CN209462107U - A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure - Google Patents
A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure Download PDFInfo
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- CN209462107U CN209462107U CN201920555835.1U CN201920555835U CN209462107U CN 209462107 U CN209462107 U CN 209462107U CN 201920555835 U CN201920555835 U CN 201920555835U CN 209462107 U CN209462107 U CN 209462107U
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Abstract
The utility model discloses a kind of rotor structures of squirrel-cage permanent magnet synchronous motor, including rotor punching group, rotor axle sleeve, permanent magnet and armature spindle, rotor punching group includes 4~8 groups of cyclic annular setting, permanent magnet is axially fixed between adjacent two rotor punchings group, rotor axle sleeve is fixed in rotor axle sleeve in the inner circumferential die cast and fixation, armature spindle of rotor punching group；Every group rotor punching group includes the first punching group and the second punching group of axially staggered fixation, axial conducting bar slot is circumferentially uniformly provided in rotor punching group, through setting conducting bar in conducting bar slot, rotor endcap is arranged in rotor punching both ends, and rotor endcap and conducting bar are integrated die casting and form cage-shaped structure.The technical solution of the utility model, which has the advantage that, securely holds rotor punching, and biggish rotation torque is able to bear under biggish rotation speed；The magnetic energy product phenomenon for losing permanent magnet is small, improves the application value of permanent magnet, can show that efficiency is higher, and power factor is higher in operation.
Description
Technical field
The utility model relates to permanent magnet synchronous motor technical fields, and in particular to a kind of squirrel-cage permanent magnet synchronous motor and its
Rotor structure.
Background technique
Permanent magnet synchronous motor has many advantages, such as that small in size, high reliablity, power density and torque density are high, is answered extensively
With；One of the component of permanent magnet synchronous motor that rotor punching is, the structure of permanent-magnetic synchronous motor rotor is to permanent magnet synchronous motor
Performance has a very big impact.
Currently, the rotor of permanent magnet synchronous motor is embedded with permanent magnet, for improving the efficiency and power factor of motor.Permanent magnet
The closure of magnetic circuit is divided into two parts, and a part forms closed magnetic circuit by rotor core, i.e., the magnetic circuit of leakage field, another part are logical
It crosses stator core and forms closed magnetic circuit, it is more by the magnetic line of force of stator core, it is meant that the utilization rate of permanent magnet is higher.Often
The slot interplane of the permanent-magnetic synchronous motor rotor of rule be equipped with partition, if but the partition width of slot interplane is wider, leakage field is bigger, and
And permanent magnet material is wasted, increased costs are caused, and the width separated is narrower, the mechanical strength at the position compares again in punching
Weakness, when rotor runs at high speed for a long time, and the punching at the position is operated, the effect of centrifugal force and electromagnetic force can be broken, and be influenced
The operating of rotor.The rotor structure of current this magneto is under the premise of guaranteeing that leakage field is small, it is difficult to ensure that rotor
The intensity of iron core.
Utility model content
In order to solve the above technical problems, the utility model is small by providing a kind of magnetic leakage factor, and it is same to can be improved permanent magnetism
It walks the rotor structure of the efficiency of motor and the squirrel-cage permanent magnet synchronous motor of power factor (PF) and utilizes the permanent magnetism of the rotor structure same
Walk motor.
The utility model in order to achieve the above objectives, is achieved especially by following technical scheme:
A kind of rotor structure of squirrel-cage permanent magnet synchronous motor, including rotor punching group, rotor axle sleeve, permanent magnet and rotor
Axis, rotor punching group include 4~8 groups of cyclic annular setting, and permanent magnet is axially fixed between adjacent two rotor punchings group, armature spindle
The inner circumferential die cast and fixation, armature spindle covered in rotor punching group is fixed in rotor axle sleeve；Every group rotor punching group includes
The the first punching group and the second punching group of axially staggered fixation are circumferentially uniformly provided with axial conducting bar slot, conducting bar in rotor punching group
Through setting conducting bar in slot, rotor endcap is arranged in rotor punching both ends, and rotor endcap and conducting bar are integrated die casting and form mouse cage knot
Structure.
As further improved scheme, the material of rotor axle sleeve and cage-shaped structure is aluminium.It is solid in rotor in order to reduce
Determine the resistance of structure, more preferably rafifinal, if there is impurity resistance to increase, efficiency is reduced.
As further improved scheme, armature spindle and rotor axle sleeve are interference fit.
As further improved scheme, the outer side edges and inner side edge of rotor punching group are concentric arcuation；Rotor punching group
Two sides open up permanent magnet trough and filling slot.
As further improved scheme, filling slot is dovetail channel-shaped, the corresponding filling slot of adjacent two rotor punchings group it
Between and its internal die casting be fixed with connection strap.
As further improved scheme, the thickness of the first punching group and the second punching group is 3~30mm.
As further improved scheme, the first punching group is laminated by the first punching of multilayer and is formed, and inner side edge is equipped with the
One arc-shaped slot and the first connecting hole；Second punching group is laminated by the second punching of multilayer and is formed, and inside is equipped with the second arc groove
Mouth and the second connecting hole；First arc-shaped slot is corresponding with the second connecting hole, and the first connecting hole is corresponding with the second arc-shaped slot.
As further improved scheme, groove and protrusion are set in the first punching, passed through between adjacent two first punching
Groove with protrusion it is corresponding be fastened after form the first punching group；Groove and protrusion, adjacent two second punching are set in the second punching
The second punching group is formed after being fastened between piece by the way that groove is corresponding with protrusion.
As further improved scheme, several fixed guide posts are circumferentially arranged in rotor endcap lateral surface.
A kind of squirrel-cage permanent magnet synchronous motor, using the rotor knot of the squirrel-cage permanent magnet synchronous motor in any above scheme
Structure.
Compared with prior art, the technical solution of the utility model has the advantage that
1) whole rotor punchings are securely held, biggish rotation torque is able to bear under biggish rotation speed；
2) rotor axle sleeve cooperates firmly with armature spindle, is not easy out of shape；
3) the magnetic energy product phenomenon for losing permanent magnet is small, improves the application value of permanent magnet, can show in operation
Efficiency is higher out, and power factor is higher；
4) easily fabricated, convenient for magnetizing.
Detailed description of the invention
Fig. 1 is the positive structure schematic of rotor structure in the utility model；
Fig. 2 is Section A-A schematic diagram in Fig. 1；
Fig. 3 is the structural schematic diagram of the first punching group in embodiment one；
Fig. 4 is the structural schematic diagram of the second punching group in embodiment one；
Fig. 5 is the structural schematic diagram of the first punching group in embodiment two；
Fig. 6 is the structural schematic diagram of the second punching group in embodiment two；
Fig. 7 is the first punching group and the structural schematic diagram after the cooperation of the second punching group in embodiment two.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be understood that unless otherwise clearly defined and limited, term " the
One ", " second " etc. is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated
Technical characteristic quantity.Define " first " as a result, the feature of " second " can explicitly or implicitly include one or
More this feature.
Term " on ", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outside", "center", "vertical",
The orientation or positional relationship of the instructions such as "horizontal" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
As shown in Figures 1 to 7, the rotor structure of a kind of squirrel-cage permanent magnet synchronous motor of the utility model, including rotor
Punching group 1, permanent magnet 2, rotor axle sleeve 3 and armature spindle 4, rotor punching group 1 include 4~8 groups of cyclic annular setting, and preferably 6 groups,
The embodiment of other group of number can array of structures through this embodiment increase or decrease acquisition.In this embodiment, permanent magnet 2 is
4 groups, permanent magnet 2 is axially fixed between adjacent two rotor punchings group 1.Rotor axle sleeve 3 is cast into the inner circumferential of rotor punching group 1
Type and fixation, armature spindle 4 are fixed in rotor axle sleeve 3.Permanent magnet 2 be 3 die cast of rotor axle sleeve and after fixing again by filling
Magnetomechanical magnetizes.
The the first punching group 11 and the second punching group 12 of every group rotor punching group 1 including axially staggered fixation, when assembling, the
Axially alternately superposition installation forms a group rotor punching group for one punching group and punching group.It is circumferentially uniformly opened in rotor punching group 1
There is axial conducting bar slot 13, setting conducting bar 6 is run through in conducting bar slot 12, conducting bar 6 is that die cast and fixation are melted in conducting bar slot 12,
Rotor endcap 5 is arranged in 1 both ends of rotor punching group, and rotor endcap 5 and conducting bar 6 are integrated die casting and form cage-shaped structure.Rotor endcap 5
With a thickness of 10~30mm.
