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WO2003001647A1 - Housing cover for an electric motor, in particular for an electronically-commutated dc motor - Google Patents

Housing cover for an electric motor, in particular for an electronically-commutated dc motor Download PDF

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Publication number
WO2003001647A1
WO2003001647A1 PCT/EP2002/004607 EP0204607W WO03001647A1 WO 2003001647 A1 WO2003001647 A1 WO 2003001647A1 EP 0204607 W EP0204607 W EP 0204607W WO 03001647 A1 WO03001647 A1 WO 03001647A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing cover
component
housing
motor
cover according
Prior art date
Application number
PCT/EP2002/004607
Other languages
German (de)
French (fr)
Inventor
Helmut Ganter
Joachim Heizmann
Oswald Kuwert
Hans-Joachim Wysk
Norbert Wörner
Original Assignee
Minebea Co., Ltd.
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 Minebea Co., Ltd. filed Critical Minebea Co., Ltd.
Publication of WO2003001647A1 publication Critical patent/WO2003001647A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • 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
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/12—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using detecting coils using the machine windings as detecting coil
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/03—Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations

Definitions

  • the invention relates to a housing cover for an electric motor, in particular for an electronically commutated DC motor, for closing the motor housing on an end face of the electric motor, are provided at the winding terminals and signal lines of the electric motor.
  • the motor housing cover according to the invention is in particular designed so that it contains plugs or sockets for connecting the power supply lines and signal lines.
  • the invention is also applicable to any other type of electric motors and generators which must be connected to external power supply lines and / or signal lines.
  • the invention generally relates to brushless DC motors or electronically commutated DC motors, e.g. in the automotive sector for steering systems and other applications, e.g. Fans, air conditioners, coolers, etc. can be used. Since the DC motor is used in the vicinity of the internal combustion engine of the vehicle, it must be resistant to extreme temperatures, humidity, dirt and other environmental influences. In addition, automobile manufacturers generally require a low ohmic resistance of the overall motor and close resistance tolerances of the overall arrangement. DC motors for such applications must be robust and easy to install, and must meet tight manufacturing tolerances.
  • Electronically commutated DC motors generally include a permanent magnet mounted on a rotor shaft and circumferentially divided into a plurality of alternating magnetic poles, and a stator having a plurality of drive windings interacting with the magnetic poles of the permanent magnet.
  • the DC motor is enclosed by a housing which is connected to a mounting flange for mounting the motor.
  • the housing On the front side of the DC motor, at which the winding head and the electrical connections for the supply and control of the motor, the housing is usually completed by a cap.
  • the winding ends of the stator windings are usually performed on the winding head of the stator and bundled out via a cable output from the stator to a control electronics.
  • the winding ends of the stator windings of the electric motor can be connected via relays with supply lines to switch or interrupt them. These relays are then eg on a switching electronics motherboard inside or outside of the motor housing.
  • an electronically commutated DC motor regularly has a sensor board with associated sensor assemblies for detecting the speed, rotational position, etc. of the electric motor.
  • the electric motor has for its supply and control connections for the motor power lines and connectors for signal lines leading from and to an external control circuit.
  • the supply cables with stuffing box connections and seals are led out of the motor, such connections being commercially available eg as stuffing box glands.
  • Other motors use cables with hinged solder lugs, which are soldered or crimped to the cables and bolted in a terminal box. While the first-mentioned solution is relatively expensive, the cables with damaged solder lugs have the disadvantage that the assembly is relatively expensive and the connection of the DC motor, for example, in a motor vehicle requires several steps.
  • the invention has for its object to provide a new construction for an electric motor or generator and in particular a solution for a simple, inexpensive, robust and waterproof plug connection for such a motor, which has a uniform interface for connecting the supply lines for the stator windings and the signal lines of Measuring sensor creates. Special developments for the connectors and connectors in cooperation with connector experts and customers are therefore superfluous.
  • the invention is intended to provide a uniform interface between the terminals and connectors of the user side, for example in a motor vehicle in which the electric motor according to the invention is used, and the motor side, preferably commercially available plug components should be used.
  • the invention provides in claim 1 a housing cover for an electric motor for closing a motor housing on one side of the electric motor are provided at the winding terminals and signal lines of the electric motor, wherein in the housing cover plugs and / or sockets for the supply lines and signal lines are integrated.
  • the housing cover comprises a first component which is connectable to the motor housing, in the form of a lid having at least one opening, and a second component which is engageable with the opening of the first component and in which at least one male / female housing portion is formed ,
  • a connecting device is integrated, which provides a connecting member between the winding terminals and / or signal lines of the electric motor and the plug / socket housing portion of the second component.
  • the first component of the housing cover can be designed so that it cooperates with the motor housing and adapted to this, while the second component according to the requirements and needs of the specific application of the electric motor can be designed.
  • the connecting device serves as a connecting member between the external power and / or signal lines and the internal windings, electrical and electrical components of the electric motor.
  • the connecting device has at least one bus bar in the manner of a punching frame; Preferably, as many busbars as phases of the electric motor, and in particular three busbars are provided. The use of busbars in the connection device ensures that they can cause sufficiently high motor currents to supply the electric motor.
  • the busbars lie substantially in one plane and are each assigned to a winding connection of the stator winding.
  • the busbars are annular and extend to pitch circles with different radii about the motor axis. Due to the annular configuration of the busbars, it is possible to guide the winding ends of the stator windings on the shortest path from the stator to the terminal device, so that all coil ends can be the same length and thus result in the same ohmic winding resistances.
  • the cover-shaped first component of the housing cover is preferably designed such that it closes the motor housing at an end face of the electric motor and encloses a support member which holds the busbars of the connection device in a plane perpendicular to the motor axis.
  • the busbars each have a parallel to the motor axis extending connector portion which projects into the plug / socket housing portion of the second component.
  • the busbars can simultaneously serve as terminals and current conductors for the winding ends of the stator windings and as plug contacts for connecting the electric motor to an external plug.
  • the bus bars may each have a terminal portion for receiving male contacts which are inserted through the male / female portions.
  • the two components of the housing cover and the support member are connected by means of at least one snap connection, so that they can be assembled in the simplest way by nesting the different parts of the housing cover and locked against each other.
  • the inventive design of the housing cover results in a compact, modular multi-part connector housing, which is integrated in the housing cover.
  • the busbars are held in the carrier component at a distance from each other.
  • the support member is preferably formed so that it has recesses in which the busbars are inserted or injected.
  • the busbar 7n can be produced for example in the form of stamped and bent parts from a metal sheet.
  • the first component of the housing cover has two openings, which can be brought into engagement with two separate plug / socket housing sections for the winding terminals of the electric motor and for the signal lines. While the apertures in the first component may be substantially alike, the various male and female housing portions which project outwardly through these apertures may be adapted to the particular requirements of the user.
  • the signal lines within the electric motor can be connected, for example, with connection pins which are guided into an associated plug / socket housing section of the second component of the housing cover.
  • the cover-shaped first component of the housing cover is preferably held on the motor housing via a snap connection and thus also fixes the support component for the busbars and the second component of the housing cover, which defines the plug / socket housing sections.
  • the individual components of the housing cover as stated above, be interconnected by snap connections, but also in any other suitable manner.
  • the housing cover can also be attached in total by means of a center screw on the motor housing.
  • seals are provided between the motor housing and the various components of the housing cover, wherein on the first and / or the second component of the housing cover, one or more sealing rings can be molded.
  • the first and the second component and the carrier component of the housing cover are preferably made by injection molding of plastic.
  • the construction according to the invention results in a two-part housing cover with integrated plugs / sockets for an electric motor with an integrated therein, in a plane lying connection device in the manner of a punching frame, which give a waterproof and dirt-tight connector housing for power and sensor cables.
  • the housing cover according to the invention has the advantage that the plug / sockets can be adapted to different requirements of the respective applications without problems and modified by the second component of the housing cover is modified accordingly.
  • the described construction also provides a stable, compact and modular housing cover with integrated plugs / sockets that can be easily mounted and attached to the electric motor. To seal commercial O-rings, gaskets or molded on the housing cover elastomeric gaskets can be used.
  • the various components of the housing cover can be mounted in the simplest way and in particular brought together by snap connections.
  • the annular busbars of the terminal device have the additional advantage that the coil ends can be of the same length, so that the resistances of the motor windings can be adjusted within narrow tolerances to the same, predetermined values.
  • the integrated in the housing cover Stekker / sockets are completely without additional cables, as they are routed out regularly for example in the so-called pigtail solutions from the engine. This results in addition to a cost savings and the advantage that the assembled motor can be better packaged and easily connected at its point of use.
