CN102035324A - Double-stator permanent magnet generator - Google Patents

Double-stator permanent magnet generator Download PDF

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Publication number
CN102035324A
CN102035324A CN 201110001813 CN201110001813A CN102035324A CN 102035324 A CN102035324 A CN 102035324A CN 201110001813 CN201110001813 CN 201110001813 CN 201110001813 A CN201110001813 A CN 201110001813A CN 102035324 A CN102035324 A CN 102035324A
Authority
CN
China
Prior art keywords
stator
rotor
double
permanent magnet
dead axle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201110001813
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Chinese (zh)
Inventor
华小平
于杰
徐安军
侯文磊
卓高柱
Original Assignee
华小平
田书深
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华小平, 田书深 filed Critical 华小平
Priority to CN 201110001813 priority Critical patent/CN102035324A/en
Publication of CN102035324A publication Critical patent/CN102035324A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a double-stator permanent magnet generator comprising a casing, wherein a stator, a rotor, a dead axle and a moving axle are arranged in the casing, wherein the moving axle is sheathed with the dead axle, is capable of axially rotating, and drive and is connected with the rotor; the stator comprises a stator iron core and a stator winding; the stator consists of concentric annular outer stator and inner stator; the rotor is positioned between the outer stator and the inner stator; and magnetic steel is covered on both the inner surface and the outer surface of the rotor. The invention has the advantages that two stators are arranged in one generator so that current is simultaneously generated in windings of the inner stator and the outer stator when the rotor rotates so as to fully utilize the inside space of the generator, greatly improve the power of the generator in effective volume space, avoid excessive enlargement of the volume when the efficiency of the generator is improved, reduce the cost and improve the utilization rate of wind energy. In addition, the rotor is provide with the inner magnetic steel and the outer magnetic steel so as to form an inner and an outer independent magnetic paths without interference so that the operation is stable.

Description

The double-stator permanent magnet generator
Technical field
The invention belongs to technical field of generators, particularly a kind of double-stator permanent magnet generator.
Background technology
Wind energy is as a kind of renewable resource of cleaning, and development prospect is boundless, and wind-driven generator is that wind energy is opened
Vital core link in sending out.In direct wind-driven generator, present, wanting to increase the way that the power of generator generally takes is exactly the volume that increases generator, but the increase of volume has a lot of condition restriction, and cost is higher, and wind energy utilization is lower.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of Wind Power Utilization efficient height, the double-stator permanent magnet generator that relative volume and weight are less.
The present invention is achieved by the following measures:
A kind of double-stator permanent magnet generator of the present invention comprises casing, is provided with stator, commentaries on classics in the described casing
But son, dead axle and with the moving axis of dead axle socket and axial rotation, described moving axis drives and connects rotor, described stator comprises stator core and stator winding, described stator comprises concentric annular external stator and internal stator, described rotor is between external stator and internal stator, and the inner surface and the outer surface of rotor are provided with magnet steel.
Above-mentioned rotor is connected with the rotor field spider perpendicular to the moving axis center line, and moving axis is connected on the rotor field spider, institute
State casing and comprise housing, front end housing and rear end cap, described front end housing is an annular, and the interior center circle edge of front end housing bends inwards and be provided with sealing device between end and rotor field spider, can play sealing function, prevents that dust impurity from entering in the casing.
Better for service efficiency, the stator core length of above-mentioned external stator is 1.1 ~ 2.0 times of stator core length of internal stator, also can be according to watt level, and the winding length of external stator in the pro-rata.
Specifically, above-mentioned dead axle is a hollow-core construction, and the dead axle end is provided with the shelves platform that turns up, and the shelves platform is connected the outside of rear end cap.
Preferably, the fore bearing and the rear bearing at interval before and after being provided with in the above-mentioned dead axle, described moving axis is enclosed within the dead axle by fore bearing and rear bearing.
Particularly, above-mentioned internal stator is fixed on the dead axle by the internal stator support.
In order to improve radiating effect, said machine casing is provided with radiating ribs, and rear end cap is provided with radiator fan.
The invention has the beneficial effects as follows: adopt two stators in the generator, when rotor rotation, can in the coil of inside and outside two stators, produce electric current simultaneously, made full use of the generator inner space, in the effective volume space, significantly improve generator power, changed the technology tradition of former single stator generating, when improving generating efficiency, also avoid the excessive increase of volume, reduced cost, improved wind energy utilization.Simultaneously, magnet steel and outer steel in rotor is provided with have formed the independent magnetic circuit of inside and outside two covers, and interior external magnetic circuit does not disturb mutually, working stability.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1 casing, 2 external stator cores, 3 external stator windings, 4 outer steels, 5 rotor field spiders, 6 front end housings, magnet steel in 7,8 fore bearings, 9 moving axis, 10 sealing devices, 11 internal stator windings, 12 inner-stator iron cores, 13 internal stator supports, 14 rear bearings, 15 dead axles, 16 rear end caps, 17 rotors.
Embodiment
As shown in Figure 1, a kind of double-stator permanent magnet generator of the present utility model, comprise casing 1, be provided with stator in the casing 1, rotor 17, but dead axle 15 and with the moving axis 9 of dead axle 15 sockets and axial rotation, moving axis 9 drives and connects rotor 17, stator comprises concentric annular external stator and internal stator, internal stator comprises inner-stator iron core 12 and internal stator winding 11, external stator comprises external stator core 2 and external stator winding 3, rotor 17 is between external stator and internal stator, under the drive of moving axis 9, rotor 17 rotates between internal stator and external stator, magnet steel 7 and outer steel 4 in the inner surface of rotor 17 and outer surface are respectively arranged with.Rotor 17 is connected with the rotor field spider 5 perpendicular to the moving axis center line, moving axis 9 is connected on the rotor field spider 5, casing 1 comprises housing, front end housing 6 and rear end cap 16, front end housing 6 is an annular, the interior center circle edge of front end housing 6 bends inwards and be provided with sealing device between end and rotor field spider 5, can play sealing function, prevent that dust impurity from entering in the casing.Dead axle 15 is a hollow-core construction, and dead axle 15 ends are provided with the shelves platform that turns up, and the shelves platform is connected the outside of rear end cap 16.The fore bearing 8 and the rear bearing 14 at interval before and after being provided with in the dead axle 15, moving axis 9 is enclosed within the dead axle 15 by fore bearing 8 and rear bearing 14.Internal stator is fixed on the dead axle 15 by internal stator support 13.Casing 1 is provided with radiating ribs, and rear end cap 16 is provided with radiator fan.Rotor field spider 5 has rigidity and flexibility to a certain degree on the moving axis centerline direction.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection range of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.

Claims (7)

1. double-stator permanent magnet generator, comprise casing, but be provided with in the described casing stator, rotor, dead axle and with the moving axis of dead axle socket and axial rotation, described moving axis drives and connects rotor, described stator comprises stator core and stator winding, it is characterized in that: described stator comprises concentric annular external stator and internal stator, and described rotor is between external stator and internal stator, and the inner surface and the outer surface of rotor are provided with magnet steel.
2. according to the described double-stator permanent magnet generator of claim 1, it is characterized in that: described rotor is connected with the rotor field spider perpendicular to the moving axis center line, moving axis is connected on the rotor field spider, described casing comprises housing, front end housing and rear end cap, described front end housing is an annular, and the interior center circle edge of front end housing bends inwards and be provided with sealing device between end and rotor field spider.
3. according to the described double-stator permanent magnet generator of claim 1, it is characterized in that: the stator core length of described external stator is 1.1 ~ 2.0 times of stator core length of internal stator.
4. according to claim 1 or 2 described double-stator permanent magnet generators, it is characterized in that: described dead axle is a hollow-core construction, and the dead axle end is provided with the shelves platform that turns up, and the shelves platform is connected the outside of rear end cap.
5. according to the described double-stator permanent magnet generator of claim 1, it is characterized in that: the fore bearing and the rear bearing at interval before and after being provided with in the described dead axle, described moving axis is enclosed within the dead axle by fore bearing and rear bearing.
6. according to the described double-stator permanent magnet generator of claim 1, it is characterized in that: described internal stator is fixed on the dead axle by the internal stator support.
7. according to claim 1 or 2 described double-stator permanent magnet generators, it is characterized in that: described casing is provided with radiating ribs, and rear end cap is provided with radiator fan.
CN 201110001813 2011-01-06 2011-01-06 Double-stator permanent magnet generator Pending CN102035324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110001813 CN102035324A (en) 2011-01-06 2011-01-06 Double-stator permanent magnet generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110001813 CN102035324A (en) 2011-01-06 2011-01-06 Double-stator permanent magnet generator

Publications (1)

Publication Number Publication Date
CN102035324A true CN102035324A (en) 2011-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110001813 Pending CN102035324A (en) 2011-01-06 2011-01-06 Double-stator permanent magnet generator

Country Status (1)

Country Link
CN (1) CN102035324A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296846A (en) * 2013-07-02 2013-09-11 国电联合动力技术有限公司 Large direct-driven wind turbine generator with fixed shaft for supporting
CN103872868A (en) * 2012-12-07 2014-06-18 株式会社电装 Multi-gap type rotary electric machine
CN106451971A (en) * 2016-11-29 2017-02-22 湘潭电机股份有限公司 Permanent magnet motor with double-stator structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895178A (en) * 2010-06-04 2010-11-24 华小平 Megawatt dual-rotor direct drive permanent magnet wind driven generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895178A (en) * 2010-06-04 2010-11-24 华小平 Megawatt dual-rotor direct drive permanent magnet wind driven generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103872868A (en) * 2012-12-07 2014-06-18 株式会社电装 Multi-gap type rotary electric machine
CN103872868B (en) * 2012-12-07 2018-04-06 株式会社电装 Multiple level formula electric rotating machine
CN103296846A (en) * 2013-07-02 2013-09-11 国电联合动力技术有限公司 Large direct-driven wind turbine generator with fixed shaft for supporting
CN106451971A (en) * 2016-11-29 2017-02-22 湘潭电机股份有限公司 Permanent magnet motor with double-stator structure
CN106451971B (en) * 2016-11-29 2019-04-09 湘潭电机股份有限公司 A kind of magneto of double-stator structure

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Application publication date: 20110427

C12 Rejection of a patent application after its publication