CN114665684B - Direct-drive permanent magnet motor - Google Patents
Direct-drive permanent magnet motor Download PDFInfo
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- CN114665684B CN114665684B CN202210568984.8A CN202210568984A CN114665684B CN 114665684 B CN114665684 B CN 114665684B CN 202210568984 A CN202210568984 A CN 202210568984A CN 114665684 B CN114665684 B CN 114665684B
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- 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
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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- 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
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- 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
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- 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
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- 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
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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
- H02K9/02—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 motors, and particularly discloses a direct-drive permanent magnet motor, which comprises: the motor water cooling shell assembly comprises a motor shell and a water cooling sealing cylinder, a motor cavity is formed in the motor shell, the water cooling sealing cylinder is inserted in the motor cavity, and a water circulation water cooling cavity is formed between the outer wall of the water cooling sealing cylinder and the inner wall of the motor cavity so as to cool the motor shell and the water cooling sealing cylinder by water cooling; the stator winding cylinder is arranged in the water-cooling sealing cylinder in a penetrating way; the air-cooled rotor assembly is arranged in the stator winding cylinder and comprises a permanent magnet mounting cylinder, and a plurality of permanent magnets are detachably mounted on the circumference surrounding the permanent magnet mounting cylinder, so that the heat of the permanent magnet mounting cylinder is cooled by air cooling while being cooled by a water-cooled sealing cylinder; the direct-drive permanent magnet motor greatly improves the overall heat dissipation efficiency, reduces heat accumulation in the direct-drive permanent magnet motor, prevents the permanent magnet from demagnetizing, and prolongs the service life of the direct-drive permanent magnet motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a direct-drive permanent magnet motor.
Background
The direct-drive permanent magnet motor has higher power and mass ratio, can realize direct-drive control and smaller size, and therefore has greater advantages in the use process, in addition, the speed and the braking performance of the motor are very good, the use characteristic is one of the main reasons of the direct-drive permanent magnet motor which is concerned in the market, but the heat dissipation problem of the direct-drive permanent magnet motor is concerned in the industry all the time, because the direct-drive permanent magnet motor has higher heat in the working process, if the direct-drive permanent magnet motor cannot effectively dissipate the heat, the demagnetization phenomenon of the permanent magnet is easy to occur, and the service life of the motor is influenced.
For example, chinese patent document CN202021845982.1 discloses a novel permanent magnet motor with high heat dissipation efficiency, which includes a permanent magnet motor body; the box body is arranged outside the permanent magnet motor body; a motor shaft; the motor shaft is arranged in the permanent magnet motor body and extends out of the box body; the heat absorption sleeve is fixedly sleeved on the outer wall of the permanent magnet motor body; the heat absorption coil is wound on the heat absorption sleeve; the water pump is fixedly arranged at the top of the box body; the water outlet pipe is fixedly arranged on a water outlet of the water pump, and one end, far away from the water pump, of the water outlet pipe extends into the box body and is fixedly connected with the heat absorption coil pipe.
Among the foretell permanent magnet motor structure, the permanent magnet motor body is through setting up in a box, and the winding is endothermic on the permanent magnet motor body through the coil pipe, then uses the water-cooling mode heat dissipation, bloies in the box through radiator vane simultaneously, that is to say, whole heat dissipation all dispels the heat to the permanent magnet motor body, but on the permanent magnet motor body was hardly conducted fast to inside heat under normal conditions, therefore the heat still gathers in inside, still very big to the influence of permanent magnet.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a direct-drive permanent magnet motor to solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a direct drive permanent magnet electric machine comprising:
the motor water cooling shell assembly comprises a motor shell and a water cooling sealing cylinder, a motor cavity is formed in the motor shell, the water cooling sealing cylinder is inserted in the motor cavity, and a water circulation water cooling cavity is formed between the outer wall of the water cooling sealing cylinder and the inner wall of the motor cavity so as to cool the motor shell and the water cooling sealing cylinder by water cooling;
the stator winding cylinder penetrates through the water-cooling sealing cylinder, a winding groove is formed in the inner wall of the stator winding cylinder, a copper wire is wound through the winding groove, and the outer wall of the stator winding cylinder is in contact with the inner wall of the water-cooling sealing cylinder so that heat of the stator winding cylinder is conducted to the water-cooling sealing cylinder;
air-cooled rotor subassembly, it sets up in stator winding section of thick bamboo, air-cooled rotor subassembly includes a permanent magnet installation section of thick bamboo, encircles demountable installation has a plurality of permanent magnets on the circumference of a permanent magnet installation section of thick bamboo, the axis of a permanent magnet installation section of thick bamboo runs through and is provided with the shaft hole, the joint has the pivot in the shaft hole, the wind groove has all been seted up at the both ends of a permanent magnet installation section of thick bamboo, all is provided with the wind channel that is linked together in the wind groove at both ends, the wind channel is used for the input air current, the wind channel is linked together with shaft hole and permanent magnet respectively to make the heat of a permanent magnet installation section of thick bamboo cool down through the forced air cooling when cooling seals a section of thick bamboo.
The invention has the beneficial effects that: form the hydrologic cycle water-cooling chamber between the outer wall of water-cooling seal section of thick bamboo and the inner wall in motor chamber, make whole hydrologic cycle water-cooling chamber encircle whole motor chamber, thereby constantly cool down motor intracavity portion, and the stator winding section of thick bamboo contacts with the water-cooling seal section of thick bamboo, make stator winding section of thick bamboo body constantly dispel the heat equally, and simultaneously, cooperation air-cooled rotor subassembly constantly is from the wind channel input air current of one end, other end output air current, make the air current constantly take away permanent magnet installation section of thick bamboo and permanent magnet, the heat of pivot, pass through the water-cooling heat dissipation with the heat dispersion to the stator winding section of thick bamboo simultaneously, make holistic radiating efficiency improve greatly, it accumulates in directly driving permanent magnet motor to reduce the heat, prevent the permanent magnet demagnetization, improve the life who directly drives permanent magnet motor.
Furthermore, the water-cooling sealing cylinder comprises two end rings, a sealing ring is sleeved on the outer circumference of each end ring, a plurality of water-cooling fins are arranged between the two end rings, water through holes are formed in the water-cooling fins, a plurality of independent water-cooling grooves are formed by enclosing the two end rings, the plurality of water-cooling fins and the inner wall of the motor shell, and the plurality of independent water-cooling grooves are communicated through the water through holes so that the water circulation water-cooling cavities are formed among the plurality of water-cooling grooves.
After adopting above-mentioned further structure, the hydrologic cycle water-cooling chamber that a plurality of independent water-cooling tanks formed can dispel the heat to the inner wall of motor casing, is that rivers are full of whole hydrologic cycle water-cooling chamber moreover for rivers encircle whole motor casing inner wall and dispel the heat, and traditional coil pipe formula is not promoted the radiating effect greatly.
Furthermore, the outer wall of the motor casing is provided with a plurality of radiating fins, the upper end of the outer wall of the motor casing is provided with a water inlet, one side of the outer wall of the motor casing is provided with a water outlet, the water inlet is communicated with one of the water cooling tanks, and the water outlet is communicated with one of the water cooling tanks.
After adopting above-mentioned further structure, the radiating fin can be used to dispel the heat to the rivers in hydrologic cycle water-cooling chamber, further promotes the radiating effect, advances cold water through the water inlet, makes cold water be full of whole hydrologic cycle water-cooling chamber, and delivery port output hot water simultaneously for the water in hydrologic cycle water-cooling chamber constantly circulates, improves the radiating effect.
Furthermore, the outer wall of the permanent magnet installation cylinder is provided with a plurality of permanent magnet installation grooves for installing permanent magnets, permanent magnet radiating openings are formed in the permanent magnet installation grooves, and the permanent magnet radiating openings are communicated with the air duct.
After adopting above-mentioned further structure, when inputing the air current in the wind channel, the air current can enter into in the permanent magnet mounting groove for the heat of permanent magnet is taken away to the air current, further promotes the radiating effect of permanent magnet.
Furthermore, set up the first louvre corresponding with the permanent magnet mounting groove on the permanent magnet, permanent magnet mounting groove upper cover is equipped with the fixed lid of permanent magnet, and this permanent magnet is fixed to be covered and is seted up the second louvre corresponding with first louvre, and one side that this permanent magnet fixed lid is close to the permanent magnet is provided with the snap ring of joint in first louvre.
