WO2007121828A2 - Bloc pour un moteur à collecteur, moteur à collecteur comprenant ce bloc et procédé de montage d'un tel moteur à collecteur - Google Patents

Bloc pour un moteur à collecteur, moteur à collecteur comprenant ce bloc et procédé de montage d'un tel moteur à collecteur Download PDF

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Publication number
WO2007121828A2
WO2007121828A2 PCT/EP2007/002911 EP2007002911W WO2007121828A2 WO 2007121828 A2 WO2007121828 A2 WO 2007121828A2 EP 2007002911 W EP2007002911 W EP 2007002911W WO 2007121828 A2 WO2007121828 A2 WO 2007121828A2
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
shaft part
mandrel
assembly
electric drive
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/EP2007/002911
Other languages
German (de)
English (en)
Other versions
WO2007121828A3 (fr
Inventor
Richard Guttenberger
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.)
Buehler Motor GmbH
Original Assignee
Buehler Motor 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 Buehler Motor GmbH filed Critical Buehler Motor GmbH
Publication of WO2007121828A2 publication Critical patent/WO2007121828A2/fr
Publication of WO2007121828A3 publication Critical patent/WO2007121828A3/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
    • 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
    • H02K7/003—Couplings; Details of shafts
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • 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
    • H02K5/14—Means for supporting or protecting brushes or brush holders
    • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
    • H02K5/148—Slidably supported brushes
    • 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
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys

Definitions

  • the invention relates to an electric drive having a housing (2), a rotor (50), a stator (40), a magnetic pole wheel (8) arranged on an output shaft as a sensor transmitter, and a stator-fixed magnetic field sensor (9) as a sensor receiver.
  • Such drives are used in large numbers as actuators in the automotive field.
  • a generic electric drive is known from DE 196 53 209 A1.
  • a high-pole rotor wheel is used as the encoder whose diameter is significantly larger than the diameter of a commutator, in particular, it is larger than a central recess in a brush carrier. Since the flywheel is arranged together with the commutator and a rotor winding on a shaft and the flywheel is arranged axially in front of the commutator, the brush holder can not be mounted in this case.
  • DE 196 53 209 A1 solves this problem in that the pole wheel is first pressed onto the shaft when the brush holder is mounted.
  • the rotor To mount the brush holder in the correct position, the rotor must already be inserted into the housing. During subsequent pressing of the pole wheel, a housing opening is necessary for supporting the rotor, through which a support tool can be introduced. The opening must then be closed and sealed again.
  • the output shaft consists of a first shaft part (10) and a second shaft part (11), wherein the first shaft part (10) with the second shaft part (11) is at least rotationally fixed and the magnetic pole (8) is fixedly connected to the second shaft part (11), wherein the magnetic pole wheel (8) cooperates with the magnetic field sensor (9).
  • the invention is used in a commutator motor, it is provided to connect the first shaft part (10) fixed to a rotor winding (5) wound rotor core (4) and a commutator (6), wherein the diameter of Magnetpolrads ( 8) is greater than the diameter of the commutator (6). This makes the assembly much easier.
  • a second embodiment of the invention provides that the first shaft part (10) passes through the housing, outside the housing with the second Wellentei! (11) is rotatably connected and the Magnetpolrad (8) outside the housing (2) is arranged and cooperates with the magnetic field sensor (9).
  • any conventional electric drive can be easily retrofitted with a sensor device.
  • the first shaft part is a cylindrical solid shaft or a hollow shaft and the second shaft part at least partially a hollow shaft.
  • the outer diameter of the solid or hollow shaft and the inner diameter of the hollow shaft are coordinated so that they can be connected to each other in an advantageous manner by a press fit or by positive engagement.
  • the second shaft part may be both an engine output shaft and a transmission output shaft.
  • the second shaft part is an engine output shaft.
  • one end of the second shaft part with a transmission element, in particular a pinion (12) is integral.
  • the one or more magnetic field sensors can be arranged to simplify the switching pattern on a separate circuit board, which is preferably arranged between the bearing plate (3) and the brush holder (7). This arrangement also shortens the tolerance chain between the position of the pole wheel and the position of the magnetic field sensors.
  • the printed circuit board (21) is arranged in the housing (2), wherein the magnetic field sensor (9) passes through a housing opening into the effective area of the outside Housing (2) arranged Magnetpolrads (8) protrudes.
  • the printed circuit board (21) can also be arranged outside the housing (2).
  • a particularly advantageous embodiment which can be used equally well for both electric motors and geared motors is that the magnetic field sensor (9), the second shaft part (11) with the magnetic pole wheel (8) and a printed circuit board (21) with which the magnetic field sensor electrically and mechanically is arranged, in a second housing (102) arranged to form a sensor module (100), wherein the sensor module (100) is subsequently mountable on an existing A ⁇ triebsbautik (101), wherein the two shafts are at least rotatably connected to each other and the second shaft part (11) is rotatably mounted in the second housing (102).
  • a second solution to the problem is that an assembly of an electric drive (1) is formed, consisting of a bearing plate (3), a brush holder (7), a magnetic field sensor (9) and a Magnetpolrad (8) receiving element ( 11, 15), which has neither a commutator, nor a winding.
  • This assembly is compact and consists of defined and interconnected components and can be prefabricated elsewhere, regardless of the rotor and housing.
  • a preferred embodiment consists in that the element is a shaft part (11) which is rotatably mounted in a bearing (14) accommodated in the bearing plate (3).
  • the pole can already be arranged in the correct position during pre-assembly. This is greatly facilitated by the good accessibility of the components.
  • a further embodiment of the second solution consists essentially in the fact that the element is an assembly mandrel (15), which serves as a transport lock and / or mounting fixation. Even with this solution, most of the advantages of the embodiment already described are given. - A -
  • the mounting mandrel is designed so that resilient snap means (22) are provided which secure the pole wheel. This guarantees trouble-free handling.
  • an insertion aid (16) is used at the end of the assembly mandrel (15).
  • the assembly mandrel (10) has a smaller diameter at the beginning of the insertion aid (16) and a larger diameter at the end of the insertion aid than in a subsequent central region (17) of the assembly mandrel (15).
  • the transition between the largest diameter of the insertion aid (16) to the central region (17) of the mounting mandrel (15) is cone-shaped, wherein the cone angle is selected so that a non-destructive disassembly of the mounting mandrel (15) is possible.
  • the mounting mandrel (15) is axially secured on the other side, it is provided at one end with a Anformung (23) of larger diameter.
  • the mounting mandrel consists of a resilient plastic material and / or is formed with at least one slot, which causes a compliance.
  • the named variant can be produced by the following method steps: a) inserting an assembly mandrel 15 into a mounting device; b) inserting a bearing plate (3) in the mounting device; c) mounting a bearing (14) on the mounting mandrel on the one hand and in the bearing plate (3) on the other; d) mounting a Magnetpolrads (8) on the mounting mandrel (15); e) mounting a printed circuit board (19) arranged thereon magnetic field sensor (9) to the end shield; f) Mounting a brush holder (7) on the bearing plate (3).
  • the steps a) and b) can also be reversed.
  • an assembly mandrel is alternatively used in order to produce a prefabricated compact assembly can.
  • the mounting mandrel holds the pole wheel, so that no problems during transport and handling can occur. Its removal occurs during the final assembly of the rotor by the rotor shaft, if this simultaneously assumes the holding function for the pole wheel.
  • a third solution of the object is achieved by the following method steps: a) inserting a bearing plate (3) in a mounting device having an axially resilient mandrel (18), b) mounting a Magnetpolrads (8) on the mandrel (18); c) installation of a Printed circuit board (19) with magnetic field sensor (9) arranged thereon on the bearing plate; d) mounting a brush holder (7) on the bearing plate; Mounting a rotor shaft equipped with a rotor core (4), a rotor winding (5) and a commutator (6), wherein the mandrel (18) is pushed back and the components mounted on the mandrel are mounted on the shaft.
  • This solution is designed so that the complete assembly is carried out in a device or at a location. The pre-assembly of a module is not possible here.
  • FIG. 4a is an enlarged sectional view of a mounting mandrel
  • Fig. 5 shows a third embodiment of the invention
  • Fig. 6 shows a fourth embodiment of the invention.
  • FIG. 1 shows: a commutator motor 1, consisting of a cup-shaped deep-drawn housing 1, a bearing plate 3, a rotor 30, comprising a first shaft part 10, which in a housing-side bearing 28 (here a rolling bearing), a second shaft part 11, which is mounted in a bearing plate side bearing 14 (also a rolling bearing), a rotor core 4, a rotor winding 5 and a commutator 6, a Magnetpolrad 8, a printed circuit board 21 with mounted magnetic field sensors 9 and a brush holder 7 with brushes 19 which are radially movable and spring-loaded in brush boxes 34 are.
