WO2018091242A1 - Machine électrique - Google Patents

Machine électrique Download PDF

Info

Publication number
WO2018091242A1
WO2018091242A1 PCT/EP2017/077285 EP2017077285W WO2018091242A1 WO 2018091242 A1 WO2018091242 A1 WO 2018091242A1 EP 2017077285 W EP2017077285 W EP 2017077285W WO 2018091242 A1 WO2018091242 A1 WO 2018091242A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
plug
suppression element
contacting
brushes
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/EP2017/077285
Other languages
German (de)
English (en)
Inventor
Laszlo Bakai
Jens BENECKE
Peter UNGVARI
Norbert SZUCS
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 CN201780070985.7A priority Critical patent/CN109937524B/zh
Publication of WO2018091242A1 publication Critical patent/WO2018091242A1/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
    • 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
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • 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
    • 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
    • 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
    • H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes

Definitions

  • the present invention relates to an electric machine with a
  • Electric motor and one of these drivable transmission which is arranged in a transmission housing, wherein the electric motor has an associated motor housing and for power supply via a with a
  • Brush holder connected connection plug is electrically conductively connected.
  • Such electric motor drives are known from the prior art, which can serve for example for driving seat adjusters, window regulators and / or windscreen wipers in motor vehicles.
  • These electric motor drives have an electric motor arranged in a motor housing, which is in operative connection with a transmission arranged in a transmission housing, wherein the motor housing and the gear housing are fastened to each other, for. B. bolted together or riveted.
  • the electric motor can be supplied with a motor current required for operation via a plug.
  • a brush holder component of an electric motor drive which is arranged axially between the electric motor and a transmission housing.
  • the brush holder component radially a plug for the power supply is arranged.
  • On the annular base body of the brush holder component are mounted various electronic components, such as sensor components or suppression components, which improve the EMC radiation.
  • independent claim has the advantage that, by the arrangement of the suppression element radially outside the motor housing, the suppression element is arranged far away from the brushes, which abut the commutator.
  • the suppression element in the connector component, can be connected directly to the conductor strips, which are formed at one end as plug pins and connected at the other end to the brushes.
  • These conductor strips can be advantageously formed as a bending dance parts, where the at least one suppressor can be soldered or welded.
  • the suppression element can be advantageously produced as a so-called SMD component (surface mounted device) on which short connection wires are formed, which can be contacted electrically with the conductor strips.
  • SMD component surface mounted device
  • the suppression element preferably has a capacitor which, for example, provides a capacitance of at least 1 ⁇ .
  • a capacitor which, for example, provides a capacitance of at least 1 ⁇ .
  • the brushes applied to the collector can be particularly well protected against overvoltage.
  • a varistor is part of the at least one suppressive element, wherein with respect
  • the conductor strips are designed as bending stamped parts, two such conductor strips can be inserted into the contacting component, for example, for two carbon brushes. Depending on the design of the contacting component, these stamped parts can either be inserted only into the plug component or else be overmolded by the plastic material of the plug component.
  • the at least one suppression element can be contacted directly to the integrally formed bending stamped parts electrically. For easier accessibility of the welding or soldering electrodes when attaching the connecting wires of the at least one suppressive element are on the bending stamped parts
  • Suppressor are electrically contacted.
  • the plug component is formed as a part together with the contacting component, because then with the assembly of the contacting component axially on the stator at the same time the connector component radially outside of the pole pot is mechanically fixed.
  • the plug component and the contacting component which preferably has a radially extending base plate, extends in the radial direction a web between the contacting component and the plug component.
  • the conductor strips extend over their entire length in a single component, which facilitates their assembly significantly.
  • the plug pins are arranged in a circumferential plug collar, which extends for example in the axial direction parallel to the rotor shaft of the electric motor.
  • the plug component has a receiving space for the at least one interference suppression element, which can be closed with a plug cover.
  • the suppression element can be used very low axial, such that the terminal legs of the suppression element extend in the radial direction to the rotor axis.
  • the plug cover is preferably produced as a component manufactured separately from the plug component, which closes the electrical contacting of the at least one interference suppression element the receiving space for the suppression element after assembly. Since the receiving space, for example, from an axial
  • the receiving space is formed open in the axial direction.
