CN208674971U - Disc type electric machine and its stator core construction - Google Patents
Disc type electric machine and its stator core construction Download PDFInfo
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- CN208674971U CN208674971U CN201821444121.5U CN201821444121U CN208674971U CN 208674971 U CN208674971 U CN 208674971U CN 201821444121 U CN201821444121 U CN 201821444121U CN 208674971 U CN208674971 U CN 208674971U
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Abstract
The utility model provides a kind of stator core construction of disc type electric machine, including stator core and the stator end plate for being set to its axial sides；Stator core includes multiple segmented armatures for surrounding it circumferentially, is offered on the end face of stator end plate through its thickness direction, and the clamping through-hole with the end snap fit of segmented armature；Clamp the position limiting structure for being provided on the inside of the clamping of through-hole and segmented armature and being limited to the axial sliding of segmented armature.By setting position limiting structure to segmented armature and stator end plate along the positioning of stator core axial direction.Segmented armature and stator end plate are clamped into fixation by clamping through-hole, stator core and magnet steel identity distance is effectively reduced from effective air gap, so that stator core is at work, work directly can be incuded by the end face of stator end plate and rotor, avoid medium to the sealing and curing of stator core, the magnetic property for influencing stator core, further increases the electromagnetic performance of disc type electric machine.The utility model additionally provides a kind of disc type electric machine.
Description
Technical field
The utility model relates to technical field of motors, more specifically to a kind of disc type electric machine and its stator core knot
Structure.
Background technique
Disc type electric machine is also motor in axial magnetic field, and the direction in the magnetic field inside motor is axially axial magnetic field electricity
Flat structure is generally all presented in machine.
The structure of disc type electric machine mainly has single stator single rotor, bimorph transducer single rotor, single stator and double-rotor and multiple stators
The structure of more rotors.With the breakthrough of new material and new process, disc type electric machine starts slowly to rise.Disc type electric machine is due to higher
Iron core utilization, bigger power density and higher torque density are strictly wanted particularly suitable for having to motor volume and weight
The occasion asked.
In a kind of disc type electric machine of existing single stator and double-rotor structure, stator is located among two rotors, stator electricity
Pivot iron core and winding are fixed in the casing of motor by stator front end-plate and stator end plate.Stator front end-plate, stator rear end
Plate and motor case together form a closed cavity, using the closed cavity, realize the oil duct inside motor stator
Cavity and specific oil circuit arrangement.
In the disc type electric machine of single stator and double-rotor, the motor stator type of cooling cold using oil, therefore to motor stator
It is sealed with biggish requirement.In order to realize preferable sealing effect, existing scheme is using stator front end-plate and stator end plate
The iron core of motor and winding are coated on inside completely, to form closed cavity.But due to stator front end-plate and stator after
End plate is located among stator core and rotor magnetic steel, therefore This structure increases the actually active air gaps of electric machine rotor, reduce
The electromagnetic performance of motor.
Simultaneously as above-mentioned disc type electric machine is cold using oil, therefore when being used in automotive applications, provided due to vehicle
It is chilled(cooling) water return (CWR), therefore also needs nominal configuration heat exchanger and corresponding oil pump and oil pump drive system, entire oil circuit
Circuit system is complicated.
The bearing of disc type electric machine is fixed at stator inner periphery, stator inner periphery as bearing chamber, the structure middle (center) bearing by
Stator support, and motor is in the process of running, stator is the largest pyrotoxin, and the high temperature of stator can be transmitted to bearing chamber and axis
It holds, reduces bearing reliability and service life, and increase the risk of bearing fault.In addition, due to front and back bearings all positions of disc type electric machine
In narrow stator shaft orientation space, therefore the front and back bearings of motor are apart from close.The bearing arrangement of this configuration easily causes
The vibration of rotor-support-foundation system and the risk for increasing both sides rotor unbalance.
Therefore, the electromagnetic performance for how improving disc type electric machine electronics iron core is that current those skilled in the art are urgently to be resolved
The problem of.
