CN116937892B - Wind and liquid mixed cooling device of disc type motor - Google Patents
Wind and liquid mixed cooling device of disc type motor Download PDFInfo
- Publication number
- CN116937892B CN116937892B CN202311063331.5A CN202311063331A CN116937892B CN 116937892 B CN116937892 B CN 116937892B CN 202311063331 A CN202311063331 A CN 202311063331A CN 116937892 B CN116937892 B CN 116937892B
- Authority
- CN
- China
- Prior art keywords
- air
- disc
- shaft
- rotor
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004323 axial length Effects 0.000 abstract 1
- 238000004364 calculation method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—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
-
- 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
- H02K5/20—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
- H02K9/08—Arrangements for cooling or ventilating by gaseous cooling medium circulating wholly within the machine casing
-
- 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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention belongs to the technical field of motors and control systems thereof, and particularly relates to a wind-liquid mixed cooling device of a disc motor. The disc type motor wind and liquid mixing cooling device comprises: the device comprises a shell, a rotor shaft, a first disc type water channel, a second disc type water channel, a rotor, a sealing end cover, a return air channel, a rotor shaft return air hole and an air delivery channel; the device realizes the efficient wind and liquid mixed cooling heat dissipation effect of the disc motor on the premise of not increasing the axial length of the disc motor by arranging the built-in air duct in the shaft and arranging the disc liquid cooling channel in the shell.
Description
Technical Field
The invention belongs to the technical field of motors and control systems thereof, and particularly relates to a wind-liquid mixed cooling device of a disc motor.
Background
With the rapid development of the new energy vehicle traffic field and the aviation field, a disk motor with high power density becomes a main development direction of a land-air transmission system motor. The temperature rise problem of the disc motor is also gradually highlighted due to the improvement of the power and the rotating speed requirements of the motor in the new energy field. The permanent magnet is sensitive to the working temperature, and when the temperature of the permanent magnet is too high, the performance of the permanent magnet can be drastically reduced, so that the performance of the motor is reduced, and even the permanent magnet is permanently demagnetized. The internal structure of the disc motor is compact, so that the cooling and heat dissipation of the disc motor, particularly the cooling and heat dissipation of the rotor have great difficulty.
Chinese patent CN115085432a provides a new energy motor rotor oil cooling system, which can cool the surface layer and the inner layer inside the rotor, and the oil supply is stable, and the oil can not be separated after entering the rotor, so that the oil supply deficiency is avoided. However, the method of spraying cooling oil onto the rotor by using the centrifugal force of high-speed rotation of the motor can lead to a relatively complex overall structure of the motor, higher cost, and low tightness and reliability due to the need of adding a set of oil cooling equipment.
The chinese patents CN108539888A and CN113949188A propose cooling modes and structures such as rotor air cooling, but these patents all adopt a fan added on the rotor shaft and because the fan blade drives the external air to enter the air passage, the dust in the external air is brought into the motor, resulting in reduced motor safety.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to solve the technical problems that: how to realize the high-efficient cooling heat dissipation of the disc motor under the current situation of compact structure of the disc motor, and ensure the tightness, reliability and safety of the disc motor.
