CN201490861U - Four-phase permanent magnet generator - Google Patents
Four-phase permanent magnet generator Download PDFInfo
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- CN201490861U CN201490861U CN2009202041373U CN200920204137U CN201490861U CN 201490861 U CN201490861 U CN 201490861U CN 2009202041373 U CN2009202041373 U CN 2009202041373U CN 200920204137 U CN200920204137 U CN 200920204137U CN 201490861 U CN201490861 U CN 201490861U
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- permanent magnet
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Abstract
The utility model relates to a four-phase permanent magnet generator, which comprises a rotor component and a stator component. The rotor component comprises a rotor bracket, a rotor coil which is fixedly arranged on the rotor bracket and is made of magnetic material and a plurality of permanent magnets which closely cling to the rotor coil and are provided with N poles and S poles arranged at intervals; and the stator component comprises a stator bracket, a stator core which is fixedly arranged on the stator bracket, a plurality of winding poles which are arranged in a radiation shape along the periphery of the stator core and coil windings which are wound on the winding poles. The permanent magnets are arranged on the periphery of the winding poles, and when the rotor component rotates, the coil windings are in the magnetic fields generated by the permanent magnets; the winding poles are divided into four phases, each phase comprises n winding poles and 4n plus 2 permanent magnets, wherein n is a natural number more than or equal to 1. The utility model has the advantages of high utilization rate of the magnetic fields, stable and reliable performance, high ratio of power to volume weight, simple and compact structure and low output ripple current, and is particularly suitable for the ultra-portable, ultra-light and ultra-small equipment.
Description
Technical field
The utility model relates to generator, more particularly, relates to a kind of four phase permanent magnet generatores.
Background technology
Because on operation principle and the structural design, existing permanent magnet generator, particularly DC generator ubiquity complex structure, efficient is low, rotor speed is low, be rectified into direct current after ripple big.In addition, existing permanent magnet generator also exists power and the low defective of envelope-bulk to weight ratio, can not satisfy requirement portable or the extra small applied environment of ultralight.And, consume a large amount of copper, materials such as steel because bulking value is big.
The utility model content
The technical problems to be solved in the utility model is, and is low at said structure complexity, the efficient of prior art, rotor speed is low, be rectified into the big defective of ripple behind the direct current, and a kind of four brand-new phase permanent magnet generatores are provided.
The technical scheme that its technical problem that solves the utility model adopts is: constructs a kind of four phase permanent magnet generatores, comprises rotor assembly, stator module, wherein:
Described rotor assembly comprises rotor field spider, be fixed on the rotor circle of being made by permeability magnetic material on the described rotor field spider and be close to a plurality of permanent magnets of the described rotor circle inwall N utmost point, the extremely alternate setting of S;
A plurality of winding utmost points that described stator module comprises stator support, be fixed on stator core on the described stator support, radially distribute along described stator core circumference, be wrapped in described a plurality of winding extremely in the coil windings that extremely goes up of each winding;
Wherein:
Described magnet ring is around described winding utmost point periphery, and the installation site of described rotor field spider and stator support makes that described rotor circle is coaxial with described stator core, and when described rotor assembly rotated, described coil windings was in the magnetic field of described permanent magnet generation;
Described a plurality of winding utmost point is divided into four phases, and the quantity of every winding utmost point in mutually is n, and the quantity of described permanent magnet is 4n+2, and wherein n is the natural number more than or equal to 1.
In four phase permanent magnet generatores described in the utility model, also comprise the rotating shaft and the bearing that connect described rotor field spider and stator support, keep coaxial in order to guarantee described rotor assembly and stator module when the high speed rotating.
In four phase permanent magnet generatores described in the utility model, described four phase windings extremely between the power output lead-out wire of coil windings of each phase winding utmost point " mouth " font connect.
In four phase permanent magnet generatores described in the utility model, described four phase windings extremely in the adjacent two-phase of coil windings of each phase winding utmost point join end to end, and its tie point lays respectively on four jiaos of described " mouth " font, and is used for being connected with four line full-bridge rectifiers.
In four phase permanent magnet generatores described in the utility model, described four phase windings extremely between the power output lead-out wire of coil windings of each phase winding utmost point " ten " font connect.
In four phase permanent magnet generatores described in the utility model, described a plurality of winding utmost points and described stator core are formed by stacking by integrated thin silicon steel plates, or are formed by other high frequency permeability magnetic material global formations.
In four phase permanent magnet generatores described in the utility model, described rotor field spider is provided with the bindiny mechanism that can be connected with the rotating mechanism of prime mover, can send described rotor assembly to the rotation with prime mover.
In four phase permanent magnet generatores described in the utility model, described stator support is provided with the fixed mechanism that is used for fixing described stator module.
Implement four phase permanent magnet generatores of the present utility model, have following beneficial effect: electric machine structure is very simple, low cost of manufacture; Because the square wave of phase difference output 90 degree, so the direct voltage after the rectification does not have Dead Time, ripple is minimum, use the minimum filter of volume just can obtain very level and smooth direct current, because the permanent magnet and the winding utmost point are not corresponding multiple relations, but add 2 relation, so the ladder sense that rotor did not produce because of changes of magnetic field when rotating; And rotor rotates a circle, the number of times that every phase winding generates electricity respectively be the permanent magnet sum divided by 2, so the magnetic field utilance is high, the efficient height; So the power of generator and envelope-bulk to weight ratio are very high.
Implement the utility model,, be adapted to some special applications requirements, for example: generator of be used for aircraft, robot, carrying or the like keeping to produce that volume is littler, weight is lighter and cheap generating equipment under the rated power output condition.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Figure 1A is the exploded view according to four each parts of phase permanent magnet generator of the utility model one embodiment;
Figure 1B is the mechanical construction drawing of four phase permanent magnet generatores of Figure 1A illustrated embodiment;
Fig. 1 C is the A-A sectional view of Figure 1B;
Fig. 2 A is according to the utility model one embodiment, and at T1 constantly, permanent magnet also shows the method for winding of coil windings with respect to the schematic diagram of winding utmost point position among the figure;
Fig. 2 B is the embodiment according to Fig. 2 A, and at T2 constantly, permanent magnet is with respect to the schematic diagram of winding utmost point position;
Fig. 2 C is the embodiment according to Fig. 2 A, and at T3 constantly, permanent magnet is with respect to the schematic diagram of winding utmost point position;
Fig. 2 D is the embodiment according to Fig. 2 A, and at T4 constantly, permanent magnet is with respect to the schematic diagram of winding utmost point position.
Reference numeral indication component names:
The 1-rotor field spider
The 2-rotating shaft
3-rotor circle
The 4-permanent magnet
The 5-stator core
The 6-coil windings
The 7-stator support
The 8-bearing
The 9-winding utmost point
Bindiny mechanism on the 11-rotor field spider (installing hole)
Installing hole on the 12-stator support
Embodiment
Four phase permanent magnet generatores of the present utility model comprise rotor assembly and stator module.With reference to figure 1A-Fig. 1 C, in an embodiment of the present utility model, rotor assembly comprises rotor field spider 1, be fixed on the rotor circle of being made by permeability magnetic material on the rotor field spider 13 and be close to a plurality of permanent magnets 4 of the rotor circle 3 inwall N utmost points, the extremely alternate setting of S.A plurality of winding utmost points 9 that stator module comprises stator support 7, be fixed on stator core 5 on the described stator support 7, radially distribute along described stator core 5 circumference, be wrapped in a plurality of windings extremely in coil windings 6 on each winding utmost point 9.From Fig. 1 C as can be known, permanent magnet 4 is looped around the described winding utmost point 9 peripheries.In design, the installation site of rotor field spider 1 and stator support 7 makes described rotor circle 3 coaxial with described stator core 5, and when rotor assembly rotated, coil windings 6 was in the magnetic field that permanent magnet 4 produces.
In this embodiment, also use rotating shaft 2 and bearing 8 to connect rotor field spider 1 and stator supports 7, keep coaxial when the high speed rotating to guarantee rotor assembly and stator module.As another selection, when the power requirement of generator low, just rotating speed requires low, under the situation of low-cost simple application, also can not use rotating shaft 2 and bearing 8, and rotor field spider 1 is connected with prime mover, and stator support 7 is guaranteed that fixedly rotor assembly and stator module keep coaxial when rotating.
Shown in Figure 1A to Fig. 1 C, rotor field spider 1 is provided with the bindiny mechanism that can be connected with the rotating mechanism of prime mover, can send described rotor assembly to the rotation with prime mover.In the present embodiment, it is the connecting hole 11 that can link to each other with the internal combustion engine fan.In other embodiments, rotor field spider can also pass through transmission mechanisms such as belt pulley, gear train and links to each other with the rotating shaft of prime mover.
Described stator support 7 is provided with the fixed mechanism that is used for fixing described stator module.In the present embodiment, stator support 7 is provided with 4 installing holes 12 as fixed mechanism.In other embodiments, also can fix stator module by various available supporting structures.
In the utility model, a plurality of winding utmost points 9 of four phase permanent magnet generatores are divided into four phases, and the quantity of every winding utmost point 9 in mutually is n, and the quantity of described permanent magnet 4 is 4n+2, and wherein n is the natural number more than or equal to 1.What deserves to be mentioned is that every quantity n around the level utmost point in mutually can decide according to applied environment, processing technology level, manufacturing cost.Under the state-of-the art, take all factors into consideration factors such as cost, it is 1,2,3,4,5 or 6 preferable that n gets.The n value is high more, and it is complicated more to wind the line, but the magnetic field utilance is high more.
Design of the present utility model is, make the quantity total amount of the permanent magnet on the generator amature assembly extremely Duo 2 than the winding on the stator core, making always has a pair of permanent magnet (this to permanent magnet be separated by 180 degree) extremely corresponding with a pair of winding of stator core constantly at each of rotor assembly rotation; And the winding on the stator core extremely sum be four multiple, be 4n, wherein n is the natural number more than or equal to 1: 4n+2 permanent magnet is fixed on the inner surface of magnetic conduction rotor circle, and adjacent permanent magnet polarity is opposite, be N utmost point S interpolar every arrangement, form permanent-magnetic outer rotor.When the p-m rotor high speed rotating, action of centrifugal force can make permanent magnet firmly be adjacent to magnetic conduction rotor circle, just can not become flexible at high rotating speed by steady operation so permanent magnet is need not special process fixing, to obtain higher power output.Rotor whenever rotates a circle, and the number of times that each phase winding generates electricity respectively (frequency) is that permanent magnet sum (4n+2) is divided by 2; And the square wave of phase difference output 90 degree.
Its operation principle is, the rotor field spider in the four phase permanent magnet generatores can be connected to power take-off (being prime mover), and under it drove, rotor assembly rotated and forms rotating magnetic field; Make the stator core winding flux change that is made of four multiple and generate electricity, the voltage waveform that sends is the square wave of phase difference 90 degree, through becoming the minimum direct current of ripple after the four line full-bridge rectification.
Shown in Fig. 2 A-Fig. 2 D, in the present embodiment, 16 winding utmost points 9 on the stator core 5 are divided into four phases.Wherein every group of adjacent coil windings in the four mutually identical coil windings 6 joins end to end, the rule successively of four utmost points on stator core 5 respectively, its phase difference is 90 degree, by " mouth " type connection, the tie point of every two adjacent groups coil windings 6 (i.e. four of " mouth " angles) goes between respectively and comes out to connect four line full-bridge rectifiers, forms four phase permanent magnet generatores.The quantity total amount of epitrochanterian permanent magnet 4 is than more than 9 two of the winding utmost points on the stator core 5 (promptly amount to 18), and a pair of S, N permanent magnet 4 180 degree of being separated by are corresponding with the winding utmost point 9 of stator core 5.
Shown in Fig. 2 A, at T1 constantly, rotor assembly rotates to this position: a pair of permanent magnet is over against 5#, the 13# winding utmost point, that is, the coil windings that extremely goes up of 5#, 13# winding is under the maximum field this moment, produces also maximum of induced electromotive force it on.
Shown in Fig. 2 B, at T2 constantly, rotor assembly rotates to this position: a pair of permanent magnet is over against 1#, the 9# winding utmost point, promptly, the coil windings that extremely goes up of 1#, 9# winding is in the maximum field place this moment, it is also maximum to produce induced electromotive force on it, and the coil windings that extremely goes up of 5#, 13# winding is in the minimum-B configuration place this moment, produces also minimum of induced electromotive force it on.
Shown in Fig. 2 C, at T3 constantly, rotor assembly rotates to the position constantly identical with T1, but because magnetic pole is opposite, so it is also opposite to produce the direction of induced electromotive force.
Shown in Fig. 2 D, at T4 constantly, rotor assembly rotates to the position constantly identical with T2, but because magnetic pole is opposite, so it is also opposite to produce the direction of induced electromotive force.
In a word, each always has a pair of permanent magnet (its 180 degree of being separated by) extremely corresponding with a pair of winding of stator core constantly, and a pair of permanent magnet is always arranged not corresponding to the winding utmost point, makes to generate induced electromotive force in turn in 16 coil windings.
In other embodiments, the quantity of the winding utmost point can be 4,8,12,20 on the stator core ..., be four multiple in a word, be 4n (n is the natural number more than or equal to 1), and 4n+2 piece permanent magnet is fixed on the inner surface of rotor circle, and adjacent permanent magnet polarity is opposite, and promptly N utmost point S interpolar is every arrangement.
In one embodiment, rotor field spider is fixed in the rotating shaft of power take-off, and stator support is fixed on the body of power take-off.During work, the rotating shaft of power take-off drives generator amature and rotates, i.e. rotor field rotation, and coil cutting magnetic line produces induced electromotive force, output DC after full-bridge rectification.
Except above-mentioned " mouth " font connects, can also connect by " ten " font.It is simple to it is pointed out that " mouth " font connects coiling, is rectified into direct current and need uses full-bridge rectifier; It is complicated slightly that " ten " font connects coiling, but a galvanic utmost point can be directly regarded at the center of " ten ", so use half bridge rectifier, can reduce the quantity of rectifier cell like this, simultaneously, when low-voltage, high-current output is used, can further improve efficient.
In four phase permanent magnet generatores of the present utility model, a plurality of winding utmost points 9 and described stator core 5 can by integrated thin silicon steel plates or glass not alloy be formed by stacking, perhaps can be by other high frequency permeability magnetic materials: form as global formations such as ferrites.Rotor circle 3 is made by permeability magnetic material, as iron, steel, nickel or strengthen the alloy material of magnetic conduction.Permanent magnet 4 materials can adopt iron-cobalt-nickel, aluminium cobalt nickel, neodymium iron boron etc.
Four phase permanent magnet generatores of the present utility model can be used as four phase mag-dynamoes or four phase permanent magnetism frequency-changing AC generators.Having the advantage that volume is little, in light weight, simple in structure, rotor speed is high, is efficient and the high generating equipment of magnetic field utilance.Its magnetic field makes full use of, stable and reliable for performance, power and envelope-bulk to weight ratio are big, simple and compact for structure, it is little, easy to use to take up space, the output ripple electric current is minimum, be specially adapted to the super portable and extra small occasion that requires of ultralight, and because volume is little, can save lot of materials as: copper, steel etc. help economizing on resources.
Use the utility model, can produce total weight (comprising engine) is 5 kilograms, the four-stroke gasoline generator that rated output power is 650 watts; Or weight (not comprising engine) is 1 kilogram, generator that rated output power 1 myriawatt spy's use turbine jet engine drives or the like.
Claims (8)
1. a phase permanent magnet generator comprises rotor assembly, stator module, it is characterized in that,
Described rotor assembly comprises rotor field spider (1), is fixed on the rotor circle of being made by permeability magnetic material on the described rotor field spider (1) (3) and a plurality of permanent magnets (4) of being close to described rotor circle (3) the inwall N utmost point, the extremely alternate setting of S;
A plurality of winding utmost points (9) that described stator module comprises stator support (7), be fixed on stator core (5) on the described stator support (7), radially distribute along described stator core (5) circumference, be wrapped in the coil windings (6) on each winding utmost point (9) in described a plurality of winding utmost points (9);
Wherein:
Described permanent magnet (4) is looped around the described winding utmost point (9) periphery, the installation site of described rotor field spider (1) and stator support (7) makes described rotor circle (3) coaxial with described stator core (5), and when described rotor assembly rotated, described coil windings (6) was in the magnetic field of described permanent magnet (4) generation;
Described a plurality of winding utmost points (9) are divided into four phases, and the quantity of every winding utmost point (9) in mutually is n, and the quantity of described permanent magnet (4) is 4n+2, and wherein n is the natural number more than or equal to 1.
2. four phase permanent magnet generatores according to claim 1, it is characterized in that, also comprise the rotating shaft (2) and the bearing (8) that connect described rotor field spider (1) and stator support (7), coaxial in order to guarantee the maintenance when the high speed rotating of described rotor assembly and stator module.
3. four phase permanent magnet generatores according to claim 1 and 2 is characterized in that, described four phase windings extremely between the power output lead-out wire of coil windings (6) of each phase winding utmost point " mouth " font connect.
4. four phase permanent magnet generatores according to claim 3, it is characterized in that, described four phase windings extremely in the adjacent two-phase of coil windings (6) of each phase winding utmost point join end to end, and its tie point lays respectively on four jiaos of described " mouth " font, and is used for being connected with four line full-bridge rectifiers.
5. four phase permanent magnet generatores according to claim 1 and 2 is characterized in that, described four phase windings extremely between the power output lead-out wire of coil windings (6) of each phase winding utmost point " ten " font connect.
6. four phase permanent magnet generatores according to claim 1 and 2 is characterized in that, described a plurality of winding utmost points (9) are formed by stacking by integrated thin silicon steel plates with described stator core (5), or are formed by other high frequency permeability magnetic material global formations.
7. four phase permanent magnet generatores according to claim 1 and 2 is characterized in that, described rotor field spider (1) is provided with the bindiny mechanism (11) that can be connected with the rotating mechanism of prime mover, can send described rotor assembly to the rotation with prime mover.
8. four phase permanent magnet generatores according to claim 1 and 2 is characterized in that, described stator support (7) is provided with the fixed mechanism (12) that is used for fixing described stator module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041373U CN201490861U (en) | 2009-08-27 | 2009-08-27 | Four-phase permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041373U CN201490861U (en) | 2009-08-27 | 2009-08-27 | Four-phase permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490861U true CN201490861U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202041373U Expired - Lifetime CN201490861U (en) | 2009-08-27 | 2009-08-27 | Four-phase permanent magnet generator |
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| CN (1) | CN201490861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997372B (en) * | 2009-08-27 | 2012-05-30 | 刘则锋 | Four-phase permanent magnet generator |
-
2009
- 2009-08-27 CN CN2009202041373U patent/CN201490861U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997372B (en) * | 2009-08-27 | 2012-05-30 | 刘则锋 | Four-phase permanent magnet generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090827 |