WO2022214256A1 - Moteur électrique - Google Patents

Moteur électrique Download PDF

Info

Publication number
WO2022214256A1
WO2022214256A1 PCT/EP2022/055801 EP2022055801W WO2022214256A1 WO 2022214256 A1 WO2022214256 A1 WO 2022214256A1 EP 2022055801 W EP2022055801 W EP 2022055801W WO 2022214256 A1 WO2022214256 A1 WO 2022214256A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
flange
shielding
electric motor
support plate
Prior art date
Application number
PCT/EP2022/055801
Other languages
German (de)
English (en)
Inventor
Sunilkumar RAMALINGESH
Levente GYERKO
Original Assignee
Webasto SE
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 Webasto SE filed Critical Webasto SE
Publication of WO2022214256A1 publication Critical patent/WO2022214256A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/081—Structural association with bearings specially adapted for worm gear drives
    • 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
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • H02K11/014—Shields associated with stationary parts, e.g. stator cores
    • H02K11/0141—Shields associated with casings, enclosures or brackets
    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
    • 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
    • H02K5/15—Mounting arrangements for bearing-shields or end plates
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
    • H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel

Definitions

  • the present invention relates to an electric motor, in particular for windows and/or sliding roofs of vehicles, according to the preamble of claim 1.
  • Electric motors for raising windows or for opening and closing sunroofs of a vehicle are known, and it is also known that the motor drives often cause electromagnetic emissions that lead to malfunctions.
  • an electric motor or drive as is used in particular for window lifters or sunroof motors in passenger cars, which is arranged in the roof or frame area of the body, the roof or the door.
  • This has an armature with a drive shaft, wherein the opposite free end of the armature Drive shaft has a power transmission section, which is designed, for example, in a known manner as a worm or spiral and is in operative connection with a gear wheel or ring gear of a low-speed rotor, which in turn moves at least one drive train or a drive chain, via which the desired displacement of a roof or window element he follows.
  • the armature is arranged in a housing pot, which in turn is attached to a transmission housing and/or merges into it, in which at least part of a transmission is accommodated.
  • the core of the idea is that the drive shaft protrudes from the housing pot into the gear housing and in this transition between the housing pot and the gear housing a metallic shielding and support plate is provided, which has a passage opening for the drive shaft. Furthermore, a bearing receiving element is provided in the shielding and support plate and around or adjacent to the passage opening, on or in which a rotary bearing is arranged, on which the drive shaft is rotatably held and mounted.
  • the rotary bearing is, in particular, a roller or ball bearing, but can also be designed as a purely plastic sliding bearing.
  • the advantage lies in a combined mechanical load-bearing function and electromagnetic shielding performance due to the shielding and support plate that is transverse to the drive shaft, which is very simply constructed and effectively shields electromagnetic radiation from the excitation side of the armature from the outside area.
  • the bearing receiving element for receiving the pivot bearing is arranged inside the transmission housing, that is to say with its side receiving a pivot bearing outside the housing pot. It has proven to be particularly advantageous here if the bearing receiving element is designed as a depression in the shielding and support plate, in particular as a deep-drawn receiving area which is protruded in the direction of the housing pot. The stiffening that the entire shielding and support plate undergoes as a result of such a protuberance leads to a high level of rigidity, so that very thin sheet metal can be used for such a shielding and support plate.
  • a further improved embodiment provides that a bearing bush is arranged around the passage opening and/or on the side of the housing pot, ie at least partially on the rear side of the bearing receiving element.
  • the shielding and support plate has at least one contact pin or at least one contact pin is attached to the shielding and support plate, with the at least one contact pin protruding into the interior of the gear housing.
  • An electrically conductive connection for the purpose of grounding is possible via this.
  • the at least one contact pin is ideally formed out of the base material of the shielding and support plate by being formed as the original section of the shielding and support plate by two substantially parallel slots or cuts and being bent out of the shielding and support plate.
  • the advantage is a very stable and secure connection with the shielding and support plate, without additional plug or solder connections.
  • a free end of a contact pin can be arranged in the interior of the transmission housing in such a way that an electrical connection can be established easily.
  • a further advantageous embodiment provides at least one flange or flange area on the housing pot, which has at least one flange bore.
  • the shielding and support plate has a frame or edge area, which also has at least one recess, the flange bore of the housing pot and the recess of the shielding and support plate being aligned with one another and being attached to the flange or flange area and / or a local fastener counter-receptacle, such as a screw, are attached in or on the transmission housing.
  • the aforementioned elements are decoupled in that the housing pot has a flange or flange area with one or more flange bores, and the shielding and support plate also has a frame or edge area with one or more recesses.
