CN209642521U - A kind of multi-phase permanent linear electric generator - Google Patents
A kind of multi-phase permanent linear electric generator Download PDFInfo
- Publication number
- CN209642521U CN209642521U CN201920313278.2U CN201920313278U CN209642521U CN 209642521 U CN209642521 U CN 209642521U CN 201920313278 U CN201920313278 U CN 201920313278U CN 209642521 U CN209642521 U CN 209642521U
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- China
- Prior art keywords
- stator
- winding
- slot
- linear electric
- mover
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Abstract
The utility model discloses a kind of multi-phase permanent linear electric generators, including stator, mover；The stator includes stator core and stator winding；Mover includes mover iron core and magnet ring；There is mN annular groove in stator core outer surface；Stator winding includes multiple Circular Windings.The utility model has the following beneficial effects: the utility model uses new winding mode, winding coefficient is improved, greatly improves and be often combined to electromotive force amplitude；Single-phase winding is only placed in stator coring groove, is eliminated phase insulation material, while can avoid generator phase fault, is increased system reliability；Power density with higher, and be simple to manufacture, be easy to embed the wire, generator uses permanent magnet excitation, and excitation loss is not present.
Description
Technical field
The utility model belongs to linear electric generator technical field, main more particularly to a kind of multi-phase permanent linear electric generator
To be applied to wave-activated power generation field.
Background technique
Wave energy has many advantages, such as practicability, predictability, duration and high power density, is a kind of very attractive
Renewable energy, therefore many researchers are studied using wave-energy power generation expansion both at home and abroad.Wave energy generating system at present
Mostly rotating electric machine is driven to generate electricity by intermediate gearing, structure is complicated, manufacture maintenance cost is high and transfer efficiency is low.
Straight wave electric power system of driving would solve these problems by permanent magnet linear generator.In straight drive system, straight line hair
Motor is directly coupled with floating drum, eliminates intermediate gearing, structure is simple and improves the reliability of system and energy conversion
Efficiency.Currently, utilizing wave motion to drive generator based on permanent magnet linear generator directly drives wave electric power system by float-type
Mover makees straight reciprocating motion, and magnetic force line cutting stator winding generates induced electromotive force.Not due to generator rotor movement velocity
Stablize, therefore the potential frequency generated in stator winding is not fixed, and needs to convert the electric energy of sending to using power electronic equipment
Electric energy can be supplied electrical equipment later or be transported to power grid by the power frequency electric of 50Hz.Cylinder type permanent magnet linear generator can pole
Big reduction normal force and elimination End winding, improves the stability and efficiency of system.But existing cylindrical permanent is straight
The problem that there are still winding utilizations is low for line generator, volume is big, output power is small.
A kind of patent " wave-energy power generation dress based on series connection straight line magnetic gear motor of patent No. CN201410261932.1
Set " a kind of power generator is disclosed, the stator winding in the patent uses fractional-slot concentratred winding, though make every phase potential wave
Shape is more sinusoidal, but there are phase differences for the induced potential of each coil in every phase, cause combined potential amplitude to be declined, reduce hair
The output power of motor.
Utility model content
The purpose of this utility model is that, overcomes the deficiencies of the prior art and provide a kind of multi-phase permanent linear electric generator.
Purpose is to adapt to the requirement of direct-drive wave power generation system, further increases the power density of generator, reduce generator
Manufacturing cost is increased economic efficiency.
In order to achieve the above objectives, the utility model is implemented according to following technical scheme:
A kind of multi-phase permanent linear electric generator, including stator, mover, the stator include stator core and stator winding；
There is perforative axis hole at the stator core center；Stator axis is fixed in the axis hole；
There is mN annular groove in the stator core outer surface；M is the number of phases, and value is the integer more than or equal to 3；N is unit
Number of modules, value are positive integer；Adjacent every m slot is a unit module；
The stator winding includes multiple Circular Windings；The Circular Winding embeds in a ring groove；In each annular groove
Circular Winding head end in the ipsilateral of stator core；Each Circular Winding direction of winding is all the same；
The mover includes mover iron core and magnet ring；The mover iron core is cylindrical shape, is covered in stator exterior, and with
Stator core is concentric；The magnet ring is attached to mover iron core inner surface along axial direction；
There are air gaps between the stator core and magnet ring.
Further, the Circular Winding connection structure in annular groove is as follows: the tail end and m+1 slot of the first slot Circular Winding
The head end of Circular Winding is connected, and the tail end of the second slot Circular Winding is connected with the head end of m+2 slot Circular Winding, third grooved ring shape
The tail end of winding is connected with the head end of m+3 slot Circular Winding ....
Further, the pole span between magnet ring is；The slot pitch of the annular groove of stator core is；Pole spanWith
Slot pitchMeet。
Further, the Circular Winding connection structure between each unit module is constant.
Further, the annular groove is rectangular aperture slot.
Further, magnet ring one of is magnetized using radial magnetizing, axial charging, Halbach.
Compared with prior art, the utility model has the following beneficial effects:
1, the utility model uses new winding mode, and winding coefficient is improved, greatly improves and be often combined to electromotive force
Amplitude.Compared with fractional-slot concentratred winding, although the sine of output voltage waveforms is slightly lower, fundamental voltage amplitude is improved, therefore
Greatly improve the output power of generator.
2, the utility model uses new winding mode, only places single-phase winding in stator coring groove, eliminates phase insulation material
Material, while can avoid generator phase fault, increase system reliability.
3, the permanent magnet linear generator of the utility model power density with higher, and be simple to manufacture, be easy to embed the wire, it sends out
Motor uses permanent magnet excitation, and excitation loss is not present.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model；
Fig. 2 is the axial cross-sectional views (arrow indicates magnet ring magnetizing direction in figure) of the utility model；
Fig. 3 is the three-dimensional structure diagram of the utility model magnet ring (arrow indicates magnetic line of force direction)；
Fig. 4 is the schematic diagram (arrow expression current direction) of the utility model stator core and Circular Winding.
In figure: 1, mover iron core；2, magnet ring；3, air gap；4, Circular Winding；5, stator core；6, stator axis；7, axis
Hole；8, annular groove.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings and specific embodiments, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
As shown in Figures 1 to 4, a kind of multi-phase permanent linear electric generator, including stator, mover, stator include stator core 5
And stator winding.
There is perforative axis hole 7 at 5 center of stator core, and stator axis 6 is fixed in axis hole 7, and stator core 5 passes through stator axis 6
It is fixed.It circumferentially opens there are six annular groove 85 outer surface of stator core；Each annular groove 8 is rectangular aperture slot.Stator
Winding includes six Circular Windings 4；Circular Winding 4 is embedded respectively in six annular grooves 8.
Mover includes mover iron core 1 and six magnet rings 2.Mover iron core 1 is cylindrical shape, is covered in stator exterior, and with
Stator core 5 is concentric；Magnet ring 2 is axially aligned to be pasted onto 1 inner surface of mover iron core.Magnet ring 2 is filled using radial
Magnetic, adjacent 2 magnetizing direction of magnet ring differ 180 °, the magnetic line of force direction of magnet ring 2 from top to bottom radially,
It is staggered inwards.
There are air gaps 3 between stator core 5 and magnet ring 2.Stator core 5 and mover iron core 1 are all made of silicon steel sheet stack
It presses；Magnet ring 2 is made of NdFeB material；Stator axis 6 is made of alloy steel material.
Wherein, the pole span of magnet ring 2With the slot pitch of stator core 5Meet。
In the present embodiment, number of phases m=3, respectively A phase, B phase, C phase；Unit module number N=2, respectively first unit mould
Block, second unit module；I.e. each unit module is three slot of the two poles of the earth.4 head end of Circular Winding in each annular groove 8 is fixed
Sub- iron core 5 it is ipsilateral；Each 4 direction of winding of Circular Winding is all the same.
Belong to first unit module has A1, B1, C1, X1, Y1, Z1, belong to second unit module have A2, B2, C2,
X2,Y2,Z2.Wherein A1, B1, C1, A2, B2, C2 are the head end of stator winding, in the ipsilateral of stator core；X1,Y1,Z1,
X2, Y2, Z2 are the tail end of stator winding.The Circular Winding connection type of A phase is A1-X1-A2-X2；The Circular Winding of B phase connects
Mode is B1-Y1-B2-Y2；The Circular Winding connection type of C phase is C1-Z1-C2-Z2.A, B, C three-phase herein annular around
Star-like connection mode can be used in group, and triangle connection type can also be used.
It, can be with the quantity of adding unit module appropriate actual in use, according to different use requirements.
The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model
The technology deformation that art scheme is made, each falls within the protection scope of the utility model.
Claims (6)
1. a kind of multi-phase permanent linear electric generator, including stator, mover, the stator include stator core and stator winding；Its
It is characterized in that:
There is perforative axis hole at the stator core center；Stator axis is fixed in the axis hole；
There is mN annular groove in the stator core outer surface；M is the number of phases, and value is the integer more than or equal to 3；N is unit module
Number, value is positive integer；Adjacent every m slot is a unit module；
The stator winding includes multiple Circular Windings；The Circular Winding embeds in a ring groove；Ring in each annular groove
Shape winding head end is in the ipsilateral of stator core；Each Circular Winding direction of winding is all the same；
The mover includes mover iron core and magnet ring；The mover iron core is cylindrical shape, is covered in stator exterior, and and stator
Iron core is concentric；The magnet ring is attached to mover iron core inner surface along axial direction；
There are air gaps between the stator core and magnet ring.
2. a kind of multi-phase permanent linear electric generator according to claim 1, it is characterised in that:
Circular Winding connection structure in annular groove is as follows:
The tail end of first slot Circular Winding is connected with the head end of m+1 slot Circular Winding, the tail end and m of the second slot Circular Winding
The head end of+2 slot Circular Windings is connected, and the tail end of third slot Circular Winding is connected with the head end of m+3 slot Circular Winding ....
3. a kind of multi-phase permanent linear electric generator according to claim 1, it is characterised in that: the pole span between magnet ring
For；The slot pitch of the annular groove of stator core is；Pole spanWith slot pitchMeet。
4. a kind of multi-phase permanent linear electric generator according to claim 1, it is characterised in that: between each unit module
Circular Winding connection structure is constant.
5. a kind of multi-phase permanent linear electric generator according to claim 1, it is characterised in that: the annular groove is opened for rectangle
Mouth slot.
6. a kind of multi-phase permanent linear electric generator according to claim 1, it is characterised in that: magnet ring is filled using radial
Magnetic, axial charging, Halbach one of magnetize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313278.2U CN209642521U (en) | 2019-03-13 | 2019-03-13 | A kind of multi-phase permanent linear electric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313278.2U CN209642521U (en) | 2019-03-13 | 2019-03-13 | A kind of multi-phase permanent linear electric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209642521U true CN209642521U (en) | 2019-11-15 |
Family
ID=68495911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920313278.2U Expired - Fee Related CN209642521U (en) | 2019-03-13 | 2019-03-13 | A kind of multi-phase permanent linear electric generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209642521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130264A (en) * | 2020-01-16 | 2020-05-08 | 湖北蕴盈科技有限公司 | Vehicle-mounted mobile endurance power generation and supply device |
-
2019
- 2019-03-13 CN CN201920313278.2U patent/CN209642521U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130264A (en) * | 2020-01-16 | 2020-05-08 | 湖北蕴盈科技有限公司 | Vehicle-mounted mobile endurance power generation and supply device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 Termination date: 20210313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |