CN207652279U - A kind of permanent magnet synchronous motor - Google Patents
A kind of permanent magnet synchronous motor Download PDFInfo
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- CN207652279U CN207652279U CN201721882936.7U CN201721882936U CN207652279U CN 207652279 U CN207652279 U CN 207652279U CN 201721882936 U CN201721882936 U CN 201721882936U CN 207652279 U CN207652279 U CN 207652279U
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- hole
- permanent magnet
- motor
- stator core
- magnet synchronous
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Abstract
The utility model provides a kind of permanent magnet synchronous motor, and the setting of first through hole can effectively improve the heat dissipation of rotor on rotor core in motor, and permanent magnet is avoided nearby to influence the working performance of motor because local temperature is excessively high；In addition, being equipped with the second through-hole in motor between adjacent two pairs of permanent magnets, it on the one hand can ensure that permanent magnet loss of excitation, on the other hand second through-hole interval a pair of permanent magnet setting will not can improve the mechanical strength of motor there is a phenomenon where hot-spot；Moreover, being equipped with third through-hole between adjacent two pairs of permanent magnets, the second through-hole is located at the heat dissipation performance that the positive outside of third through-hole can further increase motor, improves the durable performance of motor；It is equipped with the 6th through-hole with the position of groove face on the first stator core in the permanent magnet synchronous motor of the utility model, the heat dissipation performance of motor can be further increased under the intensity for not influencing the first stator core, further increases the service life of motor；Have many advantages, such as that thermal diffusivity is good, reliability is high and high mechanical strength.
Description
Technical field
The utility model belongs to technical field of motors, more particularly, to a kind of permanent magnet synchronous motor.
Background technology
Motor (English:Electric machinery are commonly called as " motor ") refer to realizing electric energy according to the law of electromagnetic induction
Conversion or a kind of calutron transmitted.Letter M (old plant D) is used to indicate in circuit.Its main function is to generate drive
Dynamic torque, as electrical appliance or the power source of various machineries.Self-starting permanent magnet synchronous motor is increasingly by people's in recent years
Pay attention to, compared with asynchronous machine, operation stability is high, and efficiency and power factor are all higher than the asynchronous machine of equal-wattage grade,
Economical operation range is wide, is expected to replace asynchronous machine in many industrial applications.But due to the increase of working time, forever
The heat dissipation of magnetic-synchro motor becomes the important bottleneck for restricting motor application.
Invention content
In view of this, the utility model is directed to a kind of permanent magnet synchronous motor, to solve existing motor radiating effect
Difference influences the problems such as performance of motor.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of permanent magnet synchronous motor, including stator, with the rotor of stator cooperation and the shaft in setting portion in the rotor；
The stator includes stator core and stator winding, and the stator core includes the first stator core and the second stator
Iron core, the second stator core outside and the first stator core fit inside, the second stator core inside are equipped with
Coiling tooth for the stator winding around the home；
The rotor includes the rotor core being arranged on the inside of coiling tooth and even number permanent magnet, and the rotor core is equipped with
Installation through-hole, the permanent magnet fitting are arranged in installation through-hole；
The rotor core is equipped with multiple settings in first through hole, and the first through hole is respectively positioned on outside the permanent magnet
Side.
Further, the permanent magnet be circumferentially distributed using spindle central axis as axle center or each two permanent magnet it is V-shaped with
Spindle central axis spaced set；
Between adjacent two pairs of permanent magnets be equipped with the second through-hole, each second through-hole using spindle central axis as axle center circumferentially
Distribution.
Further, it is additionally provided with third through-hole between adjacent two pairs of permanent magnets, each third through-hole is with spindle central axis
It is circumferentially distributed for axle center.
Preferably, second through-hole is located at the positive outside of the third through-hole.
Preferably, it is arc-shaped on the inside of each coiling tooth.
Further, multiple grooves are equipped on the inside of first stator core, be equipped on the outside of second stator core with
The convex block of the groove engaging.
Further, on first stator core the 6th through-hole is equipped with the position of groove face.
Further, the coiling tooth includes winding section and locating part, and the winding section is for stator winding around the home.
Further, the winding section is in cuboid, the trapezoidal body of locating part.
Further, the locating part medial surface is arc-shaped.
Further, fourth hole is equipped in the winding section.