  • at least one flange bore of the housing pot is not congruent and is therefore attached independently of the recess in the frame of the shielding and support plate and via at least one independent fastener on the flange and/or the flange area in a counter-receptacle for fasteners in or on the transmission housing.
  • This enables the housing pot to be opened and removed without necessarily having to detach the shielding and support plate.
  • the gear can therefore remain closed and protected if, for example, the brushes on the anchor side have to be changed.
  • An embodiment that is improved with regard to the bearings and the drive shaft provides that the drive shaft is also rotatably mounted on an intermediate pivot bearing in the transmission housing, between the bearing receiving element that accommodates the pivot bearing and the power transmission section.
  • a further embodiment provides that the drive shaft is rotatably mounted on an end pivot bearing in the gear housing at the outermost free end, i.e. seen from the armature in the axial direction, after the force transmission section, in addition to the pivot bearing accommodated in the bearing element.
  • Fig. 1 as a perspective sectional view of the transmission housing
  • Fig. 2 as a perspective view of the invention
  • FIG. 6 shows the shielding and support plate according to FIG. 5 in a further perspective representation.
  • the structure of the electric motor 1 is shown in FIG.
  • the housing pot 5 can be seen, which is covered and closed in the transition to the transmission housing 6 by the transverse metal shielding and support plate 7 .
  • the drive shaft 10 with the power transmission section 4 on the left axle section arranged in the transmission housing 6 is rotatably mounted at three bearing points.
  • the flange bore, not shown, in the flange or flange area 5.1 of the housing pot 5 is congruent with that of the recess 21 ( Figure 4) in the frame or frame area 19 of the shielding and support plate 7. In the embodiment shown, these are attached together by means of the fastening means 13 on the Flange or flange 14 of the gear housing 6 screwed.
  • FIG. 2 shows the electric motor 1 according to the invention in its installed position in the roof frame 20 of a vehicle.
  • the housing 1 has on the left side a housing pot 5 accommodating the armature 2 and on the right side a gear housing 6.
  • the two housing parts rest against one another and in the installed position essentially form the common housing of the electric motor 1 and the associated gear 12.
  • the open part of the gear housing 6 shown in FIG. 3 of the electric motor 1 according to the invention has a gear 12 as a central element, of which only a guide and bearing shell is shown for a low-speed.
  • the drive shaft 10 protrudes from the armature 2 shown on the right into the gear housing 6 shown on the left and leads tangentially at the top edge meshing past the gear 12 so that, for example, the power can be transmitted by means of a sprocket (not shown) of the low-speed.
  • the drive shaft 10 is fastened to the flange or flange area 14 and/or the edge of the transmission housing 6 by means of the shielding and support plate 7 and a pivot bearing 11 arranged there (FIG. 1) via fastening means 13, here a screw connection.
  • the axis of rotation 24 of the drive shaft 10 is sketched as a dot-dash line.
  • FIG. 4 shows the drive shaft 10, as described for FIG. 1, as an isolated individual component, the central shielding and support plate 7 with the bearing receiving element 8 and the pivot bearing 11 designed as a ball bearing being visible. Furthermore, the bearing bush 16 inserted into the lead-through opening 19 (FIG. 5) of the shielding and support plate 7 can be seen on the side of the armature 2.
  • the shielding and support plate 7, the deep-drawn bearing receiving element 8 and the associated pivot bearing 11 with the rear bearing bush 16 are shown in a perspective view.
  • the theoretical axis of rotation 24 of a drive shaft 10, not shown, is sketched as a dot-dash line.
  • the contact pin 17 is shown, which is perpendicular to the side of the bearing receiving element 8 on the shielding and support plate 7, from which it was formed and bent out.
  • the shielding and support plate 7 was provided with two essentially parallel cuts or slits coming from the edge and the web formed in this way was then bent out of the base plate by 90° so that it can serve as a connection for grounding.
  • the resulting slot area is with the Reference numeral 18 reported.
  • FIG. 6 shows the components according to FIG. 5 after they have been combined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne un moteur électrique (1), en particulier pour des dispositifs de commande de fenêtre ou des toits coulissants, comprenant une ancre (2) ayant un arbre de commande (10) doté d'une extrémité libre (3) avec une partie de transmission de force (4). L'ancre (2) est disposée dans une coque de boîtier (5) et la coque de boîtier (5) est fixée et/ou passe dans un carter de boîte de vitesses (6) renfermant une boîte de vitesses (12). L'arbre de commande (10) fait saillie dans le carter de boîte de vitesses (6) par rapport à la coque de boîtier (5). Une plaque de protection et de support métallique (7) qui présente une ouverture de passage (9) pour l'arbre de commande (10) est disposée entre la coque de boîtier (5) et le carter de boîte de vitesses (6). Un élément de siège de palier (8) est disposé autour de l'ouverture de passage (9) dans la plaque de protection et de support (7), et un palier rotatif (11) sur lequel l'arbre de commande (10) est retenu et monté rotatif est disposé sur ou dans cet élément de siège de palier.
PCT/EP2022/055801 2021-04-06 2022-03-08 Moteur électrique WO2022214256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021108502.0A DE102021108502A1 (de) 2021-04-06 2021-04-06 Elektromotor
DE102021108502.0 2021-04-06

