal coupling 51 drives transmission shaft 6 through drive gear train 52 and rotates.
The design of variable speed subassembly can be according to the inside temperature of asynchronous machine's height, the rotational speed of adjustment transmission shaft 6, and then adjust the speed that the water conservancy diversion subassembly drive fluid flowed, when the inside temperature of asynchronous machine is lower does not need the heat dissipation to be handled, can make friction wheel 42 break away from with cone 5, water conservancy diversion subassembly is inoperative this moment, thereby can reduce the rotation resistance of pivot 4, and then improve asynchronous machine's energy efficiency, the design of variable speed subassembly simultaneously, can make water conservancy diversion subassembly slow stop operation or slow start operation, avoid water conservancy diversion subassembly to stop or pivot 4 is obstructed in the twinkling of an eye, be favorable to avoiding water conservancy diversion subassembly or pivot 4 to damage.
The speed change assembly is provided with a plurality of cone barrels 5, the installation directions of two adjacent cone barrels 5 on the axis are opposite, meanwhile, the adjacent cone curved surfaces of the two adjacent cone barrels 5 are in friction tangent transmission through the friction driving wheel, the friction driving wheel can move tangentially along the cone curved surfaces of the cone barrels 5, the cone curved surface of one cone barrel 5 in the plurality of cone barrels 5 is in friction tangency with the friction wheel 42, one end of the cone barrel 5 on the other side is provided with the universal coupling 51, and the design of the plurality of cone barrels 5 can change the range of the rotation speed ratio between the rotating shaft 4 and the transmission shaft 6.
The inside of water conservancy diversion ring 7 and water conservancy diversion seat 9 is equipped with drive shaft 14, drive shaft 14 and transmission shaft 6 fixed connection, and the outside one end fixed mounting of transmission shaft 6 extension water conservancy diversion seat 9 has flabellum 15, and when transmission shaft 6 rotated, can drive flabellum 15 through drive shaft 14 and rotate, utilizes the rotation of flabellum 15 to carry out the forced air cooling heat dissipation.
Asynchronous motor theory of operation:
the asynchronous motor is arranged in the electric automobile, and is used as driving equipment of the electric automobile, when the asynchronous motor is started, under the matching effect of the stator 2 and the rotor, the rotating shaft 4 starts to rotate, and the output end of the rotating shaft 4 drives structural components which need to rotate in the electric automobile to rotate.
The temperature sensor is arranged in the asynchronous motor, the temperature sensor is used for detecting the temperature in the casing 1, when the temperature in the casing 1 reaches a set value requiring heat dissipation, the friction wheel 42 is driven to move by the telescopic rod 41, so that the friction wheel 42 is in friction contact with the surface of the conical cylinder 5, the friction wheel 42 drives the conical cylinder 5 to rotate together, the transmission shaft 6 is driven to rotate together when the conical cylinder 5 rotates, the position of the friction wheel 42 is regulated by the telescopic rod 41, and the rotation speed ratio between the rotating shaft 4 and the transmission shaft 6 can be regulated.
When the transmission shaft 6 rotates, the lantern ring 8 inside the guide ring 7 is driven to rotate, the lantern ring 8 drives the blades 81 to rotate, the blades 81 intermittently contact with the flow blocking blocks 91 and are matched with the flow blocking blocks 91, the space between the blades 81 and the flow blocking blocks 91 is extruded, negative pressure is generated inside the guide ring 7, at this time, cooling liquid inside the cooling liquid tank 12 can enter the first channel 211 inside the stator 2 through the output pipe 13 and the connecting pipe 31, and when the cooling liquid flows in the first channel 211, the second channel 22 and the third channel 23, heat inside the stator 2 can be absorbed, so that liquid cooling inside the casing 1 is realized.
The cooling liquid after absorbing heat enters the flow guide assembly through the flow guide pipe 71, the cooling liquid enters the input pipe 11 through the flow guide assembly under the circulation matching effect of the blades 81 and the flow blocking blocks 91, and flows back to the cooling liquid tank 12 through the return pipe 111, and after the cooling liquid absorbing heat enters the cooling liquid tank 12, the heat exchange module inside the cooling liquid tank 12 performs heat exchange cooling treatment on the cooling liquid.
The liquid cooling heat dissipation treatment inside the asynchronous motor can be realized through the circulation, when the heat dissipation treatment is not needed inside the asynchronous motor, the friction wheel 42 is separated from the conical cylinder 5 by the telescopic rod 41, the transmission shaft 6 cannot rotate at the moment, the rotation resistance of the rotating shaft 4 can be reduced in the state, the energy consumption of the asynchronous motor can be reduced, and therefore the energy efficiency of the asynchronous motor is improved.
Claims (6)
1. The utility model provides an asynchronous motor for electric automobile, includes casing (1), stator (2) and fixed mounting in inside pivot (4) of rotor, the inboard anchor ring of stator (2) is provided with a plurality of winding portion (21), its characterized in that: a first channel (211) is formed in the winding part (21);
the surface of the shell (1) is provided with a cooling liquid tank (12), and an output pipe (13) of the cooling liquid tank (12) can be communicated with the first channel (211);
a diversion component for driving fluid to flow is arranged in the casing (1), the first channel (211) can guide fluid into the diversion component through a diversion pipe (71), and the diversion component drives the fluid to flow back into the cooling liquid tank (12) through a backflow pipe (111);
the flow guide assembly includes:
a transmission shaft (6) rotatably installed inside the casing (1);
the guide ring (7) is rotatably arranged on the surface of the transmission shaft (6) and fixedly arranged in the shell (1), the guide ring (7) is U-shaped, a plurality of through holes are formed in the bottom plate of the guide ring (7), and the guide pipe (71) is communicated with the inside of the guide ring (7) through the through holes;
the lantern ring (8) is positioned in the guide ring (7), and the lantern ring (8) is fixedly connected with the transmission shaft (6);
the outer ring of the lantern ring (8) is axially provided with a plurality of blades (81), the bottom surfaces of the blades (81) are in sliding contact with the bottom surface inside the guide ring (7), the cross section of each blade (81) is arched, the upper surface of each blade is a transition curved surface, the annular surface of the lantern ring (8) is provided with a plurality of openings I (82), and the openings I (82) are in one-to-one correspondence with the blades (81);
the flow directing assembly further comprises:
the guide seat (9) is fixedly connected with the guide ring (7), a flow blocking block (91) is arranged in the guide seat (9) close to one side of the guide ring (7) in a sealing sliding manner, a compression spring is arranged between the flow blocking block (91) and the guide seat (9), the flow blocking block (91) is matched with the transition curved surface of the blade (81), and the top surface of the blade (81) is in sliding contact with the surface of the guide seat (9);
the inner ring (10) is fixedly arranged on the surface of the guide seat (9) close to one side of the guide ring (7), the inner ring (10) is in rotary contact with the inner ring surface of the lantern ring (8), a plurality of openings II (101) are formed in the ring surface of the inner ring (10), when the lantern ring (8) rotates, the openings I (82) can be overlapped with the openings II (101), and when the openings I (82) are overlapped with the openings II (101), the corresponding blades (81) cover through holes corresponding to the surface of the guide ring (7);
an input pipe (11) having one end communicating with the interior of the inner ring (10) and the other end communicating with the return pipe (111).
2. The asynchronous motor for an electric vehicle according to claim 1, wherein: a speed change assembly is arranged between the rotating shaft (4) and the transmission shaft (6), the rotating shaft (4) drives the transmission shaft (6) to rotate through the speed change assembly, and the speed change assembly comprises:
the telescopic rod (41) is slidably arranged at one end, close to the transmission shaft (6), of the rotating shaft (4), and a friction wheel (42) is fixedly arranged on the surface of the telescopic rod (41);
the conical cylinder (5) is rotatably arranged in the shell (1), and the conical curved surface of the conical cylinder (5) is in friction contact with the friction wheel (42) and is tangential to the surface of the friction wheel (42);
the universal coupling (51) is installed to one end that cone section of thick bamboo (5) kept away from telescopic link (41), in universal coupling (51) keep away from the axostylus axostyle of cone section of thick bamboo (5) one end with pass through drive gear group (52) transmission connection between transmission shaft (6).
3. The asynchronous motor for an electric vehicle according to claim 2, characterized in that: a plurality of conical barrels (5) are arranged in the speed change assembly, the installation directions of two adjacent conical barrels (5) on the axis are opposite, meanwhile, the adjacent conical curved surfaces of the two adjacent conical barrels (5) are in friction tangent transmission through a friction transmission wheel, and the friction transmission wheel can move tangentially along the conical curved surfaces of the conical barrels (5);
the conical curved surface of one conical cylinder (5) in the plurality of conical cylinders (5) is in friction tangency with the friction wheel (42), and one end of the conical cylinder (5) at the other side is provided with a universal coupling (51).
4. An asynchronous motor for electric vehicles according to any one of claims 1-3, characterized in that: the inside of water conservancy diversion ring (7) and water conservancy diversion seat (9) is equipped with drive shaft (14), drive shaft (14) with transmission shaft (6) fixed connection, transmission shaft (6) extend outside one end fixed mounting of water conservancy diversion seat (9) has flabellum (15).
5. The asynchronous motor for an electric vehicle according to claim 1 or 2, characterized in that: a plurality of second channels (22) and a plurality of third channels (23) are formed in the stator (2);
the stator (2) is characterized in that a plurality of winding parts (21) in the stator (2) are in a group, a plurality of first channels (211) in the winding parts (21) in the same group are communicated with the corresponding second channels (22) from beginning to end sequentially through the third channels (23), and one end, away from the first channels (211), of the second channels (22) is communicated with the guide pipe (71).
6. The asynchronous motor for an electric vehicle according to claim 5, wherein: sealing covers (3) are arranged at two ends of the stator (2), a plurality of connecting pipes (31) are fixedly arranged in the sealing covers (3) in a sealing manner, and the connecting pipes (31) are communicated with a first channel (211) far away from a second channel (22) side in the same group of a plurality of winding parts (21);
a plurality of the connecting pipes (31) are simultaneously communicated with the output pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311522802.4A CN117335609B (en) | 2023-11-15 | 2023-11-15 | Asynchronous motor for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311522802.4A CN117335609B (en) | 2023-11-15 | 2023-11-15 | Asynchronous motor for electric automobile |
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| Publication Number | Publication Date |
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| CN117335609A CN117335609A (en) | 2024-01-02 |
| CN117335609B true CN117335609B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311522802.4A Active CN117335609B (en) | 2023-11-15 | 2023-11-15 | Asynchronous motor for electric automobile |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0026099A1 (en) * | 1979-09-25 | 1981-04-01 | Westinghouse Electric Corporation | Dynamoelectric machine with cryostable field winding |
| CN106208443A (en) * | 2016-08-30 | 2016-12-07 | 伊泽瑞尔(大连)科技有限公司 | A kind of high-energy-density magneto water-cooling system |
| CN113302822A (en) * | 2019-04-01 | 2021-08-24 | 宝马股份公司 | Cooling device for a stator of an electric machine, electric machine and motor vehicle |
| CN115102331A (en) * | 2022-08-24 | 2022-09-23 | 江苏南江减速机有限公司 | Liquid cooling motor |
| CN219535739U (en) * | 2023-02-20 | 2023-08-15 | 苏州时代新安能源科技有限公司 | Stator assembly and motor |
-
2023
- 2023-11-15 CN CN202311522802.4A patent/CN117335609B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0026099A1 (en) * | 1979-09-25 | 1981-04-01 | Westinghouse Electric Corporation | Dynamoelectric machine with cryostable field winding |
| CN106208443A (en) * | 2016-08-30 | 2016-12-07 | 伊泽瑞尔(大连)科技有限公司 | A kind of high-energy-density magneto water-cooling system |
| CN113302822A (en) * | 2019-04-01 | 2021-08-24 | 宝马股份公司 | Cooling device for a stator of an electric machine, electric machine and motor vehicle |
| CN115102331A (en) * | 2022-08-24 | 2022-09-23 | 江苏南江减速机有限公司 | Liquid cooling motor |
| CN219535739U (en) * | 2023-02-20 | 2023-08-15 | 苏州时代新安能源科技有限公司 | Stator assembly and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117335609A (en) | 2024-01-02 |
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