Preferably, rotor axle sleeve 3 and the material of cage-shaped structure are aluminium.Armature spindle 4 and rotor axle sleeve 3 are interference fit.
The rotor axle sleeve 3 of die-casting body structure in the utility model, fastness is strong, is able to bear the biggish centrifugation of each component of rotor structure
Power has axial restriction ability to rotor punching group 1, the on-deformable function when being interference fitted with armature spindle 4.
The outer side edges and inner side edge of rotor punching group 1 are concentric arc.The two sides of rotor punching group 1 open up permanent magnet trough 14
With filling slot 15.Permanent magnet is permanent-magnet material, is magnetized again after 3 die casting of rotor axle sleeve, and permanent magnet 2 passes through permanent magnet trough 14
It is axially fixed between two adjacent groups rotor punching group 1.Filling slot 15 is located at 14 outside of permanent magnet trough, and aluminium is filled in same die casting
Material guarantees to realize inside and outside fixed rotor punching group and permanent magnet and fix, by also as a part of cage-shaped structure.
Filling slot 15 is dovetail channel-shaped, and between the corresponding filling slot 15 of adjacent two rotor punchings group 1 and its internal die casting is solid
Surely there is connection strap 7.The connection strap 7 and oat tail groove structure of die casting guarantee that two adjacent rotor punching groups 1 are reliably fixed, and guarantee big
Not discrete piece under torque operating condition.
As shown in figure 3, the first punching group 11 with a thickness of 3~30mm, laminated and formed by the first punching of multilayer, inside
Equipped with the first arc-shaped slot 111 and the first connecting hole 112.As shown in figure 4, the second punching group 12 with a thickness of 3~30mm, by
The second punching of multilayer laminates to be formed, and inside is provided with the second arc-shaped slot 121 and the second connecting hole 122.First arc-shaped slot 111
Corresponding with the second connecting hole 122, the first connecting hole 112 is corresponding with the second arc-shaped slot 121.
First punching group 11 and 12 thickness of the second punching group are determined that Rated motor revolution is got over by the rated revolution of motor
It is low, the thickness of the first punching group 11 and the second punching group 12 more after.But if thickness is excessively small, and in die casting aluminium, aluminum melt should not be pressed
Type casting moulding.
First punching and the second punching are the monomer structure of rotor punching group 1, are silicon steel sheet punch forming.First arc groove
Mouthfuls 111 corresponding with the position of the second connecting hole 122 and diameter, the position of the first connecting hole 121 and the second arc-shaped slot 111 and directly
Diameter is corresponding.Pressure has been poured into while 3 compression moulding of rotor axle sleeve in staggered first connecting hole 112 and the second connecting hole 122
Cast melt, and form the fixed structure with the one of rotor axle sleeve 3, thus formed it is non-dismountable, securely hold rotor punching group 1.
The diameter and the first connecting hole 112 of first connecting hole 112 and the second connecting hole 122 and the second connecting hole 122 with by motor
Rated revolution determine, Rated motor revolution is lower, and aperture is bigger.
As shown in Figure 3 and Figure 4, in example 1, the left side of the inner side edge of the first punching group 11 has 1 the first arc
Notch 111, right side have 1 the first connecting hole 112.In this embodiment, the second punching group 12 is pair of the first punching group 11
Claim structure, the left side of the inner side edge of the second punching group 12 has 1 the second connecting hole 122 as a result, and right side has 1 the second arc
Shape notch 121.It will directly can be assembled after the overturning of the first punching group 11 as the second punching group 12, the first punching group 11 and the second punching
Structure after the superposition installation of piece group 12 is as shown in Figure 2.
As shown in Figures 5 to 7, in embodiment two, the group number of rotor punching group 1 is preferably 4 groups.First punching group 11 it is interior
The middle part of side has 1 the first arc-shaped slot 111, and the two sides of the first arc-shaped slot 111 have 2 the first connecting holes 112；The
The middle part of the inner side edge of two punching groups 12 has 1 the second connecting hole 122, and the two sides of the second connecting hole 122 have 2 the second arcs
Shape notch 121.It is as shown in Figure 7 that first punching group 11 and the second punching group 12 are superimposed corresponding installation site.