Further, on first stator core fifth hole is equipped with the position of the winding section face.
Further, it is additionally provided with the 6th through-hole on first stator core between adjacent fifth hole, each described 6th
Through-hole is circumferentially distributed using spindle central axis as axle center.
Preferably, the fifth hole is circular through hole, and the 6th through-hole is ellipse hole.
Further, multiple second grooves are equipped on the outside of first stator core.
Further, second groove vertical section is trapezoidal.
Further, the motor housing with second matching grooves is equipped on the outside of first stator core.
Further, the motor housing front end be equipped with drive end bearing bracket, the motor housing rear end be equipped with rear end cap, described turn
Axis stretches out the drive end bearing bracket.
Further, the length of the motor housing is 4-8 times of the first stator core thickness.
Further, the drive end bearing bracket is detachably connected with motor housing.
Further, the rear end cap is detachably connected with motor housing.
Preferably, the rear end cap and drive end bearing bracket are bolted with motor housing.
Further, it is equipped with ventilation opening on the rear end cap and drive end bearing bracket.
Preferably, the ventilation opening face setting on the rear end cap and drive end bearing bracket.
Preferably, the ventilation opening on the rear end cap is circumferentially distributed using spindle central axis as axle center.
Further, multiple fins are equipped on the outside of the motor housing.
Further, the fin is arranged in rotation direction.
Further, it is equipped with cold water flow space in the fin, is connected to inside each fin, the motor housing one
End is equipped with cold water inlet, and the other end is equipped with cooling water outlet.
Further, the motor housing and fin are made of aluminium alloy.
Further, the motor housing is arranged on motor cabinet, and motor cabinet is equipped with multiple mounting holes.
Further, the motor housing is arranged by multiple connecting shafts on motor cabinet.
Preferably, multiple connecting shafts are circumferentially distributed.
Preferably, the connection outer shaft sleeve is equipped with buffer spring.
Compared with the existing technology, permanent magnet synchronous motor described in the utility model has the advantage that：
(1) setting of first through hole can effectively improve on rotor core in permanent magnet synchronous motor described in the utility model
The heat dissipation of rotor avoids permanent magnet from nearby influencing the working performance of motor because local temperature is excessively high；In addition, adjacent two in motor
Between permanent magnet be equipped with the second through-hole, on the one hand can ensure permanent magnet will not there is a phenomenon where hot-spot loss of excitation, separately
On the one hand second through-hole interval a pair of permanent magnet setting can improve the mechanical strength of motor；Moreover, adjacent two pairs of permanent magnets it
Between be equipped with third through-hole, the second through-hole is located at the heat dissipation performance that the positive outside of third through-hole can further increase motor, improves electric
The durable performance of machine；Position in permanent magnet synchronous motor described in the utility model on first stator core with groove face is equipped with
6th through-hole can further increase the heat dissipation performance of motor under the intensity for not influencing the first stator core, and then further
Improve the service life of motor；Have many advantages, such as that thermal diffusivity is good, reliability is high and high mechanical strength；
(2) winding section facilitates to stator winding around the home in cuboid in permanent magnet synchronous motor described in the utility model,
And the setting of locating part can limit stator winding, fourth hole is equipped in winding section further to carry out motor
Heat dissipation；The 6th be equipped between the fifth hole and fifth hole that are equipped with the position of winding section face on first stator core is logical
Hole, heat scatters and disappears when can be further ensured that motor operation；
(3) in permanent magnet synchronous motor described in the utility model on the one hand the setting of motor housing can promote dissipating for motor
Heat, additionally is able to slow down and falls into dust etc. inside motor, is conducive to the normal operation for protecting motor when especially using outdoors；
Drive end bearing bracket and/or rear end cap are detachably connected with motor housing conveniently to be safeguarded and is overhauled to motor inner components, and is led to
The setting in air port also can be into raising heat dissipation effect；
Motor can be facilitated by being equipped with multiple fins in permanent magnet synchronous motor described in the utility model on the outside of motor housing
Heat dissipation, fin can further enhance heat dissipation effect in rotation direction setting, and it is easy to use cold that cold water flow space is equipped in fin
Water accelerates the heat dissipation of motor, has good heat dissipation effect；
(4) peace to motor cabinet when convenience on motor cabinet is in use motor is arranged in motor housing in permanent magnet synchronous motor
Dress, the in addition setting of buffer spring can slow down the vibrations generated when motor operation and noise, and there is simple in structure, design to close
The advantages that reason, good heat dissipation effect, high mechanical strength.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is the structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment；
Fig. 2 is the main structure diagram of permanent magnet synchronous motor in Fig. 1；
Fig. 3 is second of structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment；
Fig. 4 is the third structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment
Fig. 5 is the 4th kind of structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment；
Fig. 6 is the structural schematic diagram that permanent magnet synchronous motor does not add end cap in Fig. 5；
Fig. 7 is the 5th kind of structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment；
Fig. 8 be in Fig. 7 A-A to structural schematic diagram；
Fig. 9 is the 6th kind of structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment；
Figure 10 is the 7th kind of structural schematic diagram of the permanent magnet synchronous motor described in the utility model embodiment.
