EP3100339A2 - Moteur électrique à commutation par contacts - Google Patents

Moteur électrique à commutation par contacts

Info

Publication number
EP3100339A2
EP3100339A2 EP14824848.7A EP14824848A EP3100339A2 EP 3100339 A2 EP3100339 A2 EP 3100339A2 EP 14824848 A EP14824848 A EP 14824848A EP 3100339 A2 EP3100339 A2 EP 3100339A2
Authority
EP
European Patent Office
Prior art keywords
zone
contact
positive pole
electric motor
electrically connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14824848.7A
Other languages
German (de)
English (en)
Inventor
Tobias Binder
Marcel FRÖBEL
Bernd Mack
Peter Wieske
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3100339A2 publication Critical patent/EP3100339A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/14—Circuit arrangements for improvement of commutation, e.g. by use of unidirectionally conductive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/04—Connections between commutator segments and windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/02—Connections between slip-rings and windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/08—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having series connection of excitation windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/62—Motors or generators with stationary armatures and rotating excitation field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators
    • H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat commutators

Definitions

  • the present invention relates to an electric motor with contact commutation according to the preamble of claim 1.
  • the present invention also relates to a vehicle component equipped with an adjustable actuator and with an electric motor of the type described above.
  • Electric motors are well known and comprise a stator and a rotatable relative to the stator rotor, wherein the rotor drives or forms a drive shaft of the electric motor, can be tapped via the mechanical drive power to the electric motor.
  • Electric motors are differentiated into DC electric motors, short DC motors, and AC electric motors, short AC motors.
  • internal rotors in which the rotor is arranged concentrically in the stator, and external rotors, in which the stator is arranged concentrically in the rotor are distinguished from one another.
  • contactless commutated electric motors are distinguished from contact-commutated electric motors.
  • a contact commutation takes place via a physical or mechanical contact by means of at least one contact element, which for this purpose bears directly against a grinding contour and thereby generates an electrical connection.
  • the contact element may also be referred to as a "brush".
  • a contact element has a contact body made of carbon.
  • a contactless commutation takes place electronically, that is via a corresponding electronics or electrical circuit. The commutation is needed to generate corresponding rotating magnetic fields with rotating rotor to drive the rotor. For this purpose, provided on the rotor or on the stator electric coils must be switched or turned with respect to their electrical polarity.
  • a commutator is used, which can also be referred to as a collector or commutator.
  • an electric motor which has a stationary stator and a rotatable about a rotation axis arranged rotor, wherein a coil arrangement is provided which has at least one rotor arranged on the electric coil.
  • the known electric motor is equipped with a commutator disc which is rotatably connected to the rotor and which has a plurality of axially contactable contact zones, wherein a contact element arrangement is provided, which is arranged stationary and which has a plurality of contact elements, each of the commutator in the region of the respective Contact the contact zone axially.
  • the individual contact zones are each electrically connected to one of the coils arranged on the rotor side.
  • Another electric motor with commutator is known from DE 26 55 249 A1, wherein also the rotor side arranged coils associated, ring-segment-shaped contact zones are provided, while two contact elements cooperate with the contact zones, to these with a positive terminal or with a Negative pole connection of the electric motor to connect electrically.
  • Electric motors are used in almost all areas of technology.
  • electric motors are also used in vehicles to adjust moving actuators.
  • a throttle device with a throttle valve as an actuator which can be adjusted with the aid of an electric motor in order to introduce the restriction of the fresh air flow in a fresh air system of an internal combustion engine may be mentioned here.
  • flap devices are conceivable in which at least one flap with the aid of an electric motor is adjustable, for example, to influence the inflow of fresh air into a combustion chamber of the internal combustion engine.
  • electric motors can be used in a turbine of a charging device, preferably in an exhaust-gas turbocharger, for example in order to actuate a wastegate valve or to control a variable turbine geometry.
  • the respective electric motor may be exposed to a comparatively large thermal load, which reduces the durability or the expected life of the respective electric motor.
  • the present invention is concerned with the problem of providing for an electric motor of the type mentioned or for a vehicle component equipped therewith an improved embodiment, which is characterized in particular by a simplified structure and / or by a compact design. Furthermore, an increased service life of the electric motor is desired.
  • This problem is solved according to the invention by the subject matter of the independent claim.
  • Advantageous embodiments are the subject of the dependent claims.
  • the invention is based on the general idea of designing the contact zones in each case annular and to contact with separate contact elements.
  • one of the contact zones is designed as an annular positive pole zone, while the associated contact element is designed as a positive pole contact, which is electrically connected to a positive terminal of the electric motor.
  • the positive pole zone of the commutator can be acted upon externally, namely via the positive pole contact with a positive electric potential of the positive terminal.
  • one of the contact zones is designed as an annular negative pole zone, while the associated contact element is designed as a negative pole contact, which is electrically connected to a negative terminal of the electric motor.
  • a negative pole zone is thus formed on the commutator, which can be acted upon externally, namely via the negative pole contact with a negative potential of the negative pole terminal.
  • one of the contact zones is designed as an annular control zone for each coil of the electric motor, which is divided in the circumferential direction into positive pole segments and negative pole segments.
  • the positive pole segments are electrically connected to the positive pole zone, while the negative pole segments are electrically connected to the negative pole zone.
  • the contact element assigned to the respective control zone is designed as a coil contact which is electrically connected to the respective coil. With a rotating commutator disk, the coil contact thus alternately passes over positive pole segments and negative pole segments, whereby the commutation of the coils takes place.
  • the decisive advantage in this case is that the supply of the positive pole segments and the negative pole segments of the respective control zone takes place with positive or negative electrical potential within the commutator disk, so that via the stationary contact elements of the negative pole terminal, the positive pole terminal and the coils also stationary, so the stator, can be arranged.
  • the possibility of arranging the coils stationary or stator the heat management of the electric motor can be improved, since it is particularly possible to dissipate heat from the stator better.
  • the respective coil of the electric motor may comprise a single stator winding or two or more windings, which are then arranged distributed expedient in the circumferential direction.
  • the stationary contact elements which are fastened in particular to the stator, can come into contact with the contact zone in an axially prestressed manner.
  • the contact elements may be designed as a whole spring elements or driven axially by means of spring elements.
  • the contact elements may in the usual way brushes or other abrasive, in particular carbon body, have to generate as low as possible electrical Kon- takttechnik with the mobile or rotating contact zones.
  • the annular contact zones may be arranged concentrically to the axis of rotation at different radii.
  • the contact zones in the circumferential direction are completely encircling, that is to say they have a closed ring shape. This applies at least to the positive pole zone and the negative pole zone.
  • the successive segments in the circumferential direction can be electrically isolated from one another by interruptions. The use of different radii simplifies the arrangement of the contact elements.
  • the positive pole segments and the negative pole segments can be electrically insulated relative to one another in the respective control zone. In this way, an electrical short circuit is prevented within the commutator.
  • the resulting insulation segments may be suitably formed by interruptions of an annular, electrically conductive zone which is segmented by the interruptions and thus forms the positive pole segments and negative pole segments.
  • each such coil is provided with such a control zone, so that each coil contact cooperates only with a single control zone.
  • a contacting unit having the individual contact elements can be realized more easily, which can be mounted in a uniform manner. This allows better control of manufacturing tolerances.
  • At least one such control zone is assigned at least two coils, so that at least two such coil contacts interact with the same control zone.
  • at least two such coil contacts interact with the same control zone.
  • the commutator disk for each positive pole segment and for each negative pole segment may have a connecting web which electrically connects the respective positive pole segment to the positive pole zone or to another positive pole segment of another control zone or the respective negative pole segment with the negative pole zone or electrically connects to another negative pole segment of another control zone.
  • the electrical connections between the positive pole segments with each other or between the plus pole segments and the positive pole zone and between the negative pole segments with one another or between the negative pole segments and the minus pole zone within the commutator disc can be realized.
  • the connecting webs can also be produced on a substrate body by removing an electrically conductive layer or by applying an electrical coating.
  • the individual coils can be better controlled separately or supplied with power.
  • the negative pole segments are electrically connected via a connecting bar with the negative pole, while the negative pole segments of the other control zone (at exactly two control zones) or the other control zones (at three or more control zones) are each electrically connected via a connecting web only with at least one other negative pole segment. This simplifies the realization of the connecting webs on the commutator.
  • a particularly simple structure results in at least two control zones, if only in one of the control zones on the one hand, the positive pole segments each over a connecting web to the positive pole zone are electrically connected and on the other hand, the negative pole segments are electrically connected via a connecting web with the negative pole zone.
  • the positive pole segments of the other control zone (with only two control zones) or the other control zones (in three or more control zones), however, are electrically connected via a connecting web only with at least one other positive pole segment, while the negative pole segments of the other control zone or the other control zones are each electrically connected via a connecting web only with at least one other negative pole segment.
  • a further simplification with regard to the manufacturability of the commutator disk arises when the commutator disk has two axial sides, namely an axial front side and an axial rear side, wherein all contact zones on the front side or on the rear side are arranged concentrically with one another.
