WO2012113159A1 - 稀土永磁无铁芯发电机组 - Google Patents
稀土永磁无铁芯发电机组 Download PDFInfo
- Publication number
- WO2012113159A1 WO2012113159A1 PCT/CN2011/071329 CN2011071329W WO2012113159A1 WO 2012113159 A1 WO2012113159 A1 WO 2012113159A1 CN 2011071329 W CN2011071329 W CN 2011071329W WO 2012113159 A1 WO2012113159 A1 WO 2012113159A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fixed
- generator
- magnetic shield
- earth permanent
- permanent magnet
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
Definitions
- the invention relates to an engine-driven generator set, in particular to a rare earth permanent magnet ironless core generator set.
- the generator stator is mounted coaxially with the engine crankshaft, and the generator stator is directly mounted on the engine casing or the side cover.
- the outer rotor of the shell structure is fitted to the power output end of the crankshaft of the engine with its casing mouth facing the engine and the generator stator.
- a cooling fan is mounted on the back of the outer rotor housing for cooling the generator stator, rotor and other components. Since the generator stator of the generator is located between the engine and the generator rotor housing, although heat insulation space is left between the engine and the engine, the heat generated by the generator operation is radiated to the generator stator, resulting in power generation. The power output efficiency of the machine is reduced, and the generator output cable is subject to technical problems such as aging due to heat and complicated maintenance of the stator of the generator.
- a rare earth permanent magnet ironless core generator set comprising:
- stator fixed to the generator casing comprising a disk winding and a fixed outer casing formed of a high molecular polymer covering the disk winding;
- a first magnetic shield plate fixed to the output shaft by a flat key, and located between the stator and the generator base plate, and defining an air suction chamber and an exhaust chamber, the first magnetic shield plate being close to The output shaft is located with a first air guiding port connecting the suction chamber and the exhaust chamber;
- a second magnetic shield plate fixed to the output shaft by a flat key, located at a side of the stator away from the first magnetic shield plate;
- An inverter fixed to the frame and electrically connected to the load unit;
- the output power box is fixed on the frame and electrically connected to the inverter.
- the engine is a diesel engine, a gasoline engine, a gas turbine, a hydraulic machine or a wind turbine.
- the second air blocking plate is provided with a second air guiding port at a position close to the output shaft.
- the disc winding includes a copper wire that is radially and circumferentially intersected.
- the first magnetic shield and the second magnetic shield are in the shape of a concave-convex disc.
- each rare earth permanent magnet has a trapezoidal cross-sectional shape, and the plurality of rare earth permanent magnets are symmetrically distributed on the first magnetic shield plate and the second magnetic shield plate.
- the ribs can agitate the airflow in the generator to cause a pressure difference in the radial direction, so that air flows from the suction chamber through the first air guide port.
- the exhaust chamber a part of the heat generated by the stator is brought to the exhaust chamber for heat dissipation, and the air flow makes the heat and the outer wall transmit more fully, and functions to reduce the operating temperature of the generator and increase the output power of the engine.
- FIG. 1 is a perspective assembled view of a rare earth permanent magnet ironless core generator set according to an embodiment
- Figure 2 is a schematic cross-sectional view of the engine and generator shown in Figure 1;
- Figure 3 is a side view of the first magnetic shield and the rare earth permanent magnet of Figure 2.
- a rare earth permanent magnet coreless generator set 100 includes a frame 101 , an engine 102 , and a generator . 103, inverter 104, output power box 105, handle 106, damping pad 107 and cover panel 108.
- the frame 101 is formed by bending a metal tube.
- Engine 102 is secured to the frame by a damping pad 107 and bolts 101 .
- the engine 102 is a diesel engine. It will be appreciated that the engine 102 can also be a gasoline engine, a gas turbine, a hydraulic machine or a wind turbine.
- the generator 103 is bolted to the engine 102 .
- the inverter 104 and the output power box 105 are bolted to the frame 101 and passed through wires (not shown) and the generator 103. Electrical connection for stable output of current.
- the handle 106 is rotatably disposed on the frame 101 to facilitate overall handling.
- Cover panel 108 set to the rack 101 The top of the unit is used to shield components such as the engine 102 below it.
- FIG. 2 is a schematic cross-sectional view of the engine 102 and the generator 103.
- Engine 102 includes end cap 1 and slave end cap 1 A rotatable output shaft 22 that is worn out.
- Generator 103 includes generator base plate 2, screw 3, generator housing 4, screw 5, screw 6 and shroud 7 , screw 8 , stator 9 , permanent magnet clamp 10 , multiple rare earth permanent magnets 11 , screws 12 , ribs 13 , cooling fan 14 , disc winding 15 , fixed housing 16
- the first magnetic shield 171, the second magnetic shield 172, the gland 19, the screw 20, the flat key 21, the diesel output shaft 22 and the spacer 23 are provided.
- the generator base plate 2 is fixed to the end cover 1 of the engine 102 by means of screws 3.
- the generator housing 4 is roughly an annular tube that is fixed to the generator base plate 2 by screws 6 and the stator 9 Fixed inside it.
- the shroud 7 is secured to the generator housing 4 by screws 8 to form a space for the rotor and stator.
- any section of the stator 9 through the axis is generally 'work' shaped, including a coil winding 15 and covering the disc winding 15 a fixed outer casing formed of a high molecular polymer 16 .
- the function of the fixed outer casing 16 is to wind the coiled winding 15 It is fixed by a polymer material having good thermal conductivity and strength to form a stable disc stator structure.
- the disc winding 15 is connected to the inverter 104 by a wire.
- Disc winding 15 A copper wire wound in a radial direction and a circumferential direction is used to enable the radial copper wire to effectively cut the axial perpendicular magnetic line.
- the first magnetic shield 171 is made of a magnetically permeable material and has a concave-convex shape.
- the first magnetic shield 171 passes the flat key 21 It is fixed to the output shaft 22 and is located between the stator 9 and the generator base plate 2.
- the first magnetic shield 171 defines a space between the stator 9 and the generator base plate 2 to be close to the suction chamber of the stator 9. 24 and the exhaust chamber 25 near the generator base plate 2.
- a first air guiding port connecting the suction chamber 24 and the exhaust chamber 25 is opened at a position of the first magnetic shield plate 171 near the output shaft 22 181.
- the rib 13 is fixed to the side of the first magnetic shield plate 171 near the generator base plate 2 by screws, that is, in the exhaust chamber 25.
- Rib 13 A fan blade structure made of metal or non-metal material with a certain area. The function of the ribs 13 is to agitate the air flow in the generator 103 to cause a pressure differential in the radial direction so that air is drawn from the suction chamber 24 Through the first air guiding port 181 flowing to the exhaust chamber 25, a part of the heat generated by the stator 9 is taken to the exhaust chamber 25 to dissipate heat, and the air flow makes the heat and the outer wall are transmitted more fully, thereby reducing the generator.
- the structure of the second magnetic shield plate 172 is similar to that of the first magnetic shield plate 171, and passes through the flat key 21, the spacer 23, and the gland 19 And the screw 20 is fixed to the output shaft 22 and is located on the side of the stator 9 away from the first magnetic shield 171.
- a second air guiding port 182 is opened at a position of the second magnetic flux barrier 172 near the output shaft 22 .
- the cooling fan 14 is fixed to the second magnetic shield plate 172 by screws 12, away from the side of the permanent magnet compact 10, and acts on the ribs 13 Similar.
- a plurality of rare earth permanent magnets 11 are fixed to the first magnetic shield 171 and the second magnetic shield 172 by permanent magnet clamps 10 and screws 5 Up and correspond to the stator 9.
- the permanent magnet piece compact 10 is made of a non-magnetically permeable material. Referring to FIG. 3, each rare earth permanent magnet 11 has a trapezoidal cross-sectional shape. Multiple rare earth permanent magnets 11 Symmetrically distributed on the first magnetic shield 171 and the second magnetic shield 172, and adjacent magnets have opposite polarities to make the magnetic line more concentrated.
- Rare earth permanent magnet 11 A permanent magnet material made of a rare earth metal and a transition metal formed by a certain process, such as a neodymium iron boron (NdFeB) permanent magnet material.
- the engine 102 drives the output shaft 22 to rotate, thereby causing the rare earth permanent magnet 11 to follow the first magnetic shield plate 171. Rotate with the second magnetic shield 172.
- the disc winding 15 in the stator 9 performs a motion of cutting the magnetic induction line in the magnetic field, thereby generating an induced electromotive force.
- the current generated by the coil winding 15 is transmitted from the conductor to the inverter 104 Make the appropriate conversions and finally enter the output power box 105 for subsequent use.
- the rare earth permanent magnet is reliably connected to the first and second magnetic plates.
- the air gap is small, which improves the magnetic energy utilization rate.
