CN102624191B - Wave energy permanent magnet linear generator - Google Patents
Wave energy permanent magnet linear generator Download PDFInfo
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- CN102624191B CN102624191B CN2012101243069A CN201210124306A CN102624191B CN 102624191 B CN102624191 B CN 102624191B CN 2012101243069 A CN2012101243069 A CN 2012101243069A CN 201210124306 A CN201210124306 A CN 201210124306A CN 102624191 B CN102624191 B CN 102624191B
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Abstract
The invention relates to a wave energy permanent magnet linear generator, which has the capability of directly converting wave energy into electric energy by using a wave energy acquisition system. The wave energy permanent magnetic linear generator comprises a stator core, a stator winding, magnetic poles, a permanent magnet and a rotor shaft, wherein the exterior of the stator core is cylindrical, and the surface of the stator core is provided with a stator exterior protection layer; a stator end cover the middle of which is provided with a bearing is respectively fixed at two sides of the stator core; the inner circle of the stator core is provided with a stator internal jacket for shielding; the magnetic poles and the permanent magnet are arranged on the rotor shaft; and the magnetic poles are in sliding fit with the bearings. The wave energy permanent magnet linear generator has the advantages of capability of reducing an energy transfer loop of wave energy, simple system structure, low building and operating cost, high reliability and high energy conversion efficiency.
Description
Technical field
The present invention relates to a kind of wave energy permanent magnet linear generator, is to utilize the wave energy acquisition system, directly wave energy is changed into to the generator of electric energy, belongs to the wave-energy power generation technical field.
Background technology:
Along with the continuous minimizing of the mineral oil energy, and mankind's energy demand constantly enlarges, and wave energy has been subject to showing great attention to and paying attention to of many countries in the world as a kind of widely distributed, resourceful renewable resource.The Devoting Major Efforts To Developing wave energy, have extremely important and far-reaching realistic meaning for improvement of environmental protection, marine resources development, marine territory defendance, sea or islander's living standard etc.
The existing generator that utilizes wave-energy power generation, there is its wave energy conversion designs thought of a kind of technical scheme to be: the high speed rotary motion that the low speed reciprocating motion of the energy collecting system under wave action is converted to generator, therefore, the conversion process of energy of system generally is divided into three links: gather, transmit and generating.The energy transmission link is that the wave energy of low kinetic head or low-head is converted at a high speed and the mechanical energy of high pressure, the transmission that is accompanied by energy had, voltage stabilizing, speed stabilizing and energy storage process, the existence of these links has increased complexity and the construction cost of system, has reduced conversion efficiency and the reliability of system
.The technical scheme that also has a kind of less employing, it is the floating direct-drive type wave energy converting system, its design philosophy is to utilize the floatation type works to absorb wave energy, then directly export electric energy by permanent magnet linear generator, improved the conversion efficiency of whole system, this scheme has high requirement to the manufacture of permanent magnet linear generator and operating cost and reliability and energy conversion efficiency, but prior art exists shortcoming and defect.
Summary of the invention:
The object of the invention is to, overcome the shortcoming of prior art, provide a kind of energy transmission link that can reduce wave energy, System Construction simple, build and this direct-drive type wave energy permanent magnet linear generator low, that reliability is high, energy conversion efficiency is high, that be applied to the direct-drive type wave energy electricity generation system of operation.
Technical scheme of the present invention is:
A kind of wave energy permanent magnet linear generator, it comprises stator core, stator winding, magnetic pole and permanent magnet and mover axle; The stator core outside is cylindrical shape, and there is stator exterior protection layer on its surface; The stator end cap that a middle part is equipped with bearing is fixed respectively at the stator core two ends; The stator core inner circle has the stator inner sheath for shielding; Magnetic pole and permanent magnet are arranged on the mover axle; Magnetic pole and bearing are slidably matched.
The technical scheme that has a nearlyer step of additional technical feature on the technique scheme basis is:
Described wave energy permanent magnet linear generator, its stator winding is embedded in the cannelure of stator core.
Described wave energy permanent magnet linear generator, its magnetic pole and permanent magnet are set with spaced reciprocally and are fixed on the mover axle; The permanent magnet axial charging; Permanent magnet is contrary with the polarity of magnetic pole adjacent pole.