  • FIG. 1 shows a sectional view through an electric motor with a housing cover according to the invention.
  • Fig. 2 is a sectional view of the housing cover according to the invention.
  • Fig. 3 is a plan view of the housing cover of Fig. 2;
  • Fig. 4 is a perspective view of a busbar of the connecting device of the housing cover according to the invention.
  • Fig. 1 shows a sectional view of an electronically commutated DC motor according to the invention, which can be used in particular in the automotive sector and there, for example, for steering systems.
  • the DC motor generally designated 10, has a stator with a stator lamination stack 12 and stator windings 14. Within the stator, a rotor with a rotor shaft 16, an iron yoke ring 18 which sits on the rotor shaft 16, and a permanent magnet 20, which is segmented or formed as a ring arranged.
  • Stator and rotor are enclosed by a housing 22 which is closed at one end by a mounting flange 24 and at the opposite end by a flange 26, wherein on the side of the mounting flange 24, the rotor shaft 16 is led out and on the side of the flange 26 signal lines 52 and winding terminals 46, 46 'of the motor are.
  • the rotor shaft 16 is fixed in the flanges 24 and 26 via bearings 28 and 30, e.g. Sliding or rolling bearings, in particular ball bearings, rotatably mounted and held.
  • bearings 28 and 30 e.g. Sliding or rolling bearings, in particular ball bearings, rotatably mounted and held.
  • the rotor assembly 16, 18, 20 is additionally housed in a sleeve 32 which, together with the flanges 24, 26, surrounds the rotor assembly and prevents foreign bodies from entering the rotor assembly.
  • a DC motor having a similar construction to the DC motor of FIG. 1 is described in further detail in German patent applications 100 34 302.3 and 100 51 403.0, to which reference is made. It should be emphasized that the housing cover according to the invention can also be used in conjunction with any other known or yet to be developed type of DC motor and in generators. The embodiment shown in Fig. 1 is intended to serve as an example only.
  • a holding device 34 On the rotor shaft 16 of the DC motor shown in Fig. 1, a holding device 34 is mounted on which a magnetic ring 36 is applied.
  • an iron yoke component 42 On the side facing away from the magnet ring 36 rear side of the sensor board 38, an iron yoke component 42 may be located.
  • the Senso ⁇ latine and its function are described in more detail in the parallel patent application "Apparatus for generating a speed-dependent signal for an electric motor, in particular for an electronically commutated DC motor" of the same applicant with the same filing date, to which reference is made.
  • the holding device 34 and the ring magnet 36 arranged thereon rotate together with the rotor shaft 16, while the sensor board 38 with the coils 40, Hall elements etc. arranged thereon is stationary, so that upon rotation of the rotor shaft 16 in consequence of the relative movement between the ring magnet 36 and the sensor board 38 rotational position-related signals in the coils 40, Hall elements or other sensor elements arise.
  • the sensor board 38 may also interact directly with the permanent magnet 20 to produce rotational position related signals.
  • the Senso ⁇ latine 38 is attached to the electric motor facing the inside of a Relaissimilarvorraum 44.
  • Relay 64 and other electrical components of a drive circuit connected to winding ends 46 of the stator windings 14 are mounted in the relay support device 44.
  • the relay support apparatus is described in greater detail in the copending patent application "Relay carrier device for an electric motor, in particular for an electronically commutated DC motor" of the same Applicant with the same filing date to which reference is made.
  • the DC motor shown in Fig. 1 is completed by a housing cover 48 which is described with reference to Figures 2 to 4 in further detail.
  • the housing cover 48 has a first cover-shaped component 60 and a second plug / socket component 50, which is connected to the signal lines 52 and the winding ends 46 of the stator windings 14 via a connection device 54.
  • the relay support device 44 and the housing cover 48 are held in position via a center screw 56, suitable snap connections, gluing, screwing or the like.
  • the housing cover 48 according to the invention can also be used with other types of DC motors or generators, in particular the design of the housing 22 and the relay support device 44, the arrangement and guidance of the various electrical components within the motor housing 22 and the design of the rotor and the Stators can be performed in any conceivable and known manner.
  • the housing cover 48 according to the invention shown in Fig. 2 comprises a first, cover-shaped component 60 and a second, the male / female sections forming component 62, a connecting device 54 and a support member 66, which carries the connecting device 54.
  • a pin 68 is further shown, which is connected to a signal line 52 and projects into a male / female portion of the second component 62.
  • the housing cover 48 is placed with the first component 60 on the housing 22 (FIG. 1) of the electric motor, wherein it comes to lie with a shoulder 70 against the edge of the housing.
  • a seal 72 such as an O-ring, a molded elastomeric seal, a plastic lip or the like may be provided to the housing cover 48 air and liquid-tight to connect to the housing 22 of the motor.
  • latching lugs or latching holes or the like may be provided on the outer edge 74 of the first component 60 of the housing cover 48 in order to produce a latching or snap connection between the housing cover 48 and the motor housing 22.
  • the housing cover 48 and the motor housing 22 may be glued, screwed or otherwise connected.
  • the first, lid-shaped component 60 of the housing cover 48 has in the embodiment shown, two recesses 76, 78 through which male / female sections 80, 82 of the second component 62 of the housing cover 48 are guided to the outside. Between the plug / socket sections 80, 82 of the second component 62 and the first component 60 of the housing cover 48 are two further seals 84, 86, for example in shape of O-rings, provided.
  • the seal may be configured in any other manner known to those skilled in the art.
  • the second component 62 of the housing cover 48 has an inner cylindrical portion 88, the free end is formed with locking lugs 90 which hold the support member 66 as shown in Fig. 2 in position.
  • the support member 66 carries the connecting device 64, as described in more detail with respect to Figs. 3 and 4.
  • the housing cover according to the invention 48 comprising the first component 60, the second component 62, the support member 66 and the connecting device 64 is, as shown in Fig. 1, placed on the housing 22 of the electric motor and in the embodiment shown with the center screw 56th , attached to the relay support device 38.
  • the attachment by means of the center screw 56 creates a permanent and secure connection between the various components of the housing cover 48.
  • the various components, in particular 60 to 66, the housing cover according to the invention also with each other by means of locking or screwing, gluing or The like can be connected and the housing cover 48 screwed together with the motor housing 22, glued, latched or connected in any other way.
  • the Anschlußvomchtung 64 is formed in the preferred embodiment of the invention in the form of bus bars 92, 94, 96, which are shown in Figs. 3 and 4 in more detail.
  • the busbars 92, 94, 96 can be produced in the form of stamped and bent parts, for example from sheet metal, and have a part-ring-shaped conductor track section 98 and a perpendicularly extending tab section 100, which is produced by bending a part of the busbar 92, 94, 96.
  • the bus bars further comprise at least one and preferably a plurality of terminals 102 for the coil ends 46 'of the stator windings, which are similar to solder lugs.
  • the busbars 92, 94, 96 are similarly shaped, wherein their conductor track sections have different radii and the busbars 92, 94, 96 are held with different angular position in the support member 66 such that the tab portions 100th the three busbars 92, 94, 96 are aligned as shown in Fig. 3.
  • the busbars 92, 94, 96 may be glued, screwed, riveted or otherwise connected to the support member 66, it being noted that FIG. 3 is only a schematic illustration showing the support member 66 and the male / female sections 80 , 82 of the second component 62 of the housing cover 48 is not shown in full detail.
  • the support member 66 may also according to the shape of the busbars 92, 94, 96 have shaped recesses in which the busbars are held and isolated from each other.
  • the busbars can be encapsulated in this embodiment in the manufacture of the housing cover 40 of the material of the support member 66.
  • the tab portions 100 of the bus bars 92, 94, 96 protrude into the male / female portions 80 of the second component 62 of the housing cover 48 and, together with the latter, can connect a plug or socket for the connection of supply lines for the Motor windings of the electric motor 10 form.
  • a plug / socket portion 82 is provided for the connection of the signal lines 52 of the electric motor 10, as shown in FIGS. 2 and 3, these signal lines 52 are not performed in the embodiment shown on the connecting device 66.
  • the signal cable 52, which are connected to the Senso ⁇ latine 38 are connected at its free end directly to the terminal pins 68 and led out via the plug / socket portion 82 of the housing cover 48.
  • connection of the signal line 52 can also take place via corresponding, in practice smaller busbars of the connection device.
  • the terminal pins 68 together with the plug / socket portion 82 form on the housing cover 48 a plug or a socket for the connection of signal lines for the electric motor 10th
  • housing cover 48 Due to the modular construction of the housing cover 48 according to the invention, it is possible to design a largely uniform housing cover 48 for various electric motors, which may have a standard configuration of the first, cover-shaped component 60.
  • the second component 62 with the plug / socket portions 80, 82 and, if necessary, the support member 66 of the connecting device 64 can be adapted to the particular customer wishes, wherein the recesses 76, 78 may be configured in the first section 60 such that also differently shaped male / female sections 80, 82 can be led out through this.
  • the construction according to the invention results in a modular housing cover, which can be produced at least partially from standard components for various requirements and applications of the electric motor.
  • the male / female sections 80, 82 for the second component 62 of the housing cover 48 may utilize various standard components which are routed through the apertures 76, 78 in the first component 60.
  • the support member 66 and the connector 64 may be substantially uniform for various electric motors and plug / socket configurations, and may be modified as needed to suit the particular connector / receptacle connector specifications.
  • flat gaskets, molded on the components elastomeric seals or the like can be used.
  • the individual components of the housing cover can be mounted in a simple manner, latched together by the snap connections and secured by the center screw 56 on the electric motor 10.
  • the invention thus provides a modular, sealed against ingress of water and debris housing cover for an electric motor, which can be adapted based on a uniform design principle to different requirements for male / female terminals.