After adopting above-mentioned further structure, when the heat of permanent magnet was taken away to the air current, because the fixed lid of permanent magnet is provided with the second louvre for the heat that the permanent magnet was taken away to the air current contacts with the stator winding section of thick bamboo, makes partial heat carry out the heat transfer through stator winding section of thick bamboo and water circulation water-cooling chamber fast, makes inside heat conduct fast, and the radiating efficiency is high, and whole fixed lid of permanent magnet can be dismantled in addition, so that change the permanent magnet, be convenient for maintain.
Furthermore, the diameter in shaft hole is greater than the diameter of pivot, the inner wall at shaft hole both ends all is provided with a plurality of first ring gears, be provided with the second ring gear corresponding with first ring gear on the both ends outer wall of pivot to when making the pivot joint in the shaft hole, make to form the clearance between the inner wall in pivot and shaft hole, this clearance is linked together with the wind channel.
After adopting above-mentioned further structure, the cooperation of first ring gear and second ring gear can make the pivot stabilize in the shaft hole, and the accessible clearance passes through the wind channel with the heat of inside simultaneously and takes away, reduces the inside heat of motor, prevents that high temperature from influencing the motor life-span.
Furthermore, one end of the rotating shaft is an output end, and an air inlet assembly is installed at the other end of the rotating shaft, so that air flow enters the air channel through the air inlet assembly.
After adopting above-mentioned further structure, import the wind channel of one end through the air inlet subassembly with the air current for the inside quick circulation of air current of motor dispels the heat and heat-conduction.
Further, the air inlet subassembly includes:
the filter cover is used for filtering dust of the air flow and is arranged on the end face of the motor shell;
the air injection assembly is used for inputting airflow into the air groove at a high speed so as to enable the airflow to enter the air channel quickly, the air injection assembly is installed between the filter cover and the motor shell, the rotating shaft penetrates through the air injection assembly and extends into the filter cover;
and the fan blades are arranged between the filter cover and the air spraying assembly and are arranged on the rotating shaft so as to enable the fan blades and the rotating shaft to rotate synchronously.
After adopting above-mentioned further structure, the filter house can prevent that dust from gathering to the motor inside, spouts the wind subassembly and can spout the wind channel with the air current is quick in to make the air current in the wind channel force into the wind channel fast, thereby improve the flow force of air current, improve the radiating effect.
Furthermore, the air spraying assembly comprises a mounting seat and an air spraying ring arranged in the mounting seat, the mounting seat is inserted in the filter cover, a bearing connected with the rotating shaft is arranged at the central position of the mounting seat, at least two air inlet grooves are formed in the mounting seat, a middle hole corresponding to the bearing is formed in the air spraying ring, at least two air spraying channels corresponding to the air inlet grooves are formed in the air spraying ring, and the air spraying channels correspond to the air grooves.
After adopting above-mentioned further structure, the flabellum is when rotatory along the pivot, inhales the air current and spouts the wind subassembly, through spouting the wind channel blowout to make the air current spout the wind channel in, simple structure, the radiating effect is obvious moreover.
Furthermore, the air injection duct is upwards raised relative to the air injection ring, an air injection hole is arranged in the air injection duct, and an inclined plane is arranged on one side, away from one end of the fan blade, of the air injection hole, so that the aperture of the air injection hole is gradually narrowed towards the air groove direction from the fan blade.
After adopting above-mentioned further structure, the blast hole in the wind channel narrows down towards the air-out direction gradually for the pressure increase of air-out, thereby improve the air-out speed, thereby accelerate the air current in the wind channel and enter into the wind channel, improve thermal radiating effect.
Drawings
Fig. 1 is a schematic perspective view of a direct-drive permanent magnet motor according to the present invention.
Fig. 2 is an exploded view of the intake assembly of the present invention.
Fig. 3 is a schematic sectional structure view of the blast ring.
Fig. 4 is a schematic perspective view of the direct-drive permanent magnet motor of the present invention without an air intake assembly.
Fig. 5 is a schematic perspective view of a stator winding cylinder.
Fig. 6 is a schematic perspective view of the air-cooled rotor assembly, the water-cooled sealing cylinder, and the stator winding cylinder.
Fig. 7 is an exploded view of the air-cooled rotor assembly.