  • the separate plug cover can be plugged in the axial direction of the plug component and be reliably attached, for example by means of a clip or locking connection on the connector component.
  • the receiving space can also be potted with a plastic compound that reliably holds the suppressor elements in the plug component in position even with strong vibrations.
  • the separately formed plug cover can be placed axially after mounting the at least one interfering element in a simple manner to the receiving space.
  • the contacting component is clamped axially between the pole housing and the transmission housing, wherein the contacting component in the radially extending base plate has a central opening through which the armature shaft projects from the rotor into the transmission housing.
  • the inventive connection of the suppression element is particularly advantageous for electrical machines, in which no additional circuit board for electronic components is needed. Therefore, all the necessary electronic components are arranged directly on the contacting component, wherein the Suppressor is arranged as far away from the rotor shaft in the connector component. By this arrangement, if necessary, no additional EMC shielding is necessary, so that the number of components and the
  • the base plate of the contacting component can serve directly for receiving the brushes, which can be designed either as quiver brushes or hammer brushes. Alternatively, the brushes are in a separate
  • Brush element arranged, the brushes are then electrically connected to the contacting component.
  • On the base plate is optionally a
  • the conductor strips extend radially from the base plate of the contacting component via the web into the plug component, and are angled there, so that they extend there as connection pins in the axial direction.
  • a partition wall is preferably arranged which extends transversely to the rotor shaft. The angled conductor strips penetrate this partition, so that the contact lugs for the suppression element are arranged in a defined receiving space.
  • Reception chamber may have in the circumferential direction (tangential direction) formed openings through which the welding or soldering tongs in
  • the plug cover preferably also has a peripheral wall which extends in the axial direction and after its mounting on the plug component covers the tangential openings for the contact tabs.
  • FIG. 1 shows an overall view of an electrical machine according to FIG. 1
  • FIG. 2 shows a contacting component of the electric machine according to FIG. 1.
  • Figure 1 shows an electric machine 10, as for example for adjusting moving parts - preferably windows, sliding roofs or
  • Seat components - is used in the motor vehicle. It is in one
  • Pole housing 12 a stator 13 is disposed within which a rotor 15 is arranged, the rotor shaft 20 extends axially from the pole housing 12 in an axially adjacent transmission housing 14.
  • the drive torque is transmitted from the rotor shaft 20 to a transmission 14 arranged in the gearbox that has an output member 22 which engages in a mechanism not shown, for example, moves parts of a vehicle seat or a window in the motor vehicle.
  • a contacting component 16 is arranged between the pole housing 12 and the gear housing 14, that is connected to the brushes 26 for the electrical contacting of a commutator arranged on the rotor shaft 20.
  • the brushes 26 may be formed as hammer brushes 27 or quiver brushes 28.
  • the contacting component 16 has a plug component 18, which in the radial direction 23 radially outside the pole housing 12 and the
  • Transmission housing 14 is arranged.
  • the connector component 18 is connected by means of a radial web 30 to the contacting component 16.
  • the contacting component 16 has, radially inside the pole housing 12, a base body 32 which has a central recess 34, through which the rotor shaft 20 extends in the axial direction 24.
  • connection pins 42 to electrical contacting of the electric machine 10 are arranged.
  • the plug collar 40 extends with the connection pins 42 in the axial direction 24, so that the corresponding plug can likewise be pushed into the plug collar 40 in the axial direction 24.
  • the base body 32 of the contacting component 16 between two flanges 92, 94 of the pole housing 12 and the gear housing 14 is axially braced, wherein the outer peripheral wall 44 of the body 32 in this embodiment, a portion of the outer wall 45 of the electric Machine 10 forms.
  • FIG. 2 shows a contacting component 16, as can be installed, for example, in the electrical machine 10 according to FIG.
  • the brushes 26 are formed, for example, as hammer brushes 27, which are fastened with their struts 29 on a - for example, separately manufactured - brush element 17.
  • This brush element 17 abuts axially against the contacting component 16, and the brushes 26 are electrically connected to electrical conductor tracks 50 of the contacting component 16 which make electrical contact with the connection pins 42.
  • the brush element 17 may also be made in one piece with the contacting component 16, wherein the brushes 26 may also be designed as quiver brushes 28.
  • the conductor tracks 50 are formed in the embodiment as stamped and bent parts 51, whose first end 52 is connected to a brush 26, and whose opposite end 53 forms the connection pin 42. In this case, the conductor tracks 50 run radially along the radial web 30 out of the pole housing 12 into the plug component 18.
  • an interference suppression element 60 is arranged that is electrically connected to the conductor tracks 50. Since in this embodiment, the complete connector component 18 is arranged radially outside of the pole housing 12, and the suppression element 60 is completely radially outside of the
  • the suppression element 60 is designed here as an SMD component (surface mounted device) that directly electrically with the SMD component (surface mounted device) that directly electrically with the SMD component (surface mounted device)
  • Conductor tracks 50 connected, preferably soldered or welded.
  • Suppressor 60 includes a capacitor 62, which is the electrical machine 10 protects against overvoltages.
  • the capacitor 62 has, for example, a capacity of at least 1 ⁇ (> 10 -6 F) to corresponding
  • the suppression element 60 has a varistor 64, which is arranged together with the capacitor 62 within a common housing 66.
  • the housing 66 is designed, for example, as a ceramic, out of which terminal pins 68 protrude for the electrical contacting of the interference suppression element 60.
  • the connection pins 68 are welded or soldered to the conductor track 50.
  • axial extensions 70 extending in the axial direction 24 are formed on the strip conductors 50, which can be produced, for example, during the punching process of the strip conductors 50 in one process step.
  • the printed conductors 50 extend from them as connection pins 42
  • Plug collar 40 Within the plug collar 40, an intermediate wall 72 is formed through which the conductor tracks 50 are guided into a receiving space 74 for the suppression element 60. This intermediate wall 72 thus separates the connecting pins 42 from the receiving space 74. Within the receiving space 74, the conductor tracks 50 are angled in the radial direction 23 and extend along the radial web 30 to the main body 32, where they are contacted with the brushes 26. In the exemplary embodiment, the receiving space 74 can be closed with a detachable plug cover 76, which completely closes the receiving space 74 after the final assembly of the suppression element 60.
  • the receiving space 74 has a circumferential wall 80, which is approximately formed as an axial extension of the plug collar 40 via the intermediate wall 72 addition.
  • connection pins 68 can press against the interconnects 50.
  • the axial extensions 70 of the conductor track 50 are axially over the intermediate wall 72, the bottom of the
  • Receiving space 74 forms, so that the connecting pins 68 can be connected directly to the axial extensions 70.
  • the plug cover 76 is fixed, for example, by means of a latching connection 84 on the plug component 18.
  • 80 locking elements 85 are formed, for example, on the peripheral wall, which cooperate with counter-latching elements 86 of the plug cover 76.
  • the receiving space 74 also be poured out to protect the suppression element 60 and its electrical connection to the conductor 50 reliably.
  • the suppression element 60, or its housing 66 has seen in the axial direction 24 a
  • connection pins 68 extend in the radial direction 23 to the radial web 30 back.
  • the peripheral wall 80 of the receiving space 74 is
  • the suppression element 60 Corresponding to the floor plan of the suppression element 60 also square or rectangular formed. Apart from the suppression element 60, no further electronic components 88 are arranged inside the plug component 18, but instead they are arranged on the base body 32 of the contacting component 16 radially inside the pole housing 12. In the exemplary embodiment, the electric machine 10 has no electronic board, but the
  • the plug cover 76 can also be released or closed after the axial connection of the gear housing 14 to the pole housing 12 with the plug component 18.
  • the suppression element 60 can also be mounted at the end after the finished assembly of the electric motor with the transmission housing 14.
  • the suppression element 60 can be equipped with the suppression element 60 before the installation of the contacting component 16 into the pole housing 12. It can also be dispensed with a detachable plug cover 76 and the suppression element 60, for example, in the connector component 18 are encapsulated.
  • an electromagnetic shield (EMC) can additionally be realized, which prevents the acting as an antenna traces 50 and / or the connection pins 42 disturbing
  • the plug cover 76 may also be integrally formed with an electrically conductive EMC shield which extends radially into the pole housing 12 inside.
  • an electrically conductive EMC shield which extends radially into the pole housing 12 inside.
  • such a plug cover 76 can be electrically connected to the pole housing 12 and / or a bearing of the rotor shaft 20 via the EMC shield. This can be done by the
  • Commutation generated electromagnetic interference in a cage closed with the pole housing 12 are shielded.
  • the concrete shape shown in the figures of the pole housing 12, the gear housing 14 and the contacting component 16 can be adapted to the corresponding application of the electric machine 10.
  • the base body 32 can accommodate different electronic components 88 depending on the requirement.
  • the configuration of the conductor track 50 can be varied and, for example, encapsulated with the contacting component 16 or clipped into it.
  • the spatial removal of the suppression element 60 of the brush 26 can be dispensed with depending on the application to any additional E MV shield or, for example, the plug cover 76 may be provided with a metallic shield.
  • the plug collar 40 may extend with the connection pins 42 in the radial direction 23 or tangential 25 to the rotor shaft 20.
  • the plug component 18 with the suppression element 60 is always arranged in each case radially outside the pole housing 12, and preferably also radially outside the gear housing 14, despite the integral design with the contacting component 16.
  • the connector component 18 may also be manufactured separately and subsequently connected to the contacting component 16, in particular inserted in the latter.
  • the suppression element 60 is preferably formed as a combination element with the capacitor 62 and the varistor 64.

Landscapes

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

Abstract

L'invention concerne une machine électrique (10), notamment pour l'ajustement de pièces mobiles dans un véhicule à moteur, comprenant un commutateur (55) disposé sur un arbre de rotor (20), ce commutateur pouvant être mis en liaison électroconductrice avec une source de courant au moyen de balais électriques (26), les balais (26) étant mis en liaison électrique avec un composant de mise en contact (16), lequel est disposé sur une extrémité axiale d'une carcasse stator (12) recevant un stator (13), un composant de connexion (18) avec broches de connexion (42) pour les balais (26) étant disposé sur le composant de mise en contact (16), au moins un élément de suppression d'interférence (60) étant disposé dans le composant de connexion (18), ledit élément se trouvant radialement à l'extérieur de la carcasse stator (12).
PCT/EP2017/077285 2016-11-16 2017-10-25 Machine électrique Ceased WO2018091242A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780070985.7A CN109937524B (zh) 2016-11-16 2017-10-25 电机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016222563.4 2016-11-16
DE102016222563.4A DE102016222563A1 (de) 2016-11-16 2016-11-16 Elektrische Maschine

Publications (1)

Publication Number Publication Date
WO2018091242A1 true WO2018091242A1 (fr) 2018-05-24

Family

ID=60293933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/077285 Ceased WO2018091242A1 (fr) 2016-11-16 2017-10-25 Machine électrique

Country Status (3)

Country Link
CN (1) CN109937524B (fr)
DE (1) DE102016222563A1 (fr)
WO (1) WO2018091242A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921538A (zh) * 2019-02-15 2019-06-21 广东维斗东方科技有限公司 汽车座椅用的调角电机
CN114094770A (zh) * 2020-08-24 2022-02-25 罗伯特·博世有限公司 具有接触定子壳体的电子电路板的电机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059915A1 (fr) * 2000-02-12 2001-08-16 Conti Temic Microelectronic Gmbh Unite d'entrainement electrique comprenant un moteur electrique et un module electronique
US20040232784A1 (en) * 2003-05-20 2004-11-25 Siemens Vdo Automotive Corporation EMI suppression in permanent magnet DC motors having PCB outside motor in connector and overmolded
DE102005047428A1 (de) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Elektromotor mit Hammerbürsten
US20070103013A1 (en) * 2005-11-09 2007-05-10 Asmo Co., Ltd. Motor and manufacturing method thereof
DE102010062727A1 (de) 2010-12-09 2012-06-14 Robert Bosch Gmbh Elektromotorantrieb

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004519196A (ja) * 2001-03-17 2004-06-24 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 調節駆動装置、及び調節駆動装置を組み付けるための方法
CN202513718U (zh) * 2012-02-10 2012-10-31 东明机电（深圳）有限公司 装备电容元件的电刷支承装置和直流微电机
DE102012006499A1 (de) * 2012-03-29 2013-10-02 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektromotor
US8888509B2 (en) * 2012-07-13 2014-11-18 Allied Motion Technologies Inc. Electrical connector and method of assembling same
CN203396538U (zh) * 2013-07-26 2014-01-15 无锡盛迈克传感技术有限公司 压力变送器
DE102014210148A1 (de) * 2014-05-27 2015-12-03 Robert Bosch Gmbh Elektrische Maschine mit Bürsten zur Kommutierung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059915A1 (fr) * 2000-02-12 2001-08-16 Conti Temic Microelectronic Gmbh Unite d'entrainement electrique comprenant un moteur electrique et un module electronique
US20040232784A1 (en) * 2003-05-20 2004-11-25 Siemens Vdo Automotive Corporation EMI suppression in permanent magnet DC motors having PCB outside motor in connector and overmolded
DE102005047428A1 (de) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Elektromotor mit Hammerbürsten
US20070103013A1 (en) * 2005-11-09 2007-05-10 Asmo Co., Ltd. Motor and manufacturing method thereof
DE102010062727A1 (de) 2010-12-09 2012-06-14 Robert Bosch Gmbh Elektromotorantrieb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921538A (zh) * 2019-02-15 2019-06-21 广东维斗东方科技有限公司 汽车座椅用的调角电机
CN114094770A (zh) * 2020-08-24 2022-02-25 罗伯特·博世有限公司 具有接触定子壳体的电子电路板的电机

Also Published As

Publication number Publication date
CN109937524A (zh) 2019-06-25
CN109937524B (zh) 2021-11-09
DE102016222563A1 (de) 2018-05-17

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