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WO2017149020A1 - Moteur électrique pour véhicule automobile - Google Patents

Moteur électrique pour véhicule automobile Download PDF

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Publication number
WO2017149020A1
WO2017149020A1 PCT/EP2017/054785 EP2017054785W WO2017149020A1 WO 2017149020 A1 WO2017149020 A1 WO 2017149020A1 EP 2017054785 W EP2017054785 W EP 2017054785W WO 2017149020 A1 WO2017149020 A1 WO 2017149020A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
housing
circuit board
electrical
electrically conductive
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/EP2017/054785
Other languages
German (de)
English (en)
Inventor
Steffen Hübner
Bernd Mack
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.)
Mahle International GmbH
Original Assignee
Mahle International 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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of WO2017149020A1 publication Critical patent/WO2017149020A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • 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
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

Definitions

  • the invention relates to an electric motor for a motor vehicle and a motor vehicle with such an electric motor.
  • Electric motors are used in motor vehicles in many forms application.
  • an electric motor for driving a fan of an air conditioning system present in the motor vehicle may be mentioned as an example.
  • pumping devices - such as an oil or fuel pump - for conveying a fluid is known.
  • Conventional electric motors include a stator and a rotor rotatable relative to the stator.
  • the rotor In DC motors, the rotor is electrically energized and generates in this way a magnetic field, which generates by interaction with the magnetic field of the stator, a torque that drives the rotor.
  • the basic idea of the invention is accordingly to arrange a printed circuit board with electrical components for suppressing the electric motor directly on the housing flange or another housing section of the housing of an electric motor.
  • said electrical components are electrically connected via an electrically conductive layer of the printed circuit board to the electrical terminals of the electric motor.
  • the printed circuit board is connected by means of an electrically conductive, preferably by means of an electrically conductive and cohesive, connection with the at least one electrical connection element of the electric motor.
  • a particularly preferred cohesive connection in the present case is a welded connection, in particular a laser welding connection, ie a welded joint produced by laser welding.
  • a low-impedance electrical connection between the circuit board and the electrical connection element can be achieved, which significantly increases the interference suppression effect of the above-mentioned electrical components.
  • electrical conduction paths can also be kept short and a high component density can be achieved.
  • An inventive electric motor in particular for a motor vehicle, comprises a housing in which a stator relative to the housing and, rotatably adjustable relative to the stator, a rotor are arranged.
  • the housing has a housing flange.
  • the housing flange may be formed by a front-side housing wall of the housing.
  • At least one electrical connection element for supplying the electric motor with electrical energy is provided on the housing, preferably on the housing flange.
  • a circuit board is arranged, which has an electrically insulating substrate.
  • electrically insulating substrate electrical components are arranged, which serve to suppress interference of the electric motor.
  • These electrical components are electrically connected to the at least one electrical connection element via an electrically conductive layer of the printed circuit board.
  • Said electrical components for suppressing the electric motor may in particular comprise ohmic resistors and capacitors. These can act as an electrical low pass with suitable electrical wiring and thus filter out high-frequency interference signals.
  • the printed circuit board preferably the electrically conductive layer or at least one electrical component, by means of an electrically conductive, and preferably cohesive, connection to the at least one electrical connection element is connected. This allows an advantageous, low-impedance electrical connection of the electrical components with the connection elements of The electric motor.
  • the electrically conductive connection is a solder joint.
  • the printed circuit board comprises a flexible and / or elastic material or consists of such a flexible and / or elastic material.
  • the circuit board may be formed as a sheet-like board.
  • the formation of the printed circuit board as a sheet-like circuit board means that no thermally induced expansion effects in the printed circuit board can cause the electrical connection or cohesive connection with the at least one connection element - such as cracking or mechanical breakage - damaged or even destroyed.
  • Another advantage of the formation of the printed circuit board as a sheet-like circuit board is that the requirements in terms of tolerated manufacturing tolerances in the manufacture of the board over conventional printed circuit boards are reduced from a rigid printed circuit board material.
  • the electrical series inductance is reduced, resulting in an advantageous, low-impedance connection.
  • the printed circuit board is arranged directly on the housing flange, in particular without the formation of a gap.
  • the space required for the printed circuit board axial space can be kept low, ie such a trained electric motor is axially very compact.
  • the electrically conductive layer is electrically connected to all connecting elements present on the housing or on the housing flange
  • the electrically conductive layer to form an electrical ground connection, preferably cohesively, electrically connected to the housing, preferably with the housing flange.
  • the electrical components if necessary, can be electrically grounded with little electrical wiring overhead.
  • an electrical circuit board connection element assigned to the at least one electrical connection element is provided on the circuit board, which is electrically conductively connected to the electrical connection element of the housing, preferably the housing flange. In this way, to be realized between the circuit board and the electrical connection elements of the electric motor electrical conduction paths can be kept small.
  • the electrically conductive layer of the printed circuit board comprises copper or consists of copper.
  • the use of such an electrically conductive layer made of copper or copper leads to considerable cost advantages in the production of the printed circuit board, since the provision of separate electrical connections, such as cables or the like, can be omitted in large part or even completely.
  • the electrically conductive connection is a welded joint, in particular a laser welding joint, or a solder joint.
  • a welded joint can be realized by means of a conventional welding or soldering device with little technical effort and thus cost.
  • the housing flange is formed as a housing plate, on the outside of the circuit board is arranged.
  • the design as a housing plate allows a realization of the electric motor with a particularly small space requirement.
  • the particularly preferred special case of an angular housing plate allows an adaptation of the housing flange to a variety of space geometries, as these typically occur in a motor vehicle.
  • the electric motor can be designed as a DC motor (DC motor).
  • the at least one electrical connection element is designed as a pin or as a pin, which protrudes from the housing flange. This allows quasi an electrical and mechanical implementation of the connection element through the circuit board, so that their electrical components for interference suppression of the electric motor, the electrical connection of the electric motor to an electrical system or to an electrical power supply unit or only to a limited extent.