In the figure: the air-cooled motor comprises a motor shell 1, an air inlet component 2, a permanent magnet 3, a rotating shaft 4, a filter cover 5, fan blades 6, a mounting seat 7, an air inlet groove 8, a bearing 9, an air spraying ring 10, an air spraying channel 11, a middle hole 12, a water inlet 13, a water outlet 14, a water-cooled sealing cylinder 15, an end ring 16, a sealing ring 17, a water-cooled fin 18, a water through hole 19, a stator winding cylinder 20, an air-cooled rotor component 21, a winding group groove 22, a permanent magnet mounting cylinder 23, a shaft hole 24, an air groove 25, an air duct 26, a permanent magnet mounting groove 27, a permanent magnet heat dissipation port 28, a permanent magnet fixing cover 29, a second heat dissipation hole 30, a clamping ring 300, a first gear ring 31, a second gear ring 32, an air spraying hole 33 and an inclined plane 34.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
With reference to fig. 1 to 7, a direct-drive permanent magnet motor includes a motor water-cooling shell assembly, a stator winding drum 20 and an air-cooling rotor assembly 21, wherein the motor water-cooling shell assembly includes a motor casing 1 and a water-cooling sealing drum 15, a motor cavity is provided in the motor casing 1, the water-cooling sealing drum 15 is inserted into the motor cavity, and a water circulation water-cooling cavity is formed between an outer wall of the water-cooling sealing drum 15 and an inner wall of the motor cavity, so that the motor casing 1 and the water-cooling sealing drum 15 are cooled by water cooling;
the stator winding cylinder 20 is arranged in the water-cooling sealing cylinder 15 in a penetrating mode, a winding groove 22 is formed in the inner wall of the stator winding cylinder 20, copper wires are wound through the winding groove 22, and the outer wall of the stator winding cylinder 20 is in contact with the inner wall of the water-cooling sealing cylinder 15 so that heat of the stator winding cylinder 20 is conducted to the water-cooling sealing cylinder 15;
air-cooled rotor subassembly 21 sets up in stator winding section of thick bamboo 20, air-cooled rotor subassembly 21 includes permanent magnet installation section of thick bamboo 23, demountable installation has a plurality of permanent magnets 3 on the circumference of encircleing permanent magnet installation section of thick bamboo 23, the axis of permanent magnet installation section of thick bamboo 23 runs through and is provided with shaft hole 24, the joint has pivot 4 in the shaft hole 24, wind groove 25 has all been seted up at the both ends of permanent magnet installation section of thick bamboo 23, all be provided with the wind channel 26 that is linked together in the wind groove 25 at both ends, wind channel 26 is used for the input air current, wind channel 26 is linked together with shaft hole 24 and permanent magnet 3 respectively, so that the heat of permanent magnet installation section of thick bamboo 23 is when cooling down through water-cooling sealed section of thick bamboo 15, cool down through the forced air-cooling.
Form the hydrologic cycle water-cooling chamber between the outer wall of water-cooling seal tube 15 and the inner wall in motor chamber in this embodiment, make whole hydrologic cycle water-cooling chamber encircle whole motor chamber, thereby constantly cool down motor intracavity portion, and stator winding section of thick bamboo 20 contacts with water-cooling seal tube 15, make stator winding section of thick bamboo 20 body constantly dispel the heat equally, and simultaneously, cooperation air-cooled rotor subassembly 21 constantly inputs the air current from the wind channel 26 of one end, other end output air current, make the air current constantly take away permanent magnet installation section of thick bamboo 23 and permanent magnet 3, the heat of pivot 4, pass through the water-cooling heat dissipation with heat dispersion to stator winding section of thick bamboo 20 simultaneously, make holistic radiating efficiency improve greatly, it accumulates in directly driving permanent magnet motor to reduce the heat, prevent the permanent magnet demagnetization, improve permanent magnet motor's life.
As shown in fig. 2, one end of the rotating shaft 4 is an output end, and the other end is provided with the air intake assembly 2, so that the air flow enters the air duct 26 through the air intake assembly 2; airflow is input into the air duct 26 at one end through the air inlet assembly 2, so that the airflow inside the motor rapidly circulates to perform heat dissipation and heat conduction.
The air inlet assembly 2 comprises a filter cover 5, an air spraying assembly and fan blades 6, the filter cover 5 is used for filtering dust of air flow, and the filter cover 5 is installed on the end face of the motor shell 1; the air injection assembly is used for inputting airflow into the air groove 25 at a high speed so as to enable the airflow to rapidly enter the air channel 26, the air injection assembly is installed between the filter cover 5 and the motor shell 1, the rotating shaft 4 penetrates through the air injection assembly, and the rotating shaft extends into the filter cover 5; the fan blades 6 are positioned between the filter cover 5 and the air injection assembly, and the fan blades 6 are arranged on the rotating shaft 4 so that the fan blades 6 and the rotating shaft 4 rotate synchronously.
The filter cover 5 in this embodiment can prevent dust from accumulating inside the motor, and the air spraying assembly can spray air flow into the air duct 25 quickly, so that the air flow in the air duct 25 is forced into the air duct 26 quickly, thereby improving the flow force of the air flow and improving the heat dissipation effect.
As shown in fig. 2 and 3, the air injection assembly in this embodiment includes a mounting base 7 and an air injection ring 10 disposed in the mounting base 7, the mounting base 7 is inserted into the filter housing 5, a bearing 9 connected to the rotating shaft 4 is disposed at a central position of the mounting base 7, at least two air inlet slots 8 are disposed on the mounting base 7, a central hole 12 corresponding to the bearing 9 is disposed on the air injection ring 10, at least two air injection channels 11 corresponding to the air inlet slots 8 are disposed on the air injection ring 10, and the air injection channels 11 correspond to the air slots 25; when the fan blade 6 rotates along with the rotating shaft 4, the air flow is sucked into the air spraying assembly and sprayed out through the air spraying channel 11, so that the air flow is sprayed into the air groove 25, the structure is simple, and the heat dissipation effect is obvious.
Wherein, the air injection duct 11 protrudes upwards relative to the air injection ring 10, an air injection hole 33 is arranged in the air injection duct 11, and one side of the air injection hole 33 far away from one end of the fan blade 6 is provided with an inclined plane 34, so that the aperture of the air injection hole 33 is gradually narrowed from the fan blade 6 to the air groove 25; the air injection holes 33 in the air injection duct 11 gradually narrow toward the air outlet direction, so that the pressure of the air outlet is increased, the air outlet speed is increased, the air flow in the air groove 25 is accelerated to enter the air duct 26, and the heat radiation effect is improved.
As shown in fig. 5 and 6, the water-cooled sealing cylinder 15 in the present embodiment includes two end rings 16, a sealing ring 17 is sleeved on an outer circumference of the end rings 16, a plurality of water-cooled fins 18 are disposed between the two end rings 16, water through holes 19 are disposed on the water-cooled fins 18, a plurality of independent water-cooled grooves are formed by enclosing the two end rings 16, the plurality of water-cooled fins 18 and an inner wall of the motor casing 1, and the plurality of independent water-cooled grooves are communicated with each other through the water through holes 19, so that a water circulation water-cooled cavity is formed between the plurality of water-cooled grooves; the hydrologic cycle water-cooling chamber that a plurality of independent water-cooling tanks formed can dispel the heat to the inner wall of motor casing 1, is that rivers are full of whole hydrologic cycle water-cooling chamber moreover for rivers encircle whole motor casing 1 inner wall and dispel the heat, and traditional coil pipe formula is not, and the radiating effect promotes greatly.
As shown in fig. 4, the outer wall of the motor casing 1 is provided with a plurality of heat dissipation fins, the upper end of the outer wall of the motor casing 1 is provided with a water inlet 13, one side of the outer wall of the motor casing 1 is provided with a water outlet 14, the water inlet 13 is communicated with one of the water cooling tanks, and the water outlet 14 is communicated with one of the water cooling tanks; radiating fin can be used to dispel the heat to the rivers in hydrologic cycle water-cooling chamber, further promotes the radiating effect, advances cold water through water inlet 13, makes cold water be full of whole hydrologic cycle water-cooling chamber, and 14 output hot water in delivery port simultaneously for the water in hydrologic cycle water-cooling chamber constantly circulates, improves the radiating effect.
