CN116915010A - Heat radiation structure for double-stator inner rotor axial flux hub motor - Google Patents
Heat radiation structure for double-stator inner rotor axial flux hub motor Download PDFInfo
- Publication number
- CN116915010A CN116915010A CN202310825047.0A CN202310825047A CN116915010A CN 116915010 A CN116915010 A CN 116915010A CN 202310825047 A CN202310825047 A CN 202310825047A CN 116915010 A CN116915010 A CN 116915010A
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- Prior art keywords
- rotor
- end cover
- stator
- cooling
- module
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- 230000005855 radiation Effects 0.000 title claims abstract description 24
- 230000004907 flux Effects 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 87
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000017525 heat dissipation Effects 0.000 claims abstract description 32
- 239000000110 cooling liquid Substances 0.000 claims abstract description 21
- 230000001788 irregular Effects 0.000 claims abstract description 6
- 230000009977 dual effect Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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
- 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
-
- 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 discloses a heat radiation structure for a double-stator inner rotor axial flux hub motor, and provides a specific feasible structural scheme for the heat radiation problem of the axial flux hub motor. The heat radiation structure mainly comprises an inner heat radiation module, an outer heat radiation module and a sealing module; the inner heat dissipation module is an oil cavity and a cooling liquid loop, the double stators and the rotor are matched with each other in a labyrinth sealing manner to form an inner layer of the oil cavity, the left end cover and the right end cover are matched with each other in a sealing manner to form an outer layer of the oil cavity, and cooling oil is circularly supplied in the oil cavity; the outer heat dissipation module is externally connected with wavy irregular heat dissipation fins through left and right end covers; the sealing module is formed by adopting labyrinth sealing fit between the double stators and the rotor; the design provides an effective structural scheme for the heat dissipation problem of the axial flux hub motor, and has important significance for development and research of the axial flux hub motor.
Description
Technical Field
The invention relates to the field of disc type hub motors, in particular to a heat radiation structure for a double-stator inner rotor axial magnetic flux hub motor.
Background
As the rotating speed of the hub motor is higher, more and more heat dissipation problems are generated; the heat dissipation is generally carried out by liquid cooling, air cooling or cooling fins and the like, but the heat dissipation has defects; the liquid cooling is easy to leak to cause short circuit of the motor, and the air cooling and the radiating fins have high structural design requirements and poor radiating effect.
In patent document CN206461488U, a forced heat dissipation type dual-stator axial magnetic field magnetic flux switching hub motor is disclosed, wherein fan blades are fixedly arranged in a rotor supporting ring, the fan blades are fixedly arranged between a shaft sleeve and the rotor supporting ring, a heat dissipation module is arranged outside the stator module, side heat dissipation fins and top heat dissipation fins are all distributed on a radiator base in a ring, and a water cooling heat dissipation disc is fixedly arranged outside the side heat dissipation fins. The hub motor is cooled by adopting a mode of combining air cooling and water cooling, heat of the hub motor can be dissipated to a certain extent, but the heat is concentrated around the stator rotor, the water cooling effect is good, but the distance between the water cooling heat dissipation disc and the stator rotor is far, the heat dissipation efficiency is low due to the fact that the heat dissipation fins are used for transferring the heat to the water cooling heat dissipation disc for heat dissipation, and the heat dissipation effect of the interior of the motor cannot meet the requirement only by means of arranging a fan in the rotor at the stator rotor.
Disclosure of Invention
The invention provides the double-stator inner rotor axial flux hub motor radiating structure which has the advantages of simple and compact structure, obvious radiating effect and capability of ensuring the integral tightness of the hub motor, so as to avoid the defects in the prior art.