Groove and protrusion are set in the first punching, are fastened between adjacent two first punching by the way that groove is corresponding with protrusion
After form the first punching group 11；Groove and protrusion are set in the second punching, pass through groove and protrusion between adjacent two second punching
It corresponds to and forms the second punching group 12 after being fastened.
Several fixed guide posts 51 are circumferentially arranged in 5 lateral surface of rotor endcap.Fixed guide post 51 is tapered pole, for dynamically balanced
When the tapered pole that is designed convenient for fixed dynamic balancing body, if the balance ring of required dry weight can be inserted into this tapered pole
It is fixed again afterwards, rotates rotor structure smoothly.
By assembling, die casting filling, installation shaft and etc. after rotor structure carry out peripheral milling again, then magnetize, move
Blance test.
One of the utility model squirrel-cage permanent magnet synchronous motor, using the squirrel-cage permanent magnetism in any of the above-described embodiment
The rotor structure of synchronous motor.
The squirrel-cage permanent magnet synchronous motor of the utility model using Baosteel (domestic) non-oriented silicon steel sheet punching press stator and
Rotor, be manufactured that installation dimension be 112M-4, rated power 4Kw, 4 pole three phase asynchronous motors as a comparison case.This is right
Ratio does not have mosaic magnet, is threephase asynchronous, its turn up is less than synchronous rotational speed.To the motor in comparative example into
Row detection:
Voltage rating: 380 (V)；Rated power: 4.2 (kW)；The detection date is on December 8th, 2018；Detection device comes from
Hangzhou Yi Deng Science and Technology Ltd..Testing result is as shown in table 1:
Table 1: the application structure electrode detection structure
| No | U(V) | I(A) | Pi(kW) | M(N.m) | n(rpm) | Po(kW) | EFF (%) | PF | HZ |
| 71 | 379.5 | 6.08 | 2.67 | 14.90 | 1478 | 2.31 | 86.52 | 0.67 | 50 |
| 72 | 379.4 | 6.14 | 2.71 | 15.25 | 1478 | 2.36 | 86.35 | 0.67 | 50 |
| 73 | 379.5 | 6.21 | 2.77 | 15.55 | 1477 | 2.41 | 87 | 0.68 | 50 |
| 74 | 379.5 | 6.26 | 2.82 | 15.83 | 1477 | 2.45 | 86.88 | 0.68 | 50 |
| 75 | 379.4 | 6.35 | 2.89 | 16.13 | 1477 | 2.49 | 86.16 | 0.69 | 50 |
| 76 | 379.4 | 6.35 | 2.89 | 16.13 | 1477 | 2.49 | 86.16 | 0.69 | 50 |
| 77 | 379.5 | 6.47 | 3.01 | 17.01 | 1475 | 2.63 | 85.71 | 0.71 | 50 |
| 78 | 379.5 | 6.55 | 3.07 | 17.23 | 1475 | 2.66 | 86.64 | 0.71 | 50 |
| 79 | 379.5 | 6.61 | 3.13 | 17.73 | 1474 | 2.74 | 86.26 | 0.72 | 50 |
| 80 | 379.4 | 6.72 | 3.21 | 18.11 | 1473 | 2.79 | 86.92 | 0.73 | 50 |
| 81 | 379.5 | 6.77 | 3.26 | 18.53 | 1473 | 2.86 | 86.5 | 0.73 | 50 |