  • a commutator motor 1 consisting of a cup-shaped deep-drawn housing 1, a bearing plate 3, a rotor 30, comprising a first shaft part 10, which in a housing-side bearing 28 (here a rolling bearing), a second shaft part 11, which is mounted in a bearing plate side bearing 14 (also a rolling bearing), a rotor core 4, a rotor winding
  • the two bearings 14, 28 may be rolling bearings.
  • the outer ring of the bearing 14 is preferably radial point riveted.
  • the outer ring of the bearing 28 is loosely received in the housing (deep-drawn pot) while the inner ring is firmly mounted on the armature shaft.
  • the bearing plate side bearing is axially supported by an inner collar 35.
  • the circuit board 21 is connected to the bearing plate by riveting. Alternatively, the circuit board could also be connected to the brush bridge, eg by riveting.
  • the brush holder 7 has on its peripheral portion axially on both sides elastomeric seals 33 which rest on the one hand on a housing flange 32 and on the other hand on the bearing plate 3.
  • the bearing plate 3 rests against the housing flange 32 and surrounds the brush holder 7 in this area radially.
  • the brush holder has radially inside the elastomer seals on a hollow cylindrical radially projecting annular collar 36, the outer peripheral surface rests against an inner peripheral portion of the bearing plate 3 and on the inner peripheral region of the circuit board 21 is arranged.
  • the Magnetpolrad 8 is mounted on a bushing 26 which is pressed onto the second shaft part 1 1 and lies axially between the bearing-side bearing 14 and the circuit board 21, wherein the magnetic field sensors 9 are axially facing him.
  • the bush 26 may consist of free-cutting steel, ETG or plastic.
  • the second shaft part 11 has at the remote end of the engine a molded pinion 12 whose tip diameter is smaller than the outer diameter of the second shaft part 11.
  • the brush bridge is made of a plastic material, the bearing plate preferably made of a light metal, such as aluminum or zinc, or plastic. Light metal bearing shields are produced by die-casting, plastic bearing shields by injection molding.
  • the brush holder can also be designed in the form of a printed circuit board.
  • FIG. 2 shows, as a second embodiment of the invention, an assembly which serves as a preassembly assembly and can be manufactured separately and independently of the final assembly location.
  • the pre-assembly has a bearing plate 3, a printed circuit board 21, a brush holder 7 and a bearing 14, which are arranged analogously to FIG.
  • a Magnetpolrad 8 is arranged as well as in Fig. 1, but not mounted on a shaft part, but on a mounting mandrel 15 which is held in the bearing 14.
  • the assembly mandrel 15, which consists of a plastic material, for example POM, is described in more detail in FIGS. 4a and 4b.
  • a shaft member 10 is indicated, which is moved with a force F in the direction of the mounting mandrel 15.
  • the sleeve 26 is supported on the inner ring of the bearing 14, whereby the magnetic pole 8 itself remains tension-free. It is possible to support the inner ring of the bearing 14 during this process from below so that it does not carry any damage assembly.
  • the bush 26 is arranged on the assembly mandrel 15 in a central region 17 which extends in the axial direction to the end of the bearing 14 and by an annular collar Anformung 23 on the one hand and by a transition region 29 which forms the transition to a conical insertion aid 16, on the other hand is limited.
  • the insertion aid is used for mounting the mounting mandrel 15, while the likewise conical transition region 29 is used for easier disassembly of the mounting mandrel 15.
  • the cone of the insertion aid 16 is flatter than the cone on
  • Transition area 29 because the transition area must also ensure a secure support during transport and handling of the assembly.
  • Fig. 3 shows the same structure as Fig. 2, wherein in addition a second shaft part is indicated, which can be pressed after assembly of the first shaft part 10 at its end.
  • the first shaft part can also be provided with a pinion gear whose diameter is slightly smaller than the shaft diameter of the shaft part 10.
  • FIG. 4a and 4b show the mounting mandrel 15 in enlarged, Fig. 4a as a three-dimensional and Fig. 4b as a sectional view.
  • the mounting mandrel 15 is slotted at least in the receiving area for the magnetic pole wheel 8 (with bushing 26) and in the path area covered during its assembly.
  • three slits 27 starting at a distance of 120 ° from the outside are provided in the center.
  • the different cone angles of the insertion aid 16 and of the transitional region 29 can clearly be seen in FIG. 4 b.
  • Slits 27 must be adapted to the maximum diameter of the insertion, so that the amplitude of the deflection movement can be at least so large that an assembly of Magnetpolrads 8 is possible.
  • the Anformung 23 serves as a stop for the assembly of the mounting mandrel in the camp 14th
  • Fig. 5 shows a third embodiment of the invention in which the assembly must be made at a mounting location.
  • a special mounting device is required, in which a mandrel 18 is resiliently mounted and mounted in a guide sleeve 24.
  • the mounting device is shown in Fig. 5 only incomplete.
  • a spring 25 is supported in a bottom of the mounting device and also guided laterally - this can be the Fhaku ⁇ gshülse extended in the shown area of the spring designed as a spring 25 and fixed to the ground or be integral with the ground.
  • the travel the spring 25 must be at least as large as to allow mounting of a shaft member 10 such that the shaft member 10 protrudes sufficiently far beyond a bearing 14. It is sufficient if a gear member can be mounted on the projecting shaft portion or if one with the shaft member 10 one-piece or previously mounted gear element so far protrudes beyond the end of the bearing shield that a
  • Fig. 6 shows in a stylized manner a fourth embodiment of the electric drive 1, consisting of a drive assembly 101, which may be an electric motor or a geared motor and a sensor module 100.
  • the electric motor may be a commutator, an electronically commutated DC motor, a synchronous motor, a Stepper motor or any other small or micro motor.
  • the geared motor may include a spur gear, a planetary gear, a worm gear, an eccentric gear, a Harmony Drive gear, or any other gear or gear combination. From the drive assembly 101, a first shaft part 10 protrudes into the sensor module 100.
  • the sensor module 100 comprises a second housing 102 (sensor module housing), in which a second shaft part 11 is mounted via a bearing 106, a pole wheel 8 and a printed circuit board 21 with a magnetic field sensor 9.
  • the second shaft part 11 is provided with a pinion 12 and partially formed as a hollow shaft connected to the first shaft 10 frictionally and carries the pole wheel 8, which is fixedly mounted thereon, for example by gluing the flywheel 8 is made of a permanent magnetic material, such as a ferrite material and is provided with an alternating polarity , Axially opposite the flywheel 8, a magnetic field sensor 9 with a circuit board 21 is electrically and mechanically connected to the sensor module 100 to electrically connect to a control unit or electrical connector pins 103 are soldered to the circuit board 21 and into a connector housing 104, which is part of second housing 102 is guided.
  • the circuit board is fixed in the housing by a snap connection (not shown), it can also be screwed or fixed by caulking.
  • the sensor module itself and the drive assembly must in addition to the mechanical frictional connection between the first shaft part 10 and the second shaft part 11 be secured at least against rotation.
  • a housing projection 105 of the second housing 102 is provided, which engages in a complementary recess of the first housing 2. Incidentally, it makes sense to screw the two housings together, crimp or connect with each other in any other suitable manner.
  • the second housing 102 consists of two housing parts or one
  • Housing part which is closed by mounting to the drive assembly 101.
  • a plastic material is preferably used for the second housing.
  • the sensor module 100 is preferably completely pre-assembled and then mounted on the drive assembly 101 and fastened.
  • the drive module can also be used without a sensor module for other applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