The invention adopts the following technical scheme for realizing the purposes:
the invention relates to a heat radiation structure for a double-stator inner rotor axial flux hub motor, which is characterized by comprising an inner heat radiation module, an outer heat radiation module and a sealing module;
the inner heat dissipation module is provided with an oil cavity and a cooling liquid loop;
the structure of the oil cavity is as follows: the left end cover is connected with the rotating shaft by a left end cover bearing and is provided with a labyrinth seal, and the right end cover is connected with the rotating shaft by a right end cover bearing and is provided with a labyrinth seal; the left end cover is fixedly connected with the left stator (14); the right end cover is fixedly connected with the right stator; the left end cover and the right end cover are fixed through circumferential screws to form a sealed motor shell, so that an oil cavity outer layer is formed; the sealing module is used as an inner layer of the oil cavity to jointly form the oil cavity;
the structure of the cooling liquid loop is as follows: the periphery of the rotor sealing piece is provided with a cooling channel in the circumferential direction, the cooling pipeline is spiral, an A port of the cooling pipeline passes through a hole C on the left end cover to be fixed, and a B port of the cooling pipeline passes through a hole D on the right end cover to be fixed;
the structure of the outer heat dissipation module is as follows: the outer side of the left end cover is provided with a left radiating fin group, the outer side of the right end cover is provided with a right radiating fin group, the left radiating fin group is fixedly welded with the left end cover, and the right radiating fin group is fixedly welded with the right end cover;
the structure of the sealing module is as follows:
the rotor is positioned at the middle position on the rotating shaft, and the rotor and the rotating shaft are positioned by adopting a key slot and a clamp spring; the rotor sealing piece is positioned on the outer circumferential surface of the rotor, the rotor is positioned at the position right in the middle in the rotor sealing piece, and the rotor sealing piece and the rotor are fixed by welding;
the left stator is positioned at the left side of the rotor by a left shaft sleeve, and the right stator is positioned at the right side of the rotor by a right shaft sleeve; the left stator is connected with the rotor by a left stator bearing and is provided with a labyrinth seal, and the right stator is connected with the rotor by a right stator bearing and is provided with a labyrinth seal; labyrinth seals are arranged between the left stator and the rotor sealing element and between the right stator and the rotor sealing element;
the left stator, the right stator, the rotor sealing piece, the left stator bearing, the right stator bearing and the labyrinth sealing rings form a sealing module together.
The heat radiation structure for the double-stator inner rotor axial flux hub motor is also characterized in that: the cooling pipeline is a copper pipe and is spiral, the section of the pipeline is circular, and sealing rings are arranged in the holes C and the holes D to ensure tightness; the cooling liquid is connected into the cooling liquid circulation device outside the motor, enters the left cooling pipeline from the opening A of the cooling pipeline, flows back to the cooling liquid circulation device from the opening B of the cooling pipeline after flowing for one circle along the cooling loop, and completes one circulation.
The heat radiation structure for the double-stator inner rotor axial flux hub motor is also characterized in that: the left radiating fin group and the right radiating fin group are made of aluminum alloy materials, and the thickness is 1.5-2.5mm; the left radiating fin group and the right radiating fin group are composed of a plurality of wavy irregular radiating fins.
The heat radiation structure for the double-stator inner rotor axial flux hub motor is also characterized in that: a cooling oil port E is formed in the left end cover, and a sealing ring is arranged in the cooling oil port E to ensure tightness; the right end cover is provided with a cooling oil port F, and a sealing ring is arranged in the cooling oil port F to ensure tightness; cooling oil enters the oil cavity from the cooling oil port E, and flows back to the cooling oil circulation device from the cooling oil port F after filling the oil cavity.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a comprehensive heat radiation structure, namely the inner heat radiation module, the outer heat radiation module and the sealing module are mutually matched, thereby greatly enhancing the heat radiation efficiency and reducing the leakage rate.
2. The invention adopts an inner heat dissipation module. The first oil cavity is an oil cavity outer layer formed by left and right end covers, a double-end-cover bearing and a labyrinth seal ring which are in sealing fit, and the sealing module forms an oil cavity inner layer. The oil cavity space is large, the flow rate of cooling oil is large, the cooling oil is in direct contact with the outer sides of the stator and rotor sealing pieces, and the heat dissipation effect is obvious; the second is the spiral cooling loop in the end cover, the cooling pipeline is spiral, the section of the pipeline is circular, the flowing resistance of the cooling liquid is small, the flow speed is uniform, the required power is reduced, the cooling pipeline is fixed on the periphery of the rotor sealing piece, the occupied space is small, the cooling pipeline is close to a heat source, and the cooling pipeline is fully contacted with cooling oil, so that the cooling is facilitated.
3. The invention adopts an external heat dissipation module. The radiating fin group consists of a plurality of wavy irregular radiating fins, and the similar radiating fins are designed by the very high effect area of the blades of the natural irregular wavy algae, and have high radiating efficiency and attractive appearance. And the outer sides of the left end cover and the right end cover are welded with the radiating fin group, so that heat in the oil cavity is transferred to the radiating fin group through the end covers, the radiating area is increased, and the radiating efficiency is improved.