Publications (1)

Publication Number Publication Date
WO2022214256A1 true WO2022214256A1 (fr) 2022-10-13

Family

ID=80978965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/055801 WO2022214256A1 (fr) 2021-04-06 2022-03-08 Moteur électrique

Country Status (2)

Country Link
DE (1) DE102021108502A1 (fr)
WO (1) WO2022214256A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523188B2 (fr) 1974-08-05 1980-06-21
US20040012296A1 (en) 2002-07-18 2004-01-22 Mitsuba Corporation Electric motor
DE102006019689A1 (de) 2005-04-28 2007-04-26 Asmo Co., Ltd. Motor und Bürstenhalter hierfür
JP4007055B2 (ja) * 2002-05-10 2007-11-14 株式会社ジェイテクト 電動式パワーステアリング装置
US20080116758A1 (en) * 2005-04-26 2008-05-22 Igarashi Electric Works Ltd. Electric actuator and a motor used therein
US20090272599A1 (en) * 2006-04-11 2009-11-05 Nsk Ltd. Electric Power Steering Apparatus
CN201639428U (zh) * 2009-09-21 2010-11-17 苏州金莱克汽车电机有限公司 车窗电机
DE102009003230A1 (de) * 2009-05-19 2010-11-25 Robert Bosch Gmbh Lager zur Lagerung einer Welle
DE102009025348A1 (de) * 2009-06-18 2010-12-23 Bühler Motor GmbH Elektrisch leitfähige Beschichtung eines Kunststoff-Gehäuses
EP2371673A2 (fr) * 2010-03-31 2011-10-05 Mitsubishi Electric Corporation Appareil de commande électrique
DE202013005680U1 (de) * 2013-06-24 2013-07-11 Bosch (China) Investment Ltd. Getriebe-Antriebseinrichtung
US20130279838A1 (en) * 2010-12-29 2013-10-24 Robert Bosch Gmbh Device for mounting a shaft in a housing, and assembly having a device according to the invention
US20150326096A1 (en) * 2013-09-06 2015-11-12 Mitsuba Corporation Electric motor
US20150357884A1 (en) * 2014-06-09 2015-12-10 Johnson Electric S.A. Motor and Actuator
JP2016167931A (ja) * 2015-03-10 2016-09-15 アスモ株式会社 回転電機及びモータ装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101685996B (zh) 2008-09-28 2013-06-19 德昌电机(深圳)有限公司 马达总成及其轴承套
JP5523188B2 (ja) 2010-04-27 2014-06-18 株式会社ミツバ 電動モータ、減速機付モータ、およびサンルーフ駆動装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523188B2 (fr) 1974-08-05 1980-06-21
JP4007055B2 (ja) * 2002-05-10 2007-11-14 株式会社ジェイテクト 電動式パワーステアリング装置
US20040012296A1 (en) 2002-07-18 2004-01-22 Mitsuba Corporation Electric motor
US20080116758A1 (en) * 2005-04-26 2008-05-22 Igarashi Electric Works Ltd. Electric actuator and a motor used therein
DE102006019689A1 (de) 2005-04-28 2007-04-26 Asmo Co., Ltd. Motor und Bürstenhalter hierfür
US20090272599A1 (en) * 2006-04-11 2009-11-05 Nsk Ltd. Electric Power Steering Apparatus
DE102009003230A1 (de) * 2009-05-19 2010-11-25 Robert Bosch Gmbh Lager zur Lagerung einer Welle
DE102009025348A1 (de) * 2009-06-18 2010-12-23 Bühler Motor GmbH Elektrisch leitfähige Beschichtung eines Kunststoff-Gehäuses
CN201639428U (zh) * 2009-09-21 2010-11-17 苏州金莱克汽车电机有限公司 车窗电机
EP2371673A2 (fr) * 2010-03-31 2011-10-05 Mitsubishi Electric Corporation Appareil de commande électrique
US20130279838A1 (en) * 2010-12-29 2013-10-24 Robert Bosch Gmbh Device for mounting a shaft in a housing, and assembly having a device according to the invention
DE202013005680U1 (de) * 2013-06-24 2013-07-11 Bosch (China) Investment Ltd. Getriebe-Antriebseinrichtung
US20150326096A1 (en) * 2013-09-06 2015-11-12 Mitsuba Corporation Electric motor
US20150357884A1 (en) * 2014-06-09 2015-12-10 Johnson Electric S.A. Motor and Actuator
JP2016167931A (ja) * 2015-03-10 2016-09-15 アスモ株式会社 回転電機及びモータ装置

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Publication number Publication date
DE102021108502A1 (de) 2022-10-06

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