As shown in fig. 7, the outer wall of the permanent magnet mounting cylinder 23 is provided with a plurality of permanent magnet mounting grooves 27 for mounting the permanent magnets 3, the permanent magnet mounting grooves 27 are internally provided with permanent magnet heat dissipation openings 28, and the permanent magnet heat dissipation openings 28 are communicated with the air duct 26; when air flow is input into the air duct 26, the air flow can enter the permanent magnet installation groove 27, so that the heat of the permanent magnet 3 is taken away by the air flow, and the heat dissipation effect of the permanent magnet 3 is further improved.
A first heat dissipation hole corresponding to the permanent magnet installation groove 27 is formed in the permanent magnet 3, a permanent magnet fixing cover 29 is covered on the permanent magnet installation groove 27, a second heat dissipation hole 30 corresponding to the first heat dissipation hole is formed in the permanent magnet fixing cover 29, and a clamping ring 300 clamped in the first heat dissipation hole is arranged on one side, close to the permanent magnet 3, of the permanent magnet fixing cover 29; when the heat of permanent magnet 3 was taken away to the air current, because permanent magnet fixed cover 29 is provided with second louvre 30 for the heat that the permanent magnet 3 was taken away to the air current contacts with stator winding section of thick bamboo 20, makes partial heat carry out the heat transfer through stator winding section of thick bamboo 20 and water circulation water-cooling chamber fast, makes inside heat conduct fast, and the radiating efficiency is high, and whole permanent magnet fixed cover 29 can be dismantled in addition, so that change permanent magnet 3, be convenient for maintain.
The diameter of the shaft hole 24 is larger than that of the rotating shaft 4, a plurality of first toothed rings 31 are arranged on the inner walls of the two ends of the shaft hole 24, and second toothed rings 32 corresponding to the first toothed rings 31 are arranged on the outer walls of the two ends of the rotating shaft 4, so that a gap is formed between the rotating shaft 4 and the inner wall of the shaft hole 24 while the rotating shaft 4 is clamped in the shaft hole 24, and the gap is communicated with the air duct 26; the cooperation of first ring gear 31 and second ring gear 32 can make pivot 4 stabilize in shaft hole 24, and the accessible clearance simultaneously takes away inside heat through wind channel 26, reduces the inside heat of motor, prevents that high temperature from influencing the motor life-span.
It should be noted that the permanent magnet 3, the permanent magnet mounting groove 27 and the permanent magnet fixing cover 29 in this embodiment are all provided with locking holes, so that the permanent magnet 3 and the permanent magnet fixing cover 29 are fixed in the permanent magnet mounting groove 27 through bolts, and can be conveniently detached and maintained.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (9)
1. A direct drive permanent magnet electric machine, comprising:
the motor water-cooling shell assembly comprises a motor shell (1) and a water-cooling sealing cylinder (15), a motor cavity is formed in the motor shell (1), the water-cooling sealing cylinder (15) is inserted in the motor cavity, and a water circulation water-cooling cavity is formed between the outer wall of the water-cooling sealing cylinder (15) and the inner wall of the motor cavity so as to cool the motor shell (1) and the water-cooling sealing cylinder (15) by water cooling;
the stator winding cylinder (20) is arranged in the water-cooling sealing cylinder (15) in a penetrating mode, a winding groove (22) is formed in the inner wall of the stator winding cylinder (20), copper wires are wound through the winding groove (22), and the outer wall of the stator winding cylinder (20) is in contact with the inner wall of the water-cooling sealing cylinder (15) so that heat of the stator winding cylinder (20) is conducted to the water-cooling sealing cylinder (15);
the air-cooled rotor assembly (21) is arranged in the stator winding barrel (20), the air-cooled rotor assembly (21) comprises a permanent magnet installation barrel (23), a plurality of permanent magnets (3) are detachably installed on the circumference surrounding the permanent magnet installation barrel (23), a shaft hole (24) penetrates through the center shaft of the permanent magnet installation barrel (23), a rotating shaft (4) is connected in the shaft hole (24) in a clamping mode, air grooves (25) are formed in two ends of the permanent magnet installation barrel (23), air ducts (26) communicated with each other are formed in the air grooves (25) in the two ends of the permanent magnet installation barrel, the air ducts (26) are used for inputting air flow, and the air ducts (26) are respectively communicated with the shaft hole (24) and the permanent magnets (3) so that the heat of the permanent magnet installation barrel (23) is cooled through air cooling while being cooled through a water-cooled sealing barrel (15);
the outer wall of the permanent magnet installation barrel (23) is provided with a plurality of permanent magnet installation grooves (27) used for installing the permanent magnets (3), permanent magnet radiating holes (28) are formed in the permanent magnet installation grooves (27), first radiating holes corresponding to the permanent magnet installation grooves (27) are formed in the permanent magnets (3), and the permanent magnet radiating holes (28) are communicated with the air duct (26).
