CN106849494A - A kind of shaftless and bearing outer rotor permanent magnet generator - Google Patents

A kind of shaftless and bearing outer rotor permanent magnet generator Download PDF

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Publication number
CN106849494A
CN106849494A CN201710168344.7A CN201710168344A CN106849494A CN 106849494 A CN106849494 A CN 106849494A CN 201710168344 A CN201710168344 A CN 201710168344A CN 106849494 A CN106849494 A CN 106849494A
Authority
CN
China
Prior art keywords
generator
rotor
support
flywheel
prime mover
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
CN201710168344.7A
Other languages
Chinese (zh)
Inventor
林文瀚
郭健
朱挺辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
Original Assignee
SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
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 SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd filed Critical SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
Priority to CN201710168344.7A priority Critical patent/CN106849494A/en
Publication of CN106849494A publication Critical patent/CN106849494A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807Rotary generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/02Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Abstract

A kind of shaftless and bearing outer rotor permanent magnet generator,It is direct coupled with prime mover lightweight there is provided one kind,Small volume,The technical scheme of the generator of low cost of manufacture,Using outer-rotor structure,Shorten the axial length of generator,Mitigate axial load,By the stationary part of generator and prime mover stationary part direct connection,By the use of prime mover output shaft as generator amature axle,So as to constitute the system for not needing single generator shaft and bearing,And coordinate the design of support,Rotor is accommodated using C font structures,Set up the cooling channel path for being air outlet with horn mouth as air inlet with rib space,Set support circumscribing flange other devices are installed,Fan blade and flywheel structure are set,A planar annular is set up on flywheel and enters action for flywheel,Static balance,Significantly reduce the weight and volume of generator,Reduce manufacturing cost.