(II) technical scheme
In order to solve the technical problems, the invention provides a wind and liquid mixed cooling device of a disc motor, which comprises: the device comprises a shell 1, a rotor shaft 2, a first disc-type water channel 3, a second disc-type water channel 4, a rotor 6, a sealing end cover 7, a return air channel 10, a rotor shaft return air hole 11 and an air delivery channel 12; wherein,
the shell 1 is of a flat hollow cylindrical structure;
the rotor shaft 2 and the shell 1 are coaxially fixed through sealing assemblies at two ends; a shaft output spline 204 integrally formed at one end of the rotor shaft 2 extends out of the casing 1, and a shaft extension end 201 where the shaft output spline 204 is positioned is sealed with the casing 1 through a sealing end cover 7; the other end of rotor shaft 2, except shaft extension end 201, is defined as non-shaft extension end 202; the axial passageway 203 extends to the end of the non-axial extension 202 to form an open opening;
the internal structure of the rotor shaft 2 is set as follows: the inside of the shaft output spline 204 is solid; the rest part of the rotor shaft 2 except the shaft output spline 204 is internally provided with a hollow in-shaft air duct 203 for ventilation; a rotor shaft return air hole 11 and a built-in fan type air delivery duct 12 are arranged on the wall surface of the in-shaft air duct 203; the rotor shaft air return hole 11 is arranged close to the end of the shaft output spline 204 and is used for conducting air flow heat dissipation circulation on the output side of the shell; the setting position of the built-in fan-type air delivery duct 12 is aligned with an air gap between a rotor and a stator of the disc motor, and when the disc motor works, air in the rotor shaft 2 is thrown out by centrifugal force generated by rotation of the built-in fan-type air delivery duct 12;
the two sides of the shell 1 along the axial direction are respectively provided with a first disc-type water channel 3 and a second disc-type water channel 4, and the first disc-type water channel 3 and the second disc-type water channel 4 are distributed on a radial plane of the motor and are used for fully taking away the heat of the disc-type motor;
the two axial ends of the disc type motor are respectively provided with a group of air return channels 10 which are uniformly and radially distributed along the circumference, and the positions of the two groups of air return channels 10 are respectively positioned at the outer axial sides of the first disc type water channel 3 and the second disc type water channel 4; the positional relationship between the first disc type water channel 3 and the second disc type water channel 4 and the nearby return air channels 10 is as follows: the water channel is arranged between the air return channel and the stator, so that the water channel can take away heat of the stator and fully cool air temperature in the air return channel.
Wherein, the cooling device working process is:
when the rotor 6 rotates, the built-in fan-type air delivery duct 12 throws hot air in the axial air duct 203 outwards along the radial direction, the air is conveyed to the circumference of the casing 1 along the air gap between the rotor and the stator and the gap between the stator windings, and when the hot air flows to the circumferential wall surface of the casing 1, the hot air enters the air return duct 10 at the two axial ends of the casing 1 along the arc-shaped wall surface due to the arc-shaped wall surface;
on the shaft extension end 201 side, hot air enters a cavity enclosed by the sealing assembly, the sealing end cover 7 and the rotor shaft 2 along the air return duct 10, returns to the in-shaft air duct 203 through the rotor shaft air return hole 11 on the shaft extension end 201 side of the rotor shaft 2, and is thrown outwards again through the built-in fan-type air supply duct 12, so that a closed loop is formed;
on the non-shaft extension end 202 side, hot air enters a cavity enclosed by the shell 1 and the rotor shaft 2 along the air return duct 10, enters the shaft air passage 203 of the rotor shaft 2 through an open opening at the end part of the non-shaft extension end 202, and is thrown outwards through the built-in fan type air delivery duct 12, so that a closed loop is formed;
when the hot air thrown out of the built-in fan type air delivery duct 12 reaches the two ends of the shell 1, the hot air is fully contacted with the first disc type water channel 3 and the second disc type water channel 4, so that the quick cooling is realized, the air returned to the built-in fan type air delivery duct 12 again becomes cold air, the cold air is continuously circulated, the internal structure of the disc type motor is cooled, and the cooling mode of the internal circulation of the air of the disc type motor is realized.
Wherein, the two ends of the rotor shaft 2 are coaxially fixed with the casing 1 through the shaft shoulders 205 at the two ends and the sealing components at the two ends;
the sealing assemblies at the two ends are divided into a first sealing bearing 501 and a second sealing bearing 502;
the shoulders 205 at the two ends are respectively attached to the sides of the first sealed bearing 501 and the second sealed bearing 502, so that the rotor shaft 2 is axially fixed between the two bearings.