La présente invention concerne un entraînement électrique comprenant un carter (2), un rotor (50), un stator (40), un induit magnétique (8) monté sur un arbre secondaire et servant d'émetteur de détection, ainsi qu'un capteur de champ magnétique (9) solidaire du stator et servant de récepteur de détection. L'objectif de la présente invention est de mettre au point un moteur à collecteur qui soit rapide à monter et économique à fabriquer et qui présente une grande précision pour l'identification d'une rotation et une grande qualité du signal. A cet effet, l'arbre secondaire est constitué d'une première pièce d'arbre (10) et d'une seconde pièce d'arbre (11), lesquelles pièces sont reliées au moins solidaires en rotation, et l'induit magnétique (8) est relié fixement à la seconde pièce d'arbre (11) et coopère avec le capteur de champ magnétique (9).
PCT/EP2007/002911 2006-04-19 2007-03-31 Bloc pour un moteur à collecteur, moteur à collecteur comprenant ce bloc et procédé de montage d'un tel moteur à collecteur Ceased WO2007121828A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006017905A DE102006017905A1 (de) 2006-04-19 2006-04-19 Baugruppe für einen Kommutatormotor, Kommutatormotor mit dieser Baugruppe und Verfahren zur Montage des Kommutatormotors
DE102006017905.6 2006-04-19

