CN208272818U - Disc type permanent magnet synchronous electric motor - Google Patents
Disc type permanent magnet synchronous electric motor Download PDFInfo
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- CN208272818U CN208272818U CN201820656141.2U CN201820656141U CN208272818U CN 208272818 U CN208272818 U CN 208272818U CN 201820656141 U CN201820656141 U CN 201820656141U CN 208272818 U CN208272818 U CN 208272818U
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Abstract
The utility model discloses a kind of disc type permanent magnet synchronous electric motors, comprising: stator, base circle, rotor, drive end bearing bracket, rear end cap, rotary transformer, rotation become lid.The utility model uses axial magnetic circuit, shortens the axial length of motor, and the place that axial space is small and radial space is big is suitble to use.
Description
Technical field
The utility model relates to a kind of synchronous motors, specifically, are related to a kind of disc type permanent magnet synchronous electric motor.
Background technique
Existing motor magnetic circuit is all using radial magnetic circuit, and the stator winding of motor is circle distribution according to certain rules, stator
Winding is fixed in base.Motor permanent magnetic rotor is cylindrical body, and p-m rotor rotates in stator, output mechanical energy, realizes electricity
It can be converted into mechanical energy.
P-m rotor, stator due to axis direction it is long, so this electric machine structure be suitble to motor axial space it is big
Place use, smaller for space place can not then use.
Utility model content
The technical issues of the utility model is solved is to provide a kind of disc type permanent magnet synchronous electric motor, using axial magnetic circuit, contracting
The short axial length of motor is suitble to the place that axial space is small and radial space is big to use.
Technical solution is as follows:
A kind of disc type permanent magnet synchronous electric motor, comprising: stator, base circle, rotor, drive end bearing bracket, rear end cap, rotary transformer,
Rotation becomes lid；Drive end bearing bracket, rear end cap are bolted at the both ends of base circle, and stator is fixed on the inside of rear end cap, rotor peace
Between drive end bearing bracket, rear end cap；Rear end cap is provided with rear end cap axis hole in shaft core position, and rear end cap axis hole is provided with rear end cap axis
It holds, is provided with coil fixed groove on the inner wall on the outside of rear end cap axis hole；Stator includes: stator coil, stator core, stator
Iron core is provided with the wire casing of radially radial arrangement, and stator coil is mounted in wire casing, and stator core is fixed on coil and fixes
In groove；Rotor includes: shaft, rotor core, rotor field spider；Rotor field spider is provided with shaft connection through-hole at axle center, turns
Son is connected in shaft connection through-hole；Rotor field spider is provided with rotor core groove in inside；Rotor core is mounted on rotor iron
In core groove, permanent magnet is fixed on the outside of rotor core；Drive end bearing bracket is provided with drive end bearing bracket axis hole in shaft core position, in drive end bearing bracket axis hole
It is provided with drive end bearing bracket bearing；Shaft is mounted on drive end bearing bracket bearing and bearing of rear end cover；Rotary transformer is mounted on rotation and becomes lid
Inside, rotation become lid and are fixed on drive end bearing bracket.
Further, stator further include: stator core pressing ring, multiple stator punchings are fixed in stator core pressing ring, stator
Punching is provided with notches for wire, and multiple notches for wire are superimposed to form wire casing；Stator core pressing ring benefit is fixed by bolts to coil fixed ring
In connected in star.
Further, rotor core includes: permanent magnet retaining plate, permanent magnet, rotor punching, rotor core pressing ring；Rotor iron
Core bottom portion of groove is provided with rotor core fixing screwed hole, and rotor core pressing ring is mounted in rotor core groove, passes through long spiral shell
Nail is fixed in rotor core fixing screwed hole；Rotor punching is mounted in rotor core pressing ring, be provided between two magnetic poles every
Plate, permanent magnet are mounted on the outside of rotor punching, and permanent magnet retaining plate is arranged on the outside of permanent magnet, and permanent magnet retaining plate passes through screw
It is connected on rotor core pressing ring.
Further, keyway is provided in shaft connection through-hole；Shaft is provided with annular edge, setting on the left of annular edge at middle part
There are first bearing linkage section and power output section, power output section is located at the outside of first bearing linkage section；The right side of annular edge
It is disposed with rotor linkage section, second bearing linkage section, rotary transformer linkage section, rotor linkage section is provided with connecting key,
The end of rotary transformer linkage section is provided with rotary transformer connection screw thread hole；It is logical that rotor linkage section is sleeved on shaft connection
In hole, connecting key is plugged in connection keyway；First bearing linkage section is sleeved on bearing of rear end cover, after power output section is stretched out
The outside of end cap；Second bearing linkage section is sleeved on drive end bearing bracket bearing, and rotary transformer linkage section is located at the inside that rotation becomes lid；
Rotary transformer is fixed in rotary transformer connection screw thread hole using screw.