4. The invention adopts a sealing module. The outer peripheral surface of the double stators is matched with the rotor sealing piece in a labyrinth sealing way, and the double stators and the labyrinth sealing piece form a sealing module together. The labyrinth seal matching structure is zigzag seal, when the rotor rotates at high speed, the sealing module has good sealing performance, no lubrication and friction, high temperature and high pressure resistance and long service life.
Description of the drawings:
FIG. 1 is a schematic view of the overall appearance of a dual stator inner rotor axial flux in-wheel motor heat dissipating structure of the present invention;
FIG. 2 is an exploded view of the heat dissipating structure of the dual stator inner rotor axial flux in-wheel motor of the present invention;
FIG. 3 is a schematic view of a right end cap according to the present invention;
FIG. 4 is an axial cross-sectional view of the dual stator inner rotor axial flux in-wheel motor heat dissipating structure of the present invention;
FIG. 5 is an enlarged schematic view of a labyrinth joint view A of the stator and rotor of FIG. 4;
reference numerals in the drawings: the cooling device comprises a left cooling fin group 1, a rotating shaft 2, a left end cover 3, a left stator bearing 4, a left shaft sleeve 5, a right shaft sleeve 6, a right stator bearing 7, a right end cover 8, a left end cover bearing 9, a right end cover bearing 10, a right cooling fin group 11, a rotor 12, a right stator 13, a left stator 14, a cooling pipeline 15 and a rotor seal 16.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following description of the invention taken in conjunction with the accompanying drawings and examples.
The heat radiation structure for the double-stator inner rotor axial flux hub motor is characterized by comprising an inner heat radiation module, an outer heat radiation module and a sealing module.
See fig. 1, 2, 3, 4 and 5:
the inner heat dissipation module in this embodiment has an oil chamber and a coolant circuit: the structure of the oil cavity is as follows: the left end cover 3 is connected with the rotating shaft 2 by a left end cover bearing 9 and is provided with a labyrinth seal, and the right end cover 8 is connected with the rotating shaft 2 by a right end cover bearing 10 and is provided with a labyrinth seal; the left end cover 3 is fixedly connected with the left stator 14; the right end cover 8 is fixedly connected with the right stator 13; the left end cover 3 and the right end cover 8 are fixed through circumferential screws to form a sealed motor shell, so as to form an oil cavity outer layer; the sealing module is used as an inner layer of the oil cavity to jointly form the oil cavity; the structure of the cooling liquid loop is as follows: the periphery direction of the rotor sealing piece 16 is provided with a cooling channel 15, the cooling channel 15 is spiral, an A port of the cooling channel 15 passes through a hole C on the left end cover 3 to be fixed, and a B port of the cooling channel 15 passes through a hole D on the right end cover 8 to be fixed. For ease of installation, the rotor seal 16 is divided equally into two semi-cylindrical parts along the axis, welded to the outer circumference of the rotor 12, and then the dividing slits are welded.
The structure of the outer heat dissipation module is as follows: the outer side of the left end cover 3 is provided with a left radiating fin group 1, the outer side of the right end cover 8 is provided with a right radiating fin group 11, the left radiating fin group 1 is welded and fixed with the left end cover 3, and the right radiating fin group 11 is welded and fixed with the right end cover 8;
the structure of the sealing module is as follows: the rotor 12 is positioned at the middle position on the rotating shaft 2, and the rotor 12 and the rotating shaft 2 are positioned by adopting key slots and snap springs; the rotor sealing piece 16 is positioned on the outer circumferential surface of the rotor 12, the rotor 12 is positioned in the middle in the rotor sealing piece 16, and the rotor sealing piece 16 and the rotor 12 are fixed by welding; the left stator 14 is positioned on the left side of the rotor 12 by the left shaft sleeve 5, and the right stator 13 is positioned on the right side of the rotor 12 by the right shaft sleeve 6; the left stator 14 is connected with the rotor 12 by using the left stator bearing 4 and is provided with a labyrinth seal, and the right stator 13 is connected with the rotor 12 by using the right stator bearing 7 and is provided with a labyrinth seal; labyrinth seals are provided between the left stator 14 and the rotor seal 16, and between the right stator 13 and the rotor seal 16; the left stator 14, the right stator 13, the rotor seal 16, the left stator bearing 4, the right stator bearing 7 and the labyrinth seals together form a sealing module.