Publications (2)

Publication Number Publication Date
WO2007121828A2 true WO2007121828A2 (fr) 2007-11-01
WO2007121828A3 WO2007121828A3 (fr) 2007-12-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/002911 Ceased WO2007121828A2 (fr) 2006-04-19 2007-03-31 Bloc pour un moteur à collecteur, moteur à collecteur comprenant ce bloc et procédé de montage d'un tel moteur à collecteur

Country Status (2)

Country Link
DE (1) DE102006017905A1 (fr)
WO (1) WO2007121828A2 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109075688A (zh) * 2016-04-22 2018-12-21 三菱电机株式会社 旋转电机

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DE102008013402A1 (de) * 2008-03-10 2009-09-17 Robert Bosch Gmbh Elektrische Maschine für ein Hybridfahrzeug sowie Lagerschild der elektrischen Maschine
DE202012000412U1 (de) * 2012-01-18 2012-04-17 Dewertokin Gmbh Elektrischer Getriebemotor für Möbelverstellung
DE102015207278A1 (de) * 2015-04-22 2016-10-27 Robert Bosch Gmbh Elektrische Maschine und Transportvorrichtung für eine elektrische Maschine
DE102015226755A1 (de) * 2015-12-28 2017-06-29 Robert Bosch Gmbh Elektromotor für Stellantriebe in Kraftfahrzeugen und Getriebe-Antriebseinrichtung
DE102016206479B4 (de) * 2016-04-18 2020-11-05 Schaeffler Technologies AG & Co. KG Verfahren zur Montage einer Antriebseinheit
FR3071976A1 (fr) * 2017-09-29 2019-04-05 Valeo Systemes De Controle Moteur Compresseur electrique
DE102018121058A1 (de) * 2018-08-29 2020-03-05 Wabco Gmbh Kompressoraggregat, Druckluftversorgungssystem, insbesondere für ein Fahrzeug mit einem Druckluftversorgungssystem
DE102020214773A1 (de) 2020-11-25 2022-05-25 Valeo Siemens Eautomotive Germany Gmbh Verfahren zum Ankoppeln einer elektrischen Maschine an ein Getriebe und Getriebemotor
US20240223042A1 (en) * 2022-12-30 2024-07-04 Black & Decker Inc. Compact outer-rotor brushless motor for a power tool

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DE29601188U1 (de) * 1996-01-25 1996-03-14 Pambor, Ulf, 65366 Geisenheim Vorrichtung zum Ausrichten von Montageteilen sowie Drehgeberbaugruppe
DE19653209A1 (de) * 1996-12-19 1998-06-25 Siemens Ag Kommutator-Stellmotor mit hochauflösender Dreherkennung
FR2807231B1 (fr) * 1999-11-18 2002-06-07 Valeo Equip Electr Moteur Machines electriques aptes a etre utilisees dans un vehicule automobile d'une part comme generateur et d'autre part comme moteur electrique pour le demarrage du moteur a combustion interne du vehicule
US6550599B2 (en) * 2000-06-06 2003-04-22 Asmo Co., Ltd. Motor having clutch and manufacturing method thereof
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Publication number Priority date Publication date Assignee Title
CN109075688A (zh) * 2016-04-22 2018-12-21 三菱电机株式会社 旋转电机
EP3447889A4 (fr) * 2016-04-22 2019-04-24 Mitsubishi Electric Corporation Machine rotative électrique
CN109075688B (zh) * 2016-04-22 2020-07-17 三菱电机株式会社 旋转电机

Also Published As

Publication number Publication date
WO2007121828A3 (fr) 2007-12-06
DE102006017905A1 (de) 2007-10-25

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