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CN109546791A - Motor - Google Patents

Motor Download PDF

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Publication number
CN109546791A
CN109546791A CN201811561239.0A CN201811561239A CN109546791A CN 109546791 A CN109546791 A CN 109546791A CN 201811561239 A CN201811561239 A CN 201811561239A CN 109546791 A CN109546791 A CN 109546791A
Authority
CN
China
Prior art keywords
stator
motor
rotor
insulation plate
armature spindle
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
CN201811561239.0A
Other languages
Chinese (zh)
Inventor
唐小元
杨锡辉
刘晓宁
陈晓军
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.)
Jiehe Electric Machine (shenzhen) Co Ltd
Original Assignee
Jiehe Electric Machine (shenzhen) 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 Jiehe Electric Machine (shenzhen) Co Ltd filed Critical Jiehe Electric Machine (shenzhen) Co Ltd
Priority to CN201811561239.0A priority Critical patent/CN109546791A/en
Publication of CN109546791A publication Critical patent/CN109546791A/en
Pending legal-status Critical Current

Links

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
    • H02K5/10Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • H02K1/145Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/04Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28Layout of windings or of connections between windings
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

The present invention is suitable for motor field, provides a kind of motor suitable for vacuum pump, comprising: rotor including armature spindle, the fixed bearing for supporting the armature spindle and is fixed on the rotor magnetic pole rotated on the armature spindle with the armature spindle;Stator is wound around the peripheral side of the rotor magnetic pole, and for generating the magnetic field for making the rotor rotation, there are air gaps between the stator and the rotor;Pump case, for fixing the stator and the rotor;Isolation cover, for by described in stator and the rotor, the isolation cover includes circular top plate and the side plate that is connected to the circular top plate side and extends downwardly, and the side plate is inserted into the air gap and its lower end and the pump case are tightly connected.Pernicious gas is isolated by the airtight setting of isolation cover and pump case in motor provided by the invention, to prevent pernicious gas from entering stator region corrosion stator.

Description

Motor
Technical field
The invention belongs to motor field more particularly to a kind of motors suitable for vacuum pump.
Background technique
The purpose of the fuel vapor purification EVAP system design of automobile is to prevent the steam in fuel tank from entering atmosphere at present, dirty Atmosphere is contaminated, the oil consumption of automobile is improved, the gasoline vapour in fuel tank enters charcoal canister through pipeline from separation valve outlet, in steam Petrol molecule be tightly held by activated carbon, the control unit of system is canister control solenoid valve, can not active will be steamed in fuel oil Vapour is drawn into inlet manifold, and product of new generation increases a vacuum pump, so as to active from oil vapour is extracted, is greatly mentioned The efficiency of high system, the core component of vacuum pump is high-speed brushless DC electromotor.
Existing, vacuum pump and motor integration design pump the gases such as intracorporal petrol molecule and enter directly into motor In stator structure, corrodes stator and matched electronic component, influence performance and the service life of motor.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of motor is provided, aims to solve the problem that gas Medium enters the problem of stator structure.
The present invention is implemented as follows:
A kind of motor is suitable for vacuum pump, comprising:
Rotor including armature spindle, the fixed bearing for supporting the armature spindle and is fixed on the armature spindle with described turn The rotor magnetic pole of sub- axis rotation;
Stator is wound around the peripheral side of the rotor magnetic pole, for generating the magnetic field for making the rotor rotation, the stator There are air gaps between the rotor;
Pump case, for fixing the stator and the rotor;
Isolation cover, including circular top plate and the side plate for being connected to the circular top plate side and extending downwardly, the side plate It is inserted into the air gap and its lower end and the pump case is tightly connected;The isolation cover and the pump case are by the stator and described turn It is isolated between son.
Further, there are two the bearings, it is respectively positioned on the lower section of the rotor magnetic pole.
Further, it there are two the bearings, is located above and below the rotor magnetic pole.
Further, the motor is brushless motor, and the stator includes stator core, is wound around on the stator core And the driving circuit in magnetic field is formed with the coil of the stator core insulation and to the coil power supply, the stator core is solid It is scheduled on the pump case.
Further, the stator further include respectively lid be located at the stator core upper and lower surface upper insulation plate and it is lower absolutely Listrium, the stator core include ring portion and six stator tooths connecting the ring portion and inwardly stretch out, six stator tooths Be equally spaced and central symmetry, there are six the coils, and correspondence is wound around on six stator tooths, the stator core and It is isolated in a manner of fastening up and down between the coil with the upper insulation plate and the lower insulation plate, six coils In any two centrosymmetric described coils be electrically connected to each other, and be respectively formed a phase winding;Each phase winding all has Two electric connecting terminals, one of them of each phase winding electric connecting terminal is connected with each other together, and another electrical connection End is electrically connected with the driving circuit.
Further, the stator tooth is equipped with the side protrusion to horizontal two sides, two neighboring institute in the end away from ring portion Formation accommodates the port that the electric wire of the coil is placed between stating the side protrusion of stator tooth.
Further, the stator core further includes multiple being connected to the ring portion and outwardly directed flange, Duo Gesuo Flange is stated along the ring portion uneven distribution.
Further, the first insulating trip is arranged in the position joined with the lower insulation plate in the upper insulation plate, under described The second insulating trip is arranged in the position joined with the upper insulation plate in insulation board, and the upper insulating trip and the lower insulating trip are affixed It closes.
Further, the upper insulation plate is equipped with upward upper protrusion, the lower insulation in the end far from the winding Plate is equipped with downward lower convexity in the end far from the winding.
Further, the motor further includes impeller, and the impeller is fixed on the armature spindle and is located at the bearing Lower section, the impeller rotates with the armature spindle and rotated.
Pernicious gas is isolated by the airtight setting of isolation cover and pump case, to prevent harmful gas in motor provided by the invention Body enters stator region corrosion stator.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.
Fig. 1 is the sectional view of motor provided in an embodiment of the present invention;
Fig. 2 is another sectional view of motor provided in an embodiment of the present invention;
Fig. 3 is the top view of motor provided in an embodiment of the present invention;
Fig. 4 is the structural schematic diagram of stator and rotor in the embodiment of the present invention;
Fig. 5 is the structural schematic diagram of stator core in the embodiment of the present invention;
Fig. 6 is the structural schematic diagram of upper insulation plate in the embodiment of the present invention;
Fig. 7 is the structural schematic diagram of lower insulation plate in the embodiment of the present invention.
Drawing reference numeral explanation:
Specific embodiment
In order to which the purpose of the present invention, technical solution and point is more clearly understood, with reference to the accompanying drawings and embodiments, to this Invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to It is of the invention in limiting.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.
It should also be noted that, the positional terms such as left and right, upper and lower in the embodiment of the present invention, are only relatively general each other It reads or be to refer to the normal operating condition of product, and should not be regarded as restrictive.
Fig. 1 to Fig. 7 is please referred to, the present embodiment provides a kind of motors, are suitable for vacuum pump, including rotor 10, stator 20, use Pump case 30 in fixed stator 20 and rotor 10 and isolation cover 40 that stator 20 and rotor 10 are isolated.
Rotor 10 includes armature spindle 11, the fixed bearing 12 for supporting armature spindle 11 and is fixed on armature spindle 11 with armature spindle The rotor magnetic pole 13 of 11 rotations;
Stator 20 is wound around the peripheral side of rotor magnetic pole 13, for generate make rotor 10 rotate magnetic field, stator 20 and turn There are air gaps between son 10;
Isolation cover 40, including circular top plate 41 and the side plate 42 for being connected to 41 side of circular top plate and extending downwardly, side plate 42 insertion air gaps and its lower end and pump case 30 are tightly connected, isolation cover 40 and pump case 30 will be carried out between stator 20 and rotor 10 every From.
Motor provided in this embodiment is suitable for integrated vacuum pump, and pump case 30, which is equipped with, accommodates stator 20 and rotor 10 Integrated space, which is separated, forms two independences and air is not attached to logical space, accommodate respectively by isolation cover 40 Pernicious gas is isolated by isolation cover 40 and the airtight setting of pump case 30, to prevent pernicious gas from entering in rotor 10 and stator 20 20 zonal corrosion stator 20 of stator.
Isolation cover 40 is made of non-magnetic material.To avoid the influence to 10 magnetic field of stator 20 and rotor.
Referring to figure 2. to 3, motor is brushless motor, and stator 20 includes stator core 21, is wound around on stator core 21 simultaneously Form with the coil 22 of the insulation of stator core 21 and to the power supply of coil 22 driving circuit (not shown) in magnetic field, stator core 21 It is fixed on pump case 30.Stator core 21 and coil 22 are wound around the peripheral side of rotor magnetic pole 13, stator core 21 and rotor magnetic There are air gaps between pole 13.The rotor 10 that is set as of the air gap provides revolution space, provides insertion space for isolation cover 40, simultaneously Channel auxiliary temperature-reducing as air circulation.Isolation cover 40 covers the upper end of armature spindle 11 and is tightly connected with pump case 30, from And the structures such as driving circuit, coil 22 is avoided to contact pernicious gas, corroded by it.
Further, referring to figure 4. to 6, stator 20 further includes covering to be located at the upper exhausted of 21 upper and lower surface of stator core respectively Listrium 23 and lower insulation plate 24, stator core 21 include ring portion 211 and connecting ring portion 211 and six stator tooths inwardly stretched out 212, six stator tooths 212 are equally spaced and central symmetry, and there are six coils 22, and correspondence is wound around on six stator tooths 212, It is isolated in a manner of fastening up and down between stator core 21 and coil 22 with upper insulation plate 23 and lower insulation plate 24, six lines Any two centrosymmetric coils 22 are electrically connected to each other in circle 22, and are respectively formed a phase winding;Each phase winding all has two One of electric connecting terminal of a electric connecting terminal, each phase winding is connected with each other together, and another electric connecting terminal and driving circuit electricity Connection.I.e. motor is three-phase brushless motor, and by having in the case where guaranteeing to run at high speed to 22 reasonable Arrangement of coil and route design Effect reduces the occupied space of stator 20, to be conducive to entire motor miniaturization.Reasonable magnetic Circuit Design optimizes electricity The heat dissipation of machine, multi-coil setting increase 20 heat-delivery surface of coil, are conducive to heat loss through radiation, in addition, six 22 circles of coil Column dissipate so that with biggish spare space between coil 22 together with the air gap between rotor 10 and stator 20 for air circulation Heat provides convenience.
Stator core 21 further includes the multiple flanges 214 for being connected to 211 peripheral side of ring portion, is connected for fixing with pump case 30 It connects.Multiple flanges 214 are along 211 uneven distribution of ring portion.Uneven arrangement purpose is convenient installation, particularly, flange 214 It is the fixed connection structure that stator 20 is fixed to pump case 30, by non-uniform layout design, operator only needs flange 214 and the corresponding mounting hole of pump case 30 aligned, installation fixation can be carried out, without differentiating the positive and negative of the other components of stator 20 Face and position.
Referring once again to Fig. 5, stator tooth 212 is equipped with the side protrusion to horizontal two sides in the end away from ring portion 211, adjacent The port 213 for accommodating the electric wire merging of coil 22 is formed between the side protrusion of two stator tooths 212.The setting of side protrusion limits coil 22 circle around region, meanwhile, reduce the size of port 213, to reduce leakage field of the coil 22 at this.Port 213 is line The dummy notch for enclosing 22 windings minimizes the size of port 213 in the case where meeting the requirement of winding technique.
Referring to figure 4., Fig. 6 and Fig. 7, it is real by upper insulation plate 23 and lower insulation plate 24 between stator core 21 and coil 22 Now it is dielectrically separated from.Upper insulation plate 23 is provided with the first insulating trip 231, lower insulation plate at the position connected with lower insulation plate 24 24 are provided with the second insulating trip 241 at the position connected with upper insulation plate 23.When on upper insulation plate 23 and lower insulation plate 24 When lower fastening, the first insulating trip 231 fits with the second insulating trip 241.Because of the first insulating trip 231 and the second insulating trip 241 There is coincidence interface portion, it is ensured that being engaged after upper insulation plate 23 and the assembly of lower insulation plate 24, to avoid in assembling process Because turning with error or upper insulation plate 23 and lower insulation plate 24 to cause the situation of defective insulation to occur there may be individual defective products, So that it is guaranteed that the insulation stability between stator core 21 and coil 22.
Fig. 6 and Fig. 7 are please referred to, upper insulation plate 23 is equipped with upward upper raised 232 in the end far from ring portion 211, lower exhausted Listrium 24 is equipped with downward lower convexity 242 in the end far from ring portion 211.Upper raised 232 and lower convexity 242 setting, into one Step defines the winding region of coil 22.Especially when the size of side protrusion is smaller, and the circle number of 22 winding of coil is more and makes Coil 22 may be detached from winding region from port 213, and upper raised 232 and lower convexity 242 can suitably increase according to actual needs Highly, to avoid the occurrence of this.
In the present embodiment, armature spindle 11 is fixedly connected on pump case 30 by two bearings 12.Bearing 12 and rotor magnetic There are two types of the positional relationships of pole 13.Fig. 1 is please referred to, two bearings 12 are respectively positioned on the lower section of rotor magnetic pole 13.The arrangement is convenient for axis Hold the fixed installation of 12 and pump case 30.Another positional relationship, referring to figure 2., two bearings 12 are located at rotor magnetic pole Above and below in the of 13, pump case 30 has certain accommodation space above stator 20, and bearing 12 has one to be located at rotor magnetic pole 13 Top, then above-mentioned accommodation space is utilized, and reduce rotor magnetic pole 13 arrive 30 lower surface of pump case distance so that The overall dimensions entirely pumped reduce.
Fig. 1 or Fig. 2 is please referred to, motor further includes impeller 50, and impeller 50 is fixed on armature spindle 11 and is located at bearing 12 Lower section, impeller 50 are rotated with armature spindle 11 and are rotated.Impeller 50 is the core important document of vacuum pump, is mainly used for vacuumizing.In addition, By the rotation of impeller 50, air is accelerated to be flowed, accelerate heat dissipation, reduces temperature rise when motor operation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (10)

1. a kind of motor is suitable for vacuum pump characterized by comprising
Rotor including armature spindle, the fixed bearing for supporting the armature spindle and is fixed on the armature spindle with the armature spindle The rotor magnetic pole of rotation;
Stator is wound around the peripheral side of the rotor magnetic pole, for generating the magnetic field for making the rotor rotation, the stator and institute State between rotor that there are air gaps;
Pump case, for fixing the stator and the rotor;
Isolation cover, including circular top plate and the side plate for being connected to the circular top plate side and extending downwardly, the side plate insertion The air gap and its lower end and the pump case are tightly connected;The isolation cover and the pump case by the stator and the rotor it Between be isolated.
2. motor as described in claim 1, which is characterized in that there are two the bearings, is respectively positioned under the rotor magnetic pole Side.
3. motor as described in claim 1, which is characterized in that there are two the bearings, is located at the rotor magnetic pole Above and below.
4. the motor as described in claims 1 to 3 is any, which is characterized in that the motor is brushless motor, and the stator includes Stator core is wound around on the stator core and with the coil of the stator core insulation and to the coil power supply to be formed The driving circuit in magnetic field, the stator core are fixed on the pump case.
5. motor as claimed in claim 4, which is characterized in that the stator further includes covering to be located on the stator core respectively The upper insulation plate and lower insulation plate of lower surface, the stator core include ring portion and connect the ring portion and inwardly stretch out six Stator tooth, six stator tooths are equally spaced and central symmetry, and there are six the coils, and it is corresponding be wound around six it is described fixed On sub- tooth, between the stator core and the coil with the upper insulation plate and the lower insulation plate in a manner of fastening up and down Be isolated, the centrosymmetric coil of any two in six coils is electrically connected to each other, and be respectively formed a phase around Group;Each phase winding all has two electric connecting terminals, and one of them of each phase winding electric connecting terminal is connected with each other Together, another electric connecting terminal is electrically connected with the driving circuit.
6. motor as claimed in claim 5, which is characterized in that the stator tooth is equipped in the end away from ring portion to level two The side protrusion of side forms the port for accommodating the electric wire merging of the coil between the side of the two neighboring stator tooth is raised.
7. motor as claimed in claim 5, which is characterized in that the stator core further includes multiple being connected to the ring portion simultaneously Outwardly directed flange, multiple flanges are along the ring portion uneven distribution.
8. motor as claimed in claim 5, which is characterized in that the upper insulation plate is in the position joined with the lower insulation plate First insulating trip is set, and the second insulating trip is arranged in the position joined with the upper insulation plate in the lower insulation plate, described exhausted Embolium and the lower insulating trip fit.
9. motor as claimed in claim 8, which is characterized in that the upper insulation plate far from the winding end be equipped with to On upper protrusion, the lower insulation plate far from the winding end be equipped with downward lower convexity.
10. motor as claimed in claim 4, which is characterized in that the motor further includes impeller, and the impeller is fixed on described Lower section on armature spindle and positioned at the bearing, the impeller are rotated with the armature spindle and are rotated.
CN201811561239.0A 2018-12-20 2018-12-20 Motor Pending CN109546791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811561239.0A CN109546791A (en) 2018-12-20 2018-12-20 Motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811561239.0A CN109546791A (en) 2018-12-20 2018-12-20 Motor

Publications (1)

Publication Number Publication Date
CN109546791A true CN109546791A (en) 2019-03-29

Family

ID=65855529

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811561239.0A Pending CN109546791A (en) 2018-12-20 2018-12-20 Motor

Country Status (1)

Country Link
CN (1) CN109546791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472987A (en) * 2020-05-22 2020-07-31 核工业理化工程研究院 Corrosive gas circulating pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007049866A (en) * 2005-08-12 2007-02-22 Toshiba Industrial Products Manufacturing Corp Resin can for canned motor and production method therefor, injection mold, canned motor, and canned motor pump
JP2014039366A (en) * 2012-08-13 2014-02-27 Ebara Corp Canned motor and vacuum pump
US20150008784A1 (en) * 2013-07-02 2015-01-08 Nidec Corporation Motor
CN105099013A (en) * 2014-04-23 2015-11-25 德昌电机(深圳)有限公司 Stator assembly of motor and motor with stator assembly
US20160261161A1 (en) * 2015-02-27 2016-09-08 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg Stator component group for an electric motor
CN107425627A (en) * 2016-04-15 2017-12-01 标立电机有限公司 Electro-motor, especially pump motor
CN209233622U (en) * 2018-12-20 2019-08-09 捷和电机制品(深圳)有限公司 Motor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007049866A (en) * 2005-08-12 2007-02-22 Toshiba Industrial Products Manufacturing Corp Resin can for canned motor and production method therefor, injection mold, canned motor, and canned motor pump
JP2014039366A (en) * 2012-08-13 2014-02-27 Ebara Corp Canned motor and vacuum pump
US20150008784A1 (en) * 2013-07-02 2015-01-08 Nidec Corporation Motor
CN105099013A (en) * 2014-04-23 2015-11-25 德昌电机(深圳)有限公司 Stator assembly of motor and motor with stator assembly
US20160261161A1 (en) * 2015-02-27 2016-09-08 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Wuerzburg Stator component group for an electric motor
CN107425627A (en) * 2016-04-15 2017-12-01 标立电机有限公司 Electro-motor, especially pump motor
CN209233622U (en) * 2018-12-20 2019-08-09 捷和电机制品(深圳)有限公司 Motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472987A (en) * 2020-05-22 2020-07-31 核工业理化工程研究院 Corrosive gas circulating pump

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