Reference sign：
1- stators；111- convex blocks；112- coiling teeth；The winding sections 1121-；1122- locating parts；1123- fourth holes；12-
First stator core；121- grooves；The second grooves of 122-；The 6th through-holes of 123-；124- fifth holes；2- rotors；21- iron cores；
211- installation through-holes；231- first through hole；The second through-holes of 232-；233- third through-holes；3- motor housings；4- shafts；The rear ends 51-
Lid；52- drive end bearing brackets；7- ventilation openings；8- fins；92- connecting shafts；92- buffer springs；93- motor cabinets.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of permanent magnet synchronous motor, as Figure 1-10 shows, including the rotor 2 and setting of stator 1 and the cooperation of stator 1 are turning
The shaft 4 at 2 middle part of son；
Stator 1 includes stator core and stator winding, and stator core includes the first stator core 12 and the second stator core
11,11 outside of the second stator core and 12 fit inside of the first stator core, 11 inside of the second stator core are equipped with for around the home
The coiling tooth 112 of stator winding；
Rotor 2 includes that the rotor core 21 and even number permanent magnet 22, rotor core 21 being arranged in 112 inside of coiling tooth are set
There are installation through-hole 211, the fitting of permanent magnet 22 to be arranged in installation through-hole 211；
Rotor core 21 is equipped with multiple settings in first through hole 231, and first through hole 231 is respectively positioned on 22 outside of permanent magnet.
Further, permanent magnet 22 is circumferentially distributed using 4 central shaft of shaft as axle center or each two permanent magnet 22 is V-shaped
With 4 central shaft spaced set of shaft；
The second through-hole 232 is equipped between adjacent two pairs of permanent magnets 22, each second through-hole 232 is using 4 central shaft of shaft as axle center
Circumferentially it is distributed.
Further, it is additionally provided with third through-hole 233 between adjacent two pairs of permanent magnets 22, each third through-hole 233 is with shaft 4
Central shaft is that axle center is circumferentially distributed.
Preferably, the second through-hole 232 is located at the positive outside of third through-hole 233.
Preferably, 112 inside of each coiling tooth is arc-shaped.
Further, the inside of the first stator core 12 is equipped with multiple grooves 121,11 outside of the second stator core be equipped with
The convex block 111 that groove 121 engages.
Further, on the first stator core 12 the 6th through-hole 124 is equipped with the position of 121 face of groove.
Further, coiling tooth 112 includes winding section 1121 and locating part 1122, and winding section 1121 is for stator around the home
Winding.
Further, winding section 1121 is in cuboid, 1122 trapezoidal body of locating part.
Further, 1122 medial surface of locating part is arc-shaped.
Further, fourth hole 1123 is equipped in winding section 1121.
Further, on the first stator core 12 fifth hole 124 is equipped with the position of 1121 face of winding section.
Further, it is additionally provided with the 6th through-hole 123 on the first stator core 12 between adjacent fifth hole 124, each 6th
Through-hole 123 is circumferentially distributed using 4 central shaft of shaft as axle center.
Preferably, fifth hole 124 is circular through hole, and the 6th through-hole 123 is ellipse hole.
Further, 12 outside of the first stator core is equipped with multiple second grooves 122.
Further, 122 vertical section of the second groove is trapezoidal.
Further, 12 outside of the first stator core is equipped with and 122 matched motor housing 3 of the second groove.