  • the negative pole zone and the plus pole zone are then preferably arranged on the respective axial side radially inside or radially outside the at least two control zones. In this case, all control zones are immediately adjacent to each other, which allows a compact structure.
  • the positive pole zone is arranged on one axial side radially between the negative pole zone and the radially next or proximal control zone and is electrically connected on the same axial side via connecting webs to the positive pole segments of this control zone, while the negative pole segments of this control zone are electrically connected via connecting webs to the negative pole zone, which are arranged at least in the region of the positive pole zone on the other axial side.
  • the negative pole zone is arranged on one axial side radially between the positive pole zone and the radially next control zone and on the same axial side via connecting webs is electrically connected to the negative pole segments of this control zone, while the positive pole segments of this control zone are electrically connected via connecting webs with the positive pole zone, which are arranged at least in the region of the negative pole on the other axial side.
  • the commutator can have a substrate body, in particular in the manner of an electrical circuit board, on which the contact zones and / or the above-mentioned connecting webs are formed by ablation of an electrically conductive layer.
  • the removal of the electrically conductive layer or coating can be done for example by etching, milling, laser or the like. In the usual way, the unnecessary areas of the electrically conductive layer or coating are removed, so that the contact zones or the connecting webs remain. It is also conceivable to apply the contact zones on the substrate body by a screen printing method or the like.
  • the commutator disk extends substantially flat and perpendicular to the axis of rotation, so that it has a front side and a rear side axially.
  • all contact zones can now be arranged on the front or on the back of the Meduntatorsay. This simplifies the production of the commutator.
  • at least one contact zone is formed both on the front side and on the rear side.
  • the at least one control zone or all control zones are or are arranged on the front side, while the negative pole zone and the positive pole zone are arranged on the rear side. This may cause the facilitate electrical contacting of the negative pole segments with the negative pole zone on the one hand and the positive pole segments with the plus pole zone on the other hand.
  • all the contact elements may be arranged side by side with respect to the axis of rotation on the same side. This makes it possible in particular to realize a contacting unit in which all contact elements are arranged next to one another and which can be arranged as a unit on the commutator disk.
  • the commutator can be arranged with its rear side on an axial end side of the rotor, while then all the contact zones are provided on the front of the commutator.
  • the commutator disc axially free-standing on a rotor shaft of the rotor.
  • the axial positioning of the contact commutation is largely independent of the rest of the rotor, which in particular can simplify the arrangement of the contact elements.
  • the stator is designed as an external external stator, while the rotor is designed as an internal internal rotor.
  • the electric motor is equipped with a magnet arrangement which has at least one permanent magnet arranged on the rotor or on the stator.
  • a magnet arrangement which has at least one permanent magnet arranged on the rotor or on the stator.
  • At least one permanent magnet is arranged on the rotor, preferably on the inner rotor, while at least one coil is arranged on the stator, preferably on the outer stator.
  • This arrangement of external coils is simplified by the control zones presented here, as well as the positive pole zone and the negative pole zone on the commutator disk, since all connections can be offset via the contact elements to the outside, that is to the stator.
  • An inventive vehicle component is characterized by at least one actuator and an electric motor of the type described above, which is drivingly connected to the respective actuator.
  • the vehicle component is preferably a throttle device of a fresh air system or a flap device of a fresh air system.
  • the vehicle component may be a turbine or an exhaust gas turbocharger, wherein the respective actuator may then be a variable turbine geometry or a wastegate valve. It is also conceivable to actuate an exhaust gas recirculation valve by means of such an electric motor in order to set an exhaust gas recirculation rate.
  • Fig. 1 is a greatly simplified schematic diagram of a schematic
  • Fig. 3 is a greatly simplified axial view of a commutator of the
  • FIGS. 4 to 6 each show a greatly simplified axial section of the electric motor in FIG.
  • Range of the commutator disk, in various embodiments, 7 shows a commutation scheme of the electric motor.
  • an internal combustion engine 1 which is preferably arranged in a vehicle, an engine block 2 with a plurality of combustion chambers 3, a fresh air system 4 for supplying the combustion chambers 3 with fresh air and an exhaust system 5 for discharging exhaust gas from the combustion chambers 3.
  • a flap device 6 On the engine block 2, a flap device 6 may be arranged.
  • the individual flaps 7 are actuators which can be operated or adjusted by means of an electric motor 8.
  • the fresh air system 4 in the example also includes a throttle device 9, the throttle valve 10 can be adjusted by means of another electric motor 8.
  • the internal combustion engine 1 is also designed here as a supercharged internal combustion engine 1.
  • the internal combustion engine 1 is equipped for this purpose with an exhaust gas turbocharger 1 1, which comprises a compressor 12 integrated into the fresh air system 4 and a turbine 13 integrated in the exhaust system 5, which are connected to one another via a common drive shaft 14.
  • the turbine 13 may be equipped with a variable turbine geometry 15, with the aid of which a flow direction and a flow velocity of the exhaust gas with respect to a turbine wheel, not shown here, of the turbine 13 can be changed.
  • an electric motor 8 can again be provided.
  • the turbine 13 is also equipped here with a wastegate valve 16, by means of which a bypass 17 for bypassing the turbine wheel can be controlled.
  • an electric motor 8 may again be provided.
  • a variable turbine geometry 15 and a wastegate valve 16 are used only as an alternative; In principle, however, a cumulative application is also conceivable.
  • the electric motor 8 can be designed as an internal rotor and accordingly have an external stator 18 and an internal rotor 19.
  • the rotor 19 is mounted rotatably relative to the stator 18 about a rotation axis R and is provided with a magnet arrangement 20 fixedly arranged thereon, which comprises at least one permanent magnet 21.
  • the stator 18 is equipped with a coil assembly 22 comprising at least one electrical coil 23.
  • the electric motor 8 is preferably a DC motor.
  • the coil assembly 22 comprises a total of three electric coils 23, which are also designated in detail with Li, L 2 and L 3 .
  • each coil Li, L 2 , L 3 is formed by two windings 24, which are connected to each other in a suitable manner via a corresponding connecting line 25.
  • commutator 26 For commutation of the coils 23 of the electric motor 8 presented here is equipped with a commutator 26 shown in Figures 3 to 6.
  • the commutator 26 is rotatably connected to the rotor 19 so that it also rotates about the axis of rotation R during operation of the electric motor 8.
  • the commutator 26 is expedient flat and flat, wherein it extends perpendicular to the axis of rotation R.
  • the commutator disk 26 has a plurality of contact zones 27 which are axially contactable.
  • the contact zones 27 are formed by means of an electrically conductive material.
  • a contact element arrangement 28 is provided, which is arranged stationarily, preferably on the stator 18, and which has a plurality of contact elements 29.
  • the contact elements 29 are arranged so that they contact the commutator 26 26 each axially in the region of the contact zones.
  • exactly one contact element 29 is provided for each contact zone 27, so that each contact zone 27 exactly a contact element 29 is assigned which only contacts the associated contact zone 27 in order to establish an electrical connection.
  • a plurality of contact elements interact with the same contact zone 27.
  • the contact zones 27 are configured in each case as rings which are arranged concentrically to the axis of rotation R and lie at different radii relative to the axis of rotation R.
  • One of the contact zones 27, here the radially innermost contact zone 27, is designed as an annular negative pole zone 30. It extends in the circumferential direction without interruption, which is indicated in Fig. 3 by a double arrow and designated 33.
  • the associated contact element 29 is designed as a negative pole contact 31 which is electrically connected to a negative pole terminal 32 of the electric motor 8. During operation of the electric motor 8, a negative electrical potential is thus present at the negative pole zone 30.
  • Another contact zone 27, here the contact zone 27 which is radially adjacent to the negative pole zone 30, is designed as an annular positive pole zone 32.
  • the contact element 29 belonging to the positive pole zone 32 is configured as a positive pole contact 34 and is electrically connected to a positive pole connection 35 of the electric motor 8. During operation of the electric motor 8, there is thus a positive electrical potential at the positive pole zone 32.
  • the remaining contact zones 27 are configured in each case as an annular control zone 36 and are arranged in each case radially outside the minus-pole zone 30 and the plus-pole zone 32. In the preferred example shown, a separate control zone 36 is provided per coil 23. Accordingly, exactly three control zones 36 are also provided here.
  • Each control zone 36 is assigned a designed as a coil contact 37 contact element 29, wherein each coil contact 37 is electrically connected to exactly one of the coils 23, which is indicated in Fig.
  • the radially adjacent thereto middle control zone 36 is then associated with the second coil L 2 .
  • the outer distal or outer control zone 36 is then associated with the third coil L 3 .
  • control zones 36 are present than coil contacts 37, so that two or more coil contacts 37 then interact with one and the same control zone 36, wherein the tapping points or contact points must then be offset relative to one another in the circumferential direction 33 ,
  • the respective control zone 36 is segmented in the circumferential direction 33, such that in the circumferential direction 33 successive positive pole segments 38 and negative pole segments 39 are provided.
  • the positive pole segments 38 are electrically connected to the positive pole zone 32 in connection.
  • the negative terminal segments 39 are electrically connected to the negative pole zone 30.