Further, rotary transformer includes resolver stator, and resolver stator is provided with input winding, output winding, becomes
Depressor stator is fixed on drive end bearing bracket using screw, and transformer rotor iron core is fixed on rotary transformer connection screw thread using screw
Kong Shang；Rotation becomes lid and is provided with outlet hole, and input winding, the output winding leading-out wire of resolver stator stretch out outlet hole；Rear end cap is set
It is equipped with fairlead, the lead-out wire of stator coil is stretched out from fairlead.
Further, coil fixed groove and rotor core groove are annular groove.
Further, rotor field spider is provided with bracket pressing ring concave station at axle center, and bracket pressing ring is mounted on bracket pressing ring concave station
Place, bracket pressing ring 37 are provided with pressing ring through-hole at middle part.
Further, rear end cap axis hole is fixed using bolt and internal bearing cover, and rear end cap is provided with flange on the outside.
Further, stator coil, wire casing, permanent magnet quantity determined by the grade logarithm of motor, multiple stator coils
It is arranged radially with permanent magnet.
Further, stator coil is using mush winding, stranded conductor and around embedding.
The utility model technical effect includes:
1, the utility model is using axial magnetic circuit, and the core length of motor is in radial direction, therefore motor can be made into
The radial disc type shape of axial shortening greatly, is applicable in axial distance very little very much, and the biggish place of radial space uses.
In the utility model, the stator winding of disc type permanent magnet synchronous electric motor is fixed on rear end cap, and stator winding is by certain
Rule is distributed in the plane of annulus, radial, reduces the axial length of stator to greatest extent.Rotor permanent magnet is fixed on
In the plane of annulus, a circular ring type disk is formed, stator and rotor form a Plane Rotation motor, reduce to greatest extent
The axial length of rotor.The magnetic circuit of motor is radial magnetic circuit in the prior art, and the magnetic circuit of the utility model is axial magnetic circuit, this
Structure shortens the axial length of motor, and the place that axial space is small and radial space is big is suitble to use.
2, in the utility model, the permanent magnet of p-m rotor uses surface mount, fixation, reduces the leakage field system of permanent magnet
Number improves permanent magnet utilization rate, increases air gap energy storage；Stator winding use mush winding, may be implemented stranded conductor and around
Embedding, reduces copper loss.It is to form electromagnetic field in a plane between stator and rotor, carries out energy conversion, shorten motor
Axial length.
3, the utility model is fast with starting speed, low-speed performance is good, overload capacity is strong, high-speed cruising is steady, speed regulation model
The advantages that wide, efficacious workaround is wide is enclosed, suitable for making tens kilowatts of motor.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.
Fig. 1 is the structural schematic diagram of disc type permanent magnet synchronous electric motor in the utility model；
Fig. 2 is the assembly structure figure of stator and rear end cap in the utility model；
Fig. 3 is the structural schematic diagram of stator punching 13 in the utility model；
Fig. 4 is the trench structure schematic diagram of notches for wire in the utility model；
Fig. 5 is the installation diagram of rotor in the utility model；
Fig. 6 is the installation diagram of drive end bearing bracket and rotary transformer in the utility model.
Specific embodiment
The specific embodiment for fully showing the utility model is described below, to enable those skilled in the art to reality
It tramples and reproduces.
As shown in Figure 1, being the structural schematic diagram of disc type permanent magnet synchronous electric motor in the utility model.
The structure of disc type permanent magnet synchronous electric motor includes: stator 1, base circle 2, rotor 3, drive end bearing bracket 4, rear end cap 5, rotation change
Depressor 6, rotation become lid 7；Drive end bearing bracket 4, rear end cap 5 are bolted at the both ends of base circle 2, and stator 1 is fixed on rear end cap 5
Inside, rotor 3, which is fixed on, is movably connected in drive end bearing bracket 4, on rear end cap 5, and the end of rotor is arranged in rotary transformer 6, and rotation becomes
Lid 7 is fixed on drive end bearing bracket 4, and rotation becomes the outside that lid 7 is located at rotary transformer 6.Stator 1, base circle 2, rotor 3, drive end bearing bracket 4,
Rear end cap 5, rotary transformer 6, rotation become lid 7 and are co-axially mounted.