  • the electrical components comprise at least one ohmic resistance and at least one capacitor. This allows a simple and thus cost-effective way to realize an electrical low-pass filter to achieve the desired interference suppression effect.
  • the invention further relates to a motor vehicle with at least one electric motor presented above.
  • the advantages explained above with reference to the electric motor are therefore also transferred to the motor vehicle according to the invention.
  • Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
  • Fig. 4 shows a second example of the possible electrical wiring of electrical components on the circuit board.
  • 1 shows an example of an electric motor 1 according to the invention for a motor vehicle in a perspective view.
  • the electric motor 1 comprises a housing 2 in which a stationary relative to the housing 2, a stator and a rotatable adjustable relative to the stator, a rotor is arranged (rotor and stator of the electric motor 1 are not visible in the outside view of Figure 1).
  • the rotor is rotatably connected to a outwardly out of the housing 2 out drive shaft 15.
  • the electric motor 1 is preferably designed as a DC motor (DC motor).
  • the housing 2 has a housing flange 3 with two apertures 9 for fastening the housing 2 to a suitable component of a motor vehicle.
  • the housing flange 3 may be formed by a front-side housing wall 23 of the housing 2.
  • FIG 2. shows an electric motor 1 according to the invention in the region of the housing flange 3 in a schematic representation. It can be seen that two electrical connection elements 4 for supplying the electric motor with electrical energy are present on the housing flange 3.
  • the housing flange 3 is formed as a housing plate 10, on the outside thereof
  • a part of the housing plate 10 - and thus also of the housing flange 3 - can by a front-side housing wall 23 of the housing
  • the printed circuit board 5 comprises an electrically insulating substrate 12, on which electrical components 6 are arranged, in particular in the form of ohmic resistors and capacitors.
  • electrically insulating substrate 12 is in particular an electrically insulating paint layer into consideration.
  • These components 6 are used with suitable electrical circuitry for suppression of the electric motor 1 when it is put into operation.
  • Said electrical components 6 are electrically connected to the electrical connection elements 4 of the housing flange 3 via an electrically conductive layer 7 of the printed circuit board 5.
  • the electrically conductive layer 7 consists of copper as an electrically conductive material.
  • an electrical circuit board connection element 8 assigned to the respective electrical connection element 4 is provided on the flexible printed circuit board 5.
  • the electrical connection elements 4 can be designed as pins or as pins which protrude from the housing flange 3.
  • the printed circuit board connection elements 8 are joined to the electrical connection elements 4 of the housing flange 3 by means of an electrically conductive connection (this is indicated only schematically in FIG. 2 and designated by the reference numeral 16).
  • Said electrically conductive connection 16 between the electrical connection elements 4 and the printed circuit board connection elements 8 may be a welded connection, in particular a laser welding connection, or a solder connection or another electrically conductive cohesive connection.
  • the electrical components 6 are used for electrical suppression of the electric motor 1 and cause an improvement in the electromagnetic (EMC) compatibility of the electric motor 1, in particular if this is installed in a motor vehicle and used there as an electric drive unit.
  • EMC electromagnetic
  • the printed circuit board 5 can be deformed by bending without causing breakage of the printed circuit board 5.
  • the printed circuit board 5 can be designed in particular as a foil-like printed circuit board and for this purpose a flexible and / or elastic plate - or Plati- NEN material or even from a flexible or elastic Plattenmp. Board material consist.
  • the printed circuit board 5 as a sheet-like board has the advantage that no thermally induced expansion effects in the circuit board 5 cause the electrical connection or integral connection with the electrical connection elements 4 - as by cracking or mechanical breakage - damaged or even gets destroyed.
  • Another advantage in the formation of the circuit board 5 as a sheet-like circuit board is that the requirements concerning manufacturing tolerances in the manufacture of the board compared to conventional, mechanically rigid circuit boards is reduced.
  • the electrical series inductance is reduced in a film-like board over conventional printed circuit boards, which allows an advantageous, low-impedance connection.
  • the circuit board 5 but also stiff, so non-flexible, be formed.
  • the design as a flexible printed circuit board 5 makes it possible to adapt the printed circuit board 5 to the surface geometry of the housing plate 10 or the housing flange 3.
  • the flexible printed circuit board 5 can be deformed by bending. This proves to be particularly advantageous if the housing plate 10 and the housing flange 3 is formed angularly, that has at least one plate or flange portion which protrudes angularly from another plate or flange portion.
  • the printed circuit board 5 is applied and arranged directly on the housing flange 3, ie without the formation of a gap.
  • the electrically conductive layer 7 is preferably electrically connected to all the electrical connection elements 4 present on the housing 2 or on the housing flange 3, in other words in the example scenario with the two electrical connection elements 4. the.
  • the electrically conductive layer 7 may be electrically connected to the housing flange 3 of the housing 2 to form an electrical ground connection, cohesively.
  • FIGS. 3 and 4 each show an example of a possible electrical wiring of the electrical components 6 on the printed circuit board 5. It can be seen that in addition to ohmic resistors 17, capacitors 18 in the form of capacitors 21 and inductors 19 between the electrical connections 4 and the motor housing 20 with stator and rotor can be wired together.
  • the wiring examples of FIGS. 3 and 4 both follow the operating principle of an electrical low-pass filter and suppress interference signals generated by the electric motor during operation partially or even completely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur électrique (1), destiné en particulier à un véhicule automobile, comprenant un boîtier (2) dans lequel un stator est disposé de façon fixe par rapport au boîtier (2) et un rotor est disposé de façon mobile en rotation par rapport au stator. Le boîtier (2) comporte une bride (3). Au moins un élément de connexion électrique (4), de préférence deux éléments de connexion (4), destinés à alimenter le moteur électrique (1) en énergie électrique, sont prévus au niveau du boîtier, de préférence de la bride (3). Une carte de circuit imprimé (5) est disposée au niveau du boîtier (2), de préférence de la bride (3), laquelle carte comprend un substrat électriquement isolant (12) sur lequel sont disposés des composants électriques (6) destinés à déparasiter le moteur électrique (1). Les composants électriques (6) sont reliés électriquement à l'au moins un élément de connexion électrique (4) par une couche électriquement conductrice (7) de la carte de circuit imprimé (5). La carte de circuit imprimé (5), de préférence la couche électriquement conductrice (7) ou au moins un composant électrique (6), est relié à l'au moins un élément de connexion électrique (4) au moyen d'une connexion électriquement conductrice (16), de préférence une liaison de matière.
PCT/EP2017/054785 2016-03-02 2017-03-01 Moteur électrique pour véhicule automobile Ceased WO2017149020A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016203391.3 2016-03-02
DE102016203391.3A DE102016203391A1 (de) 2016-03-02 2016-03-02 Elektromotor für ein Kraftfahrzeug

Publications (1)

Publication Number Publication Date
WO2017149020A1 true WO2017149020A1 (fr) 2017-09-08

Family

ID=58213070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/054785 Ceased WO2017149020A1 (fr) 2016-03-02 2017-03-01 Moteur électrique pour véhicule automobile

Country Status (2)

Country Link
DE (1) DE102016203391A1 (fr)
WO (1) WO2017149020A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3105637B1 (fr) * 2019-12-20 2022-02-11 Thales Sa Filtrage d'une charge dans une architecture electrique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042072A1 (de) * 2010-10-06 2012-04-12 Robert Bosch Gmbh Gleichstromelektromaschine
WO2015082188A1 (fr) * 2013-12-06 2015-06-11 Conti Temic Microelectronic Gmbh Dispositif de liaison de lignes électriques à des contacts électriques
DE112014002168T5 (de) * 2013-04-26 2016-01-07 Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. Elektrischer Kompressor mit integriertem Wechselrichter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10355076B4 (de) * 2003-11-24 2016-03-24 Minebea Co., Ltd. Elektromotor mit Sensor zur Erfassung der Rotorlage
DE102006044304A1 (de) * 2006-09-16 2008-03-27 Pierburg Gmbh Anordnung einer Entstörschaltung für einen Gleichstrommotor
DE102009010424A1 (de) * 2009-02-26 2010-09-02 Pierburg Gmbh Kfz-Aggregat-Elektromotor
DE102012104259B4 (de) * 2012-05-16 2020-09-03 Pierburg Gmbh Gleichstrommotor zum Antrieb von Aggregaten eines Kraftfahrzeugs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042072A1 (de) * 2010-10-06 2012-04-12 Robert Bosch Gmbh Gleichstromelektromaschine
DE112014002168T5 (de) * 2013-04-26 2016-01-07 Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. Elektrischer Kompressor mit integriertem Wechselrichter
WO2015082188A1 (fr) * 2013-12-06 2015-06-11 Conti Temic Microelectronic Gmbh Dispositif de liaison de lignes électriques à des contacts électriques

Also Published As

Publication number Publication date
DE102016203391A1 (de) 2017-09-07

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