Described wave energy permanent magnet linear generator, its stator winding is that the electromagnetic wire with water resistance of using with submersible motor passes through the pie that cast cured explosive becomes, lead-out wire is at the coil skin.
Described wave energy permanent magnet linear generator, its stator inner sheath is pressed into the inner circle of stator core; Between stator inner sheath both ends of the surface and two bearings end face, waterproof sealing layer is arranged, for avoiding seawater corrosion, protection stator core and stator winding.
Described wave energy permanent magnet linear generator, its stator exterior protection layer is the waterproof ring epoxy layer of stator core outer surface cast, for improving the motor radiating ability, protects stator core to avoid seawater corrosion simultaneously.
Described wave energy permanent magnet linear generator, the permanent magnet sheath that its permanent magnet outer cover has stainless steel to make; The external diameter of permanent magnet sheath is less than or equal to the external diameter of magnetic pole.
Described wave energy permanent magnet linear generator, its magnetic pole is that permeability magnetic material is made and surface treated magnetic pole.
The present invention has significant technique effect:
1, utilize the mechanical energy that the wave energy acquisition system changes into directly to drive the permanent magnet linear generator generating, save the energy transmission link in the Wave energy generating system, system configuration is simple, and construction cost is low, and reliability is high, and conversion efficiency is high; 2, Wave energy generating system be take wave energy as drive source, can be applied to the occasion that electric energy lacks, and is specially adapted to sea or islander; 3, wave energy is renewable resource, environmentally friendly, meets social energy development and wants; 4, the stator of wave energy permanent magnet linear generator and mover have all been taked anti-corrosion measure, can in seawater, move for a long time.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
In figure, each token name is called: 1-bearing, 2-stator end cap, 2.1-pull bar, 3-stator core, 3.1-stator exterior protection layer, 4-stator winding, 5-stator inner sheath, 6-magnetic pole, 7-permanent magnet, 7.1-permanent magnet sheath, 8-mover axle.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, a kind of wave energy permanent magnet linear generator of the present invention, it has stator core 3, stator winding 4, magnetic pole 6 and permanent magnet 7 and mover axle 8; Stator core 3 outsides are cylindrical shape, and there is stator exterior protection layer 3.1 on its surface; The stator end cap 2 that a middle part is equipped with bearing 1 is fixed respectively at stator core 3 two ends; Stator core 3 inner circles have the stator inner sheath 5 for shielding; Magnetic pole 6 and permanent magnet 7 are arranged on mover axle 8; Magnetic pole 6 is slidably matched with bearing 1.Described stator winding 4 is embedded in the cannelure of stator core 3.Magnetic pole 6 and permanent magnet 7 are set with and are fixed on mover axle 8 spaced reciprocally; Permanent magnet 7 axial chargings; Permanent magnet 7 is contrary with the polarity of magnetic pole 6 adjacent poles.Stator winding 4 is that the electromagnetic wire with water resistance of using with submersible motor passes through the pie that cast cured explosive becomes, and lead-out wire is at the coil skin.Stator inner sheath 5 is pressed into the inner circle of stator core 3; Between stator inner sheath 5 both ends of the surface and two bearings 1 end face, waterproof sealing layer is arranged, for avoiding seawater corrosion, protection stator core 3 and stator winding 4.Stator exterior protection layer 3.1 is waterproof ring epoxy layer of stator core 3 outer surface cast, for improving the motor radiating ability, protects stator core 3 to avoid seawater corrosion simultaneously.The permanent magnet sheath 7.1 that permanent magnet 7 outer cover have stainless steel to make; The external diameter of permanent magnet sheath 7.1 is less than or equal to the external diameter of magnetic pole 6.Magnetic pole 6 is made and surface treated magnetic pole for permeability magnetic material, for improving magnetic pole 6 its case hardnesses and anti-wear performance and anti-corrosion capability.
The claims in the present invention protection range is not limited to above-described embodiment.
Claims (6)
1. a wave energy permanent magnet linear generator, is characterized in that, it comprises stator core (3), stator winding (4), magnetic pole (6) and permanent magnet (7) and mover axle (8); Stator core (3) outside is cylindrical shape, and there is stator exterior protection layer (3.1) on its surface; The stator end cap (2) that a middle part is equipped with bearing (1) is fixed respectively at stator core (3) two ends; Stator core (3) inner circle has the stator inner sheath (5) for shielding; Magnetic pole (6) and permanent magnet (7) are arranged on mover axle (8); Magnetic pole (6) is slidably matched with bearing (1); Stator winding (4) is that the electromagnetic wire with water resistance of using with submersible motor passes through the pie that cast cured explosive becomes, and lead-out wire is at the coil skin.
2. wave energy permanent magnet linear generator according to claim 1, is characterized in that, stator winding (4) is embedded in the cannelure of stator core (3).
3. wave energy permanent magnet linear generator according to claim 1, is characterized in that, stator inner sheath (5) is pressed into the inner circle of stator core (3); Between stator inner sheath (5) both ends of the surface and two bearings (1) end face, waterproof sealing layer is arranged, for avoiding seawater corrosion, protection stator core (3) and stator winding (4).
4. wave energy permanent magnet linear generator according to claim 1; it is characterized in that; stator exterior protection layer (3.1) is the waterproof ring epoxy layer of stator core (3) outer surface cast, for improving the motor radiating ability, protects stator core (3) to avoid seawater corrosion simultaneously.
5. wave energy permanent magnet linear generator according to claim 1, is characterized in that, the permanent magnet sheath (7.1) that permanent magnet (7) outer cover has stainless steel to make; The external diameter of permanent magnet sheath (7.1) is less than or equal to the external diameter of magnetic pole (6).
6. wave energy permanent magnet linear generator according to claim 1, is characterized in that, magnetic pole (6) is made and surface treated magnetic pole for permeability magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101243069A CN102624191B (en) | 2012-04-26 | 2012-04-26 | Wave energy permanent magnet linear generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101243069A CN102624191B (en) | 2012-04-26 | 2012-04-26 | Wave energy permanent magnet linear generator |
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| CN102624191A CN102624191A (en) | 2012-08-01 |
| CN102624191B true CN102624191B (en) | 2013-12-04 |
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| CN2012101243069A Active CN102624191B (en) | 2012-04-26 | 2012-04-26 | Wave energy permanent magnet linear generator |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE112013005726T5 (en) * | 2012-11-30 | 2015-09-17 | Hitachi Metals, Ltd. | Actuator and method for producing an actuator |
| CN103368353B (en) * | 2013-07-04 | 2015-07-08 | 东南大学 | Linear generator having clamping locking function |
| CN104821702A (en) * | 2015-05-26 | 2015-08-05 | 浙江大学舟山海洋研究中心 | Linear generator for wave energy fishing net beacon light |
| CN109088529B (en) * | 2018-08-17 | 2020-10-09 | 浙江海洋大学 | Multi-surface cylindrical permanent magnet linear wave energy generator |
| CN112532010A (en) * | 2020-11-13 | 2021-03-19 | 江苏科技大学 | Direct-drive permanent magnet linear generator for wave power generation |
| CN113014060A (en) * | 2021-03-02 | 2021-06-22 | 浙江大学 | Pressure self-compensation deep-sea pressure-resistant linear motor and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312247Y (en) * | 2008-11-13 | 2009-09-16 | 深圳市大族精密机电有限公司 | Submersible linear motor |
| CN102185457A (en) * | 2011-04-27 | 2011-09-14 | 中国船舶重工集团公司第七一二研究所 | Permanent magnet linear generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE112006002849T5 (en) * | 2005-10-21 | 2008-09-25 | Kabushiki Kaisha Yaskawa Denki, Kitakyushu | Cylindrical linear motor |
| CN101938191B (en) * | 2010-03-01 | 2012-11-07 | 邓悌康 | Dry-submarine dual-purpose motor system |
| CN202183716U (en) * | 2011-08-23 | 2012-04-04 | 张元豪 | Coil assembly structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312247Y (en) * | 2008-11-13 | 2009-09-16 | 深圳市大族精密机电有限公司 | Submersible linear motor |
| CN102185457A (en) * | 2011-04-27 | 2011-09-14 | 中国船舶重工集团公司第七一二研究所 | Permanent magnet linear generator |
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Effective date of registration: 20200108 Address after: 430223 No.22, University Garden Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Changhai electric propulsion and chemical power supply Co., Ltd. Address before: 430064, Hubei, Wuhan province Hongshan District lion Street School car school Patentee before: No.712 Inst., China Ship Heavy Industry Group Co. |
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