As shown in Fig. 2, being the assembly structure figure of stator 1 and rear end cap 5 in the utility model；As shown in figure 3, being that this is practical
The structural schematic diagram of novel middle stator core.
Rear end cap 5 is provided with rear end cap axis hole 51 in shaft core position, and coil anchor is provided on the inner wall on the outside of axis hole
Slot.Bearing of rear end cover 52 is provided in rear end cap axis hole 51, bearing of rear end cover 52 is fixed using bolt and internal bearing cover 53.Rear end
Lid 5 is provided with flange 54 on the outside, and flange 54 is provided with flange through-hole, is fixed by flange 54 and outside.
Stator 1 includes: stator coil 11, stator core pressing ring 12, stator punching 13, and multiple superpositions of stator punching 13 are fixed
In stator core pressing ring 12, stator core is formed, stator core is provided with the wire casing of radially radial arrangement, stator coil
11 are mounted in wire casing, form a plane, and 12 benefit of stator core pressing ring is fixed by bolts in coil fixed groove.Stator line
The quantity for enclosing 11, wire casing determines that multiple stator coils 11 are arranged radially by the grade logarithm of motor.Rear end cap 5 is arranged
There is fairlead, the lead-out wire of stator coil 11 is stretched out from fairlead.
As shown in figure 4, being the trench structure schematic diagram of notches for wire 131 in the utility model.
Each stator punching 13 is being arranged radially multiple notches for wire 131 being arranged radially, and multiple notches for wire 131 are folded
Add to form wire casing, notches for wire 131 uses half opening, and this groove profile magnetic circuit reluctance is small, and slot space is big, is easy to embed the wire, slot wedge sealing
Securely, notches for wire is arranged by radial radiation shape, so that the axial direction that wire casing in the same plane, shortens motor stator core is long
Degree.
Stator coil 11 is easy integer, end using mush winding embedding end using mush winding, stranded conductor and around embedding
It is shorter.Stranded conductor is simultaneously smaller around the kelvin effect of embedding conducting wire, to reduce copper loss.
As shown in figure 5, being the installation diagram of rotor 3 in the utility model.
Rotor 3 includes: shaft 31, permanent magnet retaining plate 32, permanent magnet 33, rotor punching 34, rotor core pressing ring 35, turns
Submounts 36, bracket pressing ring 37.
Shaft 31 is provided with annular edge 313 at middle part, and first bearing linkage section 317 is provided on the left of annular edge 313 and is moved
Power deferent segment 318, power output section 318 are located at the outside of first bearing linkage section 317；It is successively set on the right side of annular edge 313
It is equipped with rotor linkage section 311, second bearing linkage section 314, rotary transformer linkage section 315,311 company of being provided with of rotor linkage section
Connect key 312；Second bearing linkage section 314 is located at 311 outside of rotor linkage section, becomes on the outside of second bearing linkage section 314 for rotation
Depressor linkage section 315 is provided with rotary transformer connection screw thread hole 316 in the end of rotary transformer linkage section 315.Bracket pressure
Circle 37 is provided with pressing ring through-hole at middle part.
Rotor field spider 36 is provided with shaft connection through-hole 361 and bracket pressing ring concave station 363 at axle center, and shaft connects through-hole
Connection keyway is provided in 361, rotor linkage section 311 is sleeved in shaft connection through-hole 361, and connecting key 312 is plugged on connection
In keyway；Rotor field spider 36 is provided with rotor core groove 364 in inside, and rotor core groove 364 is located at shaft connection through-hole
361 outsides；364 bottom of rotor core groove is provided with rotor core fixing screwed hole 262；Bracket pressing ring 37 is mounted on bracket pressure
It encloses at concave station 363, rotary transformer connection screw thread hole 315 is located in pressing ring through-hole 371.
Rotor core pressing ring 35 is mounted in rotor core groove 364, is fixed on the fixed spiral shell of rotor core by long spiro nail
On pit 262；Rotor punching 34 is mounted in rotor core pressing ring 35, and partition is provided between magnetic pole, and permanent magnet 33 is mounted on
34 outside of rotor punching, the setting of permanent magnet retaining plate 32 are connected by screw in 33 outside of permanent magnet, permanent magnet retaining plate 32
On rotor core pressing ring 35.
