CN208923964U - A kind of permanent magnet synchronous motor - Google Patents
A kind of permanent magnet synchronous motor Download PDFInfo
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- CN208923964U CN208923964U CN201821771019.6U CN201821771019U CN208923964U CN 208923964 U CN208923964 U CN 208923964U CN 201821771019 U CN201821771019 U CN 201821771019U CN 208923964 U CN208923964 U CN 208923964U
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- permanent magnet
- main shaft
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Abstract
The utility model discloses a kind of permanent magnet synchronous motors, including stator module, rotor assembly and electric-controlled plate.Shell is using interference fit connection on stator winding and stator, heat-conducting insulation material is smeared on stator winding and is contacted with inner surface of outer cover on stator, the heat of stator winding and heat-generating electronic elements can be quickly transmitted on upper shell, accelerate the heat dissipation of winding and electric-controlled plate.On magnet steel riveting to rotor core；Water-sealed bearing is provided on main shaft；Electric-controlled plate is fixed on inside the lower casing of motor by fastener, and the heat-generating electronic elements surface on electric-controlled plate is smeared heat-conducting insulation material and contacted with stator lower casing inner surface, and stator lower casing outer surface is provided with cooling fin, and radiator fan is fixed on main shaft.By process being simplified after the direct riveting to rotor core of magnet steel, being reduced costs, improve production efficiency, automated production degree is high.
Description
Technical field
The utility model relates to motor fields, and in particular to a kind of permanent magnet synchronous motor.
Background technique
Motor refers to that a kind of calutron that electric energy conversion or transmitting are realized according to the law of electromagnetic induction, main function are
Driving torque is generated, as electric appliance or the power source of various machinery.Motor can be divided into direct current by its structure and working principle
Machine, asynchronous machine and synchronous motor, and synchronous motor usually includes that permanent magnet synchronous motor, reluctance-synchronous machine and tape are same
Walk motor.
Currently, the energy efficiency indexes of motor are increasingly subject to the attention of consumer and environmental protection administration, common series excited machine, frequency conversion
Induction machine, direct-drive permanent-magnetism brushless motor are difficult to obtain further breakthrough in efficiency, therefore permanent magnet synchronous motor is cheap with its
Price and higher efficiency of energy utilization it is upper with the obvious advantage in competition.Permanent magnet synchronous motor can be with according to its rotor structure form
It is divided into permanent magnet surface-mount type and embedded permanent magnet, IPM synchronous motor structural strength is high, and salient pole is than greatly, being easy to weak magnetic
Expansion speed, while weak magnetic field operation is high-efficient, suitable for the application of low speed and high speed alternate run, meanwhile, permanent magnet it is reliable
The fixed high low speed alternate run of motor is a basic guarantee of reliability.
Existing permanent magnet synchronous motor substantially uses totally-enclosed structure, and generally existing heat dissipation difficult problem is be easy to cause
Motor internal temperature is too high, to reduce the service life of motor, What is more directly results in motor and burn.Meanwhile especially
It is in the more moist working environment of rainwater, the phenomenon that causing motor to burn due to motor inner inlet also occurs often.
Application No. is the patents of CN201720227782.1 to disclose a kind of permasyn morot magnetic steel embedded rotor,
Rotor includes main shaft, rotor core and the magnet steel being embedded in rotor core, rotor core include be arranged in the axial direction it is more
Segment unit iron core is equipped with multiple straight troughs with the number of poles of permasyn morot at integral multiple on every segment unit iron core, multiple
The circumferentially spaced distribution of straight trough, straight trough extend through the both ends of the surface on the axis direction of every segment unit iron core, every segment unit
Straight trough quantity on iron core is equal, and along the axis extending direction of rotor core, the straight trough one on adjacent two segment units iron core is a pair of
It should be arranged, and the straight trough of adjacent two segment units iron core corresponding position is staggered an angle or distance to same direction, magnet steel is embedded
In straight trough.Magnet steel in the patent has been completed to magnetize and the magnetic steel magnetic pole in each straight trough when being embedded in rotor core
It needs to be arranged in advance, increases set-up time and difficulty.
