CN206274625U - A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly - Google Patents

A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly Download PDF

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Publication number
CN206274625U
CN206274625U CN201621186958.5U CN201621186958U CN206274625U CN 206274625 U CN206274625 U CN 206274625U CN 201621186958 U CN201621186958 U CN 201621186958U CN 206274625 U CN206274625 U CN 206274625U
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China
Prior art keywords
pawl pole
magnet
pawl
mounting groove
seat
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CN201621186958.5U
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黄璐
杨成武
邓泽选
黄健
沈陈聪
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ZHEJIANG ADD AUTO PARTS CO Ltd
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ZHEJIANG ADD AUTO PARTS CO Ltd
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Abstract

The utility model is related to AC generator for vehicle technical field, the alternative electric generation machine technology field of more particularly to energy-efficient aspect.Its pawl pole perpendicular to the pawl pole of main shaft seat, the pawl pole being arranged on the medial surface of the pawl pole seat including referring to that the pawl pole refers to including die joint and the side wall located at the die joint both sides;It is characterized in that:Also include the magnet installation portion for installing magnet, the magnet installation portion includes the first magnet mounting groove of the two side referred to located at the pawl pole, the pawl pole that first magnet mounting groove runs through where its pawl pole refers to;The die joint and the side wall joining place rounding, first magnet mounting groove are groove milling.Even if just finding that the magnet assembles mistake after rotor has been assembled, it is also possible to directly the magnet is taken out from magnet installation portion by first magnet mounting groove, and reinstall.Groove milling directly can process to be formed by milling machine, and processing mode is simple, low cost.

Description

A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly
Technical field
The utility model is related to AC generator for vehicle technical field, the alternative electric generation of more particularly to energy-efficient aspect Machine technical field.
Background technology
With the development of Hyundai Motor, the quantity of automobile electrical equipment is continuously increased, to the power output of automobile current generator It is required that more and more higher;Existing AC generator for vehicle all has that efficiency is not very high, typical case's Lundell pawl pole The efficiency of formula rotor alternating current generator only has about 50%, and this means that alternating current generator to be caused reaches rated output power, Will with approximately twice as power drive it.The power of loss will change into heat and accumulate in generator, add and start Cabin temperature is original just very high, so must dissipate heat, thus causes solving the problems, such as radiating again.How in original Increasing the power output of generator under some volumes turns into an important directions of automobile current generator.
Alternating current generator causes serious leakage field phenomenon to be the important of the low output of alternating current generator using claw-pole rotor Reason, in two pieces of cavitys of pawl pole built with yoke, is cased with Exciting Windings for Transverse Differential Protection thereon, and this design has serious leakage field phenomenon, Not all of magnetic flux is all used for sectioned coil and is exported with obtaining the electric current of maximum.The U of Authorization Notice No. CN 202856486, award The utility model patent for weighing at 03 on the day for announcing 2013 year 04 month provides a kind of hybrid excitation generator with magnet standing groove Use pawl pole.By being bumped into permanent magnet in magnet standing groove, after permanent magnet is filled with pawl pole portion gap, leakage field phenomenon will be big Big to reduce, this just forces more magnetic fluxs to enter stator winding from rotor, so as to improve the delivery efficiency of alternating current generator.For The assembling of magnet is facilitated to place, the pawl pole periphery that closes on of its magnet standing groove is provided with cell wall, with two relative pawl poles Between magnet is carried out it is spacing.But, the rotor of composite excitation to referring to installed in pawl pole between the polar orientation of magnet be have It is required that, do not allow anti-loaded.And the technical scheme of the patent, the installation side of magnet is just found after being assembled if in rotor To wrong, then carry out the exchange of magnet positions and be nearly impossible, whole rotor can only just be scrapped.
Utility model content
Technical purpose of the present utility model is to provide a kind of low-noise high-efficiency composite excitation formula formula pawl pole and rotor assembly, no The power output of generator can only be increased under original volume by way of composite excitation, and with assembling very high Fault-tolerance, even if magnet assembles mistake, it is also possible to be very easily adjusted.
A kind of low-noise high-efficiency composite excitation formula formula pawl pole, including perpendicular to the main shaft pawl pole seat, be arranged on the pawl Pawl pole on the medial surface of electrode seat refers to that the pawl pole refers to including die joint and the side wall located at the die joint both sides;Its feature It is:Also include the magnet installation portion for installing magnet, the magnet installation portion includes the two side referred to located at the pawl pole The first magnet mounting groove, first magnet mounting groove through its pawl pole refer to where pawl pole;The die joint and the side The joining place rounding of wall;First magnet mounting groove is groove milling.Even if just being found after rotor has been assembled described Magnet assembles mistake, it is also possible to the magnet is taken out from magnet installation portion by first magnet mounting groove directly, is laid equal stress on It is new to install.Groove milling directly can process to be formed by milling machine, and processing mode is simple, low cost.
Preferably, the pawl pole seat lateral surface of the pawl pole is provided with diversion division.Using aerodynamic principle, rotor is not When rotating with stopping, cold wind of the diversion division from air is pumped on the outside of the two of pawl pole seat can so reduce the temperature of generator, carry The output of generator high.
Preferably, the diversion division is including for the diversion seat fixed with pawl pole seat and perpendicular to the pawl The guide vane that electrode seat is set.
Preferably, there is wind-guiding space between the adjacent guide vane, it is adjacent on the circumferencial direction of rotor Two pawl poles refer to space between referring to pawl pole, and the wind-guiding space refers to that gap is Chong Die with the pawl pole.
Preferably, there is wind-guiding space between the adjacent guide vane, it is adjacent on the circumferencial direction of rotor Two pawl poles refer to space between referring to pawl pole, and the wind-guiding space refers to that gap is Chong Die with the pawl pole.
A kind of rotor assembly, including main shaft, the rotor coil on the main shaft, set along the axially opposing of the main shaft Put the pawl pole and magnet in the rotor coil both sides;The pawl pole is including the pawl pole seat perpendicular to the main shaft and sets The pawl pole put on the medial surface of pawl pole seat refers to that the pawl pole of two for being oppositely arranged pawl pole refers to the circumference side along the rotor To interval setting;The pawl pole refers to including die joint and the side wall located at the die joint both sides;The magnet passes through magnet Installation portion is fixed between refer to along two adjacent pawl poles of the circumferencial direction of the rotor, and the magnet installation portion includes being located at it In the pawl pole of a pawl pole refer to the first magnet mounting groove of two side, refer to the second magnetic of two side located at the pawl pole of another pawl pole Iron mounting groove;It is characterized in that:First magnet mounting groove refers to the pawl pole at place through its pawl pole, and second magnet is installed The length direction of groove is parallel with the length direction of first magnet mounting groove;First magnet mounting groove and second magnetic Iron mounting groove is groove milling;The joining place rounding of the die joint and the side wall.Even if after rotor has been assembled It was found that the magnet assembles mistake, it is also possible to the magnet is taken from magnet installation portion by first magnet mounting groove directly Go out, and reinstall.
Preferably, the magnet installation portion is also included located at the close pawl pole seat side of second magnet mounting groove The magnet location division of end;The magnet location division is included in first location division for axially being positioned to magnet of the main shaft The second location division positioned to magnet with the radial direction in the main shaft.The magnet location division is when magnet is assembled to magnet Positioned, facilitated the assembling of magnet, and cause the installation site of the magnet than more consistent.
Preferably, the pawl pole seat lateral surface of the pawl pole is provided with diversion division;The diversion division include be used for it is described The fixed diversion seat of pawl pole seat and the guide vane set perpendicular to pawl pole seat.Using aerodynamic principle, rotor When gyrating, cold wind of the diversion division from air is pumped on the outside of the two of pawl pole seat can so reduce the temperature of generator, Improve the output of generator.The cold wind that diversion division is pumped into can pass through the diversion division via wind-guiding space, further through institute Pawl pole space through the rotor is stated, whole rotor is lowered the temperature.
Preferably, there is wind-guiding space between the adjacent guide vane, it is adjacent on the circumferencial direction of rotor Two pawl poles refer to space between referring to pawl pole, and the wind-guiding space refers to that gap is Chong Die with the pawl pole.
Preferably, the guide vane is on the diversion seat, along the uneven spacing of the circumferencial direction of the rotor point Cloth.Using uneven guide vane, the strength of turbulence of the uniform caused regular pressure of spacing can be reduced.
Brief description of the drawings
Fig. 1 rotor structures schematic diagram one.
Fig. 2 rotor structures schematic diagram two.
Fig. 3 the first magnet mounting groove structural representations.
Fig. 4 the second magnet mounting groove structural representations.
Specific embodiment
Implementation method of the present utility model is described in detail below in conjunction with accompanying drawing.
A kind of high-efficiency and energy-saving type alternating current generator, including casing, be fixedly installed on the stator three-phase of the casing inner wall around Group and the rotor with hybrid excitation in the three-phase stator winding.The three-phase stator winding connects using flat type copper wire is star-like Method.
The structure of rotor with hybrid excitation such as Fig. 1, including main shaft 1, the rotor coil on main shaft(Not shown in figure), edge The axially opposing pawl pole 2 and magnet 3 for being arranged on rotor coil both sides of main shaft 1.Pawl pole 2 includes the pawl pole perpendicular to main shaft 1 Seat 21 and the pawl pole being arranged on the medial surface of pawl pole seat 21 refer to 22, two for being oppositely arranged pawl pole(2a、2b)Pawl pole refer to 22 along rotor circumferencial direction interval setting.Two adjacent pawl poles refer to sky between referring to pawl pole on the circumferencial direction of rotor Gap 23.Magnet 3 is fixed on by magnet installation portion and referred between 22 along two adjacent pawl poles of the circumferencial direction of rotor.
Pawl pole refers to that 22 include die joint 221 and the side wall 222 located at the both sides of die joint 221.Side wall 222 and die joint 221 use round-corner transition, can increase the chamfering area that pawl pole refers to 22.Pawl pole refers to that 22 chamferings are uniform, can reduce rotor rotation logical Cross the radial direction Reeb amplitude of variation and pace of change during stator core tooth angle, thus reduce generator stator, rotor structures vibration and Its electromagnetic noise for causing.
Magnet installation portion include located at pawl pole 2a pawl pole refer to the first magnet mounting groove 41 of two side 222, located at pawl pole The pawl pole of 2b refers to the second magnet mounting groove 42 of two side.The length side of the first magnet mounting groove 41 and the second magnet mounting groove 42 To parallel.Such as the pawl pole that Fig. 3, the first magnet mounting groove 41 run through where its pawl pole refers to;Such as Fig. 4, the second magnet mounting groove 42 by The top that pawl pole refers to extends towards the direction of its pawl pole seat, and refers to the pawl pole at place not through its pawl pole so that the second magnet The end of the close pawl pole seat side of mounting groove 42 forms magnet location division 43.The axial direction that magnet location division 43 is included in main shaft is right The first location division 431 that magnet is positioned and the second location division 432 that is positioned to magnet of radial direction in main shaft.
Such as Fig. 2, pawl pole 21 lateral surfaces of seat of pawl pole 2 are provided with diversion division 5.Diversion division 5 includes being used for consolidating with pawl pole seat 21 Fixed diversion seat 51 and the guide vane 52 set perpendicular to pawl pole seat 21.There is wind-guiding between adjacent guide vane 52 Space 53, wind-guiding space 53 refers to that space 23 partly overlaps with pawl pole.In order to reduce noise, guide vane 52 on diversion seat 51, It is distributed along the uneven spacing of the circumferencial direction of rotor.
Generator of the present utility model, pawl pole 2 in the extremely preceding groove milling of paw and can will enter axle with coil windings, then will collection Electric ring is pressed into rotor main shaft 1, is connected with coil windings line.The difference for making rotor diameter and diameter of stator bore by turning is 0.6mm, it is ensured that rotor outer circle, without scratch, is finally inserted permanent magnet 3 with stator inner ring, press-fits the diversion division 5 with guide vane, most Dipping lacquer is fixed afterwards.Just there is electric current to pass through when direct current is passed through to collector ring, in Exciting Windings for Transverse Differential Protection, produce axial magnetic flux, make wherein One pawl pole is geomagnetic into N poles, and another pawl pole is geomagnetic into S poles, so that six pairs of interlaced magnetic poles are formed, when rotor turns When dynamic, the magnetic field of rotation is formed.
50% or so, generator of the present utility model is improved the efficiency of the generator of prior art on the basis of being somebody's turn to do 20%, this means that alternating current generator to be caused reaches rated output power, and the power for driving just is greatly reduced, while A subsidiary benefit is that the heat that must be dissipated also is greatly reduced.The exciting current of Exciting Windings for Transverse Differential Protection reduces, excitation loss Also correspondingly reduce, the efficiency of generator is improved.Meanwhile, the side wall that pawl pole refers to uses round-corner transition with die joint, can increase The chamfering area that pawl pole refers to.Pawl pole refers to that chamfering is more uniform, radial load when can reduce rotor rotation by stator core tooth angle Ripple amplitude of variation and pace of change, so as to reduce the vibration of generator stator, rotor structures and its electromagnetic noise for causing.Generator Low-speed performance is good, in low cruise, the electric current needed for also meeting electrical apparatus for vehicle use.
Although being described in conjunction with the accompanying implementation method of the present utility model, those of ordinary skill in the art can be in institute Various deformations or amendments are made in the range of attached claim.

Claims (10)

1. a kind of low-noise high-efficiency composite excitation formula pawl pole, including pawl pole seat perpendicular to main shaft, be arranged in the pawl pole seat Pawl pole on side refers to that the pawl pole refers to including die joint and the side wall located at the die joint both sides;It is characterized in that:Also Including the magnet installation portion for installing magnet, the magnet installation portion includes the first magnetic of the two side referred to located at the pawl pole Iron mounting groove, first magnet mounting groove refers to the pawl pole at place through its pawl pole;The die joint and the side wall joining place Rounding;First magnet mounting groove is groove milling.
2. a kind of low-noise high-efficiency composite excitation formula pawl pole according to claim 1, it is characterised in that:The pawl pole of the pawl pole Seat lateral surface is provided with diversion division.
3. a kind of low-noise high-efficiency composite excitation formula pawl pole according to claim 2, it is characterised in that:The diversion division includes For the diversion seat and guide vane perpendicular to pawl pole seat setting fixed with pawl pole seat.
4. a kind of low-noise high-efficiency composite excitation formula pawl pole according to claim 3, it is characterised in that:The adjacent water conservancy diversion There is wind-guiding space, two adjacent pawl poles refer to space between referring to pawl pole on the circumferencial direction of rotor, institute between blade State wind-guiding space and refer to that gap is Chong Die with the pawl pole.
5. a kind of low-noise high-efficiency composite excitation formula pawl pole according to claim 4, it is characterised in that:The adjacent water conservancy diversion There is wind-guiding space, two adjacent pawl poles refer to space between referring to pawl pole on the circumferencial direction of rotor, institute between blade State wind-guiding space and refer to that gap is Chong Die with the pawl pole.
6. a kind of rotor assembly, including main shaft, the rotor coil on the main shaft, the axially opposing setting along the main shaft In the pawl pole and magnet of the rotor coil both sides;The pawl pole is included perpendicular to the pawl pole seat of the main shaft and setting Pawl pole on the medial surface of pawl pole seat refers to that the pawl pole of two for being oppositely arranged pawl pole refers to the circumferencial direction along the rotor Interval setting;The pawl pole refers to that, including die joint and the side wall located at the die joint both sides, the magnet is pacified by magnet Dress portion is fixed between refer to along two adjacent pawl poles of the circumferencial direction of the rotor, and the magnet installation portion includes being located therein The pawl pole of one pawl pole refers to the first magnet mounting groove of two side, refers to the second magnet of two side located at the pawl pole of another pawl pole Mounting groove;It is characterized in that:First magnet mounting groove refers to the pawl pole at place, second magnet mounting groove through its pawl pole Length direction it is parallel with the length direction of first magnet mounting groove;First magnet mounting groove and second magnet Mounting groove is groove milling;The joining place rounding of the die joint and the side wall.
7. a kind of rotor assembly according to claim 6, it is characterised in that:The magnet installation portion is also included located at described The magnet location division of the end of the close pawl pole seat side of the second magnet mounting groove;The magnet location division is included in the main shaft Axially the first location division for being positioned to magnet and the second location division for being positioned to magnet of the radial direction in the main shaft.
8. a kind of rotor assembly according to claim 7, it is characterised in that:The pawl pole seat lateral surface of the pawl pole is provided with Diversion division;The diversion division is including the diversion seat for being fixed with pawl pole seat and perpendicular to pawl pole seat setting Guide vane.
9. a kind of rotor assembly according to claim 8, it is characterised in that:Have between the adjacent guide vane and lead Wind space, two adjacent pawl poles refer to space, the wind-guiding space and institute between referring to pawl pole on the circumferencial direction of rotor State pawl pole and refer to that gap overlaps.
10. a kind of rotor assembly according to claim 8 or claim 9, it is characterised in that:The guide vane is in the diversion seat On, it is distributed along the uneven spacing of the circumferencial direction of the rotor.
CN201621186958.5U 2016-11-04 2016-11-04 A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly Active CN206274625U (en)

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Application Number Priority Date Filing Date Title
CN201621186958.5U CN206274625U (en) 2016-11-04 2016-11-04 A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly

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Application Number Priority Date Filing Date Title
CN201621186958.5U CN206274625U (en) 2016-11-04 2016-11-04 A kind of low-noise high-efficiency composite excitation formula pawl pole and rotor assembly

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CN206274625U true CN206274625U (en) 2017-06-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107834726A (en) * 2017-11-22 2018-03-23 浙江安美德汽车配件有限公司 A kind of asymmetric low noise rotor assembly
CN108110921A (en) * 2017-12-29 2018-06-01 浙江安美德汽车配件有限公司 Composite excitation formula AC generator for vehicle based on LIN agreements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107834726A (en) * 2017-11-22 2018-03-23 浙江安美德汽车配件有限公司 A kind of asymmetric low noise rotor assembly
CN108110921A (en) * 2017-12-29 2018-06-01 浙江安美德汽车配件有限公司 Composite excitation formula AC generator for vehicle based on LIN agreements

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