2. The direct-drive permanent magnet motor is characterized in that the water-cooling sealing cylinder (15) comprises two end rings (16), a sealing ring (17) is sleeved on the outer circumference of each end ring (16), a plurality of water-cooling fins (18) are arranged between the two end rings (16), water through holes (19) are formed in the water-cooling fins (18), a plurality of independent water cooling grooves are formed by enclosing the two end rings (16), the water-cooling fins (18) and the inner wall of the motor shell (1), and the independent water cooling grooves are communicated through the water through holes (19), so that the water circulation water cooling cavities are formed among the water cooling grooves.
3. The direct-drive permanent magnet motor according to claim 2, wherein a plurality of radiating fins are arranged on the outer wall of the motor casing (1), a water inlet (13) is formed in the upper end of the outer wall of the motor casing (1), a water outlet (14) is formed in one side of the outer wall of the motor casing (1), the water inlet (13) is communicated with one of the water cooling tanks, and the water outlet (14) is communicated with one of the water cooling tanks.
4. The direct-drive permanent magnet motor according to claim 1, wherein a permanent magnet fixing cover (29) is covered on the permanent magnet mounting groove (27), a second heat dissipation hole (30) corresponding to the first heat dissipation hole is formed in the permanent magnet fixing cover (29), and a snap ring (300) clamped in the first heat dissipation hole is arranged on one side, close to the permanent magnet (3), of the permanent magnet fixing cover (29).
5. The direct-drive permanent magnet motor according to claim 1, wherein the diameter of the shaft hole (24) is larger than that of the rotating shaft (4), a plurality of first toothed rings (31) are arranged on the inner walls of the two ends of the shaft hole (24), and second toothed rings (32) corresponding to the first toothed rings (31) are arranged on the outer walls of the two ends of the rotating shaft (4), so that a gap is formed between the rotating shaft (4) and the inner wall of the shaft hole (24) while the rotating shaft (4) is clamped in the shaft hole (24), and the gap is communicated with the air duct (26).
6. The direct-drive permanent magnet motor according to claim 5, wherein one end of the rotating shaft (4) is an output end, and the other end of the rotating shaft is provided with the air inlet component (2), so that air flow enters the air duct (26) through the air inlet component (2).
7. A direct drive permanent magnet machine according to claim 6, characterized in that the air intake assembly (2) comprises:
the filter cover (5) is used for filtering dust of the air flow, and the filter cover (5) is installed on the end face of the motor shell (1);
the air injection assembly is used for inputting airflow into the air groove (25) at a high speed so as to enable the airflow to rapidly enter the air channel (26), the air injection assembly is installed between the filter cover (5) and the motor shell (1), the rotating shaft (4) penetrates through the air injection assembly, and the rotating shaft extends into the filter cover (5);
and the fan blades (6) are positioned between the filter cover (5) and the air spraying assembly, and the fan blades (6) are arranged on the rotating shaft (4) so that the fan blades (6) and the rotating shaft (4) rotate synchronously.
8. The direct-drive permanent magnet motor according to claim 7, wherein the air injection assembly comprises a mounting seat (7) and an air injection ring (10) arranged in the mounting seat (7), the mounting seat (7) is inserted in the filter cover (5), a bearing (9) connected with the rotating shaft (4) is arranged at the center of the mounting seat (7), at least two air inlet grooves (8) are formed in the mounting seat (7), a middle hole (12) corresponding to the bearing (9) is formed in the air injection ring (10), at least two air injection channels (11) corresponding to the air inlet grooves (8) are formed in the air injection ring (10), and the air injection channels (11) correspond to the air grooves (25).