| 82 | 379.4 | 6.84 | 3.29 | 18.68 | 1473 | 2.88 | 87.54 | 0.73 | 50 |
| 83 | 379.5 | 6.92 | 3.37 | 18.89 | 1472 | 2.91 | 86.35 | 0.74 | 50 |
| 84 | 379.5 | 6.95 | 3.39 | 19.48 | 1471 | 3 | 87.02 | 0.74 | 50 |
| 85 | 379.5 | 7.09 | 3.5 | 19.82 | 1471 | 3.05 | 87.14 | 0.75 | 50 |
| 86 | 379.5 | 7.16 | 3.56 | 20.24 | 1470 | 3.12 | 86.52 | 0.76 | 50 |
| 87 | 379.4 | 7.26 | 3.63 | 20.55 | 1469 | 3.16 | 87.05 | 0.76 | 50 |
| 88 | 379.3 | 7.33 | 3.69 | 21.04 | 1469 | 3.24 | 86.45 | 0.77 | 50 |
| 89 | 379.3 | 7.42 | 3.76 | 21.32 | 1468 | 3.28 | 87.23 | 0.77 | 50 |
| 90 | 379.3 | 7.50 | 3.82 | 21.78 | 1467 | 3.35 | 86.65 | 0.78 | 50 |
| 91 | 379.3 | 7.61 | 3.9 | 22.12 | 1467 | 3.4 | 87.18 | 0.78 | 50 |
| 92 | 379.3 | 7.63 | 3.91 | 22.42 | 1466 | 3.44 | 87.47 | 0.78 | 50 |
| 93 | 379.3 | 7.74 | 4 | 22.72 | 1466 | 3.49 | 87.25 | 0.78 | 50 |
| 94 | 379.3 | 7.81 | 4.06 | 23.14 | 1465 | 3.55 | 86.45 | 0.79 | 50 |
| 95 | 379.4 | 7.89 | 4.14 | 23.50 | 1465 | 3.6 | 86.96 | 0.80 | 50 |
| 96 | 379.3 | 8.01 | 4.2 | 23.96 | 1464 | 3.67 | 86.9 | 0.80 | 50 |
| 97 | 379.3 | 8.07 | 4.27 | 24.30 | 1463 | 3.72 | 86.18 | 0.80 | 50 |
| 98 | 379.3 | 8.19 | 4.35 | 24.66 | 1463 | 3.78 | 86.9 | 0.81 | 50 |
| 99 | 379.4 | 8.27 | 4.41 | 25.14 | 1462 | 3.85 | 86.62 | 0.81 | 50 |
| 100 | 379.3 | 8.38 | 4.48 | 25.45 | 1461 | 3.89 | 86.83 | 0.81 | 50 |
| 101 | 379.4 | 8.45 | 4.53 | 25.63 | 1461 | 3.92 | 86.53 | 0.82 | 50 |
| 102 | 379.2 | 8.53 | 4.59 | 26.09 | 1460 | 3.99 | 86.93 | 0.82 | 50 |
| 103 | 379.2 | 8.64 | 4.66 | 26.29 | 1460 | 4.02 | 86.27 | 0.82 | 50 |
| 104 | 379.2 | 8.72 | 4.72 | 26.87 | 1459 | 4.1 | 85.81 | 0.82 | 50 |
| 105 | 379.2 | 8.83 | 4.79 | 27.17 | 1458 | 4.15 | 86.64 | 0.82 | 50 |
| 106 | 379.2 | 8.91 | 4.85 | 27.65 | 1458 | 4.22 | 86.19 | 0.83 | 50 |
| 107 | 379.2 | 9.03 | 4.93 | 28.01 | 1457 | 4.27 | 86.61 | 0.83 | 50 |
Table 2: comparative example motor load behavior pattern is such as
Using the stator of motor in comparative example, motor is manufactured using the rotor structure in the utility model embodiment one, into
Row electric machines test:
Voltage rating: 350 (V)；Rated power: 4.2 (kW)；The detection date is on November 8th, 2018；Detection device comes from
Hangzhou Yi Deng Science and Technology Ltd..Its testing result is as shown in table 3:
Table 3: the testing result of motor manufactured by the rotor structure in the embodiment of the present application one
| No | U(V) | I(A) | Pi(kW) | M(N.m) | n(rpm) | Po(kW) | EFF (%) | PF | HZ |
| 71 | 349.7 | 5.84 | 2.67 | 15.11 | 1500 | 2.37 | 88.76 | 0.75 | 50 |
| 72 | 350.0 | 5.92 | 2.73 | 15.33 | 1500 | 2.41 | 88.28 | 0.76 | 50 |
| 73 | 350.0 | 5.92 | 2.73 | 15.83 | 1500 | 2.49 | 88.28 | 0.76 | 50 |
| 74 | 349.9 | 6.10 | 2.86 | 16.15 | 1500 | 2.54 | 88.81 | 0.77 | 50 |
| 75 | 350.2 | 6.16 | 2.91 | 16.57 | 1500 | 2.6 | 88.32 | 0.77 | 50 |
| 76 | 350.0 | 6.22 | 2.95 | 16.91 | 1500 | 2.66 | 90.17 | 0.78 | 50 |
| 77 | 350.2 | 6.35 | 3.04 | 17.33 | 1500 | 2.72 | 88.82 | 0.79 | 50 |
| 78 | 350.4 | 6.41 | 3.1 | 17.67 | 1500 | 2.78 | 89.68 | 0.79 | 50 |
| 79 | 350.2 | 6.54 | 3.17 | 18.07 | 1500 | 2.84 | 88.96 | 0.80 | 50 |
| 80 | 350.4 | 6.59 | 3.22 | 18.41 | 1500 | 2.89 | 89.75 | 0.80 | 50 |
| 81 | 350.5 | 6.69 | 3.27 | 18.63 | 1500 | 2.93 | 89.3 | 0.80 | 50 |
| 82 | 350.5 | 6.75 | 3.33 | 19.00 | 1500 | 2.98 | 89.49 | 0.81 | 50 |
| 83 | 350.7 | 6.87 | 3.39 | 19.39 | 1501 | 3.05 | 89.09 | 0.81 | 50 |
| 84 | 350.8 | 6.99 | 3.47 | 19.74 | 1500 | 3.1 | 89.34 | 0.81 | 50 |
| 85 | 350.8 | 7.07 | 3.53 | 20.16 | 1500 | 3.17 | 88.67 | 0.82 | 50 |
| 86 | 350.8 | 7.20 | 3.61 | 20.54 | 1500 | 3.23 | 89.47 | 0.82 | 50 |
| 87 | 351.0 | 7.28 | 3.67 | 20.96 | 1500 | 3.29 | 88.56 | 0.83 | 50 |
| 88 | 351.0 | 7.41 | 3.74 | 21.32 | 1500 | 3.35 | 89.57 | 0.83 | 50 |
| 89 | 351.0 | 7.50 | 3.8 | 21.72 | 1500 | 3.41 | 88.95 | 0.83 | 50 |
| 90 | 350.9 | 7.62 | 3.88 | 22.08 | 1500 | 3.47 | 89.43 | 0.83 | 50 |
| 91 | 350.9 | 7.67 | 3.91 | 22.34 | 1500 | 3.51 | 89.26 | 0.84 | 50 |
| 92 | 350.8 | 7.78 | 3.98 | 22.70 | 1500 | 3.57 | 89.7 | 0.84 | 50 |
| 93 | 350.7 | 7.86 | 4.04 | 23.12 | 1500 | 3.63 | 88.61 | 0.84 | 50 |
| 94 | 350.7 | 7.99 | 4.12 | 23.46 | 1500 | 3.69 | 89.56 | 0.85 | 50 |
| 95 | 350.7 | 8.09 | 4.18 | 23.92 | 1500 | 3.76 | 89 | 0.85 | 50 |
| 96 | 350.6 | 8.22 | 4.26 | 24.25 | 1500 | 3.81 | 89.44 | 0.85 | 50 |
| 97 | 350.4 | 8.31 | 4.32 | 24.70 | 1500 | 3.88 | 88.89 | 0.85 | 50 |
| 98 | 350.3 | 8.45 | 4.4 | 25.06 | 1500 | 3.94 | 89.55 | 0.85 | 50 |
| 99 | 350.3 | 8.53 | 4.46 | 25.49 | 1501 | 4 | 88.79 | 0.86 | 50 |
| 100 | 350.0 | 8.67 | 4.54 | 25.84 | 1500 | 4.06 | 89.43 | 0.86 | 50 |
| 101 | 350.0 | 8.73 | 4.57 | 26.09 | 1500 | 4.1 | 89.28 | 0.86 | 50 |
| 102 | 349.8 | 8.85 | 4.64 | 26.41 | 1500 | 4.15 | 89.44 | 0.86 | 50 |
| 103 | 349.7 | 8.94 | 4.7 | 26.85 | 1500 | 4.22 | 88.94 | 0.87 | 50 |
| 104 | 349.7 | 9.08 | 4.78 | 27.21 | 1500 | 4.27 | 89.33 | 0.87 | 50 |
Utilize the motor load behavior pattern such as table 4 of one rotor of embodiment:
Table 4: the motor load performance detection of one rotor of the embodiment of the present application
The part of PF is power factor in the table of examining report, is obtained from table 1 into the data of table 4, the detection report of table 1
Accuse compared to table 3, the motor power factor of comparative example be it is universal lower, after table 3 is mosaic magnet, show its power factor
Be it is universal higher, can be improved from the 0.83 of comparative example to the 0.87 of the utility model.Turned using the motor of the utility model
The performances such as speed and efficiency are improved significantly.