Application No. is the applications of CN201710584169.X to disclose a kind of electromechanical integration permanent-magnet drive system, including outer
Shell has winding stator core, rotor core, shaft, deceleration system, output shaft, acceleration system, brake axle, brake；There is winding
Stator core, rotor core, shaft, deceleration system and acceleration system are respectively provided with inside the shell, and brake is mounted on the outer of shell
On side wall；There is winding stator core to be connected on outer casing inner wall, rotor core has been set in winding stator core, shaft socket
In in rotor core；Deceleration system is planetary reduction systems, and acceleration system is planet acceleration system, is provided with permanent magnetism in rotor
Body.The drive system of this application gathers deceleration system, acceleration system and electric system inside the shell simultaneously, so that should
Apply for that volume shared by structure is smaller, structure is simple, cost is lower, failure rate is low, effectively improves system effectiveness.This application is described defeated
Lip-type packing is provided between shaft and the right end cap and between the brake axle and the left end cap for preventing
Extraneous water enters in drive system, but the waterproof when cooperation loosens between lip-type packing and right end cap, left end cap
Effect can be deteriorated.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of the utility model is to provide a kind of permanent magnet synchronous motor, by by magnetic
After the direct riveting to rotor core of steel, process is simplified, is reduced costs, improves production efficiency, automated production degree
It is high.On heat-generating electronic elements surface and stator winding on electric-controlled plate smear heat-conducting insulation material respectively with shell on stator and calmly
Sub- lower casing inner surface contact, the heat of stator winding and heat-generating electronic elements can be quickly transmitted on upper shell, be accelerated
The heat dissipation of winding and electric-controlled plate, while the throw rijng being arranged on main shaft can prevent water from entering inside motor, extend motor
Service life.
To realize that above-mentioned purpose of utility model, the technical solution that the utility model is taken are as follows:
A kind of permanent magnet synchronous motor, including stator module, rotor assembly and electric-controlled plate, the stator module include on stator
Shell, stator lower casing and it is placed in the stator winding on the stator in shell, the rotor assembly includes main shaft, is set in institute
The magnet steel stating the rotor core on main shaft, being embedded in the rotor core, the rotor core include along its axis extension side
To the multilevel-cell iron core set gradually, it is in close contact between the adjacent face of unit iron core described in adjacent two layers, the rotor
Iron core is placed in the center of the stator winding；
The rotor assembly further includes the bearing for being set in the main shaft both ends, the bearing include the first water-sealed bearing and
Second water-sealed bearing, the rotor core are arranged between first water-sealed bearing and the second water-sealed bearing, and described first is anti-
Submerged bearing is fixedly connected in the stator lower casing, and second water-sealed bearing is fixedly connected on the stator in shell；
Several straight troughs are arranged in the circumferential edge of the rotor core, and the straight trough is axially penetrated through along the rotor core
The entire rotor core, for the magnet steel riveting in the straight trough, the height of the magnet steel is greater than the depth of the straight trough, magnetic
On the direct riveting to rotor core of steel, process is simplified, is reduced costs, improve production efficiency, automated production degree is high；
The electric-controlled plate is fixed on the inside bottom wall of the stator lower casing by fastener, and lead is arranged on stator winding
Terminal is connect with the electric-controlled plate, shockproof for dust and moisture all to play good guarantor after electric-controlled plate is smeared using prevention material
Shield effect.
Preferably, outwardly extending waterproof flange collar is set in the bottom wall outer of shell on the stator, is covered on the main shaft
Equipped with the throw rijng cooperated with the waterproof flange collar, waterproof flange collar described in the water dumping ring seal.Throw rijng is mounted on main shaft and stretches
Out on stator shell exposed parts, the throw rijng is fixed on main shaft and main shaft is turned under the driving of rotor core
It is dynamic, water and dust entering inside motor by waterproof flange collar are prevented, motor service life can be improved with water proof and dust proof.
Preferably, the second bearing mounting portion to extend internally is set in the inside bottom wall of shell on the stator, described
Two axle bearing mount portions are for installing second water-sealed bearing, and setting extends internally in the inside bottom wall of the stator lower casing
For installing the first bearing mounting portion of the first water-sealed bearing.The bottom setting of the second bearing mounting portion extends internally close
Flange collar is sealed, sealing element is set between the inner wall and the main shaft of the sealing flange collar.Sealing element is for closing the second bearing
The place that mounting portion is communicated with the outside of shell on stator prevents outside water and impurity from entering in stator winding by main shaft.