Description

A kind of shaftless and bearing outer rotor permanent magnet generator
Technical field
The invention belongs to electrical generator fields, specifically it is a kind of be directly installed on prime mover shaft it is shaftless and bearing Outer rotor permanent magnet generator.
Background technology
Emergency power supply is used frequently as by prime mover generator that for example gasoline engine, diesel engine are driven to use, it is desirable to this Generator unit possess lightweight, small volume, it is portable, reliable the features such as.The generator of prior art is generally all an independence A complete generator, with axle and bearing, this structure generally has former and later two bearings;A kind of hair is have also been developed in recent years The axle of motor and the direct coupled device of prime mover, such as mounting means of the SAE disk direct connections of generator shaft and diesel engine, it is this Mounting means eliminates bearing and an independent rotating shaft after the fore bearing of conventional electric generators, but still needs one.Existing skill These structures of art, it is impossible to significantly reduce the weight and volume of generator, corresponding manufacturing cost is also higher.
The content of the invention
It is an object of the invention to provide a kind of shaftless and bearing outer rotor permanent magnet generator technical scheme, i.e., it is a kind of with The direct coupled lightweight, small volume of prime mover, the technical scheme of the generator of low cost of manufacture.
It is actual above-mentioned purpose, present invention employs having structure thinking:
As shown in Fig. 2 generator uses outer-rotor structure, the axial length of generator is shortened, axial load mitigates.In this base On plinth, as shown in figure 1, by the use of prime mover (gasoline engine, diesel engine etc.) output shaft as generator amature axle, generator The mechanical load of rotating part is undertaken by prime mover rotary shaft, so that the system for not using generator shaft and bearing is constituted, while By the stationary part of generator also with prime mover stationary part direct connection so that significantly reduce generator weight and volume, Reduce manufacturing cost.
Concrete technical scheme of the invention is as follows:
A kind of shaftless and bearing prime mover outer rotor permanent magnet generator, by stator 3, rotor 2, support 1, protecgulum 6, fan blade 8, fixed Son support 11, fastener 5, fastener 10 is constituted, wherein, rotor 2, fan blade 8, flywheel 4 are rotating part, stator 3, support 1, preceding The support 11, fastener 5 of lid 6, stator, fastener 10 are stationary part, and the rotating part of generator turns with the prime mover 9 for driving Moving axis 9-1 is fastened and coupled by fastener 9-2, and rotor is distributed in outside the circumference of stator, the side wall transmitting torque of flywheel, flywheel Simultaneously as a part for cooling air channel, the fastener 10 of protecgulum 6 couples side wall with support 1 with the stationary part of prime mover 9, after Coupled with support 1 with fastener 5 again, the support of generator stationary part and rotating part all is from prime mover 9, generator sheet Body is without axle and bearing.
Further, the rotor 2 of generator is made up of yoke 2-1, magnetic pole 2-2, flywheel 4, flywheel 4 and magnetic pole 2-2, yoke 2-1 is joined together, and yoke 2-1 is axially extending along flywheel outer rim, and magnetic pole 2-2 is arranged on yoke inner periphery, all of machinery of rotor 2 Load is undertaken by the rotary shaft 9-1 of the prime mover 9 for driving.
Further, the support 1 of generator is by shell 1-1, air outlet 1-2, circumscribing flange 1-3, inner casing 1-4, deep bead 1-5 is constituted, and shell 1-1, air outlet 1-2, inner casing 1-4 constitute a c-type region, and stator 3, rotor 2 are accommodated in the inner.
Further, some rib connections are set between the shell 1-1 of the support 1 of generator, inner casing 1-4, between rib Space be air outlet 1-2.
Further, inner casing 1-4 and air outlet the 1-2 connection place of the support 1 of generator are in bell mouth shape.
Further, a circumscribing flange 1-3 is set on the support 1 of generator, it is required for installing other generators institute Device.
Further, the fan blade 8 of generator is arranged on the side wall of flywheel 4, and fan blade 8 is by the side of support 1 and support 1 Deep bead 1-5 between formed a gap 7, the axial length of gap 7 be 0.5 ~ 2mm.
Further, air is sucked from the space of the inner casing 1-4 of support 1 when the fan blade 8 of generator rotates, flows through stator Space between support 11, from air outlet 1-2 discharges.
Further, the outer rim of flywheel 4 of generator sets up a planar annular 4-1 by prime mover side, used as with duplicate removal Method used during the dynamic and static balance of flywheel 4.
The beneficial effects of the present invention are:
Using outer-rotor structure, relative to internal rotor generator, equivalent to increased the straight of circumference (air-gap surface) between stator and rotor Footpath, by existing knowledge, the generator stock utilization more effective than the generator of inner rotor core of outer-rotor structure is improved, into This has declined.But in the present invention, using the more free-revving engine of outer-rotor structure be in order to shorten the axial dimension of generator, So, directly by the use of prime mover (gasoline engine, diesel engine etc.) output shaft as generator amature axle, so as to cancel generate electricity After the axle and bearing of machine, the axial load of generator is unlikely to too big, i.e., prime mover rotary shaft can undertake the rotation of generator Partial whole mechanical loads, so as to constitute the system for not using generator shaft and bearing.The present invention can greatly reduce generator Weight and volume, reduce manufacturing cost.Further, since the parts such as fan blade and rotor flywheel constituted into one, and by air blade The reinforcement of flywheel is directly made, structure is simplified, the intensity of flywheel is improve, cost is also reduced.
Brief description of the drawings
Fig. 1 is a kind of shaftless and bearing prime mover the outer rotor permanent magnet generator structure of the present invention and its coordinates with prime mover Structural representation profile;
Fig. 2 is the stereochemical structure constructed profile of a kind of shaftless and bearing prime mover the outer rotor permanent magnet generator of the present invention.
Specific embodiment
As shown in Fig. 2 a kind of shaftless and bearing prime mover outer rotor permanent magnet generator, by stator 3, rotor 2, support 1, Protecgulum 6, the support 11, fastener 5 of fan blade 8, stator, fastener 10 are constituted, wherein, rotor 2, fan blade 8, flywheel 4 are rotating part, Stator 3, support 1, the support 11, fastener 5 of protecgulum 6, stator, fastener 10 are stationary part, the effect of fastener be mainly by Each part position as shown in Figure 2 couples with function.
As shown in figure 1, the rotating part of generator is fastened simultaneously with the rotary shaft 9-1 of the prime mover 9 for driving by fastener 9-2 Connection, rotor is distributed in outside the circumference of stator, the side wall transmitting torque of flywheel, while the side wall of flywheel is used as the one of cooling air channel Part, protecgulum 6 is coupled with fastener 10 with support 1 with the stationary part of prime mover 9, after coupled with support 1 with fastener 5 again, The support of generator stationary part and rotating part all is from prime mover 9.
As shown in Fig. 2 the rotor 2 of generator is made up of yoke 2-1, magnetic pole 2-2, flywheel 4, flywheel 4 and magnetic pole 2-2, magnetic Yoke 2-1 is joined together, and yoke 2-1 is axially extending along flywheel outer rim, and magnetic pole 2-2 is arranged on yoke inner periphery, all of machine of rotor 2 Tool load is undertaken by the rotary shaft 9-1 of the prime mover 9 for driving, therefore engine block is without installation axle and bearing, reduces generating The volume of machine, saves cost.
As shown in Fig. 2 after using outer rotor and shaftless structure, the support 1 of generator by shell 1-1, air outlet 1-2, Circumscribing flange 1-3, inner casing 1-4, deep bead 1-5 compositions, shell 1-1, air outlet 1-2, inner casing 1-4 constitute a c-type region, will Stator 3, rotor 2 are accommodated in the inner, and support 1 supports the weight and load of stator, while being moved with original with fastener 10 by protecgulum 6 The stationary part connection of machine 9, an entirety is formed by stationary part.
Some rib connections are set between shell 1-1, the inner casing 1-4 of the support 1 of generator, and the space between rib is The inside and outside circle of support is joined together and has certain mechanical strength by air outlet 1-2, some ribs, while the space between rib Air outlet as discharge air, plays a part of cooling support inner body (stator, rotor etc.).
Inner casing 1-4 and air outlet the 1-2 connection place of the support 1 of generator are in bell mouth shape, are with entering for whole system Air port, can also be used to accommodate the part of other without prejudice to air intakes.
One circumscribing flange 1-3 is set on the support 1 of generator, for installing device necessary to other generators, such as Current transformer, protective cover etc..
The fan blade 8 of generator is arranged on the side wall of flywheel 4, and fan blade 8 is by the deep bead on the side of support 1 and support 1 A gap 7 is formed between 1-5, the axial length of gap 7 is 0.5 ~ 2mm, when this is mainly designed to be rotated for improving fan blade The efficiency of cooling air circulation, this smaller efficiency in gap 7 is higher in theory, and value is after considering manufacturability and efficiency 0.5 ~ 2mm, the big generator of diameter takes large values.
The path of whole generator cooling channel is:By cold air from the space of the inner casing 1-4 of support 1 when fan blade 8 rotates (at horn mouth) suction, with base inner heat air mix, and with part (stator, rotor etc.) exchanged heat of higher temperature Amount, cold air air themperature is raised, and air flows through the space between stator support 11, from air outlet 1-2 discharges, so that actual electricity The function of machine cooling.
Because outer-rotor structure increases generator rotating part, the possibility of the dynamic and static amount of unbalance of rotating part will be made Property increase, therefore the outer rim of flywheel 4 in generator sets up a planar annular 4-1 by prime mover side, is carried out as with duplicate removal method Used during the dynamic and static balance of flywheel 4.

