CN202309447U - High-capacity transverse flux permanent magnet wind driven generator having double-C stator and double-disc rotor - Google Patents
High-capacity transverse flux permanent magnet wind driven generator having double-C stator and double-disc rotor Download PDFInfo
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- CN202309447U CN202309447U CN2011204246905U CN201120424690U CN202309447U CN 202309447 U CN202309447 U CN 202309447U CN 2011204246905 U CN2011204246905 U CN 2011204246905U CN 201120424690 U CN201120424690 U CN 201120424690U CN 202309447 U CN202309447 U CN 202309447U
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Abstract
The utility model relates to a high-capacity transverse flux permanent magnet wind driven generator having a double-C stator and a double-disc rotor. It is characterized in that the high-capacity transverse flux permanent magnet wind driven generator includes the stator (D) and the rotor (Z). The rotor (Z) connects with the stator (D) through a bearing (8). The stator includes a fixed shaft (D1), a non-magnetic material cylinder (D2), a U-shaped stator core and an armature winding (D4). The non-magnetic material cylinder (D2) is fixed on the fixed shaft (D1). Two groups of U-shaped stator iron cores are installed in the non-magnetic material cylinder (D2). The stator iron cores include the first group of the stator iron core (D31) and a second group of the stator iron core (D32). The first group of the stator iron core (D31) and the second group of the stator iron core (D32) are arranged oppositely. The first group of the stator iron core (D31) and the second group of the stator iron core (D32) are spaced with a pole pitch. The high-capacity transverse flux permanent magnet wind driven generator having the double-C stator and the double-disc rotor in the utility model can reduce magnetic resistance of a magnetic return path effectively, thereby improving the utilization rate of motor flux.
Description
Technical field
The utility model relates to a kind of transverse magnetic flux generator, the particularly a kind of high-performance of three air gaps and three stator transverse magnetic flux permanent magnetism wind mill generators of big capacity external rotor in direct driving field of utilizing.
Background technology
Fossil energy the non-renewable and severe contamination of environment threatened human social develops the common recognition that clean energy resourcies such as new and renewable sources of energy have become global majority state energetically.Wind energy is carried out correlative study early in the renewable energy technologies, and technology is the most ripe, and economy is best.Whole world wind-powered electricity generation installation total capacity has broken through 230GW, and THE WIND ENERGY RESOURCES IN CHINA is abundant, and growth momentum is swift and violent, and exploitation prospect is wide.Wind-driven generator (Wind Generator) is the core equipment of wind power system, and it is electric directly to affect the efficient of wind-powered electricity generation power conversion and the cost and the reliability of system with quality mechanical performance.
According to Principle of Electric Engine, to reduce motor diameter, volume and weight under certain power prerequisite, just must increase electromagnetic force.Electromagnetic force is proportional to magnetic flux and electric current; In conventional radial magnetic flux and the axial-flux electric machine; The iron core of guiding magnetic flux and the lead of conduction current are in the same plane, and under the certain situation of motor diameter, it is long-pending conflicting with the increase cross-sectional area of conductor to increase core area.Transverse flux motor (Transverse Flux Motor-TFM) has solved this problem; Its armature winding and main magnetic circuit are structurally full decoupled; Therefore can amass electricity, the magnetic loading of confirming motor with the magnetic circuit size by independent as required adjustment coil section, obtain higher torque density.
In recent years, though lot of domestic and foreign research institution has carried out number of research projects to transverse flux motor, also exist some problems to demand urgently improving and solving.Existing transverse flux permanent magnetic motor is only limited to the radially perhaps axial one-sided opening of stator core, constitutes monophase machine.A stator core pole span is at interval arranged, and the rotor number of poles is the twice of stator poles, and space availability ratio is lower and leakage field is serious, and torque density also has very big room for promotion.On same armature, integrate two groups of stator cores and make electric machine structure compact more, therefore design this kind of big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator.
Summary of the invention
Technical problem:The utility model technical problem to be solved is: the big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator that a kind of external rotor pattern, high power density and high torque density are provided.
Technical scheme:For solve the problems of the technologies described above, the utility model provides a kind of big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator, this generator comprises stator and rotor; Rotor links to each other with stator through bearing.
Stator comprises fixed axis, non-magnet material cylinder, stator core of U type and armature winding;
Fixing non-magnet material cylinder on the fixed axis, the non-magnet material cylinder interior is installed the stator core of two groups of U types;
Stator core comprises first group of stator core, second group of stator core, and first group of stator core and second group of stator core are oppositely arranged, one times of pole span at interval between first group of stator core and the second group of stator core;
In the semi-enclosed slot of first group of stator core and second group of stator core, lay armature winding;
Rotor comprise rotor case, permanent magnet to, be embedded in the magnetic bridge in the rotor case; Wherein,
Permanent magnet is to comprising that first permanent magnet is to right with second permanent magnet; Magnetic bridge comprises first magnetic bridge and second magnetic bridge;
First permanent magnet is to being bonded on first magnetic bridge, and second permanent magnet is to being bonded on second magnetic bridge; First permanent magnet is to being oppositely arranged together with first magnetic bridge and first group of stator core, and second permanent magnet is to being oppositely arranged together with second magnetic bridge and second group of stator core.
Preferably, first group of stator core and second group of stator core are formed by silicon steel plate packing respectively.
Preferably, the logarithm of the first permanent magnet centering permanent magnet is the twice of first group of stator core number, and the logarithm of the second permanent magnet centering permanent magnet is the twice of second group of stator core number.
Preferably, total number of all magnetic bridges is identical with total logarithm of all permanent magnets; The number of first magnetic bridge is the twice of first group of stator core number, and the number of second magnetic bridge is the twice of second group of stator core number; Magnetic bridge is formed by silicon steel plate packing.
Preferably, the pole orientation of two permanent magnets of every pair of permanent magnet centering is opposite; Arbitrarily adjacent permanent magnet between the pole orientation of adjacent any two permanent magnets opposite.
Preferably, permanent magnet adopts NdFeB material.
Beneficial effect:Two interior cards of this motor outer rotor are embedded with a pair of permanent magnet respectively over against the position of stator core, and magnetic bridge is left in the inboard permanent magnet of the rotor case outside outside, thereby can reduce the magnetic resistance of magnetic loop effectively, thereby improves the utilance of motor magnetic flux.In addition, owing to adopt Circular Winding, spatially independent with stator poles, this structure significantly improves the space availability ratio of transverse magnetic flux, has improved the torque density of motor greatly.
Each stator core of this motor is measure-alike, and each rotor permanent magnet is also identical with the magnetic bridge size, and all available silicon steel plate packing forms, and processing and manufacturing is simple.Each stator core is fixed on the non-magnet material cylinder, and it is whole to form stator; Each rotor permanent magnet is placed on the non-magnet material external rotor shell, and it is whole to form rotor, and links to each other with motor fixing shaft with bearing.Because magnetic bridge adopts silicon steel plate packing, can reduce the leakage flux of motor effectively, thereby can improve the power factor of motor.
Description of drawings
Fig. 1 is big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator structural representation (one constitutes the unit);
Fig. 2 is the profile of big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator;
Fig. 3 is the rotor side surface permanent magnet layout plan of big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator;
Fig. 4 is main flux loop (half period the is in the opposite direction in addition) sketch map of big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator half period;
Generator component is more than arranged: stator D, rotor Z among the figure; Fixed axis D1, non-magnet material cylinder D2;
First group of stator core D31, second group of stator core D32; Armature winding D4; First group of permanent magnet to Z51, Z51`, second group of permanent magnet to Z52, Z52`; The first magnetic bridge Z61, the second magnetic bridge Z62; Rotor case Z7.
Embodiment
Below with reference to accompanying drawings the utility model is described.
The big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator of the utility model, this generator comprises stator D and rotor Z; Rotor Z links to each other with stator D through bearing 8.
Stator comprises fixed axis D1, non-magnet material cylinder D2, stator core of U type and armature winding D4;
Fixed axis D1 goes up fixedly non-magnet material cylinder D2, the stator core of two groups of U types of the inner installation of non-magnet material cylinder D2;
Stator core comprises first group of stator core D31, second group of stator core D32, and first group of stator core D31 and second group of stator core D32 are oppositely arranged, one times of pole span at interval between first group of stator core D31 and the second group of stator core D32;
In the semi-enclosed slot of first group of stator core D31 and second group of stator core 32, lay armature winding D4;
Rotor Z comprise rotor case Z7, permanent magnet to, be embedded in the magnetic bridge in the rotor case Z7; Wherein,
Permanent magnet to comprise first permanent magnet to Z51, Z51` and second permanent magnet to Z52, Z52`; Magnetic bridge comprises the first magnetic bridge Z61 and the second magnetic bridge Z62;
First permanent magnet is bonded on the first magnetic bridge Z61 Z51, Z51`, and second permanent magnet is bonded on the second magnetic bridge Z62 Z52, Z52`; First permanent magnet is oppositely arranged together with the first magnetic bridge Z61 and first group of stator core D31 Z51, Z51`, and second permanent magnet is oppositely arranged together with the second magnetic bridge Z62 and second group of stator core D32 Z52, Z52`.
First group of stator core D31 and second group of stator core D32 are formed by silicon steel plate packing respectively.
First permanent magnet is the twice of first group of stator core D31 number to the logarithm of permanent magnet among Z51, the Z51`, and second permanent magnet is the twice of second group of stator core D32 number to the logarithm of permanent magnet among Z52, the Z52`.
Total number of all magnetic bridges is identical with total logarithm of all permanent magnets; The number of the first magnetic bridge Z61 is the twice of first group of stator core D31 number, and the number of the second magnetic bridge Z62 is the twice of second group of stator core D32 number; Magnetic bridge is formed by silicon steel plate packing.
The pole orientation of two permanent magnets of every pair of permanent magnet centering is opposite; Arbitrarily adjacent permanent magnet between the pole orientation of adjacent any two permanent magnets opposite.The pole orientation of two permanent magnets of every pair of permanent magnet centering is opposite: first permanent magnet is opposite to the pole orientation of two permanent magnet Z51 of Z51, Z51`, Z51`; Second permanent magnet is opposite to two permanent magnet Z52 among Z52, the Z52`, Z52` pole orientation.
Arbitrarily adjacent permanent magnet between the pole orientation of adjacent any two permanent magnets also opposite: right previous of first permanent magnet to the permanent magnet Z51 among Z51, the Z51` with next opposite to the permanent magnet Z51` pole orientation among Z51`, the Z51; Right previous of second permanent magnet to the permanent magnet Z52 among Z52, the Z52` with next opposite to the permanent magnet Z52` pole orientation among Z52`, the Z52.
Permanent magnet adopts NdFeB material.
The big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator of the utility model is made up of internal stator, external rotor.Two groups of stator cores are measure-alike; Adopt the semi-enclosed slot structure, by silicon steel plate packing, each organizes iron core successively along fixed axis D1 axially open and in the opposite direction; Adjacent twice pole span at interval unshakable in one's determination in every group, iron core are fixed on the non-magnet material cylinder and link to each other with the generator fixed axis and form stator integral body.Inboard two cards of rotor are embedded with a pair of permanent magnet respectively over against the position of stator core, and every pair of permanent magnet magnetization is in the opposite direction, and permanent magnet adopts NdFeB material; Magnetic bridge is by silicon steel plate packing and be embedded in that to form rotor in the permanent magnet outside rotors shell whole, and rotor case adopts the steel manufacturing, and is simple in structure.
The big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator of the utility model is made up of stator, rotor.The semi-enclosed slot structure is adopted in stator core, to improve the space availability ratio of transverse magnetic flux, effectively utilizes magnetic flux, avoids the magnetic flux of stator core saturated.Each stator core is measure-alike, and is simple in structure, uses silicon steel plate packing, and is placed in the non-magnet material cylinder.Armature winding is placed in the stator core, constitutes stator integral body with stator core, non-magnet material cylinder.
Permanent magnet adopts NdFeB material; Every group of interior permanent magnet unit of three groups of permanent magnets all laid in pairs; And the permanent magnet in two permanent magnets of every pair of permanent magnet unit and every group between adjacent any two permanent magnet magnetic extreme directions be contrary, every group of permanent magnet logarithm all is the twice of corresponding stator core number.The permanent magnet outside is embedded with magnetic bridge and is attached thereto and connects, and magnetic bridge is measure-alike, by silicon steel plate packing, reduces the eddy current loss of motor.Magnetic bridge embeds in the external rotor shell, and the external rotor shell is made by non-magnet material, and it is whole to constitute rotor.
Rotor is connected with the fixed axis of stator through bearing.
Motor transverse magnetic flux principle is following:
Transverse flux motor (Transverse Flux Motor-TFM) is different with armature cross section mutual restriction with the iron core of conventional radial and axial direction electric machine; Its armature winding and main magnetic circuit are structurally full decoupled, therefore can the long-pending and magnetic circuit size of independent as required adjustment coil section.The transverse magnetic flux structure allows to adopt more magnetic pole, can obtain higher power and torque density.
The threephase generator operation logic is following:
The utility model generator is done the three-phase generation operation time only need arrange that the stator core between any two unit differs 120 degree electrical degrees in three unit of generator; Perhaps differing 120 degree electrical degrees in three unit of generator between the permanent magnet between any two unit gets final product.
Like Fig. 1, shown in 2, for single-phase generator, the physical model of this big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator mainly consists of the following components: stator core, armature winding, permanent magnet, magnetic bridge.Each is organized stator and is made up of the stator core of the semi-enclosed slot structure of silicon steel plate packing, and the stator core consistent size evenly is installed on the non-magnet material cylinder, two groups of shared armature winding of stator core, and it is whole to form stator.External rotor is made up of the permanent magnet, the magnetic bridge of silicon steel plate packing and the external rotor shell of non-magnet material manufacturing that adopt NdFeB material.Two interior cards of external rotor are embedded with a pair of permanent magnet respectively over against the position of stator core, and the adjacent permanent magnet pole orientation is opposite, and permanent magnet outside rotors shell is embedded with magnetic bridge and forms rotor integral body.External rotor links to each other with the generator fixed axis through bearing.
This generator is a single-phase generator; Must make three identical electric generator structures vertically side by side and make and differ 120 degree electrical degrees between the stator core in each structure during three-phase operation, perhaps differ 120 degree electrical degrees between the rotor permanent magnet in each structure.
The above is merely the preferred embodiments of the utility model; The protection range of the utility model does not exceed with above-mentioned execution mode; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (6)
1. one kind big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator, it is characterized in that: this generator comprises stator (D) and rotor (Z); Rotor (Z) links to each other with stator (D) through bearing (8);
Stator comprises fixed axis (D1), non-magnet material cylinder (D2), stator core of U type and armature winding (D4);
Fixed axis (D1) is gone up fixedly non-magnet material cylinder (D2), the stator core of two groups of U types of the inner installation of non-magnet material cylinder (D2);
Stator core comprises first group of stator core (D31), second group of stator core (D32); First group of stator core (D31) is oppositely arranged with second group of stator core (D32), one times of pole span in interval between first group of stator core (D31) and the second group of stator core (D32);
In the semi-enclosed slot of first group of stator core (D31) and second group of stator core (32), lay armature winding (D4);
Rotor (Z) comprise rotor case (Z7), permanent magnet to, be embedded in the magnetic bridge in the rotor case (Z7); Wherein,
Permanent magnet to comprise first permanent magnet to (Z51, Z51`) and second permanent magnet to (Z52, Z52`); Magnetic bridge comprises first magnetic bridge (Z61) and second magnetic bridge (Z62);
First permanent magnet is bonded on first magnetic bridge (Z61) (Z51, Z51`), and second permanent magnet is bonded on second magnetic bridge (Z62) (Z52, Z52`); First permanent magnet is oppositely arranged together with first magnetic bridge (Z61) and first group of stator core (D31) (Z51, Z51`), and second permanent magnet is oppositely arranged together with second magnetic bridge (Z62) and second group of stator core (D32) (Z52, Z52`).
2. big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator according to claim 1, it is characterized in that: first group of stator core (D31) and second group of stator core (D32) are formed by silicon steel plate packing respectively.
3. big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator according to claim 1; It is characterized in that: first permanent magnet is the twice of first group of stator core (D31) number to the logarithm of permanent magnet in (Z51, Z51`), and second permanent magnet is the twice of second group of stator core (D32) number to the logarithm of permanent magnet in (Z52, Z52`).
4. big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator according to claim 1, it is characterized in that: total number of all magnetic bridges is identical with total logarithm of all permanent magnets; The number of first magnetic bridge (Z61) is the twice of first group of stator core (D31) number, and the number of second magnetic bridge (Z62) is the twice of second group of stator core (D32) number; Magnetic bridge is formed by silicon steel plate packing.
5. big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator according to claim 1, it is characterized in that: the pole orientation of two permanent magnets of every pair of permanent magnet centering is opposite; Arbitrarily adjacent permanent magnet between the pole orientation of adjacent any two permanent magnets opposite.
6. big capacity double C-type stator double plate rotor transverse magnetic flux permanent magnetism wind mill generator according to claim 1 is characterized in that: permanent magnet adopts NdFeB material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204246905U CN202309447U (en) | 2011-11-01 | 2011-11-01 | High-capacity transverse flux permanent magnet wind driven generator having double-C stator and double-disc rotor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204246905U CN202309447U (en) | 2011-11-01 | 2011-11-01 | High-capacity transverse flux permanent magnet wind driven generator having double-C stator and double-disc rotor |
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| Publication Number | Publication Date |
|---|---|
| CN202309447U true CN202309447U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204246905U Withdrawn - After Issue CN202309447U (en) | 2011-11-01 | 2011-11-01 | High-capacity transverse flux permanent magnet wind driven generator having double-C stator and double-disc rotor |
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| CN (1) | CN202309447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361379A (en) * | 2011-11-01 | 2012-02-22 | 东南大学 | Large-capacity double-C-type stator double-disk type rotor transverse magnetic flux permanent magnet wind-driven generator |
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2011
- 2011-11-01 CN CN2011204246905U patent/CN202309447U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361379A (en) * | 2011-11-01 | 2012-02-22 | 东南大学 | Large-capacity double-C-type stator double-disk type rotor transverse magnetic flux permanent magnet wind-driven generator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130320 |
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| RGAV | Abandon patent right to avoid regrant |