The shaft extension end 201 is sealed with the casing 1 through a sealing end cover 7, and two identical lip-shaped sealing rings 701 are coaxially arranged in the sealing end cover 7, so as to realize dust prevention and dynamic sealing.
Wherein, 4 rotor shaft air return holes 11 are uniformly distributed along the circumference; the built-in fan type air delivery duct 12 is provided with two parallel rows, and the inner molded surfaces are all spiral.
The first disc type water channel 3 and the second disc type water channel 4 are identical in structure and are all disc type water channels surrounding the axis of the disc type motor.
The number of the air return ducts of the two groups of air return ducts 10 is determined according to the finite element simulation calculation result, and the size and the number of the air return ducts with the best ventilation effect are selected.
Wherein, two groups of return air ducts 10 are respectively provided with 18 return air ducts 10 along the circumference uniformly.
Wherein, the circumference of rotor 6 evenly distributed has a plurality of water conservancy diversion piece 13, and the water conservancy diversion piece 13 is when rotor 6 rotates for improve the air velocity of flow in the rotor 6 outside, sends out the air of built-in fan formula delivery duct 12, after rotor 6, sends into the casing fast.
Wherein, the number and shape positions of the guide vanes 13 are determined by finite element simulation calculation.
(III) beneficial effects
The invention provides a wind and liquid mixed cooling device of a disc motor, which is used for gradually improving the characteristic requirements of a motor such as high power and high rotating speed in the development of an electric transmission system of a new energy vehicle and the high requirements of a cooling device in the performance improvement process of the disc motor.
Compared with the prior art, the invention has the following advantages:
(1) The device is characterized in that a centrifugal air duct is arranged in a rotor shaft, and air in the disc type motor is driven to flow by outwards throwing wind through rotation of the rotor, and the air returns to the air duct in the rotor through the air duct in the shell, so that a closed circulation loop is formed in the motor, and the overall cooling of the internal structures of the motor such as the rotor, the stator, the windings and the like can be realized, so that the internal temperature of the motor is uniform;
(2) The centrifugal air duct in the rotor shaft arranged by the device replaces the traditional axial external fan, and the disc motor has a flat structure and a small axial size, which is the largest difference from the common radial motor in size and structure and is also a great advantage of the disc motor. If the fan is arranged outside in the axial direction, the axial dimension is greatly increased, and the greatest advantage of the disc motor in the axial structure is reduced;
(3) The device is provided with the internal self-circulation air duct, the cooling loop does not generate convection with external air, the tightness and the safety of the motor are effectively ensured, and meanwhile, the device is simple in structure and convenient to install;
(4) According to the device, the disc-shaped structure water channels are arranged on the machine shells at two axial sides of the disc-shaped motor, so that air in the internal circulation air channel is cooled, and a good heat dissipation effect can be achieved due to the large contact area between the disc-shaped structure water channels and the air channel.
Drawings
FIG. 1 is a schematic perspective view of a wind and liquid hybrid cooling device for a disc motor according to an embodiment of the present invention;
FIG. 2 is a side cross-sectional view of a disc motor wind and liquid hybrid cooling device according to an embodiment of the present invention;
FIG. 3 is a schematic side sectional position view of a disk motor wind-liquid hybrid cooling device according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a B-B water channel of a disk motor wind and liquid hybrid cooling device in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view of an A-A return duct of a disc motor wind and liquid hybrid cooling device according to an embodiment of the present invention;
FIG. 6 is a perspective view of a rotor shaft of a disc motor according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a rotor shaft of a disc motor in accordance with an embodiment of the present invention;
FIG. 8 is a schematic diagram of F-F centrifugal blow of a rotor shaft of a disc motor in accordance with an embodiment of the present invention;
FIG. 9 is a schematic perspective view of a portion of a rotor of a disc motor according to an embodiment of the present invention;
in the figure:
1-shell, 2-rotor shaft, 201-shaft extension end, 202-non-shaft extension end, 203-in-shaft air duct, 204-shaft output spline, 205-shaft shoulder, 3-first disk type water channel, 4-second disk type water channel, 501-first sealing bearing, 502-second sealing bearing, 6-rotor, 7-sealing end cover, 701-lip sealing ring, 8-stator core, 9-stator winding, 10-air return duct, 11-rotor shaft air return hole, 12-built-in fan type air delivery duct and 13-guide vane.