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

Abstract

The invention relates to a housing cover (48) for an electric motor (10), for closing a motor housing (22) on a front face of the electric motor, on which the winding connectors and signal lines for the electric motor are provided. Said housing cover (48) comprises integrated plugs and/or sockets for the supply lines and signal lines. The housing cover (48) comprises a first component (60), which may be connected to the motor housing in the form of a cover with at least one opening and a second component (62), which may be engaged with the opening in the first component (60) and in which at least one plug/socket housing section is embodied. A connector device (54) is integrated in the housing cover (48), which provides a connecting member between the winding connections and/or signal lines on the electric motor and the plug/socket housing section on the second component (50). By means of the above multi-component construction of the housing cover, the first component can be embodied such as to co-operate with and be matched to the motor housing, whilst the second component can be embodied according to the needs and requirements of the specific applications of the electric motor. The invention further relates to an electric motor comprising said housing cover.

Description

Gehäusedeckel für einen Elektromotor, insbesondere für einen elektronisch kommutierten Gleichstrommotor Housing cover for an electric motor, in particular for an electronically commutated DC motor
Die Erfindung betrifft einen Gehäusedeckel für einen Elektromotor, insbesondere für einen elektronisch kommutierten Gleichstrommotor, zum Verschließen des Motorgehäuses an einer Stirnseite des Elektromotors, an der Wicklungsanschlüsse und Signalleitungen des Elektromotors vorgesehen sind. Der erfindungsgemäße Motorgehäusedeckel ist insbesondere so gestaltet, daß er Stecker oder Buchsen zum Anschließen der Stromversorgungsleitungen und Signalleitungen enthält. Die Erfindung ist auch anwendbar auf jede andere Art von elektrischen Motoren und Generatoren, welche mit externen Stromversorgungsleitungen und/oder Signalleitungen verbunden werden müssen.The invention relates to a housing cover for an electric motor, in particular for an electronically commutated DC motor, for closing the motor housing on an end face of the electric motor, are provided at the winding terminals and signal lines of the electric motor. The motor housing cover according to the invention is in particular designed so that it contains plugs or sockets for connecting the power supply lines and signal lines. The invention is also applicable to any other type of electric motors and generators which must be connected to external power supply lines and / or signal lines.
Die Erfindung betrifft im allgemeinen bürstenlose Gleichstrommotoren oder elektronisch kommutierte Gleichstrommotoren, die z.B. im Automobilbereich für Lenksysteme und andere Anwendungen, z.B. Lüfter, Klimaanlagen, Kühler etc. eingesetzt werden. Da der Gleichstrommotor in der Nähe des Verbrennungsmotors des KFZ eingesetzt wird, muß er beständig gegen extreme Temperaturen, Feuchtigkeit, Schmutz und andere Umwelteinflüsse sein. Von den Automobilherstellern werden ferner in der Regel ein niedriger ohmscher Widerstand des Gesamtmotors und enge Widerstandstoleranzen der Gesamtanordnung gefordert. Gleichstrommotoren für solche Anwendungen müssen robust und montagefreundlich sein und enge Fertigungstoleranzen einhalten.The invention generally relates to brushless DC motors or electronically commutated DC motors, e.g. in the automotive sector for steering systems and other applications, e.g. Fans, air conditioners, coolers, etc. can be used. Since the DC motor is used in the vicinity of the internal combustion engine of the vehicle, it must be resistant to extreme temperatures, humidity, dirt and other environmental influences. In addition, automobile manufacturers generally require a low ohmic resistance of the overall motor and close resistance tolerances of the overall arrangement. DC motors for such applications must be robust and easy to install, and must meet tight manufacturing tolerances.
Elektronisch kommutierte Gleichstrommotoren umfassen im allgemeinen einen Permanentmagneten, der auf einer Rotorwelle aufgebracht ist und in Umfangsrichtung in mehrere wechselnde Magnetpole aufgeteilt ist, sowie einen Stator, der mehrere Antriebswicklungen aufweist, die mit den magnetischen Polen des Permanentmagneten in Wechselwirkung stehen. Der Gleichstrommotor ist von einem Gehäuse umschlossen, das mit einem Montageflansch zur Befestigung des Motors verbunden ist. An der Stirnseite des Gleichstrommotors, an der sich der Wickelkopf und die elektrischen Anschlüsse für die Versorgung und Ansteuerung des Motors befinden, ist das Gehäuse üblicherweise durch eine Verschlußkappe abgeschlossen. Bei einem Gleichstrommotor des Standes der Technik werden die Wicklungsenden der Statorwicklungen in der Regel auf dem Wickelkopf des Stators geführt und gebündelt über einen Kabelausgang von dem Stator weg zu einer Ansteuerelektronik geführt. Die Wicklungsenden der Statorwicklungen des Elektromotors können über Relais mit Versorgungsleitungen verbunden werden, um diese zu schalten oder zu unterbrechen. Diese Relais liegen dann z.B. auf einer Schaltelektronik-Hauptplatine innerhalb oder außerhalb des Motorgehäuses.Electronically commutated DC motors generally include a permanent magnet mounted on a rotor shaft and circumferentially divided into a plurality of alternating magnetic poles, and a stator having a plurality of drive windings interacting with the magnetic poles of the permanent magnet. The DC motor is enclosed by a housing which is connected to a mounting flange for mounting the motor. On the front side of the DC motor, at which the winding head and the electrical connections for the supply and control of the motor, the housing is usually completed by a cap. In a DC motor of the prior art, the winding ends of the stator windings are usually performed on the winding head of the stator and bundled out via a cable output from the stator to a control electronics. The winding ends of the stator windings of the electric motor can be connected via relays with supply lines to switch or interrupt them. These relays are then eg on a switching electronics motherboard inside or outside of the motor housing.
Darüber hinaus weist ein elektronisch kommutierter Gleichstrommotor regelmäßig eine Sensorplatine mit zugehörigen Sensorbaugruppen zur Erfassung der Drehzahl, Drehlage etc. des Elektromotors auf.In addition, an electronically commutated DC motor regularly has a sensor board with associated sensor assemblies for detecting the speed, rotational position, etc. of the electric motor.
Der Elektromotor weist zu seiner Versorgung und Ansteuerung Anschlüsse für die Motorstromleitungen sowie Verbinder für Signalleitungen auf, die von und zu einer externen Steuerschaltung führen. Im Stand der Technik gibt es hierfür verschiedene Lösungen. Bei einigen Gleichstrommotoren werden die Versorgungskabel mit Stopfbuchsenanschlüssen und -dich- tungen aus dem Motor herausgeführt, wobei solche Anschlüsse im Handel z.B. als Stopfbuchen- Verschraubungen erhältlich sind. Andere Motoren verwenden Kabel mit angeschlagenen Lötösen, welche an die Kabel gelötet oder gekrimpt werden und in einem Klemmengehäuse verschraubt sind. Während die zuerst genannte Lösung relativ teuer ist, haben die Kabel mit angeschlagenen Lötösen den Nachteil, daß die Montage relativ aufwendig ist und das Anschließen des Gleichstrommotors beispielsweise in einem Kraftfahrzeug mehrere Arbeitsschritte erfordert. Es gibt auch Elektromotoren, deren Kabel umspritzt und zugentlastet im Motorgehäuse angeschlossen und abgedichtet untergebracht sind. Ferner findet man im Stand der Technik Motoren, deren Versorgungskabel mit handelsüblichen Steckern verbunden sind, die an einer Seite des Motorgehäuse angebracht sind. Solche Motoren sind in der Regel kundenspezifische Anfertigungen, die relativ kostenintensiv sind und eine enge Abstimmung mit den Kunden erfordern. Häufig werden bei den Elektromotoren des Standes der Technik Anschlußleitungen als Kabelschwanz direkt aus dem Motor herausgeführt und mit Schrumpfschläuchen oder anderen Isolationsschläuchen ummantelt und mechanisch geschützt. Diese Lösung ist jedoch sowohl bei dem Transport der Motoren als auch bei der Montage nachteilhaft.The electric motor has for its supply and control connections for the motor power lines and connectors for signal lines leading from and to an external control circuit. In the prior art, there are various solutions for this purpose. For some DC motors, the supply cables with stuffing box connections and seals are led out of the motor, such connections being commercially available eg as stuffing box glands. Other motors use cables with hinged solder lugs, which are soldered or crimped to the cables and bolted in a terminal box. While the first-mentioned solution is relatively expensive, the cables with damaged solder lugs have the disadvantage that the assembly is relatively expensive and the connection of the DC motor, for example, in a motor vehicle requires several steps. There are also electric motors whose cables are encapsulated and strain relief housed in the motor housing and housed sealed. Further, in the prior art, motors are found whose supply cables are connected to commercially available plugs mounted on one side of the motor housing. Such motors are typically custom-made, which are relatively expensive and require close customer interaction. Frequently, in the electric motors of the prior art connecting lines are led out as a cable tail directly from the engine and jacketed with heat shrink tubing or other insulating hoses and mechanically protected. However, this solution is disadvantageous both in the transport of the motors and in the assembly.