Preferably, the diameter of the waterproof flange collar is greater than the diameter of the sealing flange collar.
Preferably, coated with thermally conductive insulation material on the contact surface that the stator winding is contacted with outer shell bottom wall on the stator
Material, the heat of stator winding can be quickly transmitted on stator on shell, accelerate the heat dissipation of stator winding, extend stator
The service life of winding.Electronic component is set on the electric-controlled plate, and the bottom wall of the electronic component and the stator lower casing connects
Coated with thermally conductive insulating materials in contacting surface contacts after being fixedly connected with electric-controlled plate with stator lower casing with lower casing inside bottom wall, can
The heat of electronic component to be quickly transmitted on stator on shell.
Preferably, the stator lower casing bottom wall outer surface is provided with cooling fin, and cooling fin increasing heat radiation area ensure that
The radiating requirements of electric-controlled plate.
Preferably, shell is connected with stator lower casing using fastener on stator, and junction is provided with 2 sealing rings.
Preferably, the radiation air being set on main shaft is additionally provided between first water-sealed bearing and the rotor core
Fan.Radiator fan during rotation radiates to electric-controlled plate and stator winding in rotor core, prevents motor internal temperature
It is excessively high.
Preferably, the radiator fan includes close to the fan main body of the rotor core and close to the first waterproof axis
The reinforcer held, the fan main body and the reinforcer are integrally formed.
Preferably, the fan blade of rotor core described in several faces, the reinforcement is arranged in the fan main body side
The other side of the fan main body is arranged in part, several are arranged on the reinforcer and adds along what the rotor core radially extended
Strengthening tendons.Reinforcing rib plays a supportive role to fan main body, while increasing the intensity of radiator fan, ensure that radiator fan rotation process
In stability.
Preferably, the angle between each reinforcing rib and the main shaft is equal and is acute angle.Reinforcing rib and main shaft
It is at an acute angle to guarantee to generate certain air quantity in reinforcer rotation process between fan main body and reinforcer, further to
Region between two water-sealed bearings and radiator fan cools down, improving radiating effect.
Preferably, the fixed position of the riveting of each magnet steel and the rotor core is no less than 1.
Preferably, the riveting fixed bit of each magnet steel and the rotor core is set to 1, and riveting fixed bit installs
It sets on the rotor core surface of straight trough center face, ensure that riveter during the riveting to magnet steel and rotor core
The uniformity of stressed magnetic steel.
Preferably, the riveting fixed bit of each magnet steel and the rotor core is set to even number and relative to the magnetic
The central symmetry of steel is distributed.The fixed position of multiple rivetings ensure that the stability of magnet steel and rotor core.
Preferably, the main shaft, rotor core, magnet steel, radiator fan and bearing are with the main shaft using interference fit
Connection.
Preferably, several fins, the rotor core and the radiator fan are set on the outer peripheral surface of the main shaft
Inner ring in setting with the fin cooperation groove.The binding force between main shaft and each component, anti-rotation stop can be improved in fin
Sub- iron core loosens.
Preferably, several heat release holes are arranged in the rotor core side opposite with the radiator fan.Heat release hole exists
Increase rate of heat dispation in radiator fan rotation process.
Preferably, the heat release hole is arranged between every two straight trough.
Compared with the existing technology, the utility model achieves beneficial technical effect:
1, by the direct riveting to rotor core of magnet steel, process is simplified, is reduced costs, production efficiency is improved, from
Dynamic metaplasia stages of labor degree is high.
2, radiator fan can accelerate the heat flowing velocity inside motor after motor operating, keep internal heat substantially equal
It is even, localized hyperthermia's phenomenon is avoided the occurrence of, accelerates heat dissipation, extends the service life of motor.The reinforcer in fan main body
Several of upper setting play a supportive role to fan main body along the reinforcing rib that the rotor core radially extends, while increasing heat dissipation
The intensity of fan ensure that the stability in radiator fan rotation process.Simultaneously reinforcing rib and main shaft it is at an acute angle can guarantee plus
Certain air quantity is generated between fan main body and reinforcer in strong part rotation process, further to the second water-sealed bearing and heat dissipation
Region between fan cools down, improving radiating effect.
3, knot can be improved in the outer peripheral surface of main shaft and rotor core and radiator fan the interference fit increased fin in part
With joint efforts, prevent rotor core from loosening.