The specific embodiment of the utility model is only the explanation to the utility model, is not to the utility model
Limitation, those skilled in the art can according to need after reading this specification makes without creative tribute the present embodiment
The modification offered, but as long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of rotor structure of squirrel-cage permanent magnet synchronous motor, which is characterized in that including rotor punching group (1), rotor axle sleeve
(2), permanent magnet (3) and armature spindle (4), rotor punching group include 4~8 groups of cyclic annular setting, and permanent magnet is axially fixed in adjacent
Between two rotor punching groups, rotor axle sleeve is fixed on armature spindle in the inner circumferential die cast and fixation, armature spindle of rotor punching group
In set；Every group rotor punching group includes the first punching group (11) and the second punching group (12) of axially staggered fixation, rotor punching
It is circumferential in group to be uniformly provided with axial conducting bar slot (13), setting conducting bar (6) is run through in conducting bar slot, rotor is arranged in rotor punching group both ends
End cap (5), rotor endcap and conducting bar are integrated die casting and form cage-shaped structure.
2. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that rotor axle sleeve and mouse
The material of basket structure is aluminium.
3. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that the armature spindle with
Rotor axle sleeve is interference fit.
4. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that rotor punching group
Outer side edges and inner side edge are concentric arcuation, and two sides open up permanent magnet trough (14) and filling slot (15).
5. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 4, which is characterized in that filling slot is dovetail
Channel-shaped, between the corresponding filling slot of adjacent two rotor punchings group and its internal die casting is fixed with connection strap (7).
6. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that the first punching group and
Second punching group with a thickness of 3~30mm.
7. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that the first punching group by
The first punching of multilayer laminates to be formed, and inside is equipped with the first arc-shaped slot (111) and the first connecting hole (112)；Second punching group
It is laminated and is formed by the second punching of multilayer, inside is equipped with the second arc-shaped slot (121) and the second connecting hole (122)；First arc
Notch is corresponding with the second connecting hole, and the first connecting hole is corresponding with the second arc-shaped slot.
8. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 7, which is characterized in that set in the first punching
Groove and protrusion are set, forms the first punching group after being fastened between adjacent two first punching by the way that groove is corresponding with protrusion；The
Groove and protrusion are set in two punchings, form second after being fastened between adjacent two second punching by the way that groove is corresponding with protrusion
Punching group.
9. the rotor structure of squirrel-cage permanent magnet synchronous motor according to claim 1, which is characterized in that on the outside of rotor endcap
Several fixed guide posts (51) are circumferentially arranged in face.
10. a kind of squirrel-cage permanent magnet synchronous motor, which is characterized in that using any squirrel-cage permanent magnetism of claim 1~9
The rotor structure of synchronous motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555835.1U CN209462107U (en) | 2019-04-22 | 2019-04-22 | A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555835.1U CN209462107U (en) | 2019-04-22 | 2019-04-22 | A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure |
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| Publication Number | Publication Date |
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| CN209462107U true CN209462107U (en) | 2019-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904949A (en) * | 2019-04-22 | 2019-06-18 | 李明山 | A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904949A (en) * | 2019-04-22 | 2019-06-18 | 李明山 | A kind of squirrel-cage permanent magnet synchronous motor and its rotor structure |
| CN109904949B (en) * | 2019-04-22 | 2024-07-09 | 崔明花 | Squirrel-cage permanent magnet synchronous motor and rotor structure thereof |
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Effective date of registration: 20220701 Address after: 075700 No. 6, jingdai Road, Yu County Economic Development Zone, Zhangjiakou City, Hebei Province Patentee after: Hebei Zhangqing Technology Co.,Ltd. Address before: 157099 Room 601, unit 2, building 1, Hualong 1st District, xiliutiao Road, Xi'an District, Mudanjiang City, Heilongjiang Province Patentee before: Li Mingshan |