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the present invention will be given with reference to the accompanying drawings and examples.
In order to solve the above technical problems, the present invention provides a disc-type motor wind-liquid hybrid cooling device, as shown in fig. 1, comprising: the device comprises a shell 1, a rotor shaft 2, a first disc-type water channel 3, a second disc-type water channel 4, a rotor 6, a sealing end cover 7, a return air channel 10, a rotor shaft return air hole 11 and an air delivery channel 12; wherein,
the shell 1 is of a flat hollow cylindrical structure;
the rotor shaft 2 and the shell 1 are coaxially fixed through sealing assemblies at two ends; a shaft output spline 204 integrally formed at one end of the rotor shaft 2 extends out of the casing 1, and a shaft extension end 201 where the shaft output spline 204 is positioned is sealed with the casing 1 through a sealing end cover 7; the other end of rotor shaft 2, except shaft extension end 201, is defined as non-shaft extension end 202; the axial passageway 203 extends to the end of the non-axial extension 202 to form an open opening;
the internal structure of the rotor shaft 2 is set as follows: the inside of the shaft output spline 204 is solid; the rest part of the rotor shaft 2 except the shaft output spline 204 is internally provided with a hollow in-shaft air duct 203 for ventilation; a rotor shaft return air hole 11 and a built-in fan type air delivery duct 12 are arranged on the wall surface of the in-shaft air duct 203; the rotor shaft air return hole 11 is arranged close to the end of the shaft output spline 204 and is used for conducting air flow heat dissipation circulation on the output side of the shell; the setting position of the built-in fan-type air delivery duct 12 is aligned with an air gap between a rotor and a stator of the disc motor, and when the disc motor works, air in the rotor shaft 2 is thrown out by centrifugal force generated by rotation of the built-in fan-type air delivery duct 12;
the two sides of the shell 1 along the axial direction are respectively provided with a first disc-type water channel 3 and a second disc-type water channel 4, and the first disc-type water channel 3 and the second disc-type water channel 4 are distributed on a radial plane of the motor and are used for fully taking away the heat of the disc-type motor;
the two axial ends of the disc type motor are respectively provided with a group of air return channels 10 which are uniformly and radially distributed along the circumference, and the positions of the two groups of air return channels 10 are respectively positioned at the outer axial sides of the first disc type water channel 3 and the second disc type water channel 4; the positional relationship between the first disc type water channel 3 and the second disc type water channel 4 and the nearby return air channels 10 is as follows: the water channel is arranged between the air return channel and the stator, so that the water channel can take away heat of the stator and fully cool air temperature in the air return channel.
Wherein, the cooling device working process is:
as shown in fig. 2, the arrows in the drawing indicate the air circulation path inside the disc motor, when the rotor 6 rotates, the built-in fan type air delivery duct 12 throws the hot air inside the axial air duct 203 outwards along the radial direction, the air is conveyed to the circumference of the casing 1 along the air gap between the rotor and the stator and the gap between the stator windings, and when the hot air flows to the circumferential wall surface of the casing 1, the hot air enters the air return duct 10 at the two axial ends of the casing 1 along the arc-shaped wall surface due to the arc-shaped wall surface;
on the shaft extension end 201 side, hot air enters a cavity enclosed by the sealing assembly, namely the first sealing bearing 501, the sealing end cover 7 and the rotor shaft 2 along the air return duct 10, returns to the in-shaft air duct 203 through the rotor shaft air return hole 11 on the shaft extension end 201 side of the rotor shaft 2, and is thrown outwards again through the built-in fan-type air delivery duct 12, so that a closed loop is formed;
on the non-shaft extension end 202 side, hot air enters a cavity enclosed by the shell 1 and the rotor shaft 2 along the air return duct 10, enters the shaft air passage 203 of the rotor shaft 2 through an open opening at the end part of the non-shaft extension end 202, and is thrown outwards through the built-in fan type air delivery duct 12, so that a closed loop is formed;
when the hot air thrown out of the built-in fan type air delivery duct 12 reaches the two ends of the shell 1, the hot air is fully contacted with the first disc type water channel 3 and the second disc type water channel 4, so that the quick cooling is realized, the air returned to the built-in fan type air delivery duct 12 again becomes cold air, the cold air is continuously circulated, the internal structure of the disc type motor is cooled, and the cooling mode of the internal circulation of the air of the disc type motor is realized.