Der Erfindung liegt die Aufgabe zugrunde, eine neue Bauweise für einen Elektromotor oder Generator und insbesondere eine Lösung für eine einfache, kostengünstige, robuste und wasserdichte Steckerverbindung für einen solchen Motor anzugeben, die eine einheitliche Schnittstelle zum Anschließen der Versorgungsleitungen für die Statorwicklungen und der Signalleitungen der Meßsensorik schafft. Spezialentwicklungen für die Stecker und Verbinder in Zusammenarbeit mit Steckerexperten und Kunden sollen dadurch überflüssig werden. Durch die Erfindung soll eine einheitliche Schnittstelle zwischen den Anschlüssen und Verbindern der Anwenderseite, beispielsweise in einem Kraftfahrzeug, in dem der erfindungsgemäße Elektromotor eingesetzt wird, und der Motorseite geschaffen werden, wobei vorzugsweise handelsübliche Steckerkomponenten verwendbar sein sollen.The invention has for its object to provide a new construction for an electric motor or generator and in particular a solution for a simple, inexpensive, robust and waterproof plug connection for such a motor, which has a uniform interface for connecting the supply lines for the stator windings and the signal lines of Measuring sensor creates. Special developments for the connectors and connectors in cooperation with connector experts and customers are therefore superfluous. The invention is intended to provide a uniform interface between the terminals and connectors of the user side, for example in a motor vehicle in which the electric motor according to the invention is used, and the motor side, preferably commercially available plug components should be used.
Diese Aufgabe wird durch einen Gehäusedeckel für einen Elektromotor mit den Merkmalen von Anspruch 1 sowie durch einen Elektromotor gemäß Anspruch 20 gelöst.This object is achieved by a housing cover for an electric motor with the features of claim 1 and by an electric motor according to claim 20.
Die Erfindung sieht in Anspruch 1 einen Gehäusedeckel für einen Elektromotor vor zum Verschließen eines Motorgehäuses an einer Seite des Elektromotors, an der Wicklungsanschlüsse und Signalleitungen des Elektromotors vorgesehen sind, wobei in den Gehäusedeckel Stecker und/oder Buchsen für die Versorgungsleitungen und Signalleitungen integriert sind. Der Gehäusedeckel umfaßt eine erste Komponente, die mit dem Motorgehäuse verbindbar ist, in Form eines Deckels der wenigstens eine Öffnung aufweist, und eine zweite Komponente, die mit der Öffnung der ersten Komponente in Eingriff bringbar ist und in der wenigstens ein Stecker/Buchsengehäuseabschnitt ausgebildet ist. In den Gehäusedeckel ist eine Anschlußvorrichtung integriert, die ein Verbindungsglied zwischen den Wicklungsanschlüssen und/oder Signalleitungen des Elektromotors und dem Stecker/Buchsengehäuseabschnitt der zweiten Komponente vorsieht. Durch den erfindungsgemäßen mehrteiligen Aufbau des Gehäusedek- kels kann die erste Komponente des Gehäusedeckels so gestaltet werden, daß sie mit dem Motorgehäuse zusammenwirkt und an dieses angepaßt ist, während die zweite Komponente gemäß den Anforderungen und Bedürfnissen der spezifischen Anwendung des Elektromotors gestaltet werden kann. Die Anschlußvorrichtung dient als Verbindungsglied zwischen den externen Strom- und/oder Signalleitungen und den internen Wicklungen, elektrischen und elektrischen Baugruppen des Elektromotors. Die Anschlußvorrichtung weist wenigstens eine Stromschiene nach Art eines Stanzrahmens auf; vorzugsweise sind so viele Stromschienen wie Phasen des Elektromotors, und insbesondere drei Stromschienen vorgesehen. Die Verwendung von Stromschienen in der Anschlußvorrichtung stellt sicher, daß diese ausreichend hohe Motorströme zur Versorgung des Elektromotors führen können. Die Stromschienen liegen im wesentlichen in einer Ebene und sind jeweils einem Wicklungsanschluß der Statorwicklung zugeordnet. Vorzugsweise sind die Stromschienen ringförmig ausgebildet und erstrecken sich auf Teilkreisen mit unterschiedlichen Radien um die Motorachse. Durch die ringförmige Ausgestaltung der Stromschienen ist es möglich, die Wicklungsenden der Statorwicklungen auf kürzestem Wege vom Stator zu der Anschlußvorrichtung zu führen, so daß alle Wicklungsenden gleich lang sein können und sich somit gleiche ohmsche Wicklungswiderstände ergeben.The invention provides in claim 1 a housing cover for an electric motor for closing a motor housing on one side of the electric motor are provided at the winding terminals and signal lines of the electric motor, wherein in the housing cover plugs and / or sockets for the supply lines and signal lines are integrated. The housing cover comprises a first component which is connectable to the motor housing, in the form of a lid having at least one opening, and a second component which is engageable with the opening of the first component and in which at least one male / female housing portion is formed , In the housing cover, a connecting device is integrated, which provides a connecting member between the winding terminals and / or signal lines of the electric motor and the plug / socket housing portion of the second component. Due to the multi-part construction of the housing cover according to the invention, the first component of the housing cover can be designed so that it cooperates with the motor housing and adapted to this, while the second component according to the requirements and needs of the specific application of the electric motor can be designed. The connecting device serves as a connecting member between the external power and / or signal lines and the internal windings, electrical and electrical components of the electric motor. The connecting device has at least one bus bar in the manner of a punching frame; Preferably, as many busbars as phases of the electric motor, and in particular three busbars are provided. The use of busbars in the connection device ensures that they can cause sufficiently high motor currents to supply the electric motor. The busbars lie substantially in one plane and are each assigned to a winding connection of the stator winding. Preferably, the busbars are annular and extend to pitch circles with different radii about the motor axis. Due to the annular configuration of the busbars, it is possible to guide the winding ends of the stator windings on the shortest path from the stator to the terminal device, so that all coil ends can be the same length and thus result in the same ohmic winding resistances.
Die deckelförmige erste Komponente des Gehäusedeckels ist vorzugsweise so ausgestaltet, daß sie das Motorgehäuse an einer Stirnseite des Elektromotors abschließt und ein Trägerbauteil umschließt, welches die Stromschienen der Anschlußvorrichtung in einer zur Motorachse senkrechten Ebene hält. Gemäß einer besonders vorteilhaften Ausführungsform der Erfindung weisen die Stromschienen jeweils einen sich parallel zur Motorachse erstreckenden Steckerabschnitt auf, der in den Stecker/Buchsengehäuseabschnitt der zweiten Komponente hineinragt. Dadurch können die Stromschienen gleichzeitig als Anschlüsse und Stromleiter für die Wicklungsenden der Statorwicklungen und als Steckkontakte zur Verbindung des Elektromotors mit einem externen Stecker dienen. Alternativ können die Stromschienen jeweils einen Anschlußbereich zum Aufnehmen von Steckkontakten haben, welche durch die Stecker/Buchsenabschnitte eingeführt werden.The cover-shaped first component of the housing cover is preferably designed such that it closes the motor housing at an end face of the electric motor and encloses a support member which holds the busbars of the connection device in a plane perpendicular to the motor axis. According to a particularly advantageous embodiment of the invention, the busbars each have a parallel to the motor axis extending connector portion which projects into the plug / socket housing portion of the second component. As a result, the busbars can simultaneously serve as terminals and current conductors for the winding ends of the stator windings and as plug contacts for connecting the electric motor to an external plug. Alternatively, the bus bars may each have a terminal portion for receiving male contacts which are inserted through the male / female portions.
Gemäß einer bevorzugten Ausführungsform der Erfindung sind die beiden Komponenten des Gehäusedeckels und das Trägerbauteil mittels wenigstens einer Schnappverbindung verbunden, so daß sie auf einfachste Weise zusammengebaut werden können, indem die verschiedenen Teile des Gehäusedeckels ineinander gesetzt und gegeneinander verrastet werden. Durch die erfindungsgemäße Gestaltung des Gehäusedeckels ergibt sich ein kompaktes, modulares mehrteiliges Steckergehäuse, das in den Gehäusedeckel integriert ist. Die Stromschienen werden in dem Trägerbauteil mit Abstand zueinander gehalten. Das Trägerbauteil ist vorzugsweise so ausgebildet, daß es Vertiefungen aufweist, in denen die Stromschienen eingelegt oder eingespritzt sind. Die Stromschiene7n können beispielsweise in Form von Stanz-Biegeteilen aus einem Blech hergestellt werden.According to a preferred embodiment of the invention, the two components of the housing cover and the support member are connected by means of at least one snap connection, so that they can be assembled in the simplest way by nesting the different parts of the housing cover and locked against each other. The inventive design of the housing cover results in a compact, modular multi-part connector housing, which is integrated in the housing cover. The busbars are held in the carrier component at a distance from each other. The support member is preferably formed so that it has recesses in which the busbars are inserted or injected. The busbar 7n can be produced for example in the form of stamped and bent parts from a metal sheet.
Vorzugsweise weist die erste Komponente des Gehäusedeckels zwei Öffnungen auf, die mit zwei getrennten Stecker/Buchsengehäuseabschnitten für die Wicklungsanschlüsse des Elektromotors bzw. für die Signalleitungen in Eingriff gebracht werden können. Während die Öffnungen in der ersten Komponente im wesentlichen immer gleich gestaltet sein können, können die verschiedenen Stecker- und Buchsengehäuseabschnitte, die durch diese Öffnungen nach außen vorstehen, an die jeweiligen Anforderungen der Anwender angepaßt werden.Preferably, the first component of the housing cover has two openings, which can be brought into engagement with two separate plug / socket housing sections for the winding terminals of the electric motor and for the signal lines. While the apertures in the first component may be substantially alike, the various male and female housing portions which project outwardly through these apertures may be adapted to the particular requirements of the user.
Die Signalleitungen innerhalb des Elektromotors können beispielsweise mit Anschlußstiften verbunden werden, welche in einen zugehörigen Stecker/Buchsengehäuseabschnitt der zweiten Komponente des Gehäusedeckels geführt werden.The signal lines within the electric motor can be connected, for example, with connection pins which are guided into an associated plug / socket housing section of the second component of the housing cover.
Die deckelförmige erste Komponente des Gehäusedeckels wird an dem Motorgehäuse vorzugsweise über eine Schnappverbindung gehalten und fixiert damit auch das Trägerbauteil für die Stromschienen und die zweite Komponente des Gehäusedeckels, welche die Stek- ker/Buchsengehäuseabschnitte definiert. Zusätzlich können die Einzelkomponenten des Gehäusedeckels, wie oben gesagt, untereinander durch Schnappverbindungen, jedoch auch auf jede andere geeignete Weise miteinander verbunden sein. Der Gehäusedeckel kann ferner zusätzlich insgesamt mittels einer Zentrumsschraube am Motorgehäuse befestigt werden.The cover-shaped first component of the housing cover is preferably held on the motor housing via a snap connection and thus also fixes the support component for the busbars and the second component of the housing cover, which defines the plug / socket housing sections. In addition, the individual components of the housing cover, as stated above, be interconnected by snap connections, but also in any other suitable manner. The housing cover can also be attached in total by means of a center screw on the motor housing.
Vorzugsweise sind zwischen dem Motorgehäuse und den verschiedenen Komponenten des Gehäusedeckels Dichtungen vorgesehen, wobei an der ersten und/oder der zweiten Komponente des Gehäusedeckels ein oder mehrere Dichtungsringe angespritzt sein können. Die erste und die zweite Komponente sowie das Trägerbauteil des Gehäusedeckels sind vorzugsweise durch Spritzgießen aus Kunststoff hergestellt.Preferably, seals are provided between the motor housing and the various components of the housing cover, wherein on the first and / or the second component of the housing cover, one or more sealing rings can be molded. The first and the second component and the carrier component of the housing cover are preferably made by injection molding of plastic.
Durch die erfindungsgemäße Bauweise ergibt sich ein zweiteiliger Gehäusedeckel mit integrierten Steckern/Buchsen für einen Elektromotor mit einer darin integrierten, in einer Ebene liegenden Anschlußvorrichtung nach Art eines Stanzrahmens, die ein wasser- und schmutzdichtes Steckergehäuse für Leistungs- und Sensorleitungen ergeben. Der erfindungsgemäße Gehäusedeckel hat den Vorteil, daß die Stecker/Buchsen an verschiedene Anforderungen der jeweiligen Anwendungen ohne Probleme angepaßt und modifiziert werden können, indem die zweite Komponente des Gehäusedeckels entsprechend modifiziert wird. Die beschriebene Bauweise schafft ferner einen stabilen, kompakten und modularen Gehäusedeckel mit integrierten Steckern/Buchsen, der einfach montiert und an dem Elektromotor befestigt werden kann. Zur Abdichtung können handelsübliche O-Ringe, Flachdichtungen oder am Gehäusedeckel angespritzte Elastomerdichtungen verwendet werden. Die verschiedenen Komponenten des Gehäusedeckels können auf einfachste Weise montiert und insbesondere mittels Schnappverbindungen zusammengebracht werden. Die ringförmigen Stromschienen der Anschlußvorrichtung haben den zusätzlichen Vorteil, daß die Wicklungsenden gleich lang sein können, so daß die Widerstände der Motorwicklungen in engen Toleranzen auf gleiche, vorgegebene Werte eingestellt werden können. Die in den Gehäusedeckel integrierten Stekker/Buchsen kommen vollständig ohne zusätzliche Kabel aus, wie sie beispielsweise bei den sogenannten Pigtail-Lösungen regelmäßig aus dem Motor herausgeführt werden. Dadurch ergibt sich neben einer Kostenersparnis auch der Vorteil, daß der fertig montierte Motor besser verpackt und an seinem Anwendungsort leichter angeschlossen werden kann.The construction according to the invention results in a two-part housing cover with integrated plugs / sockets for an electric motor with an integrated therein, in a plane lying connection device in the manner of a punching frame, which give a waterproof and dirt-tight connector housing for power and sensor cables. The housing cover according to the invention has the advantage that the plug / sockets can be adapted to different requirements of the respective applications without problems and modified by the second component of the housing cover is modified accordingly. The described construction also provides a stable, compact and modular housing cover with integrated plugs / sockets that can be easily mounted and attached to the electric motor. To seal commercial O-rings, gaskets or molded on the housing cover elastomeric gaskets can be used. The various components of the housing cover can be mounted in the simplest way and in particular brought together by snap connections. The annular busbars of the terminal device have the additional advantage that the coil ends can be of the same length, so that the resistances of the motor windings can be adjusted within narrow tolerances to the same, predetermined values. The integrated in the housing cover Stekker / sockets are completely without additional cables, as they are routed out regularly for example in the so-called pigtail solutions from the engine. This results in addition to a cost savings and the advantage that the assembled motor can be better packaged and easily connected at its point of use.
Die Erfindung ist im folgenden anhand bevorzugter Ausführungsformen mit Bezug auf die Zeichnungen näher erläutert. In den Figuren zeigen:The invention is explained below with reference to preferred embodiments with reference to the drawings. In the figures show:
Fig. 1 eine Schnittdarstellung durch einen Elektromotor mit einem Gehäusedeckel gemäß der Erfindung;1 shows a sectional view through an electric motor with a housing cover according to the invention.
Fig. 2 eine Schnittdarstellung des Gehäusedeckels gemäß der Erfindung;Fig. 2 is a sectional view of the housing cover according to the invention;
Fig. 3 eine Draufsicht auf den Gehäusedeckel der Fig. 2; undFig. 3 is a plan view of the housing cover of Fig. 2; and
Fig. 4 eine perspektivische Darstellung einer Stromschiene der Anschlußvorrichtung des erfindungsgemäßen Gehäusedeckels. Fig. 1 zeigt eine Schnittdarstellung eines elektronisch kommutierten Gleichstrommotors gemäß der Erfindung, der insbesondere im Automobilbereich und dort beispielsweise für Lenksysteme eingesetzt werden kann. Der Gleichstrommotor, der allgemein mit 10 bezeichnet ist, weist einen Stator mit einem Statorblechpaket 12 und Statorwicklungen 14 auf. Innerhalb des Stators ist ein Rotor mit einer Rotorwelle 16, einem Eisenrückschlußring 18, der auf der Rotorwelle 16 sitzt, und einem Permanentmagneten 20, welcher segmentiert oder als Ring ausgebildet ist, angeordnet.Fig. 4 is a perspective view of a busbar of the connecting device of the housing cover according to the invention. Fig. 1 shows a sectional view of an electronically commutated DC motor according to the invention, which can be used in particular in the automotive sector and there, for example, for steering systems. The DC motor, generally designated 10, has a stator with a stator lamination stack 12 and stator windings 14. Within the stator, a rotor with a rotor shaft 16, an iron yoke ring 18 which sits on the rotor shaft 16, and a permanent magnet 20, which is segmented or formed as a ring arranged.
Stator und Rotor sind von einem Gehäuse 22 umschlossen, das an einer Stirnseite durch einen Montageflansch 24 und an der gegenüberliegenden Stirnseite durch einen Flansch 26 abgeschlossen ist, wobei auf der Seite des Montageflansches 24 die Rotorwelle 16 herausgeführt ist und auf der Seite des Flansches 26 Signalleitungen 52 und Wicklungsanschlüsse 46, 46' des Motors liegen.Stator and rotor are enclosed by a housing 22 which is closed at one end by a mounting flange 24 and at the opposite end by a flange 26, wherein on the side of the mounting flange 24, the rotor shaft 16 is led out and on the side of the flange 26 signal lines 52 and winding terminals 46, 46 'of the motor are.
Die Rotorwelle 16 ist in den Flanschen 24 und 26 über Lager 28 und 30, z.B. Gleit- oder Wälzlager, insbesondere Kugellager, drehbar gelagert und gehalten.The rotor shaft 16 is fixed in the flanges 24 and 26 via bearings 28 and 30, e.g. Sliding or rolling bearings, in particular ball bearings, rotatably mounted and held.
Bei der gezeigten Ausführungsform ist die Rotorbaugruppe 16, 18, 20 zusätzlich in einer Hülse 32 untergebracht, die zusammen mit den Flanschen 24, 26 die Rotorbaugruppe umschließt und das Eindringen von Fremdkörpern in die Rotorbaugruppe verhindert.In the embodiment shown, the rotor assembly 16, 18, 20 is additionally housed in a sleeve 32 which, together with the flanges 24, 26, surrounds the rotor assembly and prevents foreign bodies from entering the rotor assembly.
Ein Gleichstrommotor, der eine ähnliche Bauweise wie der Gleichstrommotor der Fig. 1 aufweist, ist mit weiteren Einzelheiten in den deutschen Patentanmeldungen 100 34 302.3 und 100 51 403.0 beschrieben, auf die Bezug genommen wird. Es sei betont, daß der erfindungsgemäße Gehäusedeckel auch in Verbindung mit jeder anderen bekannten oder noch zu entwickelnden Art eines Gleichstrommotors sowie in Generatoren eingesetzt werden kann. Die in Fig. 1 dargestellte Ausführungsform soll lediglich als Beispiel dienen.A DC motor having a similar construction to the DC motor of FIG. 1 is described in further detail in German patent applications 100 34 302.3 and 100 51 403.0, to which reference is made. It should be emphasized that the housing cover according to the invention can also be used in conjunction with any other known or yet to be developed type of DC motor and in generators. The embodiment shown in Fig. 1 is intended to serve as an example only.
Auf der Rotorwelle 16 des in Fig. 1 gezeigten Gleichstrommotors ist eine Haltevorrichtung 34 montiert, auf der ein Magnetring 36 aufgebracht ist. Der Haltevorrichtung 34 und dem Magnetring 36 gegenüberliegend und parallel zu diesen ist eine Sensorplatine 38 angeordnet, auf deren dem Magnetring 36 zugewandten Seiten Spulen 40 und Hall-Elemente oder andere Sensorbauteile sitzen. Auf der von dem Magnetring 36 abgewandten Rückseite der Sensorplatine 38 kann sich eine Eisenrückschlußkomponente 42 befinden. Die Sensoφlatine und ihre Funktion sind mit weiteren Einzelheiten in der parallelen Patentanmeldung „Vorrichtung zur Erzeugung eines drehzahlabhängigen Signals für einen Elektromotor, insbesondere für einen elektronisch kommutierten Gleichstrommotor" derselben Anmelderin mit demselben Anmeldetag beschrieben, auf die Bezug genommen wird.On the rotor shaft 16 of the DC motor shown in Fig. 1, a holding device 34 is mounted on which a magnetic ring 36 is applied. The holding device 34 and the magnetic ring 36 opposite and parallel to these, a sensor board 38 is arranged on the magnetic ring 36 facing sides coils 40 and Hall elements or other Sensor components sit. On the side facing away from the magnet ring 36 rear side of the sensor board 38, an iron yoke component 42 may be located. The Sensoφlatine and its function are described in more detail in the parallel patent application "Apparatus for generating a speed-dependent signal for an electric motor, in particular for an electronically commutated DC motor" of the same applicant with the same filing date, to which reference is made.
Wie aus Fig. 1 ersichtlich, drehen sich die Haltevorrichtung 34 und der darauf angeordnete Ringmagnet 36 zusammen mit der Rotorwelle 16, während die Sensorplatine 38 mit den darauf angeordneten Spulen 40, Hall-Elementen etc. feststehend ist, so daß bei Drehung der Rotorwelle 16 in folge der Relativbewegung zwischen dem Ringmagneten 36 und der Sensorplatine 38 drehstellungsbezogene Signale in den Spulen 40, Hall-Elementen oder anderen Sensorelementen entstehen. Der Fachmann wird ohne weiteres erkennen, daß es für die Funktionsweise der Sensorik entscheidend ist, daß die Sensorplatine relativ zu der Haltevorrichtung 34 und den darauf angeordneten Ringmagneten präzise positioniert ist. Bei einer anderen Ausführungsform der Erfindung kann die Sensoφlatine 38 auch unmittelbar mit dem Permanentmagneten 20 zusammenwirken, um drehstellungsbezogene Signale zu erzeugen.As can be seen from FIG. 1, the holding device 34 and the ring magnet 36 arranged thereon rotate together with the rotor shaft 16, while the sensor board 38 with the coils 40, Hall elements etc. arranged thereon is stationary, so that upon rotation of the rotor shaft 16 in consequence of the relative movement between the ring magnet 36 and the sensor board 38 rotational position-related signals in the coils 40, Hall elements or other sensor elements arise. Those skilled in the art will readily appreciate that it is critical to the operation of the sensor that the sensor board is precisely positioned relative to the fixture 34 and the ring magnets disposed thereon. In another embodiment of the invention, the sensor board 38 may also interact directly with the permanent magnet 20 to produce rotational position related signals.
Wie Fig. 1 zeigt, ist die Sensoφlatine 38 an der dem Elektromotor zugewandten Innenseite einer Relaisträgervorrichtung 44 angebracht. In der Relaisträgervorrichtung 44 sind Relais 64 und andere elektrische Komponenten einer Ansteuerschaltung montiert, welche mit Wicklungsenden 46 der Statorwicklungen 14 verbunden ist. Die Relaisträgervorrichtung ist mit weiteren Einzelheiten in der parallelen Patentanmeldung „Relaisträgervorrichtung für einen Elektromotor, insbesondere für einen elektronisch kommutierten Gleichstrommotor" derselben Anmelderin mit demselben Anmeldetag beschrieben, auf die Bezug genommen wird.As shown in Fig. 1, the Sensoφlatine 38 is attached to the electric motor facing the inside of a Relaisträgervorrichtung 44. Relay 64 and other electrical components of a drive circuit connected to winding ends 46 of the stator windings 14 are mounted in the relay support device 44. The relay support apparatus is described in greater detail in the copending patent application "Relay carrier device for an electric motor, in particular for an electronically commutated DC motor" of the same Applicant with the same filing date to which reference is made.
Der in Fig. 1 gezeigte Gleichstrommotor wird durch einen Gehäusedeckel 48 abgeschlossen, der mit Bezug auf die Figuren 2 bis 4 mit weiteren Einzelheiten beschrieben ist. Der Gehäusedeckel 48 weist eine erste deckelförmige Komponente 60 und eine zweite Stecker/Buchsen- Komponente 50 auf, die mit den Signalleitungen 52 und den Wicklungsenden 46 der Statorwicklungen 14 über eine Anschlußvorrichtung 54 verbunden ist. Die Relaisträgervorrichtung 44 und der Gehäusedeckel 48 werden über eine Zentrumsschraube 56, geeignete Schnappverbindungen, Verkleben, Verschrauben oder dergleichen in ihrer Position gehalten.The DC motor shown in Fig. 1 is completed by a housing cover 48 which is described with reference to Figures 2 to 4 in further detail. The housing cover 48 has a first cover-shaped component 60 and a second plug / socket component 50, which is connected to the signal lines 52 and the winding ends 46 of the stator windings 14 via a connection device 54. The relay support device 44 and the housing cover 48 are held in position via a center screw 56, suitable snap connections, gluing, screwing or the like.
Wie erläutert, kann der erfindungsgemäße Gehäusedeckel 48 auch mit anderen Arten von Gleichstrommotoren oder Generatoren eingesetzt werden, wobei insbesondere die Gestaltung des Gehäuses 22 und der Relaisträgervorrichtung 44, die Anordnung und Führung der verschiedenen elektrischen Komponenten innerhalb des Motorgehäuses 22 sowie die Gestaltung des Rotors und des Stators auf jede denkbare und bekannte Weise ausgeführt sein kann.As explained, the housing cover 48 according to the invention can also be used with other types of DC motors or generators, in particular the design of the housing 22 and the relay support device 44, the arrangement and guidance of the various electrical components within the motor housing 22 and the design of the rotor and the Stators can be performed in any conceivable and known manner.
Der in Fig. 2 gezeigte Gehäusedeckel 48 gemäß der Erfindung umfaßt eine erste, deckelförmige Komponente 60 und eine zweite, die Stecker/Buchsenabschnitte bildende Komponente 62, eine Anschlußvorrichtung 54 und ein Trägerbauteil 66, welches die Anschlußvorrichtung 54 trägt. In Fig. 2 ist ferner ein Anschlußstift 68 dargestellt, der mit einer Signalleitung 52 verbunden ist und in einen Stecker/Buchsenabschnitt der zweiten Komponente 62 ragt.The housing cover 48 according to the invention shown in Fig. 2 comprises a first, cover-shaped component 60 and a second, the male / female sections forming component 62, a connecting device 54 and a support member 66, which carries the connecting device 54. In Fig. 2, a pin 68 is further shown, which is connected to a signal line 52 and projects into a male / female portion of the second component 62.
Der erfindungsgemäße Gehäusedeckel 48 wird mit der ersten Komponente 60 auf das Gehäuse 22 (Fig. 1) des Elektromotors aufgesetzt, wobei er mit einer Schulter 70 gegen den Gehäuserand zu liegen kommt. An der Schulter 70 kann eine Dichtung 72, wie ein O-Ring, eine angespritzte Elastomerdichtung, eine Kunststofflippe oder dergleichen vorgesehen sein, um den Gehäusedeckel 48 luft- und flüssigkeitsdicht mit dem Gehäuse 22 des Motors zu verbinden. Zusätzlich können an dem äußeren Rand 74 der ersten Komponente 60 des Gehäusedek- kels 48 Rastnasen oder Rastlöcher oder dergleichen vorgesehen sein, um eine Rast- oder Schnappverbindung zwischen dem Gehäusedeckel 48 und dem Motorgehäuse 22 herzustellen. Alternativ oder zusätzlich können der Gehäusedeckel 48 und das Motorgehäuse 22 verklebt, verschraubt oder auf andere Weise verbunden werden.The housing cover 48 according to the invention is placed with the first component 60 on the housing 22 (FIG. 1) of the electric motor, wherein it comes to lie with a shoulder 70 against the edge of the housing. On the shoulder 70, a seal 72, such as an O-ring, a molded elastomeric seal, a plastic lip or the like may be provided to the housing cover 48 air and liquid-tight to connect to the housing 22 of the motor. In addition, latching lugs or latching holes or the like may be provided on the outer edge 74 of the first component 60 of the housing cover 48 in order to produce a latching or snap connection between the housing cover 48 and the motor housing 22. Alternatively or additionally, the housing cover 48 and the motor housing 22 may be glued, screwed or otherwise connected.
Die erste, deckelförmige Komponente 60 des Gehäusedeckels 48 weist bei der gezeigten Ausführungsform zwei Ausnehmungen 76, 78 auf, durch welche Stecker/Buchsenabschnitte 80, 82 der zweiten Komponente 62 des Gehäusedeckels 48 nach außen geführt sind. Zwischen den Stecker/Buchsenabschnitten 80, 82 der zweiten Komponente 62 und der ersten Komponente 60 des Gehäusedeckels 48 sind zwei weitere Dichtungen 84, 86, beispielsweise in Form von O-Ringen, vorgesehen. Die Dichtung kann auf jede andere, dem Fachmann bekannte Weise ausgestaltet sein.The first, lid-shaped component 60 of the housing cover 48 has in the embodiment shown, two recesses 76, 78 through which male / female sections 80, 82 of the second component 62 of the housing cover 48 are guided to the outside. Between the plug / socket sections 80, 82 of the second component 62 and the first component 60 of the housing cover 48 are two further seals 84, 86, for example in shape of O-rings, provided. The seal may be configured in any other manner known to those skilled in the art.
Die zweite Komponente 62 des Gehäusedeckels 48 weist einen inneren zylindrischen Abschnitt 88 auf, dessen freies Ende mit Rastnasen 90 ausgebildet ist, welche das Trägerbauteil 66 wie in Fig. 2 gezeigt in Position halten. Das Trägerbauteil 66 trägt die Anschlußvorrichtung 64, wie genauer noch in bezug auf die Fig. 3 und 4 beschrieben ist.The second component 62 of the housing cover 48 has an inner cylindrical portion 88, the free end is formed with locking lugs 90 which hold the support member 66 as shown in Fig. 2 in position. The support member 66 carries the connecting device 64, as described in more detail with respect to Figs. 3 and 4.
Der erfindungsgemäße Gehäusedeckel 48, umfassend die erste Komponente 60, die zweite Komponente 62, das Trägerbauteil 66 und die Anschlußvorrichtung 64 wird, wie in Fig. 1 gezeigt, auf das Gehäuse 22 des Elektromotors aufgesetzt und bei der gezeigten Ausführungs- form mit der Zentrumschraube 56, an der Relaisträgervorrichtung 38 befestigt. Die Befestigung mit Hilfe der Zentrumschraube 56 schafft eine dauerhafte und sichere Verbindung zwischen den verschiedenen Komponenten des Gehäusedeckels 48. Bei einer anderen Ausführungsform der Erfindung könnten die verschiedenen Bestandteile, insbesondere 60 bis 66, des erfindungsgemäßen Gehäusedeckels auch miteinander mittels Rast- oder Schraubverbindungen, Verkleben oder dergleichen verbunden werden und der Gehäusedeckel 48 insgesamt mit dem Motorgehäuse 22 verschraubt, verklebt, verrastet oder auf andere Weise verbunden werden.The housing cover according to the invention 48, comprising the first component 60, the second component 62, the support member 66 and the connecting device 64 is, as shown in Fig. 1, placed on the housing 22 of the electric motor and in the embodiment shown with the center screw 56th , attached to the relay support device 38. The attachment by means of the center screw 56 creates a permanent and secure connection between the various components of the housing cover 48. In another embodiment of the invention, the various components, in particular 60 to 66, the housing cover according to the invention also with each other by means of locking or screwing, gluing or The like can be connected and the housing cover 48 screwed together with the motor housing 22, glued, latched or connected in any other way.
