WO2021013548A1 - Machine électrique, notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur - Google Patents

Machine électrique, notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur Download PDF

Info

Publication number
WO2021013548A1
WO2021013548A1 PCT/EP2020/069254 EP2020069254W WO2021013548A1 WO 2021013548 A1 WO2021013548 A1 WO 2021013548A1 EP 2020069254 W EP2020069254 W EP 2020069254W WO 2021013548 A1 WO2021013548 A1 WO 2021013548A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact element
electrical machine
motor housing
contact
machine according
Prior art date
Application number
PCT/EP2020/069254
Other languages
German (de)
English (en)
Inventor
Jan Matussik
Lars-Dirk Anding
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 EP20739332.3A priority Critical patent/EP4005070A1/fr
Priority to CN202080053062.2A priority patent/CN114128107B/zh
Publication of WO2021013548A1 publication Critical patent/WO2021013548A1/fr

Links

Classifications

    • 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
    • H02K11/40—Structural association with grounding devices
    • 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
    • H02K5/08—Insulating casings
    • 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
    • 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

  • Electric machine especially for adjusting moving parts in one
  • the invention relates to an electrical machine, in particular for adjusting moving parts in a motor vehicle.
  • Such an electrical machine is designed, for example, in the form of a window lift drive, a sliding roof drive or a seat adjustment drive or as a component of a comfort drive in a motor vehicle.
  • an electrical machine in which a ground contact of an interference suppression element to a motor housing, which is designed in the form of a pole pot housing, takes place in that a wire coming from the interference suppression element against a Inner wall of the motor housing is pressed.
  • the wire bracket is preassembled together with the wire of the interference suppression element in the area of a component made of plastic, for example a connector module.
  • the contact pin is under elastic deformation during assembly between the Plug module and the motor housing can be placed against the motor housing.
  • Plug module takes place and thus represents a separate work step.
  • a corresponding structural design for example a press fit, a snap-in connection or stops, ensure that the contact pin or the contact element is in the
  • Connector module is fixedly arranged.
  • the electrical machine according to the invention with the features of claim 1 has the advantage that it enables reduced installation effort with reliable fixing of the contact element to the plug module.
  • the contact element at least
  • Motor housing is formed or serves) is encapsulated by the plastic of the connector module.
  • the invention provides for the contact element serving for the ground contact to the motor housing to be designed as an insert in an (injection molding) tool for the connector module, so that when the connector module is formed by injecting
  • Contact element is encapsulated by the plastic in some areas, which enables a defined position and fixing of the contact element in the plug module.
  • the modified manufacturing process means that separate assembly of the contact element on the plug module is not required.
  • a first structurally preferred embodiment of the Contact element before that the contact portion of the contact element is designed to be elastically deformable and a deformation direction of the
  • the direction of insertion of the contact element runs into the motor housing.
  • the contact section has a convex shape on the side facing the motor housing.
  • a further structurally preferred embodiment of the contact element provides that the contact element is bow-shaped with a central opening in the area of the contact section.
  • the contact element With regard to a simple and economically inexpensive production of the contact element, it is provided that it consists of sheet metal and is designed as a stamped part. Depending on the arrangement of the contact element or the elements connected to the contact element, at least one bending process of the punched-out contact element can additionally be provided or required.
  • the electrical machine has a brush holder unit which is designed as a component separate from the plug module.
  • Radial gap, the connector module and the motor housing are spaced apart.
  • the contact element is additionally provided with an im
  • Plug module arranged, in particular electrically connectable to the vehicle ground ground pin is connected or the contact element in the plug module is designed as a ground pin that is connected to a harness connector of the
  • the contact element in a foot area in the
  • Transition area to the plug module has an enlarged cross section.
  • a further embodiment of the invention also provides that gaps are formed between the area of the contact element not encapsulated by the plastic and the plug module. These gaps are used in the manufacturing process of the connector module to enable the injection molding tool to be configured accordingly
  • FIG. 1 shows, in a partially sectioned, perspective illustration, a partial area of an electrical machine as part of a comfort drive in a motor vehicle
  • FIG. 2 shows one used in the electrical machine according to FIG.
  • FIG. 3 shows a detail of FIG. 2 in the area of a contact element for
  • FIG. 5 shows, in each case a sectional representation, a joining process between the plug module and the motor housing of the electrical machine.
  • FIG. 1 shows a partial area of an electric machine 10 having an electric motor, in particular for adjusting movable parts in a motor vehicle.
  • the electrical machine 10 is part of a gear drive device of a comfort drive in a motor vehicle, preferably a sunroof drive, a
  • the electrical machine 10 has a motor housing 12 made of metal, which is designed as a deep-drawn part and is also referred to as a pole pot housing.
  • An armature 14 with its armature shaft 16 is arranged within the motor housing 12 so that it can rotate about an axis of rotation 18, the axis of rotation 18 at the same time forms a longitudinal axis of the motor housing 12.
  • the armature windings of armature 14, not shown in detail, interact with strip-shaped magnets 20 arranged on the inner wall of motor housing 12.
  • a brush holder unit 22 (not shown in detail) and, in some areas, a plug module 24 in a parallel to the axis of rotation 18
  • Insertion direction 25 insertable.
  • Plug modules 24 are each designed as separate structural units or components, which are connected to one another, for example, by means of a latching connection or the like.
  • the brush holder unit 22 carries, in a manner known per se,
  • the plug module 24 and the brush holder unit 22 are also referred to by way of example in DE 10 2016 222 532 A1 by the applicant, which should be part of this application.
  • the connector module 24 has a connector body 26 which, in a manner known per se, is connected to a vehicle-side
  • Wiring harness connector can be contacted in order to control or operate the electrical machine 10.
  • plug body 26 which is in its interior
  • circuit carrier 28 as part of an electrical circuit which, for example, receives the essential components of the electronics of the electrical machine 10. From an electrical point of view, the circuit carrier 28 is electrically contacted on the one hand with a ground pin 30 in the area of the plug body 26, and on the other hand with the motor housing 12. Reference is made to FIGS. 2 and 3 below.
  • Connector module 24 has pins 32 which can be electrically contacted with circuit carrier 28.
  • One of the pins 32 is electrically connected to the contact element 35 which can be seen in FIGS. 2 to 3, which in turn has a section 36 (FIG. 4) is led to the ground pin 30 in the area of the plug body 26 or is connected to it.
  • the contact element 35 is made of sheet metal and is designed as a stamped part. Depending on the specific arrangement or design, it can also be provided that the contact element 35 has angled sections or the like in order to enable contact to be made with the circuit carrier 28 or with the ground pin 30.
  • the contact element 35 extends substantially coaxially to the axis of rotation 18 between two extensions 37, 38 of the plug module 24 made of plastic, with gaps 39, 40 being formed between the extensions 37, 38 and the contact element 35.
  • the alignment or arrangement of the contact element 35 is in turn such that a center plane 42 of the contact element 35 intersects the axis of rotation 18 or is aligned with it.
  • the extensions 37, 38 also have longitudinal ribs 43, 44 that facilitate the positioning or centering of the connector module 24 relative to the motor housing 12 when the connector module 24 is inserted into the motor housing 12 in the insertion direction 25.
  • the contact element 35 projects beyond the ribs 43, 44 in the radial direction, ie in the direction of the motor housing 12 with a contact section 45.
  • the contact element 35 in the area of the contact section 45 is not made of the plastic of the plug module 24 is surrounded or encapsulated, but protrudes freely from the connector module 24.
  • the area of the contact element 35 protruding into the plug module 24 is
  • the plastic of the plug module 24 is at least partially encapsulated by the plastic. This is achieved in that the contact element 35 as
  • Insert part in the injection molding tool for producing the connector module 24 is formed.
  • the contact element 35 is bow-shaped in the area of the contact section 45 and has an elongated opening 46 which runs in the longitudinal direction of the contact element 35.
  • the contact section 45 viewed in the longitudinal direction, has an at least approximately constant cross section, the contact section 45 having the side facing the motor housing 12 is convex
  • the contact section 45 is connected in a first connection area 48 to a rear section 49 of the contact element 35 in the elongate.
  • a second connecting area 51 of the contact section 45 is connected to a foot area 52 of the contact element 35. This foot area 52 faces
  • the foot region 52 has a fillet 54 which, as shown in FIG. 5, delimits a radial gap 55 in the motor housing 12 when the connector module 24 is installed , which is formed between the contact element 35 and an axial end region 56 of the motor housing 12.
  • the motor housing 12 In the joined state, the motor housing 12 also rests axially with a radially circumferential flange area 58 on a seal 60 arranged in the plug module 24.
  • the joining process between the connector module 24 and the motor housing 12 is explained using the sequence of figures in FIGS. 4 and 5 as follows:
  • the contact section 45 of the contact element 35 comes into contact with the inner wall of the motor housing 12 in the area of the axial end section 56.
  • a deformation force F is exerted on the contact section 45, which leads to the contact section 45 on the inner wall of the motor housing 12 on the inner wall of the motor housing 12 as shown in FIG Formation of an electrical contact is present.
  • the force F is diverted to the two connecting areas 48 and 51 of the contact element 35, the two connecting areas 48 and 51 simultaneously generating the required reaction force for the contact section 45 to rest against the motor housing 12 due to the rigidity of the contact element 35.
  • the electrical machine 10 described so far can be altered or modified in many ways without deviating from the inventive concept.
  • This consists in establishing a ground contact between the motor housing 12 and the plug module 24 by means of a contact element 35 to be designed in such a way that the contact element 35 is designed as an insert part in an injection molding tool for forming the plug module 24.