Wherein, the two ends of the rotor shaft 2 are coaxially fixed with the casing 1 through the shaft shoulders 205 at the two ends and the sealing components at the two ends;
the sealing assemblies at the two ends are divided into a first sealing bearing 501 and a second sealing bearing 502;
the shoulders 205 at the two ends are respectively attached to the sides of the first sealed bearing 501 and the second sealed bearing 502, so that the rotor shaft 2 is axially fixed between the two bearings.
The shaft extension end 201 is sealed with the casing 1 through a sealing end cover 7, and two identical lip-shaped sealing rings 701 are coaxially arranged in the sealing end cover 7, so as to realize dust prevention and dynamic sealing, as shown in fig. 2.
Wherein, 4 rotor shaft air return holes 11 are uniformly distributed along the circumference; the built-in fan type air delivery duct 12 is provided with two parallel rows, and the inner molded surfaces are all spiral, as shown in fig. 7 and 8.
The cross-sectional views of the first disc-type water channel 3 and the second disc-type water channel 4 are shown in fig. 4, and the first disc-type water channel 3 and the second disc-type water channel 4 are identical in structure and are all disc-type water channels surrounding the axis of the disc-type motor.
The number of the air return ducts of the two groups of air return ducts 10 is determined according to the finite element simulation calculation result, and the size and the number of the air return ducts with the best ventilation effect are selected.
As shown in fig. 5, the two groups of air return ducts 10 are respectively and uniformly provided with 18 air return ducts 10 along the circumference.
As shown in fig. 9, a plurality of flow guide plates 13 are uniformly distributed on the circumference of the rotor 6, and when the rotor 6 rotates, the flow guide plates 13 are used for improving the air flow rate at the outer side of the rotor 6, and the air sent out by the built-in fan type air delivery duct 12 is quickly sent into the casing after passing through the rotor 6.
Wherein, the number and shape positions of the guide vanes 13 are determined by finite element simulation calculation.
Preferably, the number of the guide vanes 13 is 18.
It should be noted that, the cooling modes of the disk motor wind and liquid cooling device provided by the invention, i.e. the combination of the built-in fan type air duct and the water cooling channel provided by the invention are all within the protection scope of the invention.
Meanwhile, the invention protects the structure of the disc type motor air channel, namely, two fan type air channels are arranged in the rotor shaft, air is thrown into the motor through the fan type air channels, air cooled by the water cooling channels is sent into the motor and uniformly mixed, the air takes away heat of a motor stator, a rotor and a winding, and the air channel is closed in the shaft through the shell air channel. The whole structure of the air duct, including the shell and the structure in the shaft, is within the protection scope of the invention.