Die Anschlußvomchtung 64 ist bei der bevorzugten Ausführungsform der Erfindung in Form von Stromschienen 92, 94, 96 ausgebildet, die in den Fig. 3 und 4 mit weiteren Einzelheiten gezeigt sind. Die Stromschienen 92, 94, 96 können in Form von Stanz-Biegeteilen beispielsweise aus Blech hergestellt werden und weisen einen teilringförmigen Leitungsbahnabschnitt 98 sowie einen sich senkrecht dazu erstreckenden Kontaktfahnenabschnitt 100 auf, der durch Biegen eines Teils der Stromschiene 92, 94, 96 hergestellt wird. Die Stromschienen weisen ferner wenigstens eine und vorzugsweise mehrere Anschlußstellen 102 für die Wicklungsenden 46' der Statorwicklungen auf, welche Lötösen ähnlich sind.The Anschlußvomchtung 64 is formed in the preferred embodiment of the invention in the form of bus bars 92, 94, 96, which are shown in Figs. 3 and 4 in more detail. The busbars 92, 94, 96 can be produced in the form of stamped and bent parts, for example from sheet metal, and have a part-ring-shaped conductor track section 98 and a perpendicularly extending tab section 100, which is produced by bending a part of the busbar 92, 94, 96. The bus bars further comprise at least one and preferably a plurality of terminals 102 for the coil ends 46 'of the stator windings, which are similar to solder lugs.
Die Stromschienen 92, 94, 96 sind ähnlich geformt, wobei ihre Leitungsbahnabschnitte unterschiedliche Radien aufweisen und die Stromschienen 92, 94, 96 mit unterschiedlicher Winkellage in dem Trägerbauteil 66 derart gehalten sind, daß die Kontaktfahnenabschnitte 100 der drei Stromschienen 92, 94, 96 wie in Fig. 3 gezeigt fluchten. Die Stromschienen 92, 94, 96 können mit dem Trägerbauteil 66 verklebt, verschraubt, vernietet oder auf andere Weise verbunden sein, wobei beachtet werden sollte, daß die Fig. 3 nur eine schematische Darstellung ist, welche das Trägerbauteil 66 und die Stecker/Buchsenabschnitte 80, 82 der zweiten Komponente 62 des Gehäusedeckels 48 nicht mit allen Einzelheiten zeigt. Das Trägerbauteil 66 kann auch entsprechend der Gestalt der Stromschienen 92, 94, 96 geformte Vertiefungen aufweisen, in denen die Stromschienen gehalten und voneinander isoliert sind. Die Stromschienen können bei dieser Ausführungsform bei der Herstellung des Gehäusedeckels 40 von dem Material des Trägerbauteils 66 umspritzt werden.The busbars 92, 94, 96 are similarly shaped, wherein their conductor track sections have different radii and the busbars 92, 94, 96 are held with different angular position in the support member 66 such that the tab portions 100th the three busbars 92, 94, 96 are aligned as shown in Fig. 3. The busbars 92, 94, 96 may be glued, screwed, riveted or otherwise connected to the support member 66, it being noted that FIG. 3 is only a schematic illustration showing the support member 66 and the male / female sections 80 , 82 of the second component 62 of the housing cover 48 is not shown in full detail. The support member 66 may also according to the shape of the busbars 92, 94, 96 have shaped recesses in which the busbars are held and isolated from each other. The busbars can be encapsulated in this embodiment in the manufacture of the housing cover 40 of the material of the support member 66.
Wie sich aus den Figuren ergibt, ragen die Kontaktfahnenabschnitte 100 der Stromschienen 92, 94, 96 in die Stecker/Buchsenabschnitte 80 der zweiten Komponente 62 des Gehäusedek- kels 48 und können zusammen mit diesem einen Stecker oder eine Buchse für den Anschluß von Versorgungsleitungen für die Motorwicklungen des Elektromotors 10 bilden. Zusätzlich ist ein Stecker/Buchsenabschnitt 82 für den Anschluß der Signalleitungen 52 des Elektromotors 10 vorgesehen, wie in den Fig. 2 und 3 gezeigt, wobei diese Signalleitungen 52 bei der gezeigten Ausfuhrungsform nicht über die Anschlußvorrichtung 66 geführt sind. Die Signalleitungkabel 52, welche mit der Sensoφlatine 38 verbunden sind, sind an ihrem freien Ende direkt mit den Anschlußstiften 68 verbunden und über den Stecker/Buchsenabschnitt 82 aus dem Gehäusedeckel 48 herausgeführt. Selbstverständlich kann die Verbindung der Signalleitung 52 auch über entsprechende, in der Praxis kleinere Stromschienen der Anschlußvorrichtung erfolgen. Die Anschlußstifte 68 zusammen mit dem Stecker/Buchsenabschnitt 82 bilden an dem Gehäusedeckel 48 einen Stecker oder eine Buchse für den Anschluß von Signalleitungen für den Elektromotor 10.As can be seen from the figures, the tab portions 100 of the bus bars 92, 94, 96 protrude into the male / female portions 80 of the second component 62 of the housing cover 48 and, together with the latter, can connect a plug or socket for the connection of supply lines for the Motor windings of the electric motor 10 form. In addition, a plug / socket portion 82 is provided for the connection of the signal lines 52 of the electric motor 10, as shown in FIGS. 2 and 3, these signal lines 52 are not performed in the embodiment shown on the connecting device 66. The signal cable 52, which are connected to the Sensoφlatine 38 are connected at its free end directly to the terminal pins 68 and led out via the plug / socket portion 82 of the housing cover 48. Of course, the connection of the signal line 52 can also take place via corresponding, in practice smaller busbars of the connection device. The terminal pins 68 together with the plug / socket portion 82 form on the housing cover 48 a plug or a socket for the connection of signal lines for the electric motor 10th
Durch den erfindungsgemäßen modularen Aufbau des Gehäusedeckels 48 ist es möglich, für verschiedene Elektromotoren einen weitgehend einheitlichen Gehäusedeckel 48 zu entwerfen, der eine Standardkonfiguration der ersten, deckeiförmigen Komponente 60 aufweisen kann. Die zweite Komponente 62 mit den Stecker/Buchsenabschnitten 80, 82 und, falls notwendig, das Trägerbauteil 66 der Anschlußvorrichtung 64 können an die jeweiligen Kunden wünsche angepaßt werden, wobei die Ausnehmungen 76, 78 in dem ersten Abschnitt 60 derart gestaltet sein können, daß auch verschieden gestaltete Stecker/Buchsenabschnitte 80, 82 durch diese hinausgeführt werden können. Durch die erfindungsgemäße Bauweise ergibt sich ein modularer Gehäusedeckel, der für verschiedene Anforderungen und Anwendungen des Elektromotors zumindest teilweise aus Standardbauteilen herstellbar ist. Während die erste Komponente 60 des Gehäusedeckels 48 unveränderlich sein kann, können die Stecker/Buchsenabscfinitte 80, 82 für die zweite Komponente 62 des Gehäusedeckels 48 verschiedene Standardbauteile verwendet werden, welche durch die Öffnungen 76, 78 in der ersten Komponente 60 geführt werden. Das Trägerbauteil 66 und die Anschlußvorrichtung 64 können für verschiedene Elektromotoren und Stek- ker/Buchsenkonfigurationen weitgehend einheitlich sein, wobei diese nach Bedarf modifiziert werden können, um sie an die jeweiligen Herstellervorgaben für Stecker/Buchsenanschlüsse anzupassen. Zur Abdichtung der verschiedenen Komponenten gegeneinander können handelsübliche O-Ringe, Flachdichtungen, an den Komponenten angespritzte Elastomerdichtungen oder dergleichen verwendet werden. Die einzelnen Komponenten des Gehäusedeckels können auf einfache Weise montiert, durch die Schnappverbindungen miteinander verrastet und durch die Zentrumsschraube 56 auf dem Elektromotor 10 befestigt werden.Due to the modular construction of the housing cover 48 according to the invention, it is possible to design a largely uniform housing cover 48 for various electric motors, which may have a standard configuration of the first, cover-shaped component 60. The second component 62 with the plug / socket portions 80, 82 and, if necessary, the support member 66 of the connecting device 64 can be adapted to the particular customer wishes, wherein the recesses 76, 78 may be configured in the first section 60 such that also differently shaped male / female sections 80, 82 can be led out through this. The construction according to the invention results in a modular housing cover, which can be produced at least partially from standard components for various requirements and applications of the electric motor. While the first component 60 of the housing cover 48 may be fixed, the male / female sections 80, 82 for the second component 62 of the housing cover 48 may utilize various standard components which are routed through the apertures 76, 78 in the first component 60. The support member 66 and the connector 64 may be substantially uniform for various electric motors and plug / socket configurations, and may be modified as needed to suit the particular connector / receptacle connector specifications. To seal the various components against each other commercial O-rings, flat gaskets, molded on the components elastomeric seals or the like can be used. The individual components of the housing cover can be mounted in a simple manner, latched together by the snap connections and secured by the center screw 56 on the electric motor 10.
Die Erfindung schafft somit einen modularen, gegen Eindringen von Wasser und Fremdkörpern abgedichteten Gehäusedeckel für einen Elektromotor, der auf der Grundlage eines einheitlichen Konstruktionsprinzips an verschiedene Anforderungen für Stecker/Buchsenanschlüsse angepaßt werden kann.The invention thus provides a modular, sealed against ingress of water and debris housing cover for an electric motor, which can be adapted based on a uniform design principle to different requirements for male / female terminals.
Die in der vorstehenden Beschreibung, den Figuren und den Ansprüchen offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Realisierung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein. The features disclosed in the foregoing description, the figures and the claims may be of importance both individually and in any combination for the realization of the invention in its various embodiments.

Claims

Patentansprüche: Claims:
1. Gehäusedeckel für einen Elektromotor (10) zum Verschließen eines Motorgehäuses (22) an einer Seite des Elektromotors, an der Wicklungsanschlüsse (46) und Signalleitungen (52) des Elektromotors (10) vorgesehen sind, wobei der Gehäusedeckel (48) folgende Merkmale aufweist: eine erste Komponente (60), die mit dem Motorgehäuse (22) verbindbar ist, in Form eines Deckels der wenigstens eine Öffnung (76, 78) aufweist, eine zweite Komponente (62), die mit der Öffnung (76, 78) der ersten Komponente (60) in Eingriff bringbar ist und in der wenigstens ein Stecker/Buchsengehäuseabschnitt (80, 82) ausgebildet ist, und eine innerhalb des Gehäusedeckels (48) befindliche Anschlußvorrichtung (64) zum Vorsehen eines Verbindungsgliedes zwischen den Wicklungsanschlüssen (46) und/oder Signalleitungen (52) des Elektromotors (10) und dem Stecker/Buchsengehäuseabschnitt (80, 82) der zweiten Komponente (62).1. Housing cover for an electric motor (10) for closing a motor housing (22) on one side of the electric motor, on the winding connections (46) and signal lines (52) of the electric motor (10) are provided, the housing cover (48) having the following features : a first component (60) which can be connected to the motor housing (22) in the form of a cover which has at least one opening (76, 78), a second component (62) which is connected to the opening (76, 78) first component (60) can be brought into engagement and in which at least one plug / socket housing section (80, 82) is formed, and a connection device (64) located inside the housing cover (48) for providing a connecting element between the winding connections (46) and / or signal lines (52) of the electric motor (10) and the plug / socket housing section (80, 82) of the second component (62).
2. Gehäusedeckel nach Anspruch 1, dadurch gekennzeichnet, daß die Anschluß Vorrichtung (64) wenigstens eine Stromschiene (92, 94, 96) nach Art eines Stanzrahmens umfaßt.2. Housing cover according to claim 1, characterized in that the connecting device (64) comprises at least one busbar (92, 94, 96) in the manner of a stamping frame.
3. Gehäusedeckel nach Anspruch 2, dadurch gekennzeichnet, daß die Anschluß Vorrichtung (64) mehrere im wesentlichen in einer Ebene liegende Stromschienen (92, 94, 96) umfaßt, wobei an jede Stromschiene (92, 94, 96) wenigstens ein Wicklungsanschluß (46) anschließbar ist.3. Housing cover according to claim 2, characterized in that the connecting device (64) comprises a plurality of busbars (92, 94, 96) lying essentially in one plane, at least one winding connection (46) on each busbar (92, 94, 96) ) can be connected.
4. Gehäusedeckel nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die erste Komponente (60) so gestaltet ist, daß sie das Motorgehäuse (22) an einer Stirnseite des Elektromotors (10) abschließt und ein Trägerbauteil (66) umschließt, das die Stromschienen (92, 94, 96) in einer Ebene hält, die sich senkrecht zur Motorachse erstreckt.4. Housing cover according to claim 2 or 3, characterized in that the first component (60) is designed so that it closes the motor housing (22) on an end face of the electric motor (10) and a carrier component (66) which encloses the busbars (92, 94, 96) holds in a plane that extends perpendicular to the motor axis.
5. Gehäusedeckel nach Anspruch 4, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) in wesentlichen ringförmig ausgebildet sind und sich mit unterschiedlichen Radien um die Motorachse erstrecken.5. Housing cover according to claim 4, characterized in that the busbars (92, 94, 96) are substantially annular and extend with different radii around the motor axis.
6. Gehäusedeckel nach Anspruch 5, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) sich in geschlossenen Ringen oder Teilringen um die Motorachse erstrecken. 6. Housing cover according to claim 5, characterized in that the busbars (92, 94, 96) extend in closed rings or partial rings around the motor axis.
7. Gehäusedeckel nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) jeweils einen sich im wesentlichen parallel zur Motorachse erstreckenden Steckerabschnitt (100) aufweisen, der sich wenigstens teilweise in den Stecker/Buchsengehäuseabschnitt (80, 82) der zweiten Komponente (62) erstreckt.7. Housing cover according to one of claims 3 to 6, characterized in that the busbars (92, 94, 96) each have a substantially parallel to the motor axis extending plug section (100) which is at least partially in the plug / socket housing section (80 , 82) of the second component (62).
8. Gehäusedeckel nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) jeweils einen Anschlußbereich zum Aufnehmen von Steckkontakten in den Stecker/Buchsengehäuseabschnitt (80, 82) der zweiten Komponente (62) aufweisen.8. Housing cover according to one of claims 3 to 6, characterized in that the busbars (92, 94, 96) each have a connection area for receiving plug contacts in the plug / socket housing section (80, 82) of the second component (62).
9. Gehäusedeckel nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die erste Komponente (60), die zweite Komponente (62) und das Trägerbauteil (66) mittels wenigstens einer Schnappverbindung verbunden sind.9. Housing cover according to one of claims 4 to 6, characterized in that the first component (60), the second component (62) and the carrier component (66) are connected by means of at least one snap connection.
10. Gehäusedeckel nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) in dem Trägerbauteil (66) mit Abstand zueinander gehalten sind.10. Housing cover according to one of claims 4 to 6, characterized in that the busbars (92, 94, 96) in the carrier component (66) are held at a distance from each other.
11. Gehäusedeckel nach Anspruch 10, dadurch gekennzeichnet, daß die Stromschienen in Vertiefungen in dem Trägerbauteil eingelegt sind oder eingespritzt sind.11. Housing cover according to claim 10, characterized in that the busbars are inserted or injected into depressions in the carrier component.
12. Gehäusedeckel nach einem der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß die Stromschienen (92, 94, 96) in Form von Stanzbiegeteilen hergestellt sind.12. Housing cover according to one of claims 2 to 11, characterized in that the busbars (92, 94, 96) are made in the form of stamped and bent parts.
13. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß an der zweiten Komponente (62) zwei Stecker/Buchsengehäuseabschnitte (80, 82) für die Wicklungsanschlüsse (46) und die Signalleitungen (52) ausgebildet sind, die mit zwei Öffnungen (76, 78) in der ersten Komponente (60) in Eingriff sind.13. Housing cover according to one of the preceding claims, characterized in that on the second component (62) two plug / socket housing sections (80, 82) for the winding connections (46) and the signal lines (52) are formed, which with two openings (76 , 78) are engaged in the first component (60).
14. Gehäusedeckel nach Anspruch 13, dadurch gekennzeichnet, daß die Signalleitungen (52) mit Anschlußstiften (68) verbindbar sind, die sich wenigstens teilweise durch einen der Stecker/Buchsengehäuseabschnitte (78) der zweiten Komponente (62) erstrecken.14. Housing cover according to claim 13, characterized in that the signal lines (52) can be connected to connecting pins (68) which extend at least partially through one of the plug / socket housing sections (78) of the second component (62).
15. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die erste Komponente (60) an dem Motorgehäuse (22) mittels einer Schnappvor- richtung anbringbar ist. 15. Housing cover according to one of the preceding claims, characterized in that the first component (60) on the motor housing (22) can be attached by means of a snap device.
16. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Gehäusedeckel (48) mittels einer Zentrumsschraube (56) an dem Elektromotor (10) befestigbar ist.16. Housing cover according to one of the preceding claims, characterized in that the housing cover (48) can be fastened to the electric motor (10) by means of a center screw (56).
17. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß zwischen dem Motorgehäuse (22) und der ersten Komponente (60) und/oder zwischen der ersten Komponente (60) und der zweiten Komponente (62) mindestens eine Dichtung (72, 84, 86) vorgesehen ist.17. Housing cover according to one of the preceding claims, characterized in that at least one seal (72, 84) between the motor housing (22) and the first component (60) and / or between the first component (60) and the second component (62) , 86) is provided.
18. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß an der ersten und/oder der zweiten Komponente (60, 62) des Gehäusedeckels (48) ein Dichtungsring angespritzt ist.18. Housing cover according to one of the preceding claims, characterized in that a sealing ring is injection molded onto the first and / or the second component (60, 62) of the housing cover (48).
19. Gehäusedeckel nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die erste und/oder die zweite Komponente (60, 62) durch Spritzgießen aus Kunststoff hergestellt sind.19. Housing cover according to one of the preceding claims, characterized in that the first and / or the second component (60, 62) are made by injection molding from plastic.
20. Elektromotor, insbesondere elektronisch kommutierter Gleichstrommotor, mit einem Motorgehäuse (22) und einem Gehäusedeckel (48) nach einem der vorangehenden Ansprüche. 20. Electric motor, in particular electronically commutated DC motor, with a motor housing (22) and a housing cover (48) according to one of the preceding claims.
PCT/EP2002/004607 2001-06-22 2002-04-25 Housing cover for an electric motor, in particular for an electronically-commutated dc motor WO2003001647A1 (en)

Applications Claiming Priority (2)

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DE10130117A DE10130117A1 (en) 2001-06-22 2001-06-22 Housing cover for an electric motor, in particular for an electronically commutated direct current motor
DE10130117.0 2001-06-22

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DE20304998U1 (en) * 2003-03-27 2003-08-21 Minebea Co., Ltd., Miyota, Kitasaku Electric motor with a motor housing and an access part
EP1526628A1 (en) * 2003-10-22 2005-04-27 Siemens Aktiengesellschaft Connection unit for a stator of an electric motor
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DE20304998U1 (en) * 2003-03-27 2003-08-21 Minebea Co., Ltd., Miyota, Kitasaku Electric motor with a motor housing and an access part
EP1526628A1 (en) * 2003-10-22 2005-04-27 Siemens Aktiengesellschaft Connection unit for a stator of an electric motor
US6924570B2 (en) 2003-10-22 2005-08-02 Siemens Aktiengesellschaft Stator for an electric motor
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FR2923951A1 (en) * 2007-11-19 2009-05-22 Sonceboz Automotive Sa ELECTRICAL CONNECTION ASSEMBLY FOR MOTOR WITHOUT BRUSH.
WO2014049218A3 (en) * 2012-09-26 2014-12-31 Sonceboz Automotive Sa Electrical connection assembly for a brushless motor and system comprising such an assembly
WO2014049218A2 (en) 2012-09-26 2014-04-03 Sonceboz Automotive Sa Electrical connection assembly for brushless motor and system comprising such an assembly
FR2996072A1 (en) * 2012-09-26 2014-03-28 Sonceboz Automotive Sa ELECTRICAL CONNECTION ASSEMBLY FOR BRUSHLESS MOTOR
US9812918B2 (en) 2012-09-26 2017-11-07 Sonceboz Automotive Sa Electrical connection assembly for brushless motor and system comprising such an assembly
CN103812262A (en) * 2012-11-13 2014-05-21 博泽沃尔兹堡汽车零部件有限公司 Electric motor, especially steering motor, for motor vehicle
EP3053780A4 (en) * 2013-10-04 2017-06-21 Mitsubishi Electric Corporation Electronic control device and method of manufacturing same, and electric power steering control device
US10285286B2 (en) 2013-10-04 2019-05-07 Mitsubishi Electric Corporation Electronic control device and method of manufacturing same, and electric power steering control device
US10144447B2 (en) 2014-08-15 2018-12-04 Mitsubishi Electric Corporation Control unit and electric power steering device using same, and method for manufacturing control unit
WO2016024358A1 (en) * 2014-08-15 2016-02-18 三菱電機株式会社 Control unit, electric power steering device using control unit, and manufacturing method for control unit
JPWO2016024358A1 (en) * 2014-08-15 2017-04-27 三菱電機株式会社 Control unit, electric power steering apparatus using the same, and method of manufacturing control unit
EP3182563A4 (en) * 2014-08-15 2018-01-17 Mitsubishi Electric Corporation Control unit, electric power steering device using control unit, and manufacturing method for control unit
DE102015110624A1 (en) * 2015-07-01 2017-01-05 Metabowerke Gmbh Stator for an electric motor
CN108886294A (en) * 2016-03-24 2018-11-23 罗伯特·博世有限公司 Motor and be used for method manufacturing of electric machines
WO2017162514A1 (en) * 2016-03-24 2017-09-28 Robert Bosch Gmbh Electric machine and method for producing an electric machine
CN108886294B (en) * 2016-03-24 2021-03-09 罗伯特·博世有限公司 Electric machine and method for producing an electric machine
EP3534505A1 (en) * 2018-03-01 2019-09-04 Otis Elevator Company Electric motor for an elevator system and elevator system comprising such a motor
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US10971967B2 (en) 2018-03-01 2021-04-06 Otis Elevator Company Electric motor for an elevator system and elevator system comprising such a motor
US11632008B2 (en) * 2019-08-29 2023-04-18 Hitachi Metals, Ltd. Arrangement structure of wiring member for rotating electrical machine

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