In a specific implementation, the corresponding structure arrangement also includes:
the cooling pipeline 15 is a copper pipe, is spiral, has a circular pipeline section, has small flow resistance and uniform flow velocity, reduces required power, is fully contacted with cooling oil, and is beneficial to heat dissipation; sealing rings are arranged in the holes C and the holes D to ensure tightness; the cooling liquid is connected into the cooling liquid circulation device outside the motor, enters the left cooling pipeline 15 from the opening A of the cooling pipeline 15, flows back to the cooling liquid circulation device from the opening B of the cooling pipeline 15 after flowing for one circle along the cooling loop, and completes one circulation.
The left radiating fin group 1 and the right radiating fin group 11 are made of aluminum alloy materials, and the thickness is 1.5-2.5mm; the left radiating fin group 1 and the right radiating fin group 11 are composed of a plurality of wavy irregular radiating fins.
The left end cover 3 is provided with a cooling oil port E, and a sealing ring is arranged in the cooling oil port E to ensure tightness; the right end cover 8 is provided with a cooling oil port F, and a sealing ring is arranged in the cooling oil port F to ensure tightness; cooling oil enters the oil cavity from the cooling oil port E, and flows back to the cooling oil circulation device from the cooling oil port F after filling the oil cavity.
The assembly method comprises the following steps:
as shown in fig. 2, 3 and 4, the sealing module is first installed, including: the rotor 12 is positioned at the middle position on the rotating shaft 2, and the rotor 12 and the rotating shaft 2 are positioned by adopting key slots and snap springs; the rotor seal 16 is welded to the outer circumferential surface of the rotor 12.
As shown in fig. 2, 3 and 5, the second mounting of the inner heat dissipation module includes: the left end cover 3 is connected with the rotating shaft 2 by a left end cover bearing 9, and the right end cover 8 is connected with the rotating shaft 2 by a right end cover bearing 10; the left end cover 3 is fixedly connected with the left stator 14; the right end cover 8 is fixedly connected with the right stator 13; the left end cover 3 and the right end cover 8 are fixedly connected through circumferential screws.
As shown in fig. 1, 2 and 3, the external heat dissipation module is finally installed: the left end cover 3 outside of wheel hub motor is equipped with left fin group 1, and the right end cover 8 outside is equipped with right fin group 11, and left fin group 1 and left end cover 3 welded fastening, right fin group 11 and right end cover 8 welded fastening.
After the connection of the oil cavity inlet and outlet and the cooling liquid loop inlet and outlet pipeline is completed, firstly, introducing cooling liquid into the cooling loop, then starting the motor, and after the rotor and the rotor sealing element rotate, introducing cooling oil into the oil cavity, so as to ensure that the air pressure at the labyrinth sealing position of the double stators and the rotor sealing element is stable and no cooling oil exists.
During operation of the motor, heat is generated by the stator 13, the stator 14 and the rotor 12, the heat of the end faces of the stator 13 and the stator 14 is consumed by cooling oil continuously circulated in the oil cavity, the heat of the outer peripheral faces of the stator 13, the stator 14 and the rotor is transferred to the cooling channel 15 through the rotor sealing piece to be consumed by cooling liquid continuously circulated, and if the cooling oil and the cooling liquid are heated, the heat is transferred to the left cooling fin 1 and the right cooling fin 11 through the left end cover and the right end cover to be consumed by using the increased heat dissipation area. Therefore, heat is dissipated to the outside while being consumed through the cooling liquid cooling pipeline, the oil cavity and the cooling fins, and proper temperatures of the inside and the outer shell of the hub motor are maintained, so that the normal operation of the motor is ensured.
