CN202690333U - Vertical wind generator with long life and high efficiency - Google Patents
Vertical wind generator with long life and high efficiency Download PDFInfo
- Publication number
- CN202690333U CN202690333U CN2012203277614U CN201220327761U CN202690333U CN 202690333 U CN202690333 U CN 202690333U CN 2012203277614 U CN2012203277614 U CN 2012203277614U CN 201220327761 U CN201220327761 U CN 201220327761U CN 202690333 U CN202690333 U CN 202690333U
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- CN
- China
- Prior art keywords
- wind generator
- rotor
- electromagnet
- high efficiency
- driven generator
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- Expired - Fee Related
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- Y02E10/722—
Abstract
The utility model discloses a vertical wind generator with long life and high efficiency, which relates to the technical field of wind power generation. Based on the structure of the general vertical wind generator, the wind generator disclosed by the utility model is added with electromagnets fixed on a base and supplied with power through a constant current source; non-contact electromagnetic force is generated by the electromagnets to counteract the gravity of rotors of the wind generator, thus the axial load and the friction loss of rolling bearings can be largely reduced, the service life of the rolling bearings can be prominently prolonged, and the efficiency of the wind generator can be prominently improved, and the application range of the wind generator is widened.
Description
Technical field
The utility model belongs to technical field of wind power generation.
Background technique
The energy of our times and environmental problem are more aobvious outstanding.Wind-driven generator has larger application prospect as a kind of clean energy resource generation device, has been subject to paying close attention to widely.The supporting part of rotor is one of critical component of wind-driven generator, is that surface friction drag is little, the life-span is long to its basic demand.
Existing vertical-type wind-driven generator generally adopts blade part directly to link to each other with alternator shaft, consists of rotor, and rotates by roller bearings.This structure also must bear the gravitational load (thrust load) of rotor, so surface friction drag is large so that rolling bearing not only will be born wind load (being generally radial load), and the life-span of rolling bearing is low, and complete machine startup wind speed is high, and efficient is low.
In order to address this problem, existing researcher proposes to adopt permanent-magnet type magnetic bearing (claim not only permanent-magnet type magnetic suspension bearing) or active magnetic bearing (but also claiming active magnetic suspension bearing) support rotor.Permanent-magnet type magnetic bearing rigidity is little, poor stability, and the shortcomings such as permanent-magnet material is expensive, poor processability, existence demagnetization, and its application is restricted.And active magnetic bearing needs a whole set of automatical control system, and system complex and cost are high.
The model utility content
The purpose of this utility model is to propose a kind of simple and the long lifetime and the high efficiency vertical-type wind-driven generator that are easy to realize.
This long lifetime and high efficiency vertical-type wind-driven generator comprise rolling bearing and rolling bearing that bears radial load that bears simultaneously radial load and thrust load of pedestal, rotor and this rotor of support; It is characterized in that: this vertical-type wind-driven generator also comprises armature and electromagnet; Wherein armature and rotor are fixedly connected, and electromagnet and pedestal are fixedly connected, and electromagnet and armature residual gap keep fixed range, and the suction between electromagnet and the armature equals or close to the gravity of rotor 1.
This long lifetime and high efficiency vertical-type wind-driven generator, be further characterized in that: above-mentioned electromagnet is with the groove of loop configuration, by epoxy resin the enameled cable winding is arranged fixedly in the groove, the enameled cable winding is passed to fixedly direct current (d.c.) by [constant, and fixedly the size of direct current (d.c.) is determined by the gravity of rotor.
This long lifetime and high efficiency vertical-type wind-driven generator are further characterized in that: above-mentioned armature is loop configuration.
The utility model is on general vertical-type wind-driven generator architecture basics, increase the electromagnet of the constant current source power supply that is fixed in pedestal, produce contactless electromagnetic force by electromagnet, offset or basic neutralisation blower fan gravity, so that rotor is with agravic or rotate under roller bearings close to null-gravity state, therefore thrust load and the surface friction drag of rolling bearing reduce greatly, the life-span of rolling bearing significantly increases, can effectively reduce the startup wind speed of wind-driven generator and improve overall efficiency, enlarge the application area (using in the area that annual mean wind speed is lower) of wind-driven generator.
Description of drawings
Fig. 1 is for producing the mechanical device schematic diagram of electromagnetic force structure;
The number in the figure title: 1 is rotor, and 2 is armature, and 3 is electromagnet.
Embodiment
(1) armature 2 is connected with rotor 1 by bolt.
(2) electromagnet 3 is connected with pedestal by bolt, make 2 in electromagnet 3 and armature keep fixed range.Electromagnet 3 fixedly has enameled cable winding by epoxy resin with the groove of loop configuration in the groove.
(3) according to rotor 1 gravity size, adopt [constant that suitable fixedly direct current (d.c.) is passed in the enameled cable winding of electromagnet 3, make electromagnet 3 produce the gravity of the counteracting of Motionless electromagnetic power or basic neutralisation rotor 1.
To testing according to the wind-driven generator of above-mentioned mode of execution development, test result is as follows:
Electromagnet 3 is installed on the vertical resistance type wind-driven generator of 5kW, and the Electromagnetic Design value is: air gap 0.8mm, electric current 3.3A, electromagnetic force 10kN.Measure the starting torque of wind-driven generator at indoor employing tensometer.Measurement result shows: starting torque has reduced 42%.
Claims (3)
1. a long lifetime and high efficiency vertical-type wind-driven generator comprise pedestal, rotor (1) and support rolling bearing and rolling bearing that bears radial load that bears simultaneously radial load and thrust load of this rotor; It is characterized in that: this vertical-type wind-driven generator also comprises armature (2) and electromagnet (3); Wherein armature (2) is fixedly connected with rotor (1), electromagnet (3) is fixedly connected with pedestal, keep fixed range between electromagnet (3) and armature (2), the suction between electromagnet (3) and the armature (2) equals or close to the gravity of rotor (1).
2. long lifetime according to claim 1 and high efficiency vertical-type wind-driven generator, it is characterized in that: above-mentioned electromagnet (3) is with the groove of loop configuration, by epoxy resin the enameled cable winding is arranged fixedly in the groove, the enameled cable winding is passed to fixedly direct current (d.c.) by [constant, and fixedly the size of direct current (d.c.) is determined by the gravity of rotor (1).
3. long lifetime according to claim 2 and high efficiency vertical-type wind-driven generator is characterized in that: above-mentioned armature (2) is loop configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203277614U CN202690333U (en) | 2012-07-09 | 2012-07-09 | Vertical wind generator with long life and high efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203277614U CN202690333U (en) | 2012-07-09 | 2012-07-09 | Vertical wind generator with long life and high efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690333U true CN202690333U (en) | 2013-01-23 |
Family
ID=47545959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203277614U Expired - Fee Related CN202690333U (en) | 2012-07-09 | 2012-07-09 | Vertical wind generator with long life and high efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734087A (en) * | 2012-07-09 | 2012-10-17 | 南京航空航天大学 | Vertical type wind driven generator with long service life and high efficiency |
-
2012
- 2012-07-09 CN CN2012203277614U patent/CN202690333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734087A (en) * | 2012-07-09 | 2012-10-17 | 南京航空航天大学 | Vertical type wind driven generator with long service life and high efficiency |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160709 |