In addition, the disc motor wind and liquid cooling device provided by the invention has the structural design that the air channel is positioned at the outer side of the water channel along the axial direction of the disc motor, the water channel can be arranged between the air channel and the stator, the water channel can take away the heat of the stator, and the air temperature in the air channel can be sufficiently cooled, so that the disc motor wind and liquid cooling device is within the protection scope of the invention.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (7)
1. The utility model provides a dish motor wind, liquid mix cooling device which characterized in that, dish motor wind, liquid mix cooling device includes: the device comprises a shell (1), a rotor shaft (2), a first disc type water channel (3), a second disc type water channel (4), a rotor (6), a sealing end cover (7), a return air channel (10), a rotor shaft return air hole (11) and a built-in fan type air delivery channel (12); wherein,
the shell (1) is of a flat hollow cylindrical structure;
the rotor shaft (2) and the shell (1) are coaxially fixed through sealing assemblies at two ends; a shaft output spline (204) integrally formed at one end of the rotor shaft (2) extends out of the machine shell (1), and a shaft extension end (201) where the shaft output spline (204) is positioned is sealed with the machine shell (1) through a sealing end cover (7); the other end of the rotor shaft (2) except the shaft extension end (201) is defined as a non-shaft extension end (202); an in-shaft channel (203) extends to the end of the non-shaft extension end (202) to form an open opening;
the internal structure of the rotor shaft (2) is set as follows: the inside of the shaft output spline (204) is solid; the rotor shaft (2) except the shaft output spline (204) is internally provided with a hollow in-shaft air duct (203) for circulating air; a rotor shaft return air hole (11) and a built-in fan type air delivery duct (12) are arranged on the wall surface of the shaft air delivery duct (203); the rotor shaft air return hole (11) is arranged close to the end of the shaft output spline (204) and is used for conducting air flow heat dissipation circulation on the output side of the shell; the setting position of the built-in fan-type air delivery duct (12) is aligned with an air gap between a rotor and a stator of the disc motor, and when the disc motor works, air in a rotor shaft (2) is thrown out by centrifugal force generated by rotation of the built-in fan-type air delivery duct (12);
the two sides of the shell (1) along the axial direction are respectively provided with a first disc-type water channel (3) and a second disc-type water channel (4), and the first disc-type water channel (3) and the second disc-type water channel (4) are fully distributed on a radial plane of the motor and are used for fully taking away heat of the disc-type motor;
the two axial ends of the disc type motor are respectively provided with a group of air return channels (10) which are uniformly and radially distributed along the circumference, and the positions of the two groups of air return channels (10) are respectively positioned at the axial outer sides of the first disc type water channel (3) and the second disc type water channel (4); the position relation between the first disc type water channel (3) and the second disc type water channel (4) and the nearby return air channels (10) is as follows: the water channel is arranged between the air return channel and the stator, so that the water channel can take away heat of the stator and fully cool air temperature in the air return channel;
the working process of the cooling device is as follows:
when the rotor (6) rotates, the built-in fan type air delivery duct (12) throws hot air in the axial air duct (203) outwards along the radial direction, the air is conveyed to the circumference of the casing (1) along the air gap between the rotor and the stator and the gap between the stator windings, and when the hot air flows to the circumferential wall surface of the casing (1), the hot air enters the air return duct (10) at the two axial ends of the casing (1) along the arc-shaped wall surface due to the arc-shaped wall surface;
at the shaft extension end (201), hot air enters a cavity enclosed by the sealing assembly, the sealing end cover (7) and the rotor shaft (2) along the air return channel (10), returns to the air channel (203) in the shaft through a rotor shaft air return hole (11) at one side of the shaft extension end (201) of the rotor shaft (2), and is thrown outwards again through the built-in fan type air delivery channel (12), so that a closed loop is formed;
on the non-shaft extension end (202) side, hot air enters a cavity formed by the enclosure (1) and the rotor shaft (2) along the air return channel (10), enters an in-shaft air channel (203) of the rotor shaft (2) through an open opening at the end part of the non-shaft extension end (202), and is thrown outwards through the built-in fan-type air delivery channel (12), so that a closed loop is formed;
when the hot air thrown out by the built-in fan type air delivery duct (12) reaches the two ends of the shell (1), the hot air is fully contacted with the first disc type water channel (3) and the second disc type water channel (4), so that the quick cooling is realized, the air returned to the built-in fan type air delivery duct (12) again becomes cold air, the air is circulated continuously, the internal structure of the disc type motor is cooled, and the cooling mode of the internal circulation of the air of the disc type motor is realized.
