CN201846157U - Low-reluctance generator - Google Patents
Low-reluctance generator Download PDFInfo
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- CN201846157U CN201846157U CN2010206078295U CN201020607829U CN201846157U CN 201846157 U CN201846157 U CN 201846157U CN 2010206078295 U CN2010206078295 U CN 2010206078295U CN 201020607829 U CN201020607829 U CN 201020607829U CN 201846157 U CN201846157 U CN 201846157U
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- 238000004804 winding Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000013459 approach Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000002153 concerted effect Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Abstract
The utility model relates to a low-reluctance generator. X magnets or electromagnets on a rotor of the generator alternate the polarities in the circumferential direction and are arranged in parallel; and Y=X+N stator windings on a stator are arranged in parallel in the circumferential direction, wherein X is an even number more than or equal to 4, N is an positive integer and expresses the number for forming balance areas. By using the generator with the structure, each magnet or electromagnet generates magnetic attractions in different directions so as to form one or more balance areas and the resultant force of the magnetic reluctance is zero or close to zero so as to improve the efficiency of the generator.
Description
Technical field
The utility model relates to a kind of low reluctance generator.
Background technology
Generator is the plant equipment that a kind of energy conversion with other form becomes electric energy.The rule of available engine structure is: constitute magnetic circuit and the circuit that carries out electromagnetic induction mutually with magnetic conduction and electric conducting material, to produce electromagnetic power, realize power conversion.Existing generator comprises stator and rotor, and wherein, stator comprises that stator core and the line that is wrapped on each stator core hold group, and rotor comprises rotor core and is wrapped in the excitation winding on each rotor core or is installed in epitrochanterian permanent magnet.When static state, the position of each stator core on the stator is corresponding with the position of rotor core or epitrochanterian permanent magnet, and promptly the quantity of stator core equates with the quantity of rotor core or epitrochanterian permanent magnet.Though the generator of this kind structure can utilize electric excitation or permanent magnet generating, but when mechanical force promotes rotor rotation generation rotating magnetic field, the electromagnetic field that rotor core is produced under the effect of exciting current or the magnetic field of permanent magnet can produce powerful attraction to stator core, and the direction of this attraction is opposite with the direction of rotor rotation, promptly this attraction can hinder rotor rotation, so be referred to as reluctance force.According to pointing out in the interrelated data report that the reluctance force of existing generator can make the efficient of generator reduce 30-50%.
Chinese patent has been announced a kind of name for No. 101197550 and has been called " magnetic isolation generator ".This generator comprises a cylindrical magnet and the induction coil that keeps at a certain distance away with this cylindrical magnet, and the iron plate blade is installed between cylindrical magnet and induction coil, and each iron plate blade is connected with three fans being provided with on the centre bearing respectively.This generator utilizes central shaft to drive the iron plate blade rotation, by the iron plate blade cuts magnetic line of force, so that produce induced current on the induction coil when work.Its meaning is to want to utilize the light iron plate blade of rotating mass to reduce actuating force, and is energy-conservation to realize.Though the lighter weight of iron plate blade, but because the position of cylindrical magnet and induction coil is corresponding equally, it is reluctance force that cylindrical magnet all can produce powerful attraction to the iron core of induction coil and iron plate blade, and this reluctance force is opposite with the direction of rotor rotation power, so, also be limited even this generator efficiency improves.
In addition, to be called " having the stator poles of arranging vertically and/or the generator of rotor pole " also be to provide a kind of scheme for Chinese patent 1792016A number disclosed name.The rotor of this generator comprises a plurality of permanent magnet and cylindrical backboards that are arranged on around the shaft on the loop configuration, and magnetic element replaces continuously along interior ring surface magnetic polarity; Stator comprises a plurality of core packets, is wound with stator winding on each core packet, and each stator segment comprises that a plurality of edges are parallel to the utmost point that rotor shaft direction is alignd mutually.Its meaning is to want to make each stator poles can be magnetized on the surface, air gap place of interior pole-face to go out a kind of magnetic polarity, and pole-face shows opposite magnetic polarity outside it, and then can concentrate the magnetic flux of radial direction.Though the magnetic element on this generator amature replaces continuously along interior ring surface magnetic polarity, but, rotor magnetic pole also changes because alternately changing the polarity that can not make stator core segment continuously thereupon, even the magnetic force that epitrochanterian permanent magnet produced can not cancelled out each other to the attraction alternate of stator core yet, so, this generator is not eliminated reluctance force, and its efficient can not get bigger raising.
Because the stator core of motor is to be made of ferromagnet, so epitrochanterian magnet or electromagnet all have very big attraction to stator core, this attraction is reluctance force, in machine field, this kind reluctance force is planned for the major part of motor load.The main cause that generator efficiency is low is caused by reluctance force, and it can make the efficient of generator reduce 30-50%.
Summary of the invention
The purpose of this utility model provides a kind of low reluctance generator that utilizes the mode that reduces reluctance force to solve the low problem of generator efficiency.
Magnet or electromagnet are installed on the rotor of the low reluctance generator that the utility model proposed, the stator winding that is wrapped on the stator core is installed on the stator, epitrochanterian magnet or electromagnet are at circumferencial direction polarity alternation and be equipped with X side by side, stator winding on the stator is equipped with Y=X+N side by side at circumferencial direction, wherein X is the even number more than or equal to 4, N is a positive integer, and N represents to form the quantity of equilibrium area.Because of the resultant direction of the attraction between epitrochanterian magnet or electromagnet and the stator core on the line in both centres, when the quantity of stator core during greater than the quantity of epitrochanterian magnet or electromagnet, the resultant direction of the attraction between each epitrochanterian magnet or electromagnet and the stator core changes, and this variation can cause the reluctance force in the generator to be zero or to approach zero.Described equilibrium area be meant magnet in this zone or electromagnet attract reluctance force that stator core produced make a concerted effort be zero or approach zero zone.In above-mentioned formula, the numerical value of N is identical with the quantity of equilibrium area, and promptly when N equaled 1, epitrochanterian all magnets can only form an equilibrium area; When N equaled 2, epitrochanterian magnet can form two equilibrium areas; When N equals 3, can form three equilibrium areas, the rest may be inferred.Because of stator core is made by silicon steel sheet or magnetic conductor thing, epitrochanterian magnet or electromagnet have powerful attraction to stator core, but, if the number of poles of stator winding manys N than the number of poles of epitrochanterian magnet or electromagnetism, in N zone, the making a concerted effort of the attraction that epitrochanterian magnet or electromagnet produce stator core is zero or approaches zero.
Described epitrochanterian magnet is plate shaped, magnets independently, and stator core is independently to be the rectangle iron core on open limit towards the limit of rotor, and this rectangle iron core is wound with stator winding with open limit relative edge.
Many group plate shaped, magnets are installed on the described rotor, and plate shaped, magnets is equipped with the I-shaped stator core of many groups along the radially installation of rotor on the stator on the same group, is separated with the spacing that allows plate shaped, magnets to pass between adjacent two I-shaped stator cores.
Described rotor has a cylinder that is limited by rotation axis, outer surface at this cylinder is equipped with one by one independently arc magnet, this arc magnet is identical along the polarity of the arc magnet of the axially-aligned of rotor, and is opposite along the polarity of the arc magnet of the arranged radially of rotor.
The output of described stator winding all is equipped with rectification part, and the output of each rectification part is connected with lead-out terminal.
On the described rotor electromagnet is installed, is provided with capacitor at the input of electromagnet.
The epitrochanterian magnet in the low reluctance generator that the utility model proposed or the quantity of the stator winding on electromagnet and the stator core adopt unequal structure, this kind structure can make the direction difference of each magnet or magnetic pull that electromagnet produces, to form one or more equilibrium areas, make reluctance force make a concerted effort be zero or approach zero, to improve the efficient of generator, detect according to the scene, the efficient of this kind generator can reach more than 90%.
Description of drawings:
Accompanying drawing 1 is the principle schematic that is provided with 1 equilibrium area in the low reluctance generator;
Accompanying drawing 2 is low embodiment of reluctance generator surface structure schematic diagrames when launching;
Accompanying drawing 4 is cross-sectional view of Fig. 3;
Accompanying drawing 5 is surface structure schematic diagrames of an embodiment of Fig. 3 rotor;
Accompanying drawing 7 is surface structure schematic diagrames of low another embodiment of reluctance generator;
Accompanying drawing 8 is cross-sectional view of stator among Fig. 7;
Accompanying drawing 9 is surface structure schematic diagrames of Fig. 7 rotor;
Accompanying drawing 10 is the circuit theory schematic diagrames after the stator winding output connects.
Embodiment:
Referring to Fig. 1, this figure provides the principle schematic that is provided with 1 equilibrium area in the low reluctance generator that the utility model proposes.Stator core among Fig. 1 is provided with nine, i.e. T1, T2, T3, T4, T5, T6, T7, T8 and T9, and epitrochanterian magnet is provided with eight, i.e. C1, C2, C3, C4, C5, C6, C7 and C8, stator core is Duoed one than magnet, its equilibrium area N=1.Because it is the line direction at magnet and stator core center that first epitrochanterian magnet attracts the resultant direction of the reluctance force that stator core corresponding with it produced.According to rotor minute folding when the static state, have only magnet C5 corresponding with the center of stator core T5, the resultant direction of magnetic attraction is perpendicular to magnetic gap, so magnet C5 attraction does not influence the torque of rotor; Magnet C6, C7, the resultant direction of the magnetic attraction that C8 produced and the direction of rotation of rotor, can form reluctance force, but magnet C4, C3 is identical with the rotation direction of rotor with the resultant direction of the magnetic attraction that C2 is produced, can promote rotor rotation, and magnet C4, the magnetic attraction that C3 and C2 produced with joint efforts can be respectively and magnet C6, C7, cancel out each other the magnetic attraction that C8 produced with joint efforts, and the resultant direction of the magnetic attraction that C1 produced is vertical with magnetic gap, do not influence the torque of rotor, so, the making a concerted effort of the magnetic attraction that all magnets produced on the rotor shown in this Fig be zero or approach zero.When dynamic, according to above-mentioned analysis can draw too all magnets produced on the rotor magnetic attraction make a concerted effort be zero or approach zero.
Referring to Fig. 2, this figure provides the surface structure schematic diagram of low first embodiment of reluctance generator that the utility model proposes.This generator comprises stator 1 and rotor 2, and end casing 3.
Stator 1 comprises stator case 11 and is installed in the stator core 12 of stator case 11 inner surfaces, and is wrapped in the stator winding 13 on each stator core 12.Stator core 12 is installed 11 along the inner surface radial direction of housing 11, along the described stator core 12 of being axially installed with of stator case 11 inner surfaces.
This generator is when work, and the rotation axis 21 that drives rotor 2 by external force rotates, and stator winding 13 produces induced current in the magnetic field that changes, to realize generating.
Because the magnet 24 in this generator is equipped with ten, stator core 12 is installed 11, N=1, and promptly equilibrium area is one, so the reluctance force of this generator is zero or approaches zero.
Magnet 24 on the rotor 2 is a plurality of along radially can being provided with of cylinder 22 cylinders, radial magnet 24 as cylinder 22 each circle of cylinder is equipped with X side by side, stator winding 13 on the stator 1 just should be equipped with Y=X+N side by side at circumferencial direction, wherein X is the even number more than or equal to 4, N is a positive integer, and N represents to form the quantity of equilibrium area, in the ordinary course of things, N is less than or equal to 4, and X is not more than 60.Above-mentioned epitrochanterian magnet 24 can adopt electromagnet, and is provided with capacitor at the input of electromagnet, thinks that it provides DC power supply.
Referring to Fig. 3 to Fig. 6, these four accompanying drawings provide the overall appearance structure of second embodiment of low reluctance generator that the utility model proposes.This generator comprises casing 1, and rotor 2 and stator 3 are installed in this casing 1, and casing 1 is outer to be equipped with the motor 4 coaxial with the output shaft 21 of rotor 2.Rotor 2 wherein comprises the cylinder 22 that is installed on the rotor of output shaft axle 21, and is installed in the plate shaped, magnets 23 on the cylinder 22.Plate shaped, magnets 23 is provided with ten, and the shape approximation of each plate shaped, magnets 23 is in the fan-shaped top away from central angle, and the polarity of adjacent two plate shaped, magnets 23 is opposite.Stator 3 comprises rectangle iron core 31, and this rectangle iron core 31 is open limit 33 on the limit towards rotor direction, passes to allow plate shaped, magnets 23, and rectangle iron core 31 is wound with stator winding 32 with open limit 33 relative edges.Rectangle iron core 31 is provided with 11, and each rectangle iron core 31 all independently is installed in the inner surface of casing 1 at interval equidistantly.Because stator 3 is than more than 23 one of plate shaped, magnets, so the equilibrium area of the generator that provides in the present embodiment is provided with one.This generator is when work, and the rotation axis 21 that drives rotor 2 by motor 4 rotates, and stator winding 32 produces induced current in the magnetic field that changes, to realize generating.
Referring to Fig. 7 to Fig. 9, these three accompanying drawings provide the overall appearance structure of the 3rd embodiment of low reluctance generator that the utility model proposes.This generator comprises casing 1, and rotor 2 and stator 3 are installed in this casing 1, and casing 1 is outer to be equipped with the motor 4 coaxial with the output shaft 21 of rotor 2.Rotor 2 comprises the cylinder 22 that is installed on the rotor of output shaft axle 21, and is installed in the plate shaped, magnets 23 on the cylinder 22.Plate shaped, magnets 23 is defined as one group at circumferencial direction, be provided with six groups altogether, each group is provided with ten plate shaped, magnets 23, and the shape approximation of each plate shaped, magnets 23 is in the fan-shaped top away from central angle, and the polarity of adjacent two plate shaped, magnets 23 is opposite in each group.Stator 3 comprises the I-shaped stator core 31 that is installed in casing 1 inner surface, depressed part at I-shaped stator core 31 is wound with stator winding 32, I-shaped stator core 31 is defined as one group at circumferencial direction, be provided with seven groups altogether, each group is provided with 11 I-shaped stator cores 31, be separated with the spacing that allows plate shaped, magnets 23 to pass at axial adjacent two 31 of I-shaped stator cores, and the polarity of adjacent two plate shaped, magnets 23 is opposite in each group.The equilibrium area of the generator that provides in the present embodiment is provided with one.
This generator is when work, and the rotation axis 21 that drives rotor 2 by motor 4 rotates, and stator winding 32 produces induced current in the magnetic field that changes, to realize generating.
Referring to Figure 10, this figure provides the circuit theory schematic diagram after the stator winding output connects in the low reluctance generator that the utility model proposes.Provide in the present embodiment to the stator winding L coldest days of the year end, the output of each stator winding L all is equipped with the rectification part Z that is made of full-bridge rectifier, and the output of each rectification part Z is connected with lead-out terminal A, B.All there is phase difference in the electric current that each stator winding L is produced, can export the direct current of stack after rectification part Z and parallel connection.
Claims (6)
1. low reluctance generator, magnet or electromagnet are installed on the rotor of this engine, the stator winding that is wrapped on the stator core is installed on the stator, it is characterized in that: described epitrochanterian magnet or electromagnet are at circumferencial direction polarity alternation and be equipped with X side by side, stator winding on the stator is equipped with Y=X+N side by side at circumferencial direction, wherein X is the even number more than or equal to 4, and N is a positive integer, and N represents to form the quantity of equilibrium area.
2. generator according to claim 1, it is characterized in that: described epitrochanterian magnet is plate shaped, magnets independently, stator core is to be the rectangle iron core on open limit on the limit towards rotor independently, and this rectangle iron core is wound with stator winding with open limit relative edge.
3. generator according to claim 1 and 2, it is characterized in that: many group plate shaped, magnets are installed on the described rotor, plate shaped, magnets is along the radially installation of rotor on the same group, the I-shaped stator core of many groups is installed on the stator, is separated with the spacing that allows plate shaped, magnets to pass between adjacent two I-shaped stator cores.
4. generator according to claim 1, it is characterized in that: described rotor has a cylinder that is limited by rotation axis, outer surface at this cylinder is equipped with one by one independently arc magnet, this arc magnet is identical along the polarity of the arc magnet of the axially-aligned of rotor, and is opposite along the polarity of the arc magnet of the arranged radially of rotor.
5. generator according to claim 1 is characterized in that: the output of described stator winding all is equipped with rectification part, and the output of each rectification part is connected with lead-out terminal.
6. according to claim 1 or 4 described generators, it is characterized in that: on the described rotor electromagnet is installed, is provided with capacitor at the input of electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206078295U CN201846157U (en) | 2010-11-16 | 2010-11-16 | Low-reluctance generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206078295U CN201846157U (en) | 2010-11-16 | 2010-11-16 | Low-reluctance generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846157U true CN201846157U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206078295U Expired - Fee Related CN201846157U (en) | 2010-11-16 | 2010-11-16 | Low-reluctance generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982923A (en) * | 2010-11-16 | 2011-03-02 | 付长延 | Low-magnetic resistance generator |
| CN104600878A (en) * | 2014-12-24 | 2015-05-06 | 张家政 | Repellency-suction type motor |
-
2010
- 2010-11-16 CN CN2010206078295U patent/CN201846157U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982923A (en) * | 2010-11-16 | 2011-03-02 | 付长延 | Low-magnetic resistance generator |
| CN104600878A (en) * | 2014-12-24 | 2015-05-06 | 张家政 | Repellency-suction type motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20151116 |
|
| EXPY | Termination of patent right or utility model |