Landscapes

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

Abstract

L'invention concerne une machine électrique (10), notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur, comprenant un boîtier moteur (12) en métal, un élément de contact (35) métallique qui, avec une section de contact (45), est agencé en contact avec le boîtier moteur (12), l'élément de contact (35) étant fixé à un module d'enfichage (24) réalisé en matière plastique sous la forme d'une pièce moulée par injection, et étant relié au moins indirectement à un circuit électrique (28).
PCT/EP2020/069254 2019-07-22 2020-07-08 Machine électrique, notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur WO2021013548A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20739332.3A EP4005070A1 (fr) 2019-07-22 2020-07-08 Machine électrique, notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur
CN202080053062.2A CN114128107B (zh) 2019-07-22 2020-07-08 尤其是用于对机动车中的能运动的部件进行调节的电机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019210843.1A DE102019210843A1 (de) 2019-07-22 2019-07-22 Elektrische Maschine, insbesondere zum Verstellen beweglicher Teile in einem Kraftfahrzeug
DE102019210843.1 2019-07-22

Publications (1)

Publication Number Publication Date
WO2021013548A1 true WO2021013548A1 (fr) 2021-01-28

Family

ID=71575383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/069254 WO2021013548A1 (fr) 2019-07-22 2020-07-08 Machine électrique, notamment pour mettre en mouvement des pièces mobiles dans un véhicule à moteur

Country Status (4)

Country Link
EP (1) EP4005070A1 (fr)
CN (1) CN114128107B (fr)
DE (1) DE102019210843A1 (fr)
WO (1) WO2021013548A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858627A1 (de) * 1998-12-18 2000-06-21 Bosch Gmbh Robert Stellantrieb mit einem Elektromotor und mit einer Steuerelektronik
EP1625652A1 (fr) * 2003-05-20 2006-02-15 Siemens VDO Automotive Corporation Suppression d'emi dans des moteurs cc a aimants permanents presentant un moteur externe a carte de circuit imprime connectee et surmoulee
DE102013222336A1 (de) 2013-11-04 2015-05-07 Robert Bosch Gmbh Entstöreinrichtung, Elektromotor mit einer Entstöreinrichtung und Verwendung des Elektromotors
DE102016222532A1 (de) 2016-11-16 2018-05-17 Robert Bosch Gmbh Elektrische Maschine mit einem Bürstenhalter-Bauteil und einem Steckermodul
DE102017207165A1 (de) * 2017-04-28 2018-12-13 Robert Bosch Gmbh Elektrische Antriebseinheit mit einem Gehäuse
EP3471243A1 (fr) * 2016-06-09 2019-04-17 LG Innotek Co., Ltd. Borne de masse, ensemble couvercle et moteur les comprenant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1958627A1 (de) * 1969-11-21 1971-06-24 Daimler Benz Ag Verstellvorrichtung fuer Ventilerhebungen
DE19746518A1 (de) * 1997-10-22 1999-04-29 Bosch Gmbh Robert Einschubmodul für einen elektromotorischen Fensterheber
DE102009027190A1 (de) * 2009-06-25 2010-12-30 Robert Bosch Gmbh Elektrische Verbindungsanordnung
DE102012103928A1 (de) * 2012-05-04 2013-11-07 Pierburg Gmbh Gleichstrommotor zum Antrieb von Aggregaten eines Kraftfahrzeugs
DE102013213702A1 (de) * 2013-07-12 2015-01-15 Robert Bosch Gmbh Elektrische Maschine zum motorischen Verstellen beweglicher Teile im Kraftfahrzeug, sowie Verfahren zum Herstellen der elektrischen Maschine
JP7024320B2 (ja) * 2016-11-07 2022-02-24 株式会社デンソー モータ
DE102017216807A1 (de) * 2017-09-22 2019-03-28 Robert Bosch Gmbh Pumpeneinrichtung mit einem Kontaktierelement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858627A1 (de) * 1998-12-18 2000-06-21 Bosch Gmbh Robert Stellantrieb mit einem Elektromotor und mit einer Steuerelektronik
EP1625652A1 (fr) * 2003-05-20 2006-02-15 Siemens VDO Automotive Corporation Suppression d'emi dans des moteurs cc a aimants permanents presentant un moteur externe a carte de circuit imprime connectee et surmoulee
DE102013222336A1 (de) 2013-11-04 2015-05-07 Robert Bosch Gmbh Entstöreinrichtung, Elektromotor mit einer Entstöreinrichtung und Verwendung des Elektromotors
EP3471243A1 (fr) * 2016-06-09 2019-04-17 LG Innotek Co., Ltd. Borne de masse, ensemble couvercle et moteur les comprenant
DE102016222532A1 (de) 2016-11-16 2018-05-17 Robert Bosch Gmbh Elektrische Maschine mit einem Bürstenhalter-Bauteil und einem Steckermodul
DE102017207165A1 (de) * 2017-04-28 2018-12-13 Robert Bosch Gmbh Elektrische Antriebseinheit mit einem Gehäuse

Also Published As

Publication number Publication date
DE102019210843A1 (de) 2021-01-28
CN114128107A (zh) 2022-03-01
CN114128107B (zh) 2024-04-26
EP4005070A1 (fr) 2022-06-01

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