Rotor core groove 364 is annular groove, and 35 shape of rotor core pressing ring is annular.Permanent magnet 33 is fan-shaped column
Permanent magnet 33 is formed equal part on planar annular in rotor punching 34, is fixed by polarity orientation by body by the different number of pole-pairs of motor
Be bonded in 34 surface of rotor punching, permanent magnet 33 radially arranges in the plane that rotor punching 34 is formed, permanent magnet 33 it
Between separated with insulating barrier.33 specification same thickness of permanent magnet is the same, ensure that and is adhesively fixed on 34 surface of rotor punching forever
Magnet 33 forms a planar annular；Permanent magnet retaining plate 32 is bonded on the planar annular of the formation of permanent magnet 33, and magnet steel is fixed
Plate 32 is simultaneously fixed together with rotor field spider 36, prevents the oxidation of permanent magnet 33, and increase mechanical strength, reduces permanent magnet 33
Magnetic leakage factor increases air gap energy storage, is conducive to improve motor speed, shortens the axial length of motor.The magnetic leakage factor of this structure
For 10%-20%.
As shown in fig. 6, being the installation diagram of drive end bearing bracket 4 and rotary transformer 6 in the utility model.
Drive end bearing bracket 4 is provided with drive end bearing bracket axis hole 41 in shaft core position, and drive end bearing bracket bearing 42 is provided in drive end bearing bracket axis hole 41.
The first bearing linkage section 317 of shaft 31 is sleeved on bearing of rear end cover 52, and power output section 318 stretches out rear end cap
5 outside；The second bearing linkage section 314 of 31 other end of shaft is sleeved on drive end bearing bracket bearing 42, rotary transformer linkage section
315 are located at the inside that rotation becomes lid 7.
Rotary transformer 6 is the induction type micro machine that output voltage and angle of rotor keep certain functional relation.It is one
Angular displacement is converted to the displacement sensor of electric signal by kind, and can be carried out the decision element of coordinate transformation and functional operation.Rotation
Transformation depressor 6 is used to measure and the revolving speed of output rotor 3.Rotary transformer 6 include: resolver stator (be provided with input winding,
Export winding), resolver stator is fixed on drive end bearing bracket 4 using screw, and transformer rotor iron core is fixed on rotation using screw
In transformer connection screw thread hole 316.
The edge that rotation becomes lid 7 is fixed on drive end bearing bracket 4 using screw, and rotation becomes the outside that lid 7 is located at drive end bearing bracket 4, and rotation becomes lid 7
It is provided with outlet hole 71, the lead-out wire of the output winding of rotary transformer 6 stretches out outlet hole 71.
Above structure is suitable for the motor that number of pole-pairs is the various numbers of pole-pairs such as 3,4,5,6,8, is applicable in various revolving speeds, various
Power, various voltages disc type permanent magnet synchronous electric motor in.According to above motor construction gone out power 20Kw~100Kw,
Axial length is from 60mm~120mm, radial diameter 500mm~1000mm, revolving speed from 1000rpm~8000rpm, voltage from 480V
The disc type electric machine of a variety of different sizes such as~900V, the place small suitable for various vehicle air drafts and axial space.
It should be understood that above description be only it is exemplary and explanatory, the utility model, this reality can not be limited
With the novel process and structure for being not limited to be described above and be shown in the accompanying drawings, and can be without departing from the scope
It carry out various modifications and changes.The scope of the utility model is only limited by the accompanying claims.
Claims (10)
1. a kind of disc type permanent magnet synchronous electric motor characterized by comprising stator, base circle, rotor, drive end bearing bracket, rear end cap, rotation
Change depressor, rotation becomes lid；Drive end bearing bracket, rear end cap are bolted at the both ends of base circle, and stator is fixed on the interior of rear end cap
Side, rotor are mounted between drive end bearing bracket, rear end cap；Rear end cap is provided with rear end cap axis hole, the setting of rear end cap axis hole in shaft core position
There is bearing of rear end cover, is provided with coil fixed groove on the inner wall on the outside of rear end cap axis hole；Stator includes: stator coil, determines
Sub- iron core, stator core are provided with the wire casing of radially radial arrangement, and stator coil is mounted in wire casing, and stator core is fixed
In coil fixed groove；Rotor includes: shaft, rotor core, rotor field spider；Rotor field spider is provided with shaft company at axle center
Hole is connected, rotor is connected in shaft connection through-hole；Rotor field spider is provided with rotor core groove in inside；Rotor core installation
In rotor core groove, permanent magnet is fixed on the outside of rotor core；Drive end bearing bracket is provided with drive end bearing bracket axis hole, front end in shaft core position
Drive end bearing bracket bearing is provided in lid axis hole；Shaft is mounted on drive end bearing bracket bearing and bearing of rear end cover；Rotary transformer is mounted on
Rotation becomes the inside of lid, and rotation becomes lid and is fixed on drive end bearing bracket.
2. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that stator further include: stator core pressing ring, it is multiple
Stator punching is fixed in stator core pressing ring, and stator punching is provided with notches for wire, and multiple notches for wire are superimposed to form wire casing；Stator
Core flange benefit is fixed by bolts in coil stationary annular groove.
3. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that rotor core includes: permanent magnet retaining plate, forever
Magnet, rotor punching, rotor core pressing ring；Rotor core bottom portion of groove is provided with rotor core fixing screwed hole, rotor core
Pressing ring is mounted in rotor core groove, is fixed in rotor core fixing screwed hole by long spiro nail；Rotor punching is mounted on
In rotor core pressing ring, partition is provided between two magnetic poles, permanent magnet is mounted on the outside of rotor punching, permanent magnet retaining plate setting
On the outside of permanent magnet, permanent magnet retaining plate is connected by screw on rotor core pressing ring.
4. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that be provided with keyway in shaft connection through-hole；Turn
Axis is provided with annular edge at middle part, is provided with first bearing linkage section and power output section, power output section on the left of annular edge
In the outside of first bearing linkage section；Rotor linkage section, second bearing linkage section, rotation change are disposed on the right side of annular edge
Depressor linkage section, rotor linkage section are provided with connecting key, and the end of rotary transformer linkage section is provided with rotary transformer and connects
Connect threaded hole；Rotor linkage section is sleeved in shaft connection through-hole, and connecting key is plugged in connection keyway；First bearing linkage section
It is sleeved on bearing of rear end cover, power output section stretches out the outside of rear end cap；Second bearing linkage section is sleeved on drive end bearing bracket bearing
On, rotary transformer linkage section is located at the inside that rotation becomes lid；Rotary transformer is fixed on rotary transformer connection spiral shell using screw
On pit.
5. disc type permanent magnet synchronous electric motor as claimed in claim 4, which is characterized in that rotary transformer includes resolver stator, is become
Depressor stator is provided with input winding, output winding, and resolver stator is fixed on drive end bearing bracket using screw, transformer rotor iron
The heart is fixed in rotary transformer connection screw thread hole using screw；Rotation, which becomes to cover, is provided with outlet hole, the input winding of resolver stator,
It exports winding leading-out wire and stretches out outlet hole；Rear end cap is provided with fairlead, and the lead-out wire of stator coil is stretched out from fairlead.
6. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that coil fixed groove and rotor core groove are
Annular groove.
7. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that rotor field spider is provided with bracket pressure at axle center
Concave station is enclosed, bracket pressing ring is mounted at bracket pressing ring concave station, and bracket pressing ring is provided with pressing ring through-hole at middle part.
8. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that rear end cap axis hole utilizes bolt and internal bearing cover
Fixed, rear end cap is provided with flange on the outside.
9. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that stator coil, wire casing, the quantity of permanent magnet are logical
The grade logarithm of motor is crossed to determine, multiple stator coils and permanent magnet are arranged radially.
10. disc type permanent magnet synchronous electric motor as described in claim 1, which is characterized in that stator coil uses mush winding, stranded conductor
And around embedding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656141.2U CN208272818U (en) | 2018-05-03 | 2018-05-03 | Disc type permanent magnet synchronous electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656141.2U CN208272818U (en) | 2018-05-03 | 2018-05-03 | Disc type permanent magnet synchronous electric motor |
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| Publication Number | Publication Date |
|---|---|
| CN208272818U true CN208272818U (en) | 2018-12-21 |
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ID=64681958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820656141.2U Active CN208272818U (en) | 2018-05-03 | 2018-05-03 | Disc type permanent magnet synchronous electric motor |
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| Country | Link |
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| CN (1) | CN208272818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365723A (en) * | 2018-05-03 | 2018-08-03 | 包头天工电机有限公司 | Disc type permanent magnet synchronous electric motor |
-
2018
- 2018-05-03 CN CN201820656141.2U patent/CN208272818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365723A (en) * | 2018-05-03 | 2018-08-03 | 包头天工电机有限公司 | Disc type permanent magnet synchronous electric motor |
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