4, throw rijng is mounted on the exposed parts that main shaft stretches out shell on stator, the inner wall of the sealing flange collar and the master
Sealing element is set between axis, and the throw rijng is fixed on main shaft and main shaft is rotated under the driving of rotor core, is prevented
Water and dust entering inside motor by waterproof flange collar, sealing element are outer on the second bearing mounting portion and stator for closing
The place that the outside of shell communicates can improve motor service life with water proof and dust proof.
5, coated with thermally conductive insulating materials can be on the contact surface that the stator winding is contacted with outer shell bottom wall on the stator
The heat of stator winding is quickly transmitted on stator on shell, the heat dissipation of stator winding is accelerated, extends stator winding
Service life.Coated with thermally conductive insulating materials on the bottom wall contact surface of the electronic component and the stator lower casing, can will be electric
The heat of subcomponent is quickly transmitted on stator on shell.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the explosion of permanent magnet synchronous motor of the utility model；
Fig. 2 is a kind of cross-sectional view along main shaft axial direction of permanent magnet synchronous motor of the utility model；
Fig. 3 is the overall schematic at one visual angle of rotor assembly in a kind of permanent magnet synchronous motor of the utility model；
Fig. 4 is the overall schematic at another visual angle of rotor assembly in a kind of permanent magnet synchronous motor of the utility model；
Fig. 5 is cross-sectional view of the rotor assembly in a kind of permanent magnet synchronous motor of the utility model along main shaft axial direction；
Fig. 6 is the rotor core top view in a kind of permanent magnet synchronous motor of the utility model；
Fig. 7 is the main shaft schematic diagram in a kind of permanent magnet synchronous motor of the utility model；
Fig. 8 is the stator member structure schematic diagram in a kind of permanent magnet synchronous motor of the utility model；
Fig. 9 be a kind of permanent magnet synchronous motor of the utility model in stator winding and stator on shell assembling schematic diagram；
Figure 10 is the structural schematic diagram of the stator winding in a kind of permanent magnet synchronous motor of the utility model；
Figure 11 is the structural schematic diagram of the stator lower casing in a kind of permanent magnet synchronous motor of the utility model；
Figure 12 is the structural schematic diagram of the electric-controlled plate in a kind of permanent magnet synchronous motor of the utility model.
Appended drawing reference:
1. rotor assembly；11. fin；12. main shaft；2. rotor core；21. straight trough；22. heat release hole；3. bearing；31. the
One water-sealed bearing；32. the second water-sealed bearing；4. radiator fan；41. fan main body；42. reinforcer；5. magnet steel；6. riveting is fixed
Position；7. stator module；71. shell on stator；711. waterproof flange collars；712. sealing flange collars；713. second bearing mounting portions；
72. stator lower casing；721. cooling fin；722. first bearing mounting portions；73. stator winding；731. lead terminal；74. sealing
Circle；8. throw rijng；81. sealing element；9. electric-controlled plate；91. electronic component.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments to the present invention
It is further elaborated, but the scope of protection of present invention is not limited to following specific embodiments.
As illustrated in fig. 1 and 2, a kind of permanent magnet synchronous motor, including stator module 7, rotor assembly 1 and electric-controlled plate 9, it is described fixed
Sub-component 7 is including shell 71, stator lower casing 72 on stator and is placed in the stator winding 73 on the stator in shell 71, stator
Shell 71 is using interference fit connection on winding 73 and stator.Shell 71 and stator lower casing 72 are connected using fastener on stator
It connects, junction is provided with 2 sealing rings 74.
As shown in fig. 3 to 7, rotor assembly 1 includes main shaft 12, the rotor core 2 being set on the main shaft 12, is embedded in
Magnet steel 5 in the rotor core 2 and the bearing 3 for being set in 12 both ends of main shaft, the rotor core 2 includes along its axis
The multilevel-cell iron core that extending direction is set gradually is in close contact between the adjacent face of unit iron core described in adjacent two layers, institute
Several straight troughs 21 are arranged in the circumferential edge for stating rotor core 2, and the straight trough 21 is entire along axially penetrating through for the rotor core 2
The rotor core 2, for 5 riveting of magnet steel in the straight trough 21, the height of the magnet steel 5 is greater than the depth of the straight trough 21
Degree, on magnet steel 5 riveting to rotor core 2 after magnetize again, it is ensured that the installation quality of magnet steel 5 reduces human error, side
Just automated production is carried out.The bearing 3 includes the first water-sealed bearing 31 and the second water-sealed bearing 32, and the rotor core 2 is set
It sets between first water-sealed bearing 31 and the second water-sealed bearing 32, first water-sealed bearing 31 and the rotor core 2
Between be additionally provided with the radiator fan 4 being set on main shaft 12.Radiator fan 4 rotor core 2 during rotation to its into
Row heat dissipation, prevents temperature of rotor excessively high.The main shaft 12, rotor core 2, magnet steel 5, radiator fan 4 and bearing 3 with the master
Axis 12 is using interference fit connection.First water-sealed bearing 31 is fixedly connected in the stator lower casing 72, and described second
Water-sealed bearing 32 is fixedly connected on the stator in shell 71.
As shown in Fig. 2,11,12, the electric-controlled plate 9 is fixed in the bottom wall of the stator lower casing 72 by fastener
Side, setting lead terminal 731 connect with the electric-controlled plate 9 on stator winding 73, right after the use prevention material smearing of electric-controlled plate 9
It all plays a very good protection in dust and moisture is shockproof.
As shown in Fig. 2,8,9, outwardly extending waterproof flange collar 711 is set in the bottom wall outer of shell 71 on the stator,
The throw rijng 8 with the waterproof flange collar 711 cooperation is arranged on the main shaft, the throw rijng 8 closes the waterproof flange collar
711.Throw rijng 8 includes that the intermediate tie portion being arranged from the center of circle to edge direction, border seal portion, intermediate tie portion and edge are matched
Horizontal closure between conjunction portion, intermediate tie portion and main shaft interference fit connect, and border seal portion is for closing waterproof flange collar
711 side-wall outer side, horizontal closure is for closing waterproof flange collar 711 along the open end of main shaft axial direction.Throw rijng 8 is mounted on master
Axis stretches out the exposed parts of shell 71 on stator, and the throw rijng 8 is fixed on main shaft and main shaft is under the driving of rotor core
It is rotated, prevents water and dust entering inside motor by waterproof flange collar 711, can improved motor with water proof and dust proof and use
Service life.
As shown in figs. 9 and 11, the second bearing installation to extend internally is set in the inside bottom wall of shell 71 on the stator
Portion 713, the second bearing mounting portion 713 is for installing second water-sealed bearing 32, the bottom wall of the stator lower casing 72
The first bearing mounting portion 722 for being used to install the first water-sealed bearing 31 that setting extends internally on inside.The second bearing peace
The sealing flange collar 712 to extend internally is arranged in the bottom in dress portion 713, and the diameter of the waterproof flange collar 711 is greater than the sealing flange collar
712 diameter.Sealing element 81 is set between the inner wall and the main shaft of the sealing flange collar 712, sealing element 81 is for closing institute
State the place that second bearing mounting portion 713 is communicated with the outside of shell 71 on stator, prevent outside water and impurity by main shaft into
Enter in stator winding 73.
As shown in Figures 9 and 10, it is coated on the stator winding 73 and the contact surface that 71 bottom wall of shell contacts on the stator
The heat of stator winding 73 can quickly be transmitted on stator on shell 71, accelerate stator winding 73 by heat-conducting insulation material
Heat dissipation, extend the service life of stator winding 73.Electronic component 91, the electronic component 91 are set on the electric-controlled plate 9
It is with coated with thermally conductive insulating materials on the bottom wall contact surface of the stator lower casing 72, electric-controlled plate 9 and stator lower casing 72 is fixed
It contacts, the heat of electronic component 91 can be quickly transmitted on stator on shell 71 with lower casing inside bottom wall after connection.
As shown in Figure 1, the 72 bottom wall outer surface of stator lower casing is provided with cooling fin 721, the increase heat dissipation of cooling fin 721
Area ensure that the radiating requirements of electric-controlled plate 9.
As shown in figure 3, the radiator fan 4 includes close to the fan main body 41 of the rotor core 2 and close to described the
The reinforcer 42 of one water-sealed bearing 31, the fan main body 41 and the reinforcer 42 are integrally formed.The fan main body 41 1
The fan blade of rotor core 2 described in several faces is arranged in side, and the another of the fan main body 41 is arranged in the reinforcer 42
Several reinforcing ribs radially extended along the rotor core 2 are arranged on the reinforcer 42 in side.Reinforcing rib is to fan main body
41 play a supportive role, while increasing the intensity of radiator fan 4, ensure that the stability in 4 rotation process of radiator fan.Each institute
It is equal and be acute angle to state angle between reinforcing rib and the main shaft 12.Reinforcing rib with main shaft 12 is at an acute angle can guarantee to reinforce
Certain air quantity is generated in 42 rotation process of part between fan main body 41 and reinforcer 42, further to the second water-sealed bearing 32
Region between radiator fan 4 cools down, improving radiating effect.
As shown in fig. 6, the fixed position 6 of riveting of each magnet steel 5 and the rotor core 2 is no less than 1.This implementation
Example is preferred, and the fixed position 6 of riveting of each magnet steel 5 and the rotor core 2 is 1, and the fixed position 6 of riveting is arranged
On 2 surface of rotor core of 21 center face of straight trough, it ensure that riveter in the riveting mistake to magnet steel 5 and rotor core 2
The uniformity of 5 stress of magnet steel in journey.
The outer ring of first water-sealed bearing 31 and the second water-sealed bearing 32 is separately fixed at first bearing mounting portion 722 and second
713 in axle bearing mount portion, electric-controlled plate 9 is connect with motor lead-out wire, and motor lead-out wire and 9 link position of electric-controlled plate carry out waterproof and prevent
Dirt sealing, control panel control stator winding 73 and work, and rotor core 2 starts turning under the action of stator winding 73, while band
Inner ring, main shaft 12, radiator fan 4, the throw rijng 8 of dynamic first water-sealed bearing 31 and the second water-sealed bearing 32 are rotated, and are realized
The work of rotor.The application is by 5 direct riveting to rotor core 2 of magnet steel, and without will magnetize, the permanent magnet after being saturated leads to
It crosses elastic element to be pressed in rotor core 2, avoiding the occurrence of permanent magnet after magnetizing itself has that suction caused by magnetism is big, dress
With the big problem of difficulty, process is simplified, is reduced costs, improve production efficiency, automated production degree is high.Simultaneously by magnetic
It magnetizes again after on steel 5 riveting to rotor core 2, both ensure that the installation quality of permanent magnet, in turn avoid due to adjacent magnetic
The pole N, S of steel 5 needs to be staggered installation of the phenomenon that artificial installation error of appearance, improves the accuracy of installation, facilitates progress certainly
Dynamic metaplasia produces.
Embodiment 2
The embodiment only describes and the difference of above-described embodiment, remaining technical characteristic is same as the previously described embodiments.?
In the present embodiment, the riveting of each magnet steel 5 and the rotor core 2 fixes position 6 for even number and relative to the magnetic
The central symmetry of steel 5 is distributed.The fixed position 6 of multiple rivetings ensure that the stability of magnet steel 5 and rotor core 2.
Embodiment 3
The embodiment only describes and the difference of above-described embodiment, remaining technical characteristic is same as the previously described embodiments.?
In the present embodiment, several fins 11, the rotor core 2 and the radiator fan are set on the outer peripheral surface of the main shaft 12
Groove with the fin 11 cooperation is set in 4 inner ring.The combination between main shaft 12 and each component can be improved in fin 11
Power prevents rotor core 2 from loosening.
Embodiment 4
The embodiment only describes and the difference of above-described embodiment, remaining technical characteristic is same as the previously described embodiments.?
In the present embodiment, several heat release holes 22, the heat dissipation is arranged in the rotor core 2 side opposite with the radiator fan 4
Hole 22 is arranged between every two straight trough 21.Heat release hole 22 increases rate of heat dispation in 4 rotation process of radiator fan.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, although
It is used some specific terms in this specification, these terms are merely for convenience of description, does not constitute to utility model
Any restrictions.