2. The wind-liquid mixing cooling device of a disc motor according to claim 1, wherein the two ends of the rotor shaft (2) are coaxially fixed with the casing (1) through shaft shoulders (205) at the two ends and sealing assemblies at the two ends;
the sealing assemblies at the two ends are divided into a first sealing bearing (501) and a second sealing bearing (502);
the shaft shoulders (205) at the two ends are respectively attached to the side surfaces of the first sealing bearing (501) and the second sealing bearing (502), so that the rotor shaft (2) is axially fixed between the two bearings.
3. A disc motor wind and liquid mixing cooling device according to claim 1, characterized in that the shaft extension end (201) is sealed with the casing (1) by a sealing end cover (7), and two identical lip-shaped sealing rings (701) are coaxially arranged in the sealing end cover (7) for realizing dust prevention and dynamic sealing.
4. A disc type motor wind and liquid mixing cooling device according to claim 1, wherein 4 rotor shaft return air holes (11) are uniformly distributed along the circumference; the built-in fan type air delivery duct (12) is provided with two parallel rows, and the inner molded surfaces are all spiral.
5. A disc motor wind and liquid hybrid cooling device according to claim 1, characterized in that the first disc water channel (3) and the second disc water channel (4) are identical in structure and are all disc water channels surrounding the axis of the disc motor.
6. A disc motor wind and liquid mixing cooling device according to claim 1, characterized in that the two groups of return air ducts (10) are each provided with 18 return air ducts (10) evenly along the circumference.
7. The disc type motor wind and liquid mixing cooling device according to claim 1, characterized in that a plurality of guide vanes (13) are uniformly distributed on the circumference of the rotor (6), and the guide vanes (13) are used for improving the air flow rate at the outer side of the rotor (6) when the rotor (6) rotates, and the air sent out by the built-in fan type air delivery duct (12) is quickly sent into the casing after passing through the rotor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311063331.5A CN116937892B (en) | 2023-08-23 | 2023-08-23 | Wind and liquid mixed cooling device of disc type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311063331.5A CN116937892B (en) | 2023-08-23 | 2023-08-23 | Wind and liquid mixed cooling device of disc type motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116937892A CN116937892A (en) | 2023-10-24 |
| CN116937892B true CN116937892B (en) | 2024-03-15 |
Family
ID=88387996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311063331.5A Active CN116937892B (en) | 2023-08-23 | 2023-08-23 | Wind and liquid mixed cooling device of disc type motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116937892B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1164661A (en) * | 1965-07-31 | 1969-09-17 | Lloyd Dynamowerke Gmbh | Electrical Machine for Disc-Type Construction |
| CN102148550A (en) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | Radiating structure for vertical shaft-disc-type outer rotor motor |
| CN105576919A (en) * | 2016-01-13 | 2016-05-11 | 徐俊 | Disc type motor of integral cooling heat radiation structure |
| CN205319816U (en) * | 2016-01-20 | 2016-06-15 | 崔小兵 | Permanent magnetism disk type motor cooling system |
| CN109904985A (en) * | 2018-06-21 | 2019-06-18 | 浙江星煜工贸有限公司 | A kind of built-in iron-core-free disc motor to radiate |
| CN210693686U (en) * | 2019-11-01 | 2020-06-05 | 湖南众联鑫创动力科技有限公司 | Rare earth permanent magnet disc type coreless motor heat dissipation system |
| CN210958008U (en) * | 2020-01-13 | 2020-07-07 | 北京环益创智科技有限公司 | Coreless disc type motor with cooling structure |