Utility model content
In view of this, the present invention provides a kind of stator core constructions of disc type electric machine, to improve disc type electric machine electricity
The electromagnetic performance of sub- iron core；The utility model additionally provides a kind of disc type electric machine.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of stator core construction of disc type electric machine, including stator core and the stator end plate for being set to its axial sides；
The stator core includes multiple segmented armatures for surrounding it circumferentially, is opened up on the end face of the stator end plate
Have through its thickness direction, and clamps through-hole with the end snap fit of the segmented armature；
Be provided on the inside of the clamping for clamping through-hole and the segmented armature to the axial direction of the segmented armature slide into
The position limiting structure of row limit.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the position limiting structure includes stretching out in the segmentation
The positive stop lug boss of the end end face of armature radial direction, and be set to the inner face of the stator end plate and clamped with the positive stop lug boss
The step locating slot of cooperation.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the positive stop lug boss is described including being respectively arranged at
The outer ring positive stop lug boss of segmented armature radially outer band, and it is set to the inner ring positive stop lug boss of the segmented armature radially inner band；
The step locating slot include respectively to the outer ring step groove of the outer ring positive stop lug boss snap fit, and to the inner ring limit
The inner ring step groove of boss snap fit.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the end of the segmented armature and the stator terminal
The end face flush arrangement of plate, the positive stop lug boss are the positive stop lug boss of the arc structure circumferentially along the segmented armature.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the stator end plate is described including being respectively arranged at
It is opened on the stator front end-plate and stator end plate of stator core axial ends, the stator front end-plate and the stator end plate
Equipped with the clamping through-hole with the segmented armature snap fit.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the outer ring of the stator core is additionally provided with frame support
The casing of itself and the stator end plate is additionally provided with the week around the stator core between the casing and the stator core
To the water annulus of arrangement, the inlet and outlet for being connected to the water annulus are offered on the casing.
Preferably, in the stator core construction of above-mentioned disc type electric machine, coil, any phase are disposed on the segmented armature
The thermally conductive sheet between the radially-protruding line of the stator core, thermally conductive sheet between the line are additionally provided between two adjacent coils
Outer end offset with the water annulus.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the inner ring of the stator core is additionally provided with and institute
The annular thermally conductive sheet that the inner ring of coil offsets is stated, the outer ring of thermally conductive sheet and the annular thermally conductive sheet offsets between the line.
Preferably, in the stator core construction of above-mentioned disc type electric machine, the consolidation stator is also filled in the casing
The media filler layer of thermally conductive sheet, the annular thermally conductive sheet and the water annulus between end plate, the stator core, the line.
A kind of disc type electric machine, including casing and the stator core being set in the casing, the stator core has such as
The stator core construction of disc type electric machine described in any one of upper.
The stator core construction of disc type electric machine provided by the utility model, including stator core and it is set to its axial sides
Stator end plate；Stator core includes multiple segmented armatures for surrounding it circumferentially, offers and passes through on the end face of stator end plate
Wear its thickness direction, and the clamping through-hole with the end snap fit of segmented armature；In the clamping for clamping through-hole and segmented armature
Side is provided with the position limiting structure limited to the axial sliding of segmented armature.Stator core is installed in casing by stator end plate
It is interior, around multiple segmented armatures are arranged on stator core, it is surround on stator end plate and opens up multiple and segmented armature one-to-one correspondence
Clamping through-hole, segmented armature along the both ends of stator core axial direction extend into clamp through-hole in, meanwhile, in order to avoid segmentation electricity
Pivot, by the way that position limiting structure is arranged, is realized to segmented armature and stator end plate along stator core axial direction by deviating from clamping through-hole
Positioning.Segmented armature and stator end plate are clamped into fixation by clamping through-hole, stator core and magnet steel identity distance can be effectively reduced
From effective air gap, increase the torque density and efficiency of motor, so that stator core is at work, can directly pass through stator end plate
End face and rotor incude work, and medium is avoided to influence the magnetic property of stator core, further propose the sealing and curing of stator core
The electromagnetic performance of high disc type electric machine.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is provided to disc type electric machine to stator core construction for the utility model to main view；
Fig. 2 is the partial enlarged view of stator core fixed structure in Fig. 1；
Fig. 3 is the structural blast schematic diagram of Fig. 1.