Claims (10)
1. a kind of permanent magnet synchronous motor, including stator module, rotor assembly and electric-controlled plate, the stator module includes outer on stator
Shell, stator lower casing and be placed in the stator winding on the stator in shell, the rotor assembly include main shaft, be set in it is described
Rotor core on main shaft, the magnet steel being embedded in the rotor core, the rotor core are placed in the stator winding
Heart position, which is characterized in that
Outwardly extending waterproof flange collar is set in the bottom wall outer of shell on the stator, is arranged on the main shaft and prevents with described
The throw rijng of water flange collar cooperation, waterproof flange collar described in the water dumping ring seal；
The rotor assembly further includes the bearing for being set in the main shaft both ends, and the bearing includes the first water-sealed bearing and second
Water-sealed bearing, the rotor core are arranged between first water-sealed bearing and the second water-sealed bearing, the first waterproof axis
It holds and is fixedly connected in the stator lower casing, second water-sealed bearing is fixedly connected on the stator in shell；
Several straight troughs are arranged in the circumferential edge of the rotor core, and the straight trough is entire along axially penetrating through for the rotor core
The rotor core, for the magnet steel riveting in the straight trough, the height of the magnet steel is greater than the depth of the straight trough；
The electric-controlled plate is fixed on the inside bottom wall of the stator lower casing by fastener.
2. a kind of permanent magnet synchronous motor according to claim 1, which is characterized in that the inside bottom wall of shell on the stator
Upper that the second bearing mounting portion to extend internally is arranged, the second bearing mounting portion is for installing second water-sealed bearing, institute
The sealing flange collar to extend internally is arranged in the bottom for stating second bearing mounting portion, between the inner wall and the main shaft of the sealing flange collar
Sealing element is set.
3. a kind of permanent magnet synchronous motor according to claim 2, which is characterized in that the diameter of the waterproof flange collar is greater than institute
State the diameter of sealing flange collar.
4. a kind of permanent magnet synchronous motor according to claim 1, which is characterized in that on the stator winding and the stator
Coated with thermally conductive insulating materials on the contact surface of outer shell bottom wall contact, is arranged electronic component, the electronic component on the electric-controlled plate
With coated with thermally conductive insulating materials on the bottom wall contact surface of the stator lower casing.
5. a kind of permanent magnet synchronous motor according to claim 1, which is characterized in that the stator lower casing bottom wall outer surface
It is provided with cooling fin.
6. a kind of permanent magnet synchronous motor according to claim 1, which is characterized in that first water-sealed bearing and described turn
The radiator fan being set on main shaft is additionally provided between sub- iron core, the radiator fan includes the wind close to the rotor core
Main body and the reinforcer close to first water-sealed bearing are fanned, the fan main body and the reinforcer are integrally formed.
7. a kind of permanent magnet synchronous motor according to claim 6, which is characterized in that the fan main body side setting is several
The other side of the fan main body, the reinforcer is arranged in the fan blade of rotor core described in a face, the reinforcer
It is upper that several reinforcing ribs radially extended along the rotor core are set.
8. a kind of permanent magnet synchronous motor according to claim 1, which is characterized in that each magnet steel and the rotor iron
The fixed position of the riveting of core is no less than 1.
9. a kind of permanent magnet synchronous motor according to claim 8, which is characterized in that each magnet steel and the rotor iron
The riveting fixed bit of core is set to even number and is distributed relative to the central symmetry of the magnet steel.
10. a kind of permanent magnet synchronous motor according to claim 6, which is characterized in that set on the outer peripheral surface of the main shaft
Set several fins, the groove of setting and fin cooperation in the inner ring of the rotor core and the radiator fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771019.6U CN208923964U (en) | 2018-10-30 | 2018-10-30 | A kind of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821771019.6U CN208923964U (en) | 2018-10-30 | 2018-10-30 | A kind of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208923964U true CN208923964U (en) | 2019-05-31 |
Family
ID=66711037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821771019.6U Active CN208923964U (en) | 2018-10-30 | 2018-10-30 | A kind of permanent magnet synchronous motor |
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| Country | Link |
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| CN (1) | CN208923964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564408A (en) * | 2020-12-10 | 2021-03-26 | 擎风(扬州)新能源科技有限公司 | Sealed high-voltage direct-current brushless outer rotor fan |
-
2018
- 2018-10-30 CN CN201821771019.6U patent/CN208923964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564408A (en) * | 2020-12-10 | 2021-03-26 | 擎风(扬州)新能源科技有限公司 | Sealed high-voltage direct-current brushless outer rotor fan |
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