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WO2011072915A1 - Moteur électrique pourvu d'un filtre antiparasite - Google Patents

Moteur électrique pourvu d'un filtre antiparasite Download PDF

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Publication number
WO2011072915A1
WO2011072915A1 PCT/EP2010/065965 EP2010065965W WO2011072915A1 WO 2011072915 A1 WO2011072915 A1 WO 2011072915A1 EP 2010065965 W EP2010065965 W EP 2010065965W WO 2011072915 A1 WO2011072915 A1 WO 2011072915A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
housing
capacitors
capacitor
feedthrough
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.)
Ceased
Application number
PCT/EP2010/065965
Other languages
German (de)
English (en)
Inventor
Stephen Nicholls
Frank Kopf
Roland Eidher
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP10770533A priority Critical patent/EP2513928A1/fr
Priority to CN2010800572994A priority patent/CN102667981A/zh
Priority to JP2012543544A priority patent/JP2013514750A/ja
Publication of WO2011072915A1 publication Critical patent/WO2011072915A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/35—Feed-through capacitors or anti-noise capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/026—Suppressors associated with brushes, brush holders or their supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
    • H02K11/028—Suppressors associated with the rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • electric motors tend to emit high-frequency noise during operation, which propagate both wirelessly and along electrical feeds to the electric motor and may affect a function of other devices.
  • a fan motor in operation emit high-frequency interference, which are audible via a loudspeaker of a radio of the motor vehicle or visible on a display of a video device of the motor vehicle.
  • Each of the capacitors may filter noise occurring on the electrical lead of the electric motor at a predetermined frequency in a predetermined bandwidth.
  • the limited filter effects of the individual capacitors can be combined to form a broadband filter effect of the entire feedthrough capacitor.
  • the filter effects of the individual capacitors can be dimensioned as a function of known spectrums of interference signals of the electric motor, for example, in a fan motor with a plurality of selectable, fixed speeds set frequencies that correspond to these speeds or their harmonics.
  • a noise filter is provided which can be handled for use on an electric motor in a motor vehicle.
  • the implementation may be such that wirelessly propagating interfering signals are retained in the housing so that no interference signals pass the capacitors.
  • the implementation can be carried out for example tubular.
  • the housing of the electric motor can have in the region of the leadthrough an electrically connected to the housing holding element, in which the capacitors are accommodated electrically conductive. In this way, it is possible to use capacitors which are not designed as feedthrough capacitors and are therefore inexpensive.
  • the holding element may comprise a tube or a spring and preferably be arranged at an axial end of the electric motor.
  • Figure 1 is a schematic representation of an electric motor
  • FIG. 3 shows attenuation curves of the capacitors from FIG. 2;
  • FIG. 6 shows embodiments of a mechanical construction of feedthrough capacitors at bushings of the electric motor of FIG.
  • FIG. 1 shows a schematic representation of an electric motor 110 in a motor vehicle 105, the electric motor 100 comprising a housing 120, an electrical supply line 130 and a feedthrough capacitor 140 accommodated in a feedthrough 150 through the housing 120.
  • the electric motor 1 10 is a DC motor with brushes. A first connection of the electric motor
  • a second terminal of the electric motor 1 10 is connected within the housing 120 by means of the electrical lead 130 to the feedthrough capacitor 140.
  • the electrical supply line 130 from the feedthrough capacitor 140 continues further.
  • multi-pole and / or brushless electric motors 110 may also be used. It is also not necessary that one of the brushes or terminals of the electric motor 1 10 is connected to the housing 120. In other embodiments, multiple or all terminals of the electric motor 1 10 are guided with or without dedicated feedthrough capacitors 140 on an outer side of the housing 120.
  • the housing 120 is connected to a vehicle ground of the motor vehicle 105 and / or an electrical negative terminal of a supply voltage.
  • the feedthrough 150 includes a recess through the housing 120, and preferably means for connecting the feedthrough capacitor 140 to the housing 120 in a highly frequency-tight manner, for example an electrically conductive tube.
  • the electrical supply line 130 runs.
  • the illustrated electrical circuit diagram of the feedthrough capacitor 140 makes it clear that power-relevant currents, which are transmitted by means of the electrical supply line 130, the feedthrough capacitor 140 along the continuous electrical Zulei- device 130 can pass unhindered.
  • the capacitances of the capacitors 210 to 230 respectively interpose between portions of the electrical lead 130 and counter electrodes electrically connected to the capacitor housing 240.
  • FIG 3 shows a diagram of damping curves of the capacitors 210 to 230 of Figure 2.
  • a frequency is applied, in the vertical direction an attenuation, wherein a high attenuation value of a strong attenuation or suppression of a voltage corresponding frequency corresponds.
  • Damping curves 310, 320 and 330 are associated with the capacitors 210, 220 and 230 of FIG.
  • Each of the attenuation curves 310 to 330 is relatively narrow-band, which means that each of the capacitors 210 to 230 can only attenuate signals within a relatively narrow frequency range.
  • the relative positions of the damping curves 310 to 330 in the horizontal direction can be influenced.
  • the capacitors 210 to 230 are dimensioned such that the attenuation curves 310 to 330 in their sum result in a single, relatively broadband attenuation curve that applies to the entire feedthrough capacitor 140.
  • Usual capacities for the capacitors 210 to 230 are in the range of 5 to 1200 nF.
  • the capacitors 210 to 230 and the electrical supply line 130 are shown separately from a tube 410 which receives the capacitors 210 to 230, as indicated by the arrow.
  • a tube 410 which receives the capacitors 210 to 230
  • outer surfaces of the capacitors 210 to 230 are conductively connected to the tube 410. This results in a total of the finished feedthrough capacitor 140 of Figures 1 and 2.
  • another holder can be used, for example, a flat sheet metal spring, a coil spring or a hollow braid of electrical conductors.
  • FIG. 5 shows a further embodiment of a mechanical construction of the feedthrough capacitor 140 from FIGS. 1 and 2.
  • the capacitors 210 to 230 are arranged in the capacitor housing 240.
  • the capacitances of the capacitors 210 to 230 respectively between the electrical supply line 230 and the capacitor housing 240.
  • It can be used capacitors of any design and design, such as film capacitors, metal paper capacitors, plastic capacitors , Electrolytic capacitors or others.
  • an axial configuration of the individual capacitors 210 to 230 does not have to be complied with and the capacitors 210 to 230 can be arranged in an arbitrary manner within the capacitor housing 240.
  • a collar 510 may be provided on the capacitor housing 240 to limit axial movement of the feedthrough capacitor 140 in a recess, such as the feedthrough 150 of FIG.
  • Other fasteners may be provided on the capacitor housing 240 of the feedthrough capacitor 140 of FIG. 5, such as a flange, a clamp, a bore, a crimp rim, a solder rim, a clip receptacle, a rivet head, and others.
  • FIG. 6 shows embodiments of a mechanical construction of feedthrough capacitors 140 at bushings 150 of the electric motor 105 of FIG. 1.
  • An axial section of the housing 120 of the electric motor 110 of FIG. 1 extends in the vertical direction.
  • a first feedthrough capacitor 140 is inserted in the axial direction according to the design shown in Figure 5.
  • the feedthrough 150 here consists of a recess in the housing 120 matching the capacitor housing 240.
  • the first feedthrough capacitor 140 may be connected to the housing 120 by any known technique. In this case, care is taken to ensure good electrical contact between the feedthrough capacitor 140 and the housing 120;
  • the connection preferably leaves no passages for electromagnetic radiation.
  • a preferred type of connection includes soldering.
  • a second feedthrough capacitor 140 extends parallel to the axial extent of the housing 120 on the outside thereof.
  • the feedthrough 150 here comprises, in addition to a suitable cutout, also the tube 410 of the leadthrough capacitor 140 shown in FIG. 4, wherein the tube 410 has a bend at its lower end at an angle of approximately 90 °, at the end of which the tube 410 with the housing 420 is connected, for example by soldering or welding.
  • the second feedthrough capacitor 140 may also extend on an inner side of the housing 120. The bending of the tube 410 is not absolutely necessary and serves mainly a saving of space.
  • a third feedthrough capacitor 140 extends in a radial direction relative to the housing 120.
  • the feedthrough corresponding thereto 150 comprises a recess in the housing 120, a clamping spring 610.
  • Substantially cylindrical capacitors 210, 220 are received by the clamping spring 610, which is connected in any manner with the housing 120, for example by soldering or welding.
  • the invention makes it possible to carry out a simple and miniaturizable suppression of an electric motor in a motor vehicle, with a given spectrum of interference frequencies of the electric motor 1 10 can be targeted by suitable dimensioning of a plurality of capacitors 210 to 230.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Motor Or Generator Frames (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

L'invention concerne un moteur électrique (110) destiné à un véhicule à moteur et comprenant une ligne d'alimentation électrique (130) ainsi qu'un condensateur (140) logé dans un passage d'un carter dudit moteur électrique et relié à ladite ligne d'alimentation électrique (130) et audit carter (120), un autre condensateur étant logé dans ledit passage et les condensateurs étant reliés entre eux électriquement en parallèle.
PCT/EP2010/065965 2009-12-16 2010-10-22 Moteur électrique pourvu d'un filtre antiparasite Ceased WO2011072915A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10770533A EP2513928A1 (fr) 2009-12-16 2010-10-22 Moteur électrique pourvu d'un filtre antiparasite
CN2010800572994A CN102667981A (zh) 2009-12-16 2010-10-22 带有抑噪滤波器的电动机
JP2012543544A JP2013514750A (ja) 2009-12-16 2010-10-22 ノイズ除去フィルタを備える電気モータ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054717.7 2009-12-16
DE102009054717A DE102009054717A1 (de) 2009-12-16 2009-12-16 Elektromotor mit Entstörfilter

Publications (1)

Publication Number Publication Date
WO2011072915A1 true WO2011072915A1 (fr) 2011-06-23

Family

ID=43383491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/065965 Ceased WO2011072915A1 (fr) 2009-12-16 2010-10-22 Moteur électrique pourvu d'un filtre antiparasite

Country Status (5)

Country Link
EP (1) EP2513928A1 (fr)
JP (1) JP2013514750A (fr)
CN (1) CN102667981A (fr)
DE (1) DE102009054717A1 (fr)
WO (1) WO2011072915A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6658775B2 (ja) * 2018-01-29 2020-03-04 株式会社デンソー ブラシレスモータ
DE102020216154A1 (de) 2020-12-17 2022-06-23 Robert Bosch Gesellschaft mit beschränkter Haftung Elektrischer Entstörungsfilter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09275034A (ja) * 1996-04-05 1997-10-21 Nec Corp 貫通コンデンサ
DE19904302A1 (de) * 1999-01-28 2000-08-24 Bosch Gmbh Robert Entstörglied für einen Elektromotor
WO2006027290A1 (fr) * 2004-09-06 2006-03-16 Robert Bosch Gmbh Moteur a courant continu avec dispositif d'antiparasitage
WO2007068516A1 (fr) * 2005-12-12 2007-06-21 Robert Bosch Gmbh Moteur à courant continu avec dispositif d’antiparasitage
DE102007018462A1 (de) * 2007-04-19 2008-10-30 Robert Bosch Gmbh Gleichstrommotor mit einem Durchführungskondensator
DE102008001570A1 (de) * 2008-05-06 2009-11-12 Robert Bosch Gmbh Elektrischer Starter für eine Brennkraftmaschine eines Kraftfahrzeugs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7755232B2 (en) * 2004-09-06 2010-07-13 Robert Bosch Gmbh DC motor with suppressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09275034A (ja) * 1996-04-05 1997-10-21 Nec Corp 貫通コンデンサ
DE19904302A1 (de) * 1999-01-28 2000-08-24 Bosch Gmbh Robert Entstörglied für einen Elektromotor
WO2006027290A1 (fr) * 2004-09-06 2006-03-16 Robert Bosch Gmbh Moteur a courant continu avec dispositif d'antiparasitage
WO2007068516A1 (fr) * 2005-12-12 2007-06-21 Robert Bosch Gmbh Moteur à courant continu avec dispositif d’antiparasitage
DE102007018462A1 (de) * 2007-04-19 2008-10-30 Robert Bosch Gmbh Gleichstrommotor mit einem Durchführungskondensator
DE102008001570A1 (de) * 2008-05-06 2009-11-12 Robert Bosch Gmbh Elektrischer Starter für eine Brennkraftmaschine eines Kraftfahrzeugs

Also Published As

Publication number Publication date
EP2513928A1 (fr) 2012-10-24
CN102667981A (zh) 2012-09-12
JP2013514750A (ja) 2013-04-25
DE102009054717A1 (de) 2011-06-22

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