9. The direct-drive permanent magnet motor according to claim 8, wherein the air injection duct (11) is protruded upward relative to the air injection ring (10), an air injection hole (33) is formed in the air injection duct (11), and an inclined surface (34) is formed on one side of the air injection hole (33) far away from one end of the fan blade (6) so that the aperture of the air injection hole (33) is gradually narrowed from the fan blade (6) to the air groove (25).
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| CN202210568984.8A CN114665684B (en) | 2022-05-24 | 2022-05-24 | Direct-drive permanent magnet motor |
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| CN202210568984.8A CN114665684B (en) | 2022-05-24 | 2022-05-24 | Direct-drive permanent magnet motor |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262013A (en) * | 1999-03-09 | 2000-09-22 | Mitsubishi Electric Corp | Vehicle ac generator |
| JP2007020337A (en) * | 2005-07-08 | 2007-01-25 | Komatsu Ltd | Cooling structure for electric motor, and construction machine vehicle provided with the electric motor |
| CN101917103A (en) * | 2010-07-02 | 2010-12-15 | 浙江蓝翔机电设备制造有限公司 | Permanently-magnetic synchronous heat-stretching roller motor |
| CN202076876U (en) * | 2011-05-16 | 2011-12-14 | 张金锋 | Liquid-cooled motor and shell thereof |
| CN205092731U (en) * | 2015-10-14 | 2016-03-16 | 北汽福田汽车股份有限公司 | Driving motor and have its vehicle |
| CN106300778A (en) * | 2016-08-02 | 2017-01-04 | 天津飞旋科技研发有限公司 | The pure air-cooled heat dissipation structure of magnetic suspension motor of impeller one |
| CN211266684U (en) * | 2017-10-24 | 2020-08-14 | 汉宇集团股份有限公司 | Permanent magnet motor with impeller arranged on end plate and electric vehicle using same |
| CN111817499A (en) * | 2019-04-11 | 2020-10-23 | 日本电产株式会社 | Drive device |
| CN113904469A (en) * | 2021-06-09 | 2022-01-07 | 哈尔滨理工大学 | Double inner-cooling type high-speed induction motor with axial multi-section rotor chute |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI401864B (en) * | 2009-07-29 | 2013-07-11 | Joy Ride Tech Co Ltd | A motor with internal thermal glue |
| JP2014220901A (en) * | 2013-05-08 | 2014-11-20 | 三菱電機株式会社 | Permanent magnet built-in type rotary electric machine |
| CN207664822U (en) * | 2017-12-28 | 2018-07-27 | 深圳市安托山特种机电有限公司 | A kind of magneto |
| CN113036990A (en) * | 2019-12-09 | 2021-06-25 | 中车永济电机有限公司 | Ventilation cooling structure of permanent magnet motor |
-
2022
- 2022-05-24 CN CN202210568984.8A patent/CN114665684B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262013A (en) * | 1999-03-09 | 2000-09-22 | Mitsubishi Electric Corp | Vehicle ac generator |
| JP2007020337A (en) * | 2005-07-08 | 2007-01-25 | Komatsu Ltd | Cooling structure for electric motor, and construction machine vehicle provided with the electric motor |
| CN101917103A (en) * | 2010-07-02 | 2010-12-15 | 浙江蓝翔机电设备制造有限公司 | Permanently-magnetic synchronous heat-stretching roller motor |
| CN202076876U (en) * | 2011-05-16 | 2011-12-14 | 张金锋 | Liquid-cooled motor and shell thereof |
| CN205092731U (en) * | 2015-10-14 | 2016-03-16 | 北汽福田汽车股份有限公司 | Driving motor and have its vehicle |
| CN106300778A (en) * | 2016-08-02 | 2017-01-04 | 天津飞旋科技研发有限公司 | The pure air-cooled heat dissipation structure of magnetic suspension motor of impeller one |
| CN211266684U (en) * | 2017-10-24 | 2020-08-14 | 汉宇集团股份有限公司 | Permanent magnet motor with impeller arranged on end plate and electric vehicle using same |
| CN111817499A (en) * | 2019-04-11 | 2020-10-23 | 日本电产株式会社 | Drive device |
| CN113904469A (en) * | 2021-06-09 | 2022-01-07 | 哈尔滨理工大学 | Double inner-cooling type high-speed induction motor with axial multi-section rotor chute |
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