Further, 3 front end of motor housing is equipped with drive end bearing bracket 52, and 3 rear end of motor housing is equipped with rear end cap 51, and shaft 4 is stretched
Go out drive end bearing bracket 52.
Further, the length of motor housing 3 is 4-8 times of 12 thickness of the first stator core.
Further, drive end bearing bracket 52 is detachably connected with motor housing 3.
Further, rear end cap 51 is detachably connected with motor housing 3.
Preferably, rear end cap 51 and drive end bearing bracket 52 are bolted with motor housing 3.
Further, it is equipped with ventilation opening 7 on rear end cap 51 and drive end bearing bracket 52.
Preferably, 7 face of the ventilation opening setting on rear end cap 51 and drive end bearing bracket 52.
Preferably, the ventilation opening 7 on rear end cap 51 is circumferentially distributed using 4 central shaft of shaft as axle center.
Further, 3 outside of motor housing is equipped with multiple fins 8.
Further, fin 8 is arranged in rotation direction.
Further, cold water flow space is equipped in fin 8, the 8 inside connection of each fin, 3 one end of motor housing is equipped with cold
Water inlet, the other end are equipped with cooling water outlet.
Further, motor housing 3 and fin 8 are made of aluminium alloy.
Further, motor housing 3 is arranged on motor cabinet 93.
Further, motor housing 3 is arranged by multiple connecting shafts 92 on motor cabinet 93, and motor cabinet 93 is equipped with more
A mounting hole.
Preferably, multiple connecting shafts 92 are circumferentially distributed.
Preferably, it is arranged with buffer spring 92 outside connecting shaft 92.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of permanent magnet synchronous motor, it is characterised in that：Including stator (1), with the stator (1) cooperation rotor (2) and set
Set the shaft (4) in the middle part of rotor (2)；
The stator (1) includes stator core and stator winding, and the stator core includes the first stator core (12) and second
Stator core (11), the second stator core (11) outside and the first stator core (12) fit inside, described second
The coiling tooth (112) for the stator winding around the home is equipped on the inside of stator core (11)；
The rotor (2) includes the rotor core (21) and even number permanent magnet (22) being arranged on the inside of coiling tooth (112), described
Rotor core (21) is equipped with installation through-hole (211), and permanent magnet (22) the fitting setting is in installation through-hole (211)；
The rotor core (21) is equipped with multiple settings in first through hole (231), and the first through hole (231) is respectively positioned on described
On the outside of permanent magnet (22).
2. permanent magnet synchronous motor according to claim 1, it is characterised in that：The permanent magnet (22) is with shaft (4) center
Axis is that axle center is circumferentially distributed or each two permanent magnet (22) is V-shaped with shaft (4) central shaft spaced set；
The second through-hole (232) is equipped between adjacent two pairs of permanent magnets (22), each second through-hole (232) is with shaft (4) center
Axis is that axle center is circumferentially distributed.
3. permanent magnet synchronous motor according to claim 2, it is characterised in that：It is additionally provided between adjacent two pairs of permanent magnets (22)
Third through-hole (233), each third through-hole (233) are circumferentially distributed using shaft (4) central shaft as axle center.
4. permanent magnet synchronous motor according to claim 3, it is characterised in that：Second through-hole (232) is located at described the
The positive outside of three through-holes (233).
5. according to claim 1-4 any one of them permanent magnet synchronous motors, it is characterised in that：It is on the inside of each coiling tooth (112)
It is arc-shaped.
6. according to claim 1-4 any one of them permanent magnet synchronous motors, it is characterised in that：First stator core (12)
Inside is equipped with multiple grooves (121), and the convex block engaged with the groove (121) is equipped on the outside of second stator core (11)
(111)。
7. permanent magnet synchronous motor according to claim 6, it is characterised in that：On first stator core (12) and groove
(121) position of face is equipped with the 6th through-hole (124).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882936.7U CN207652279U (en) | 2017-12-28 | 2017-12-28 | A kind of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721882936.7U CN207652279U (en) | 2017-12-28 | 2017-12-28 | A kind of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207652279U true CN207652279U (en) | 2018-07-24 |
Family
ID=62876552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721882936.7U Active CN207652279U (en) | 2017-12-28 | 2017-12-28 | A kind of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207652279U (en) |
-
2017
- 2017-12-28 CN CN201721882936.7U patent/CN207652279U/en active Active
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