| CN113746232A (en) * | 2020-05-29 | 2021-12-03 | 卧龙电气驱动集团股份有限公司 | Mixed cooling double-rotor single-stator disc type permanent magnet motor |
-
2023
- 2023-08-23 CN CN202311063331.5A patent/CN116937892B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1164661A (en) * | 1965-07-31 | 1969-09-17 | Lloyd Dynamowerke Gmbh | Electrical Machine for Disc-Type Construction |
| CN102148550A (en) * | 2010-02-08 | 2011-08-10 | 国能风力发电有限公司 | Radiating structure for vertical shaft-disc-type outer rotor motor |
| WO2011095065A1 (en) * | 2010-02-08 | 2011-08-11 | 国能风力发电有限公司 | Vertical shaft disc-type outer rotor electric machine and cooling structure thereof |
| CN105576919A (en) * | 2016-01-13 | 2016-05-11 | 徐俊 | Disc type motor of integral cooling heat radiation structure |
| CN205319816U (en) * | 2016-01-20 | 2016-06-15 | 崔小兵 | Permanent magnetism disk type motor cooling system |
| CN109904985A (en) * | 2018-06-21 | 2019-06-18 | 浙江星煜工贸有限公司 | A kind of built-in iron-core-free disc motor to radiate |
| CN210693686U (en) * | 2019-11-01 | 2020-06-05 | 湖南众联鑫创动力科技有限公司 | Rare earth permanent magnet disc type coreless motor heat dissipation system |
| CN210958008U (en) * | 2020-01-13 | 2020-07-07 | 北京环益创智科技有限公司 | Coreless disc type motor with cooling structure |
| CN113746232A (en) * | 2020-05-29 | 2021-12-03 | 卧龙电气驱动集团股份有限公司 | Mixed cooling double-rotor single-stator disc type permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116937892A (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108711964B (en) | Permanent magnet motor with built-in multistage fan type double-path self-circulation ventilation cooling system | |
| RU2695320C1 (en) | Combined cooling system of closed inductor machine | |
| CN108649749B (en) | Switched reluctance motor with water injection type winding and multidirectional self-circulation ventilation system | |
| KR20100106247A (en) | Arrangement and method for cooling an electrical machine | |
| WO2021027301A1 (en) | Stator block, stator assembly, and cooling system for stator assembly | |
| CN110460198A (en) | High-speed permanent magnet motor | |
| CN112260485B (en) | Double-pumping interactive high-power density motor | |
| JP2014033584A (en) | Wind cooling structure of rotary electric machine | |
| CN111969767A (en) | Motor cooling system and motor | |
| WO2023097845A1 (en) | Totally-enclosed self-ventilated motor cooling structure | |
| CN115733325A (en) | Axial flux motor with built-in rotor of centrifugal fan and oil-cooled stator | |
| CN109904985A (en) | A kind of built-in iron-core-free disc motor to radiate | |
| CN208209735U (en) | A kind of built-in iron-core-free disc motor to radiate | |
| US20240213852A1 (en) | Permanent magnet motor with high-efficiency air-water mixed cooling system | |
| CN108365703B (en) | Motor air-cooled impeller, double-air-channel motor and electric vehicle | |
| CN116937892B (en) | Wind and liquid mixed cooling device of disc type motor | |
| CN117040196A (en) | Double-centrifugal-axial-flow overlapped cooling supercharged variable-speed pumped storage generator motor ventilation system | |
| CN112383191A (en) | Self-fan cold axial flux motor with external centrifugal fan | |
| CN218472873U (en) | Axial flux motor and vehicle | |
| CN214256045U (en) | Axial flux motor and vehicle with same | |
| CN113965019B (en) | Rotor heat radiation structure of sealed motor | |
| CN112713716B (en) | Closed motor with internal and external cooling wind path and motor base | |
| CN112688491B (en) | Permanent magnet motor high efficiency ventilation cooling system | |
| CN113612329A (en) | Axial flux electric machine | |
| CN112366894A (en) | Rare earth permanent magnet motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |