CN201038962Y - A permanent magnetic wind generator - Google Patents
A permanent magnetic wind generator Download PDFInfo
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- CN201038962Y CN201038962Y CNU2006201648563U CN200620164856U CN201038962Y CN 201038962 Y CN201038962 Y CN 201038962Y CN U2006201648563 U CNU2006201648563 U CN U2006201648563U CN 200620164856 U CN200620164856 U CN 200620164856U CN 201038962 Y CN201038962 Y CN 201038962Y
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- iron core
- rotor
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- outer arm
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Abstract
The utility model relates to a permanent magnet wind generator, which can reduce the thickness of the side surface of a stator, reduce the eddy current loss which is generated by the entrance of a magnetic flux from the side surface of an iron core of the stator and improve the efficiency and the output of a motor, an outer arm 2 of the iron core takes a shape of a C and consists of an iron core inner tooth 6, an outer tooth 5 and a back yoke 17 which are arranged in a same plane, and the iron core outer arm is formed by the winding of a strip-shaped silicon steel sheet, a rotor is integrally arranged on a rotor spoke 7, the rotor spoke 7 is arranged on a rotating shaft 10, an concentrated flux outer rotor 13 and an inner rotor 14 are both composed of a permanent magnet body 11, a concentrated flux iron core 12 and a common iron core 18 which are tangentially arranged, a fixed ring 4 is embedded between the iron core outer arm 2 and the back yoke 17, one side of an open slot of the fixed ring 4 is embedded with the iron core outer arm 2 and is connected with a motor machine base 1, the other side thereof is used for fixing a transition iron core 8, the iron core outer arm 2 and the transition iron core 8 are staggered with a pole distance along the circumferential direction and are also arranged staggeredly, the transition iron core 8 is annular and forms a closed magnetic circuit with the iron core outer arm 2.
Description
Technical field
The utility model relates to a kind of generator, specifically is the wind-driven generator that the permanent magnet rotor is arranged.
Background technology
Horizontal flux electric machine belongs to the permagnetic synchronous motor category, is applied in the ocean tidal power generating.There is document that the different structure wind-driven generator is compared, thinks that horizontal flux electric machine has higher P/C ratio, illustrates that this type of motor has broad prospect of application equally in wind power generation field.Its design feature is: realized the dual decoupling zero of electromagnetism and structure between each phase, do not existed conventional motors increasing structural mutual restriction relation between air-gap flux and the winding current density, thereby obtain higher torque density; Stator adopts centralized winding, and every phase only needs one group of coil, and winding processing is simple, and the end is little, the utilance height; Rotor constitutes magnetism-collected structure by iron-core lamination and permanent magnet, can produce bigger air gap flux density; Design freedom is big, can adjust magnetic circuit size and coil window as required; Modular construction is good, can change the watt level of motor by the increase and decrease of the number of poles and the number of phases; Can cancel gear drive, so both reduce the overall volume of Mechatronic Systems, avoid the gear box loss again, improve the efficient of whole device; Have stronger fault-tolerant ability, phase shortage also can be kept operation; The break traditions power supply powering mode of motor whenever can independently be controlled mutually; Have good speed adjusting performance, can stable operation in the broad wind speed range, utilize wind energy more efficiently.
Because the complexity of horizontal flux electric machine structure causes its difficulty of processing big, the manufacturing cost height, this has become the main bottleneck that this type of motor is not applied.C shape stator core from early stage German H.Weh. professor's U-shaped stator core to Britain Rolls-Royce company, though the structure of horizontal flux electric machine is necessarily simplified, but stator core need adopt the line cutting processing to be shaped, and has processed complex, the higher defective of cost.Though powder magnetically soft alloy material (SMC) can require motor stator is made into the structure of any needs easily according to magnetic circuit, difficulty of processing reduces, but compares with silicon steel material, obtain identical air gap flux density, the magnet steel consumption will increase, and causes effective material cost of motor to improve.Simultaneously, in existing magneticfocusing structure, permanent magnet need tangentially be fixed on rotor surface, and assembly difficulty is big, and mechanical strength is low.
Summary of the invention
The purpose of this utility model provides a kind of permanent-magnetic wind driven generator.
The utility model is a kind of permanent-magnetic wind driven generator, its outer arm 2 unshakable in one's determination is " C " shape, by internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 3 parts are formed, internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 are in same plane, form by banded silicon steel sheet coiling, the rotor integral installation is on rotor spoke 7, rotor spoke 7 is installed in the rotating shaft 10, magneticfocusing external rotor 13 and internal rotor 14 are by the tangential permanent magnet 11 of arranging, poly-magnetic core 12, common unshakable in one's determination 18 form, retainer ring 4 is embedded between the back of the body yoke 17 of outer arm 2 unshakable in one's determination, one side of retainer ring 4 fluting is nested with outer arm unshakable in one's determination 2, and is linked together with electric machine stand 1, and opposite side is used for fixing transition iron core 8, outer arm 2 unshakable in one's determination and transition unshakable in one's determination 8 are along the pole span that circumferentially staggers, be staggered, transition iron core 8 forms closed magnetic circuit with outer arm 2 unshakable in one's determination ringwise.
The utility model is compared with background technology, and the beneficial effect that has is: reduced the thickness of stator side, reduced that magnetic flux is entered by the stator core side and the eddy current loss that produces, helped improving efficiency of motor and exert oneself.And not needing punching in the course of processing, the stator core stock utilization is near 100%.Rectangle transition iron core 8 is built up by iron-core lamination and is fixed by rivet, has simplified technology, has reduced processing cost.The corresponding bilateral air gap of each rotor unit of the horizontal flux electric machine of " E " of the present invention shape stator (referring to the combination of every layer of rotor core and magnet steel), then corresponding 4 air gaps of two-level rotor like this, these air gaps all participate in energy converting between mechanical, and motor will obtain higher output torque.In traditional radial flux magneto, motor is monolateral gap structure, therefore can produce certain leakage field in the side by axle.And all there is air gap these rotor both sides, just do not have the inboard leakage field problem of conventional motors.
Description of drawings
Fig. 1 is the radially schematic diagram of 12 pairs of utmost point motors of two-phase, Fig. 2 is the axial schematic diagram of stator and rotor portion, Fig. 3 is the radially schematic diagram of stator and rotor portion, Fig. 4 is a stator retainer ring partial schematic diagram, Fig. 5 is the stator core subssembly drawing, and Fig. 6 is the fixing schematic diagram of epoxy resin of stator, and Fig. 7 a is the structural representation of the ring-type stator core outer arm of reeling, Fig. 7 b is the structural representation of two " C " shape stator core outer arms, and Fig. 8 is the poly-magnetic type rotor partial schematic diagram.
Embodiment
Embodiment one
Embodiment one is 12 pairs of utmost point transverse flux permanent magnet wind generators of two-phase.As shown in Figure 1, its outer arm 2 unshakable in one's determination is " C " shape, form by internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 3 parts, internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 are in same plane, banded silicon steel sheet is wound into annular, the rotor integral installation is on rotor spoke 7, and rotor spoke 7 is installed in the rotating shaft 10.As Fig. 2, shown in Figure 3, magneticfocusing external rotor 13 and internal rotor 14 are by tangential permanent magnet 11, poly-magnetic core 12, common 18 compositions unshakable in one's determination arranged, as Fig. 1, Fig. 4, shown in Figure 5, retainer ring 4 is embedded between the back of the body yoke 17 of outer arm 2 unshakable in one's determination, one side of retainer ring 4 fluting is nested with outer arm unshakable in one's determination 2, and be linked together with electric machine stand 1, opposite side is used for fixing transition iron core 8, outer arm 2 unshakable in one's determination and transition unshakable in one's determination 8 are along the pole span that circumferentially staggers, be staggered, transition iron core 8 forms closed magnetic circuit with outer arm 2 unshakable in one's determination ringwise.Transition iron core 8 is fixed on the retainer ring 4 by pressure ring 9, screw 15.As Fig. 1, shown in Figure 3, inside and outside two windings of stator coil 3 belong to same phase, adopt series system.As shown in Figure 2, external rotor 13 and the assembling mode that internal rotor 14 aligns, stator staggers 90 ° of electrical degrees, the N utmost point is extremely relative with N, and the S utmost point is extremely relative with S, and the two-phase stator winding electrifying differs 90 ° of electrical degrees in proper order.
Because in the course of the work, the transition 8 stressed stressed sums of inside and outside tooth that are equivalent to outer arm 2 unshakable in one's determination unshakable in one's determination, retainer ring shown in Figure 4 is processed by nonmagnetic substances such as aluminium alloys, its effect is the stressed sum of inside and outside tooth of balance outer arm 2 unshakable in one's determination, distortion even come off when preventing that transition unshakable in one's determination 8 is stressed causes motor to damage.As shown in Figure 6, stator and winding integral body are used poured with epoxy resin, have higher mechanical strength, positioning accuracy and better heat radiating effect to guarantee motor stator.As Fig. 1, shown in Figure 3, coil 3 is that annular is concentrated winding, belong to no end construction, and coiling is simple.Inside and outside two windings belong to same phase, for avoiding the asymmetric circulation that produces because of two winding back-emfs, generally adopt series system.Shown in Fig. 7 a, internal tooth unshakable in one's determination, external tooth and back of the body yoke are wound into annular with banded silicon steel sheet in the stator core outer arm in same plane, form integral core after soaking insulating varnish, and then are divided into two and form two outer arms unshakable in one's determination shown in Fig. 7 b.
Embodiment two
Embodiment two is n phase transverse flux permanent magnet wind generators, and n is an integer between 2～20, for n phase motor, and stator 1/n the pole span that stagger, i.e. 180 °/n electrical degree, n phase coil power-up sequence differs from 180 °/n phase place.As shown in Figure 1, its outer arm 2 unshakable in one's determination is " C " shape, form by internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 3 parts, internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 are in same plane, banded silicon steel sheet is wound into annular, the rotor integral installation is on rotor spoke 7, and rotor spoke 7 is installed in the rotating shaft 10.As Fig. 2, shown in Figure 3, magneticfocusing external rotor 13 and internal rotor 14 are by tangential permanent magnet 11, poly-magnetic core 12, common 18 compositions unshakable in one's determination arranged, as Fig. 1, Fig. 4, shown in Figure 5, retainer ring 4 is embedded between the back of the body yoke 17 of outer arm 2 unshakable in one's determination, one side of retainer ring 4 fluting is nested with outer arm unshakable in one's determination 2, and be linked together with electric machine stand 1, opposite side is used for fixing transition iron core 8, outer arm 2 unshakable in one's determination and transition unshakable in one's determination 8 are along the pole span that circumferentially staggers, be staggered, transition iron core 8 forms closed magnetic circuit with outer arm 2 unshakable in one's determination ringwise.Transition iron core 8 is fixed on the retainer ring 4 by pressure ring 9, screw 15.As Fig. 1, shown in Figure 3, inside and outside two windings of stator coil 3 belong to same phase, adopt series system.
Retainer ring shown in Figure 4 is processed by nonmagnetic substances such as aluminium alloys, and its effect is the stressed sum of inside and outside tooth of balance outer arm 2 unshakable in one's determination, and distortion even come off when preventing that transition unshakable in one's determination 8 is stressed causes motor to damage.As shown in Figure 6, stator and winding integral body are used poured with epoxy resin, have higher mechanical strength, positioning accuracy and better heat radiating effect to guarantee motor stator.As Fig. 1, shown in Figure 3, coil 3 is that annular is concentrated winding, belong to no end construction, and coiling is simple.Inside and outside two windings belong to same phase, for avoiding the asymmetric circulation that produces because of two winding back-emfs, generally adopt series system.Shown in Fig. 7 a, internal tooth unshakable in one's determination, external tooth and back of the body yoke are wound into annular with banded silicon steel sheet in the stator core outer arm in same plane, form integral core after soaking insulating varnish, and then are divided into two and form two outer arms unshakable in one's determination shown in Fig. 7 b.
Embodiment three
Embodiment three also is 12 pairs of utmost point transverse flux permanent magnet wind generators of two-phase.As shown in Figure 1, its outer arm 2 unshakable in one's determination is " C " shape, form by internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 3 parts, internal tooth 6 unshakable in one's determination, external tooth 5 and back of the body yoke 17 are in same plane, banded silicon steel sheet is wound into annular, the rotor integral installation is on rotor spoke 7, and rotor spoke 7 is installed in the rotating shaft 10.As Fig. 2, shown in Figure 3, magneticfocusing external rotor 13 and internal rotor 14 are by tangential permanent magnet 11, poly-magnetic core 12, common 18 compositions unshakable in one's determination arranged, as Fig. 1, Fig. 4, shown in Figure 5, retainer ring 4 is embedded between the back of the body yoke 17 of outer arm 2 unshakable in one's determination, one side of retainer ring 4 fluting is nested with outer arm unshakable in one's determination 2, and be linked together with electric machine stand 1, opposite side is used for fixing transition iron core 8, outer arm 2 unshakable in one's determination and transition unshakable in one's determination 8 are along the pole span that circumferentially staggers, be staggered, transition iron core 8 forms closed magnetic circuit with outer arm 2 unshakable in one's determination ringwise.Transition iron core 8 is fixed on the retainer ring 4 by pressure ring 9, screw 15.As Fig. 1, shown in Figure 3, inside and outside two windings of stator coil 3 belong to same phase, adopt series system.As shown in Figure 2, the assembling mode that external rotor (13) and internal rotor (14) align, stator staggers 90 ° of electrical degrees, the N utmost point is extremely relative with N, and the S utmost point is extremely relative with S, and the two-phase stator winding electrifying differs 90 ° of electrical degrees in proper order.
As shown in Figure 8, under the not high occasion of rotor number of poles, axial permanent magnetic magnet ring 16 is installed on common unshakable in one's determination 18, and the excitatory part of magneticfocusing external rotor 13 and internal rotor 14 is made up of tangential arrangement permanent magnet 11 and axially-aligned permanent magnet 16.
Retainer ring shown in Figure 4 is processed by nonmagnetic substances such as aluminium alloys, and its effect is the stressed sum of inside and outside tooth of balance outer arm 2 unshakable in one's determination, and distortion even come off when preventing that transition unshakable in one's determination 8 is stressed causes motor to damage.As shown in Figure 6, stator and winding integral body are used poured with epoxy resin, have higher mechanical strength, positioning accuracy and better heat radiating effect to guarantee motor stator.As Fig. 1, shown in Figure 3, coil 3 is that annular is concentrated winding, belong to no end construction, and coiling is simple.Inside and outside two windings belong to same phase, for avoiding the asymmetric circulation that produces because of two winding back-emfs, generally adopt series system.Shown in Fig. 7 a, internal tooth unshakable in one's determination, external tooth and back of the body yoke are wound into annular with banded silicon steel sheet in the stator core outer arm in same plane, form integral core after soaking insulating varnish, and then are divided into two and form two outer arms unshakable in one's determination shown in Fig. 7 b.
Claims (5)
1. permanent-magnetic wind driven generator, its outer arm unshakable in one's determination (2) is " C " shape, by internal tooth unshakable in one's determination (6), external tooth (5) and back of the body yoke (17) three parts are formed, internal tooth (6) unshakable in one's determination, external tooth (5) and back of the body yoke (17) are in same plane, form by banded silicon steel sheet coiling, the rotor integral installation is on rotor spoke (7), rotor spoke (7) is installed in the rotating shaft (10), magneticfocusing external rotor (13) and internal rotor (14) are by the tangential permanent magnet (11) of arranging, poly-magnetic core (12), common iron core (18) is formed, it is characterized in that retainer ring (4) is embedded between the back of the body yoke (17) of outer arm unshakable in one's determination (2), one side of retainer ring (4) fluting is nested with outer arm unshakable in one's determination (2), and be linked together with electric machine stand (1), opposite side is used for fixing transition iron core (8), outer arm (2) unshakable in one's determination and transition iron core (8) are along the pole span that circumferentially staggers, be staggered, transition iron core (8) forms closed magnetic circuit with outer arm unshakable in one's determination (2) ringwise.
2. permanent-magnetic wind driven generator according to claim 1 is characterized in that transition iron core (8) is fixed on the retainer ring (4) by pressure ring (9), screw (15).
3. permanent-magnetic wind driven generator according to claim 1 is characterized in that inside and outside two windings of stator coil (3) belong to same phase, adopts series system.
4. permanent-magnetic wind driven generator according to claim 1, it is characterized in that the assembling mode that external rotor (13) and internal rotor (14) align, stator staggers 90 ° of electrical degrees, the N utmost point is extremely relative with N, and the S utmost point is extremely relative with S, and the two-phase stator winding electrifying differs 90 ° of electrical degrees in proper order.
5. permanent-magnetic wind driven generator according to claim 1 is characterized in that for n phase motor, stator 1/n the pole span that stagger, i.e. and 180 °/n electrical degree, n phase coil power-up sequence differs from 180 °/n phase place, and n is an integer between 2～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201648563U CN201038962Y (en) | 2006-12-19 | 2006-12-19 | A permanent magnetic wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201648563U CN201038962Y (en) | 2006-12-19 | 2006-12-19 | A permanent magnetic wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038962Y true CN201038962Y (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201648563U Expired - Fee Related CN201038962Y (en) | 2006-12-19 | 2006-12-19 | A permanent magnetic wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038962Y (en) |
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2006
- 2006-12-19 CN CNU2006201648563U patent/CN201038962Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |