CN106451832A - Electromotor for electrical compressor of internal combustion engine - Google Patents

Electromotor for electrical compressor of internal combustion engine Download PDF

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Publication number
CN106451832A
CN106451832A CN201610657505.4A CN201610657505A CN106451832A CN 106451832 A CN106451832 A CN 106451832A CN 201610657505 A CN201610657505 A CN 201610657505A CN 106451832 A CN106451832 A CN 106451832A
Authority
CN
China
Prior art keywords
stator
motor
combustion engine
internal combustion
rotor
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
CN201610657505.4A
Other languages
Chinese (zh)
Inventor
S.德温特
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of CN106451832A publication Critical patent/CN106451832A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02K1/146Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148Sectional cores
    • 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02Drives of pumps; Varying pump drive gear ratio
    • F02B39/08Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • 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
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/2713Inner rotors the magnetisation axis of the magnets being axial, e.g. claw-pole type
    • 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
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to an electromotor (14) of an electrical compressor of an internal combustion engine. The electromotor includes a rotor (58); a drive shaft (12), wherein the rotor is fixedly arranged on the drive shaft at least in an anti-torque manner; a stator (36) radially surrounding the rotor (58), wherein the stator is fixed in an electromotor housing (16) and has three stator teeth (50), windings (35) are arranged on roots (52) of the stator teeth, the windings are limited in radial direction through the tooth crowns (54) having a size larger than that of the roots (52). To achieve a bipolar execution mode having excellent acoustics performance, according to the invention, the stator (36) has a radial inner stator member (46) on which stator teeth (50) are formed, the stator teeth are connected to each other in a radial inner zone and can be wound from an outer part, wherein radial outer groove holes (56) among the tooth crowns (50) are sealed through a return ring (48) forming a second stator member, and the return ring surrounds three stator teeth (50) in the radial direction.

Description

Motor for the electric compressor of internal combustion engine
Technical field
The present invention relates to a kind of motor of the electric compressor for internal combustion engine, it carries rotor, drive shaft and radially wraps Enclose the stator of described rotor, described rotor is at least antitorque to be fixedly placed in described drive shaft, and described stator is fixed on electronic In casing body and there are three stator tooths, the tooth root of described stator tooth is disposed with winding, described winding diametrically by Crown limits, and described crown circumferentially has the size bigger than tooth root.
Background technology
Such electric compressor is applied in modern internal combustion engine, so that for example when unexpected load rises demand The admission pressure that abundance can actively be provided at short notice is for using.Come particularly with small displacement and high-power internal combustion engine Say, or this electric compressor is realizing the extra recompression for exhaust-driven turbo-charger exhaust-gas turbo charger close to idle rotation area, or real The now precommpression to exhaust-driven turbo-charger exhaust-gas turbo charger, thus can act on and overcome so-called supercharging blind area.As unique pressurizing pack Using being also feasible in internal combustion engine.
So the rotor of compressor using and impeller thus must accelerate to rotating speed within the time less than 0.3 second More than 65000U/min.In order to realize this point it is necessary that using rotor to be accelerated as little as possible, because as little as possible Rotor there is less the moment of inertia.Here is kept as little as possible it should use the electronic of bipolar system in order to be able to make electric frequency Machine.Need three groove stators in order to form this bipolar system electric field.
Such motor carrying three stator tooths is for example disclosed in document CN 103 370 855 A1.And And it is also known that this motor for driving regulating valve in EP 0,375 050.
The drawbacks of this motor described has is, is led to by the group credit union that bipolar system rotor and three groove stators are constituted to fixed The high impact forces of sub- tooth, thus produce and tremble, the acoustic characteristic of the described bad luck leading to motor of trembling.When propping up erection in crown Put larger groove perforate so that when installing insertion coil, this shortcoming is exaggerated again.
Content of the invention
Therefore the technical problem to be solved is, provides a kind of the electronic of electric compressor for internal combustion engine Machine, described motor can accelerate paramount rotating speed within the shortest time, and described motor has relatively low electric frequency and leads to Relatively low vibration, thus realize improved acoustic properties.
Described technical problem is solved by the motor of the electric compressor for internal combustion engine, described electronic equipment rotor;Drive Moving axis, rotor is at least antitorque to be fixedly placed in described drive shaft;Radially around the stator of rotor, described stator is fixed on electricity In motivation housing and there are three stator tooths, the tooth root of described stator tooth is disposed with winding, described winding radially leads to Cross crown to be defined, described crown circumferentially has the size bigger than tooth root wherein, stator has the stator elements of inner radial, Described stator elements are configured with stator tooth, described stator tooth is connected with each other in radial inner region and can be from outside quilt Winding, wherein, the groove perforate of the radially outer between crown is passed through to constitute non-return ring (the R ü of the second stator elements Ckschlussring) it is closed, described non-return ring is diametrically around three stator tooths.
Stator has the stator elements of inner radial, constitutes stator tooth in described stator elements, and described stator tooth is inside in footpath It is connected with each other in portion region and can be wound from outside, wherein, structure is passed through in the groove perforate of the radially outer between crown Become the non-return ring seal of the second stator elements, described non-return ring, radially around three stator tooths, thus, significantly improves motor The rigidity of stator and thus reduce its vibration tendency, thus significantly improving the acoustic properties of motor.Further, it is also possible to it is right Stator tooth is implemented from outside direct winding, thus can realize the volume that especially can automate well when producing in enormous quantities Around.
Preferably, non-return ring is shape-ordinatedly arranged on internal stator part, thus avoid non-return ring relative interior fixed The relative motion of component and especially rotating.Thus, also avoid the space between two stator elements, described space then can drop simultaneously Low rigidity.
Particularly preferred according to the embodiment of the present invention in, rotor design be bipolar system.Thus reduce motor Base frequency.The relatively low electric frequency being led to extraly simplifies the electronic unit for controlling motor.
When rotor has magnetic element, the described magnetic element diametrically opposite magnetized magnet ring of composition on the driving shaft, Then obtain the design being especially susceptible to construct of motor.The additional configurations of rotor (magnet positions in the rotor) are saved Go.
In a modification of the present invention mode, magnet is bonded on axle.This eliminate for fixing the extra of magnet Component.
Preferably, rotor has multiple magnetic elements being sequentially arranged vertically.Reduce in this way in magnet Loss, be equivalent to it and pass through in the stator to be divided into the effect that lamination (Bleche) is realized vertically.
When magnet ring is consisted of Semicircular magnetic element hence it is evident that simplifying assembling, described magnetic element is real at this Apply in mode radially from outside mounted, and thus not necessarily like pushing sleeve such necessary to full circle magnet on whole axle.
It is also advantageous that, the packaging material being made up of glass fibre or case radially surround magnet ring, and thus gram Take occurred centrifugal force to play a role, described centrifugal force is occurred with higher degree in quick rotation.Thus improve further The stability of rotor.
In the decision design mode supplemented, rotor is axially limited, by described by diskware on end respectively Whole assembly can extraly be fixed by diskware in the axial direction.
Thus provide the motor of the electric compressor for internal combustion engine, by strengthening stator and absorbing shape on the stator teeth The impulsive force becoming, although still obtain in the case that described motor is relatively low in the base frequency of electricity in terms of its acoustic properties substantially Improve.Additionally, motor also has simple electronic unit and easier drillability rate.
Brief description
Embodiment according to the motor for the electric compressor of internal combustion engine for the present invention shown in the drawings and with Under be described by.In the accompanying drawings:
Fig. 1 illustrates the partial cross sectional side view of the electric compressor of the motor with the with good grounds present invention;
Fig. 2 is shown in cutaway fashion the cross section of the motor in Fig. 1 according to the present invention.
Specific embodiment
Compressor shown in Fig. 1 is made up of spiral case 10, by described compressor by being rotatably disposed within spiral case 10 Impeller compressed air in known manner.
For this reason, impeller is fixed on the end of the drive shaft 12 of the motor 14 according to the present invention.Drive shaft bearing is two In the motor field frame 16 of part formula.Clutch shaft bearing 18 is arranged in the bearing on the bottom 22 of the first motor field frame part 24 of can-like In receiving portion 20.The second bearing 25 being arranged in the opposite end of motor 14 is arranged in second bearing receiving portion 26, institute State second bearing receiving portion to be formed on the bottom 27 of the second motor field frame part 28, described second motor field frame part is in centre It is advanced in the case of being connected with one or more seals 30 in first motor field frame part 24, and right with motor 14 Electronics cavity 32 is had on the side put, the control board of motor 14 is arranged in described electronics cavity.In order to build Vertical electrical connection, the winding terminal 34 of the winding 35 of the stator 36 of motor 14 protrudes into the second motor field frame by corresponding perforate In the bottom 27 of part 28.Second motor field frame part 28 also has helically around circumferentially extending recessed in its radial outer wall 40 Fall into 42, described depression is closed by the radial outer wall 44 of the first motor field frame part 24, thus constituting the spiral shell around stator 36 Line passage, cooling agent can flow through described screw channel thus discharge heat from motor field frame part.
Stator 36 is fixed in the second motor field frame part 28 by press-fit, and is designed as lamination by inner radial Second stator elements of 48 forms in non-return ring of the first stator elements 46 of group and encirclement the first stator elements 46 form, as shown in Figure 2.
First stator elements 46 here has three stator tooths being uniformly distributed circumferentially 50, and the tooth root 52 of described stator tooth holds Carry the winding 35 of motor 14 and be connected with each other in radial inner region.The crown of radially outer is connected with tooth root 52 54, described crown circumferentially has the size bigger than the part being wound of tooth root 52.But also retain between crown 54 There is the groove perforate 56 of radially outer.Make it possible to directly wind stator tooth 50 from outside by described groove perforate 56.
After to stator tooth 50 winding, non-return ring 48 is pulled in the stator elements 46 of inside.Non-return ring 48 is had at this Have and be shaped such that this non-return ring can shape-ordinatedly abut on crown 54 and close the groove perforate 56 of outside.By this Embodiment, stator has a high rigidity, and avoids stator tooth 50 and shaken due to the impulsive force applying on the stator teeth Dynamic, and vibrate and undesirable noise then can be led to send.Non-return ring 48 press-in the second motor field frame part 28 after radially Abut on outer wall 40.
In the inner radial of stator 36, the rotor 58 of motor 14 is fixed in drive shaft 12.Rotor 58 bipolar system ground is real Apply and have in this embodiment the Semicircular magnetic element of total of six 60, wherein each two magnetic element opposed to each other It is bonded in drive shaft 12 and constitutes the magnet ring 62 of diametrical magnetization, and three such magnet rings 62 cloth successively vertically Put in drive shaft 12.
An annular disk 64 is had to be resisted against on the magnet ring 62 of outside vertically respectively, described annular disk is vertically from both sides Limit rotor 58.Radially arrange the case 66 being made up of glass fibre rotating around magnet ring 62, described case intercepts and is based on The magnet ring 60 that during motor 14 high-speed cruising, the produced violent acceleration acting on magnet is led to is from drive shaft 12 get loose, and thus stop getting loose of bonding.Case 66 is also radially around two diskwares 64.
Described motor has good acoustic properties, because by the stator two-piece type with enclosed slot and form fit Construction and the rigidity of the stator thus leading to avoid the vibration of stator tooth.However still can be from foreign volume around fixed Son, thus achieves automatable winding in production in enormous quantities.By the construction of the bipolar system with three stator tooths, can , in the case of low electricity frequency with the simple control electronic unit being achieved in, correspondingly to realize less rotor, its tool Be conducive to the less the moment of inertia starting rapidly.
It should be clear that can also realize multiple compared with illustrated embodiment in the protection domain of independent claims Different constructional variant's modes.

Claims (9)

1. the motor (14) of a kind of electric compressor for internal combustion engine, it carries
Rotor (58),
Drive shaft (12), rotor (58) is at least antitorque to be fixedly placed in described drive shaft,
Stator (36) radially around rotor (58), described stator is fixed in motor field frame (16) and has three stators Tooth (50), is disposed with winding (35) on the tooth root (52) of described stator tooth, and described winding is directed radially through crown (54) and is limited Fixed, described crown circumferentially has the size bigger than tooth root (52),
It is characterized in that, stator (36) has the stator elements (46) of inner radial, is configured with stator tooth in described stator elements (50), described stator tooth is connected with each other in radial inner region and can be wound from outside, wherein, crown (54) it Between the groove perforate (56) of radially outer pass through to constitute the non-return ring (48) of the second stator elements and be closed, described non-return ring is radially On around three stator tooths (50).
2. the motor of the electric compressor for internal combustion engine according to claim 1 is it is characterised in that non-return ring (48) shape is joined It is arranged in the stator elements (46) of inner radial with closing.
3. the motor of the electric compressor for internal combustion engine according to claim 1 and 2 is it is characterised in that rotor (58) It is designed as bipolar system.
4. the electric compressor for internal combustion engine according to any one of the claims motor it is characterised in that Rotor has the magnetic element (60) being fixed in drive shaft (12), and described magnetic element constitutes diametrically opposite magnetized magnet ring (62).
5. the motor of the electric compressor for internal combustion engine according to claim 4 is it is characterised in that magnetic element (60) It is bonded in drive shaft (12).
6. the motor of the electric compressor for internal combustion engine according to claim 4 or 5 is it is characterised in that rotor (58) There are multiple magnetic elements (60) being sequentially arranged vertically.
7. the electric compressor for internal combustion engine according to any one of claim 4 to 6 motor it is characterised in that Magnet ring (62) passes through Semicircular magnetic element (60) and constitutes.
8. the electric compressor for internal combustion engine according to any one of claim 4 to 7 motor it is characterised in that The packaging material being made up of glass fibre or case (66) diametrically surround magnet ring (62).
9. the electric compressor for internal combustion engine according to any one of the claims motor it is characterised in that Rotor (58) is axially limited by diskware (64) on end respectively.
CN201610657505.4A 2015-08-11 2016-08-11 Electromotor for electrical compressor of internal combustion engine Pending CN106451832A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015113188.9 2015-08-11
DE102015113188.9A DE102015113188B4 (en) 2015-08-11 2015-08-11 Electric motor for an electric compressor of an internal combustion engine

Publications (1)

Publication Number Publication Date
CN106451832A true CN106451832A (en) 2017-02-22

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DE (1) DE102015113188B4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098984A (en) * 2017-06-20 2018-12-28 戴森技术有限公司 Compressor

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US3339097A (en) * 1965-08-10 1967-08-29 Eastman Mfg Co Inc Bobbin and pole construction
US5045735A (en) * 1988-12-23 1991-09-03 N.V. Airpax S.A. Device comprising an actuator, method for use in the device, and system for controlling a gas or liquid flow, comprising the device
JPH06245414A (en) * 1993-02-22 1994-09-02 Mitsubishi Electric Corp Stator core for motor and manufacture thereof
CN1196600A (en) * 1997-04-11 1998-10-21 株式会社东芝 Compressor
JP2004112919A (en) * 2002-09-19 2004-04-08 Asmo Co Ltd Stator for rotary electric machine and manufacturing method thereof
CN1571242A (en) * 2003-04-25 2005-01-26 日本电产株式会社 Motor
CN101043153A (en) * 2006-03-24 2007-09-26 日立空调·家用电器株式会社 Electric motor
US20090174267A1 (en) * 2007-12-20 2009-07-09 Thomas Bischof Electromotor or generator
CN103107616A (en) * 2011-11-11 2013-05-15 财团法人工业技术研究院 Sectional type magnetic conduction structure applied to rotating motor device
CN103370855A (en) * 2011-02-10 2013-10-23 松下电器产业株式会社 Motor rotor, and fan driving motor provided therewith
CN204316203U (en) * 2015-01-21 2015-05-06 广东美芝制冷设备有限公司 Stator core and the compressor with it

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IL52902A0 (en) 1976-10-05 1977-11-30 Gen Electric Electronically commutated motor and method of making same
JP2008219965A (en) 2007-02-28 2008-09-18 Mitsubishi Heavy Ind Ltd Rotary machine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339097A (en) * 1965-08-10 1967-08-29 Eastman Mfg Co Inc Bobbin and pole construction
US5045735A (en) * 1988-12-23 1991-09-03 N.V. Airpax S.A. Device comprising an actuator, method for use in the device, and system for controlling a gas or liquid flow, comprising the device
JPH06245414A (en) * 1993-02-22 1994-09-02 Mitsubishi Electric Corp Stator core for motor and manufacture thereof
CN1196600A (en) * 1997-04-11 1998-10-21 株式会社东芝 Compressor
JP2004112919A (en) * 2002-09-19 2004-04-08 Asmo Co Ltd Stator for rotary electric machine and manufacturing method thereof
CN1571242A (en) * 2003-04-25 2005-01-26 日本电产株式会社 Motor
CN101043153A (en) * 2006-03-24 2007-09-26 日立空调·家用电器株式会社 Electric motor
US20090174267A1 (en) * 2007-12-20 2009-07-09 Thomas Bischof Electromotor or generator
CN103370855A (en) * 2011-02-10 2013-10-23 松下电器产业株式会社 Motor rotor, and fan driving motor provided therewith
CN103107616A (en) * 2011-11-11 2013-05-15 财团法人工业技术研究院 Sectional type magnetic conduction structure applied to rotating motor device
CN204316203U (en) * 2015-01-21 2015-05-06 广东美芝制冷设备有限公司 Stator core and the compressor with it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098984A (en) * 2017-06-20 2018-12-28 戴森技术有限公司 Compressor
US11549513B2 (en) 2017-06-20 2023-01-10 Dyson Technology Limited Compressor

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DE102015113188A1 (en) 2017-02-16
DE102015113188B4 (en) 2023-05-04

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