Claims (4)
1. The heat radiation structure for the double-stator inner rotor axial flux hub motor is characterized by comprising an inner heat radiation module, an outer heat radiation module and a sealing module;
the inner heat dissipation module is provided with an oil cavity and a cooling liquid loop;
the structure of the oil cavity is as follows: the left end cover (3) is connected with the rotating shaft (2) by utilizing a left end cover bearing (9) and is provided with a labyrinth seal, and the right end cover (8) is connected with the rotating shaft (2) by utilizing a right end cover bearing (10) and is provided with a labyrinth seal; the left end cover (3) is fixedly connected with the left stator (14); the right end cover (8) is fixedly connected with the right stator (13); the left end cover (3) and the right end cover (8) are fixed through circumferential screws to form a sealed motor shell, so that an oil cavity outer layer is formed; the sealing module is used as an inner layer of the oil cavity to jointly form the oil cavity;
the structure of the cooling liquid loop is as follows: a cooling channel (15) is arranged in the peripheral direction of the rotor sealing piece (16), the cooling pipeline (15) is in a spiral shape, an A port of the cooling pipeline (15) passes through a hole C on the left end cover (3) to be fixed, and a B port of the cooling pipeline (15) passes through a hole D on the right end cover (8) to be fixed;
the structure of the outer heat dissipation module is as follows: the outer side of the left end cover (3) is provided with a left radiating fin group (1), the outer side of the right end cover (8) is provided with a right radiating fin group (11), the left radiating fin group (1) is fixedly welded with the left end cover (3), and the right radiating fin group (11) is fixedly welded with the right end cover (8);
the structure of the sealing module is as follows:
the rotor (12) is positioned at the middle position on the rotating shaft (2), and the rotor (12) and the rotating shaft (2) are positioned by adopting a key slot and a clamp spring; the rotor sealing piece (16) is positioned on the outer circumferential surface of the rotor (12), the rotor (12) is positioned in the middle in the rotor sealing piece (16), and the rotor sealing piece (16) and the rotor (12) are fixed by welding;
the left stator (14) is positioned on the left side of the rotor (12) by using a left shaft sleeve (5), and the right stator (13) is positioned on the right side of the rotor (12) by using a right shaft sleeve (6); the left stator (14) is connected with the rotor (12) by a left stator bearing (4) and is provided with a labyrinth seal, and the right stator (13) is connected with the rotor (12) by a right stator bearing (7) and is provided with a labyrinth seal; labyrinth seals are provided between the left stator (14) and the rotor seal (16) and between the right stator (13) and the rotor seal (16);
the left stator (14), the right stator (13), the rotor sealing piece (16), the left stator bearing (4), the right stator bearing (7) and the labyrinth seals jointly form a sealing module.
2. The heat dissipating structure for a dual stator inner rotor axial flux in-wheel motor of claim 1, wherein: the cooling pipeline (15) is a copper pipe and is spiral, the section of the pipeline is circular, and sealing rings are arranged in the holes C and D to ensure tightness; the cooling liquid is connected into the cooling liquid circulation device outside the motor, enters the left cooling pipeline (15) from the opening A of the cooling pipeline (15), flows back to the cooling liquid circulation device from the opening B of the cooling pipeline (15) after flowing for one circle along the cooling loop, and completes one circulation.
3. The heat dissipating structure for a dual stator inner rotor axial flux in-wheel motor of claim 1, wherein: the left radiating fin group (1) and the right radiating fin group (11) are made of aluminum alloy materials, and the thickness is 1.5-2.5mm; the left radiating fin group (1) and the right radiating fin group (11) are formed by a plurality of wavy irregular radiating fins.
4. The heat dissipating structure for a dual stator inner rotor axial flux in-wheel motor of claim 1, wherein: a cooling oil port E is formed in the left end cover (3), and a sealing ring is arranged in the cooling oil port E to ensure tightness; the right end cover (8) is provided with a cooling oil port F, and a sealing ring is arranged in the cooling oil port F to ensure tightness; cooling oil enters the oil cavity from the cooling oil port E, and flows back to the cooling oil circulation device from the cooling oil port F after filling the oil cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310825047.0A CN116915010A (en) | 2023-07-06 | 2023-07-06 | Heat radiation structure for double-stator inner rotor axial flux hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310825047.0A CN116915010A (en) | 2023-07-06 | 2023-07-06 | Heat radiation structure for double-stator inner rotor axial flux hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116915010A true CN116915010A (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310825047.0A Pending CN116915010A (en) | 2023-07-06 | 2023-07-06 | Heat radiation structure for double-stator inner rotor axial flux hub motor |
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| Country | Link |
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| CN (1) | CN116915010A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134545A (en) * | 2023-10-27 | 2023-11-28 | 厚华(天津)动力科技有限公司 | Efficient heat dissipation hub motor |
-
2023
- 2023-07-06 CN CN202310825047.0A patent/CN116915010A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134545A (en) * | 2023-10-27 | 2023-11-28 | 厚华(天津)动力科技有限公司 | Efficient heat dissipation hub motor |
| CN117134545B (en) * | 2023-10-27 | 2024-01-12 | 厚华(天津)动力科技有限公司 | Efficient heat dissipation hub motor |
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