Specific embodiment
The utility model discloses a kind of stator core constructions of disc type electric machine, improve the electricity of disc type electric machine electronics iron core
Magnetic property；The utility model additionally provides a kind of disc type electric machine.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1-Figure 3, Fig. 1 is provided to disc type electric machine to stator core construction for the utility model to main view；Fig. 2
For the partial enlarged view of stator core fixed structure in Fig. 1；Fig. 3 is the structural blast schematic diagram of Fig. 1.
The utility model provides a kind of stator core construction of disc type electric machine, including stator core 2 and is set to its axis
To the stator end plate (4,5) of two sides；Stator core 1 includes multiple around its segmented armature 21 circumferentially, stator end plate (4,
5) the clamping through-hole 41 with the end snap fit of segmented armature is offered on end face；It is additionally provided with the axis to segmented armature 21
The position limiting structure limited to sliding.Stator core 2 is installed in casing 1 by stator end plate (4,5), on stator core 2
Around multiple segmented armatures 21 are arranged, around opening up, multiple and segmented armature 21 is one-to-one to be blocked on stator end plate (4,5)
Through-hole 41 is filled, segmented armature 21 extend into along the axial both ends of stator core 2 and clamps in through-hole 41, meanwhile, in order to avoid dividing
Section armature, by the way that position limiting structure is arranged, is realized to segmented armature 21 and stator end plate (4,5) along stator by deviating from clamping through-hole
The axial positioning of iron core 2.Segmented armature 21 and stator end plate (4,5) are clamped into fixation by clamping through-hole, can be effectively reduced
Stator core and magnet steel identity distance increase the torque density and efficiency of motor from effective air gap, so that stator core 2 is at work,
End face and the rotor induction work that stator end plate (4,5) can directly be passed through, avoid medium to the sealing and curing of stator core, influence
The magnetic property of stator core further increases the electromagnetic performance of disc type electric machine.
In one specific embodiment of this case, position limiting structure includes the limit for stretching out in the radial end end face of segmented armature 21
Boss 22, and it is set to the inner face of stator end plate (4,5) and the step locating slot 42 with 22 snap fit of positive stop lug boss.Segmentation
The cross section of armature 21 radially is trapezium structure, and the inner face of the outer end face and inner ring that are located at 2 outer ring of stator core is equal
For arc structure, by the way that positive stop lug boss is arranged on the outer end face and inner face of segmented armature 21, positive stop lug boss setting is being segmented
Armature 21 and stator end plate (4,5) snap fit position, open up step locating slot 42 on the inner face of stator end plate (4,5),
It is fallen in step locating slot 42 by positive stop lug boss 22, realizes the limit axial along stator core 2 to segmented armature 21.
Specifically, positive stop lug boss 22 includes the outer ring positive stop lug boss 221 for being respectively arranged at 21 radially outer band of segmented armature, with
And it is set to the inner ring positive stop lug boss 222 of 21 radially inner band of segmented armature；Step locating slot 42 includes respectively to outer ring limit convex
The outer ring step groove of 221 snap fit of platform, and the inner ring step groove to 222 snap fit of inner ring positive stop lug boss.By being segmented
Outer ring positive stop lug boss 221 and inner ring positive stop lug boss 222 is respectively set in the inner ring and outer ring of armature 21 radially, by stator end plate
(4,5) are limited to the circumferential direction of segmented armature 21 and axially simultaneously, improve segmented armature 21 in the default level of stator core 2
True property.
In one specific embodiment of this case, the end of segmented armature 21 and the end face flush arrangement of stator end plate (4,5), limit
Position boss 22 is the positive stop lug boss of the arc structure circumferentially along segmented armature 21.Meanwhile in order to avoid in segmented armature
21 inner ring and outer ring increases the inhomogeneities that positive stop lug boss causes segmented armature magnetic field, sets positive stop lug boss 22 to along segmentation
The positive stop lug boss of the arc structure circumferentially of armature, accordingly, step limiting slot 42 are to be opened in stator end plate (4,5)
The arc steps locating slot of end face, increases the contact area of segmented armature and stator end plate, and guarantees the stability of securing structure.
In one specific embodiment of this case, stator end plate (4,5) includes being respectively arranged at determining for 2 axial ends of stator core
It is offered on sub- front end-plate 4 and stator end plate 5, stator front end-plate 4 and stator end plate 5 and 21 snap fit of segmented armature
Clamping through-hole 41.Stator core 2 is installed in casing 1 by stator front end-plate 4 and stator end plate 5, and it is same to clamp through-hole 41
When be arranged on stator front end-plate 4 and stator end plate 5, fixation is synchronized along its axial both ends to stator core 2, and mention simultaneously
The magnetic field strength of high 2 axial ends of stator core, further increases the magnetic field performance of electronics iron core.
In one specific embodiment of this case, the outer ring of stator core 2 is additionally provided with the machine that frame supports itself and stator end plate (4,5)
Shell 1 is additionally provided with the water annulus 3 circumferentially around stator core, opens up on casing 1 between casing 1 and stator core 2
There are the water inlet 31 and water outlet 32 of connection water annulus.Since the axial both ends of segmented armature 21 each in stator core 2 are equal
Concordant with stator end plate (4,5), the cooling cooling effect of the cold mode of oil is poor after solidification, and has water-cooling system for automobile etc.
The application of application environment, disc type electric machine needs independent design oil cooled system to unite, and structure is complicated.
By the way that the water annulus 3 around stator core arrangement, 3 ring of water annulus are arranged between casing 1 and stator core 2
Around the outer ring of stator core 2 one week, inner ring offseted with stator core 2, passed through the direct transmitting of water annulus 3 convenient for heat,
Its outer ring and the inner wall of casing 1 offset, and reduce its occupied space.The water inlet of connection water annulus 3 is opened up in the outer end face of casing 1
Mouthfuls 31 and water outlet 32 to cooling down inside stator core 2 by way of water cooling adapt to the application environment of water-cooling system,
And reduce stator core internal curing difficulty.The flat mouth structure in cross section position can be set in water annulus 3, and fin is arranged inside
33, to increase heat dissipation contact area.
In one specific embodiment of this case, it is disposed with coil 6 on segmented armature 21, between two coils 6 of arbitrary neighborhood
It is additionally provided with the thermally conductive sheet 7 between the radially-protruding line of stator core 21, the outer end of thermally conductive sheet 7 offsets with water annulus 3 between line.
Due to being arranged in the outer ring of stator core 2 using water annulus 3, stator core 2 can carry out heat close to its outer ring
Effectively heat dissipation, and stator core 2 close to its inner ring position since arrangement rotor is to structures such as bearings, generate heat for stator core more
Region, in order to radiate to stator core inner ring to effective, it is desirable to provide the radiator structure of connection stator core inner ring to outer ring.
Coil 6 is disposed on segmented armature 21, by the way that thermally conductive sheet 7 between line is arranged between any two coil 21, between line
Thermally conductive sheet 7 extends to its outer ring to inner ring along segmented armature 21, and by thermally conductive sheet 7 between line to the inner wall of outer ring and water annulus 3
It offsets, thermally conductive sheet 7 is to the width that should be not less than coil 6 in width direction between line, to provide maximum to heat dissipation area.By between line
Thermally conductive sheet 7 to heat transfer to water annulus 3, is effectively radiated 21 inner ring of stator core to disc type electric machine internal heat.
Further, the inner ring of stator core 2 is additionally provided with the annular thermally conductive sheet 8 to offset with the inner ring of coil, leads between line
Backing 7 and the outer ring of annular thermally conductive sheet 8 offset.The inner ring of stator core 2 is to be arranged rotor supports axis, in motor work,
The inner ring of stator core 2 can still generate more heat transfer, in order to realize heat dissipation of the water annulus 3 to 2 inner ring of stator core, by stator
The annular thermally conductive sheet 8 of inner ring setting of iron core 2, bearing of the inner ring of annular thermally conductive sheet 8 to accommodate rotor, annular thermally conductive sheet 8
Thermally conductive sheet 7 offsets between outer ring and line, and the heat that 2 inner ring of stator core generates can be distributed between each line by annular thermally conductive sheet 8
Thermally conductive sheet 7, and cooled down through the cooling water in water annulus 3, by the cooperation of thermally conductive sheet 7 between line and annular thermally conductive sheet 8, altogether
With realization to effective heat dissipation inside stator core.
Specifically, annular thermally conductive sheet 8 includes multistage along its multiple circular arc thermally conductive sheet 81 that circumferentially splicing cooperates.To reduce ring
Annular thermally conductive sheet 81 is divided into multistage, mutually spliced between every two sections by the preparation difficulty and assembly difficulty of shape thermally conductive sheet 8, from
And reduce the assembly difficulty of annular thermally conductive sheet entirety.
In one specific embodiment of this case, thermally conductive sheet 7 and annular thermally conductive sheet 8 are copper thermally conductive sheet or ceramic between line
Piece.Thermally conductive sheet and annular thermally conductive sheet between copper line are prepared using the high-termal conductivity of copper material, also can use high thermal conductivity
Non-metallic material for example thermal conductive ceramic prepare.Meanwhile the heat pipe preparation of high thermal conductivity can be used in the thermally conductive sheet of laminated structure, to
Heat on stator coil is effectively transmitted.
In one specific embodiment of this case, it is additionally provided in casing 1 and is respectively arranged at 2 axial sides of stator core, to it
Carry out the stator front end-plate 4 and stator end plate 5 of clamping limit；It is also filled between stator front end-plate 4 and stator end plate 5 solid
Tie the media filler layer of thermally conductive sheet between stator core, line, annular thermally conductive sheet and water annulus.After various components are assembled, need
Various components solidification is integral, by being led between stator front end-plate and stator end plate and between stator core, line
High thermal conductivity, curable media filler layer, preferably epoxies or silicon are filled between backing, annular thermally conductive sheet and water annulus
The thermally conductive casting glue of class fills the air gap between stator core various components inside, to guarantee to generate in coil and iron core
Heat can be effectively passed to thermally conductive sheet, and finally heat is taken away by cooling medium, in motor operation course, motor
Coil and iron core be maximum two pyrotoxins inside motor, the annular thermally conductive sheet of thermally conductive sheet and inner end can be fine between line
By the heat absorption in coil and iron core and it is effectively passed to the water annulus of motor, to mention good heat dissipation effect.
The stator core construction of the disc type electric machine provided in based on the above embodiment, the utility model additionally provide a discharge plate
Formula motor, including casing and the stator core being set in casing, the stator core which is equipped with has above-mentioned reality
The stator core construction of the disc type electric machine provided in example is provided.
Since the disc type electric machine uses the stator core construction of the disc type electric machine of above-described embodiment, so the disc type electric machine
Above-described embodiment is please referred to by the stator core construction bring beneficial effect of disc type electric machine.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of stator core construction of disc type electric machine, which is characterized in that including stator core and be set to its axial sides
Stator end plate；
The stator core includes multiple segmented armatures for surrounding it circumferentially, offers and passes through on the end face of the stator end plate
Its thickness direction is worn, and clamps through-hole with the end snap fit of the segmented armature；
It is provided on the inside of the clamping for clamping through-hole and the segmented armature and axial slide of the segmented armature is limited
The position limiting structure of position.
2. the stator core construction of disc type electric machine according to claim 1, which is characterized in that the position limiting structure includes stretching
For the positive stop lug boss of the end end face of the segmented armature radial direction, and be set to the stator end plate inner face and with it is described
The step locating slot of positive stop lug boss snap fit.
3. the stator core construction of disc type electric machine according to claim 2, which is characterized in that the positive stop lug boss includes point
It is not set to the outer ring positive stop lug boss of the segmented armature radially outer band, and is set to the interior of the segmented armature radially inner band
Enclose positive stop lug boss；The step locating slot includes the outer ring step groove to the outer ring positive stop lug boss snap fit and right respectively
The inner ring step groove of the inner ring positive stop lug boss snap fit.
4. the stator core construction of disc type electric machine according to claim 2, which is characterized in that the end of the segmented armature
With the end face flush arrangement of the stator end plate, the positive stop lug boss is the arc structure circumferentially along the segmented armature
Positive stop lug boss.
5. the stator core construction of disc type electric machine according to claim 1, which is characterized in that the stator end plate includes point
It is not set to the stator front end-plate and stator end plate of the stator core axial ends, the stator front end-plate and the stator
The clamping through-hole with the segmented armature snap fit is offered on end plate.
6. the stator core construction of disc type electric machine according to claim 1, which is characterized in that the outer ring of the stator core
It is additionally provided with the casing that frame supports itself and the stator end plate, is additionally provided between the casing and the stator core around described
The water annulus circumferentially of stator core offers the water inlet for being connected to the water annulus and water outlet on the casing
Mouthful.
7. the stator core construction of disc type electric machine according to claim 6, which is characterized in that arranged on the segmented armature
There is coil, be additionally provided with the thermally conductive sheet between the radially-protruding line of the stator core between two coils of arbitrary neighborhood,
The outer end of thermally conductive sheet offsets with the water annulus between the line.
8. the stator core construction of disc type electric machine according to claim 7, which is characterized in that the inner ring of the stator core
It is additionally provided with the annular thermally conductive sheet to offset with the inner ring of the coil, the outer ring of thermally conductive sheet and the annular thermally conductive sheet between the line
It offsets.
9. the stator core construction of disc type electric machine according to claim 8, which is characterized in that be also filled in the casing
Consolidate Jie of thermally conductive sheet between the stator end plate, the stator core, the line, the annular thermally conductive sheet and the water annulus
Matter filled layer.
10. a kind of disc type electric machine, including casing and the stator core being set in the casing, which is characterized in that the stator
Iron core has the stator core construction of the disc type electric machine as described in any one of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821444121.5U CN208674971U (en) | 2018-09-04 | 2018-09-04 | Disc type electric machine and its stator core construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821444121.5U CN208674971U (en) | 2018-09-04 | 2018-09-04 | Disc type electric machine and its stator core construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111585363A (en) * | 2020-06-12 | 2020-08-25 | 河北工业大学 | Soft magnetic composite material stator motor and cooling method thereof |
| CN114365387A (en) * | 2019-09-25 | 2022-04-15 | 舍弗勒技术股份两合公司 | Axial flux type motor |
| CN117713406A (en) * | 2024-02-06 | 2024-03-15 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core of squirrel-cage rotor and squirrel-cage rotor |
-
2018
- 2018-09-04 CN CN201821444121.5U patent/CN208674971U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114365387A (en) * | 2019-09-25 | 2022-04-15 | 舍弗勒技术股份两合公司 | Axial flux type motor |
| CN114365387B (en) * | 2019-09-25 | 2024-03-26 | 舍弗勒技术股份两合公司 | Axial flux electric machine |
| CN111585363A (en) * | 2020-06-12 | 2020-08-25 | 河北工业大学 | Soft magnetic composite material stator motor and cooling method thereof |
| CN117713406A (en) * | 2024-02-06 | 2024-03-15 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core of squirrel-cage rotor and squirrel-cage rotor |
| CN117713406B (en) * | 2024-02-06 | 2024-05-03 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core of squirrel-cage rotor and squirrel-cage rotor |
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Address after: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Patentee after: Zhejiang Panhu Power Technology Co., Ltd. Address before: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Patentee before: Core drive technology (Jinhua) Co., Ltd. |