- the stator consists of a coil coil winding with no iron core and low heat generation.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
Description
Claims (6)
- 一种稀土永磁无铁芯发电机组,其特征在于,包括:机架;发动机,固定在该机架上,该发动机包括输出轴;发电机,包括:发电机座板,固定在该发动机上;发电机外壳,固定在该发电机座板上;定子,固定在该发电机外壳上,包括盘式绕组和包覆该盘式绕组的由高分子聚合物形成的固定外壳;第一挡磁板,通过平键固定在该输出轴上,且位于该定子和该发电机座板之间,并限定出吸气腔室和排气腔室,该第一挡磁板上靠近该输出轴的位置开设有连接该吸气腔室和该排气腔室的第一导气口;第二挡磁板,通过平键固定在该输出轴上,位于该定子远离该第一挡磁板的一侧;多个稀土永磁铁,通过永磁体压块固定在该第一挡磁板和该第二挡磁板上,并与该定子相对应;筋叶,固定在该第一挡磁板上靠近该发电机座板的一侧;散热风扇,固定在该第二挡磁板远离该永磁体压块的一侧;及导流罩,固定在该发电机外壳上;逆变器,固定在该机架上,与该负载单元电性连接;及输出电源箱,固定在该机架上,与该逆变器电性连接。
- 根据权利要求1 所述的稀土永磁无铁芯发电机组,其特征在于:该发动机为柴油机、汽油机、燃气轮机、水力机或风力机。
- 根据权利要求1所述的稀土永磁无铁芯发电机组,其特征在于:该第二挡磁板上靠近该输出轴的位置开设有第二导气口。
- 根据权利要求1所述的稀土永磁无铁芯发电机组,其特征在于:该盘式绕组包括径向与周向交叉绕制的铜线。
- 根据权利要求1所述的稀土永磁无铁芯发电机组,其特征在于:该第一挡磁板和该第二挡磁板的形状为凹凸型的圆盘。
- 根据权利要求1所述的稀土永磁无铁芯发电机组,其特征在于:每一稀土永磁铁的截面形状为梯形,该多个稀土永磁铁对称分布于该第一挡磁板和该第二挡磁板上。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013554775A JP2014511098A (ja) | 2011-02-25 | 2011-02-25 | 希土類永久磁石コアレス発電機ユニット |
US14/000,180 US20130328321A1 (en) | 2011-02-25 | 2011-02-25 | Rare earth permanent magnetic coreless generator set |
PCT/CN2011/071329 WO2012113159A1 (zh) | 2011-02-25 | 2011-02-25 | 稀土永磁无铁芯发电机组 |
EP11859132.0A EP2680415A4 (en) | 2011-02-25 | 2011-02-25 | CORE-FREE POWER GENERATOR ASSEMBLY, PERMANENT-MAGNET MAGNETOR IN RARE EARTHS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2011/071329 WO2012113159A1 (zh) | 2011-02-25 | 2011-02-25 | 稀土永磁无铁芯发电机组 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012113159A1 true WO2012113159A1 (zh) | 2012-08-30 |
Family
ID=46720104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/071329 WO2012113159A1 (zh) | 2011-02-25 | 2011-02-25 | 稀土永磁无铁芯发电机组 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130328321A1 (zh) |
EP (1) | EP2680415A4 (zh) |
JP (1) | JP2014511098A (zh) |
WO (1) | WO2012113159A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104467243B (zh) * | 2014-12-29 | 2017-03-15 | 中国科学院电工研究所 | 一种盘式电机定子冷却结构 |
CN110460193A (zh) * | 2019-08-09 | 2019-11-15 | 泰安阳光动力电机有限公司 | 一种发电机与油机一体式机组 |
CN113027603A (zh) * | 2021-04-25 | 2021-06-25 | 江苏常发农业装备股份有限公司 | 一种发电机组 |
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EP1054146A2 (en) * | 1999-05-20 | 2000-11-22 | Honda Giken Kogyo Kabushiki Kaisha | Engine generator |
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- 2011-02-25 JP JP2013554775A patent/JP2014511098A/ja active Pending
- 2011-02-25 US US14/000,180 patent/US20130328321A1/en not_active Abandoned
- 2011-02-25 EP EP11859132.0A patent/EP2680415A4/en not_active Withdrawn
- 2011-02-25 WO PCT/CN2011/071329 patent/WO2012113159A1/zh active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
EP2680415A1 (en) | 2014-01-01 |
US20130328321A1 (en) | 2013-12-12 |
JP2014511098A (ja) | 2014-05-01 |
EP2680415A4 (en) | 2016-10-19 |
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