Claims (9)

1. a kind of shaftless and bearing outer rotor permanent magnet generator, it is characterized in that, by stator 3, rotor 2, support 1, protecgulum 6, wind The support 11, fastener 5 of leaf 8, stator, fastener 10 are constituted, wherein, rotor 2, fan blade 8, flywheel 4 are rotating part, stator 3, machine The support 11, fastener 5 of seat 1, protecgulum 6, stator, fastener 10 are stationary part, and the rotating part of generator is moved with the original for driving The rotary shaft 9-1 of machine 9 is fastened and coupled by fastener 9-2, and rotor is distributed in outside the circumference of stator, and the side wall transmission of flywheel is turned round Square a, while part of the side wall of flywheel as cooling air channel, protecgulum 6 fastener 10 and support 1 and the stationary part of prime mover 9 Point connection, after coupled with support 1 with fastener 5 again, the support of generator stationary part and rotating part all is from prime mover 9, engine block is without axle and bearing.
2. a kind of shaftless and bearing outer rotor permanent magnet generator according to claim 1, it is characterized in that rotor 2 is by yoke 2-1, magnetic pole 2-2, flywheel 4 are constituted, and flywheel 4 is joined together with magnetic pole 2-2, yoke 2-1, and yoke 2-1 axially prolongs along flywheel outer rim Stretch, magnetic pole 2-2 is arranged on yoke inner periphery, all of mechanical load of rotor 2 is undertaken by the rotary shaft 9-1 of the prime mover 9 for driving.
3. a kind of outer rotor generator according to claim 1, it is characterized in that support 1 is by shell 1-1, air outlet 1-2, outward Flange 1-3, inner casing 1-4, deep bead 1-5 compositions are connect, shell 1-1, air outlet 1-2, inner casing 1-4 constitute a c-type region, will be fixed Son 3, rotor 2 is accommodated in the inner.
4. a kind of outer rotor generator according to claim 3, it is characterized in that between the shell 1-1 of support 1, inner casing 1-4 Some rib connections are set, and the space between rib is air outlet 1-2.
5. a kind of outer rotor generator according to claim 3, it is characterized in that inner casing 1-4 and air outlet the 1-2 connection of support 1 Place is met in bell mouth shape.
6. a kind of outer rotor generator according to claim 3, it is characterized in that setting a circumscribing flange 1- on support 1 3, for installing device necessary to other generators.
7. a kind of outer rotor generator according to claim 1, it is characterized in that fan blade 8 is arranged on the side wall of flywheel 4, wind Leaf 8 is 0.5 ~ 2mm by forming a gap 7, the axial length of gap 7 between the deep bead 1-5 on the side and support 1 of support 1.
8. a kind of outer rotor generator according to claim 1, it is characterized in that by air from support 1 when fan blade 8 rotates The space suction of inner casing 1-4, flows through the space between stator support 11, from air outlet 1-2 discharges.
9. a kind of outer rotor generator according to claim 1, it is characterized in that the outer rim of flywheel 4 sets up by prime mover side Individual planar annular 4-1, uses during as the dynamic and static balance for carrying out with duplicate removal method flywheel 4.
CN201710168344.7A 2017-03-21 2017-03-21 A kind of shaftless and bearing outer rotor permanent magnet generator Pending CN106849494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710168344.7A CN106849494A (en) 2017-03-21 2017-03-21 A kind of shaftless and bearing outer rotor permanent magnet generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710168344.7A CN106849494A (en) 2017-03-21 2017-03-21 A kind of shaftless and bearing outer rotor permanent magnet generator

Publications (1)

Publication Number Publication Date
CN106849494A true CN106849494A (en) 2017-06-13

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ID=59129799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710168344.7A Pending CN106849494A (en) 2017-03-21 2017-03-21 A kind of shaftless and bearing outer rotor permanent magnet generator

Country Status (1)

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CN (1) CN106849494A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550361A (en) * 2020-06-28 2020-08-18 河北中清永晟石油科技有限公司 Novel positive displacement is electricity generation in pit device and contains its novel oil field water injection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111550361A (en) * 2020-06-28 2020-08-18 河北中清永晟石油科技有限公司 Novel positive displacement is electricity generation in pit device and contains its novel oil field water injection system

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PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170613

WD01 Invention patent application deemed withdrawn after publication