  • the negative pole segments 39 are electrically insulated from one another with respect to the positive pole segments 38. Such isolations can be realized for example by interruptions of the respective control zone 36.
  • the commutator disk 26 has a positive pole connecting web 40 for each positive pole segment 38 and a negative pole connecting web 41 for each negative pole segment 39.
  • the positive pole segments 38 are electrically connected via the positive pole connecting webs 40 each with the positive pole zone 32.
  • the positive pole segments 38 are connected across the positive pole Connecting webs 40 electrically connected to the positive pole segments 38 of the first control zone 36 and thus ultimately electrically connected to the positive pole zone 32.
  • the positive pole segments 38 are electrically connected via the positive pole connecting webs 40 to the positive pole segments 38 of the second control zone 36, whereby they are ultimately connected to the positive pole zone 32.
  • the negative pole segments 39 of the first control zone 36 are electrically connected via the negative pole connecting webs 41 to the negative pole zone 30.
  • the associated negative pole connecting webs 41 are shown in FIG. 3 with broken lines in order to indicate that these negative pole connecting webs 41 are located on a rear side (43) of the commutator disk 26 facing away from the observer. All other connecting webs 40, 41 are located on the front side (42) of the commutator disk 26 facing the observer.
  • the rear negative pole connecting webs 41 can pass through the body of the commutator disk 26 to the minus pole zone 30 or to the respective negative pole segment 39 be electrically connected.
  • the negative pole segments 39 of the second control zone 36 are electrically connected via the negative pole connecting webs 41 to the negative pole segments 39 of the first control zone 36.
  • the negative pole segments 39 of the third control zone 36 are electrically connected via the negative pole connecting webs 41 to the negative pole segments 39 of the second control zone 36.
  • the commutator disk 26 can, for example, have a substrate body in the manner of an electrical circuit board, onto which the contact zones 27 and the connecting webs 40, 41 are printed or which has an electrically conductive coating, eg made of aluminum or copper, so that the contact zones 27 and the connecting webs 40, 41 are formed by ablation, for example by etching, milling, lasers and the like.
  • an electrically conductive coating eg made of aluminum or copper
  • the commutator disk 26 has a front side 42 and a rear side 43 in the axial direction defined by the axis of rotation R.
  • the individual contact zones 27 are indicated in the sectional views of Figures 4 to 6 by short lines.
  • the cooperating contact elements 29 are indicated by triangular symbols. The assignment of the individual contact elements 29 is indicated by Li to L 3 for the individual coils 23 and with a plus symbol "+" for the positive terminal 35 and a minus symbol "-" for the negative terminal 32.
  • the contact zones 27 are arranged on both sides of the commutator disk 26, the embodiment shown here is preferred, in which the three control zones 27 are arranged on the front side 42, while the minus pole zone 30 and the plus pole zone 32 the back 43 are arranged.
  • FIG. 5 shows an embodiment in which some contact elements 29 are arranged above and some contact elements 29 below the axis of rotation R. Suitably, they are arranged opposite each other, in particular diametrically opposite each other.
  • the commutator disk 26 with its rear side 43 is arranged directly on an axial end face 44 of the rotor 19. All contact zones 29 are then arranged on the front side 42.
  • FIG. 6 shows an embodiment in which the commutator disk 26 is arranged axially free-standing on a rotor shaft 45 of the rotor 19.
  • the positive pole segments 38 and the negative pole segments 39 in the individual control zones 36 are dimensioned correspondingly in the circumferential direction, wherein the segments 38, 39 of the radially adjacent control zones 36 are also offset correspondingly in the circumferential direction 33 in such a way that the coil contacts 37, as shown in the example of FIG. 3, are in contact with the contact zones 27 at the same circumferential position.
  • these contact points lie on a straight line passing through the axis of rotation R. It is also possible to distribute the contact points of the coil contacts 37 in the circumferential direction 33 in principle arbitrary; the arrangement of the segments 38, 39 of the individual control zones 36 is then adapted accordingly.
  • the coil contacts 37 can also be selectively distributed in the circumferential direction 33 with respect to their contact points, that in the control zones 36 on the one hand the positive pole segments 38 and on the other hand the negative pole segments 39 each radially aligned. With such an arrangement, it is then also possible to assign two or more coil contacts 37 to a single control zone 36, so that the number of control zones can be correspondingly reduced. In extreme cases, a single control zone 36 may be sufficient, with which all coil contacts 37 in the circumferential direction 33 are distributed in contact.
  • the Konnnianssismesschenna reproduced in Fig. 7 results from the respective desired Konnnnuttechnik the electric motor 8. In the commutation scheme are shown in FIG.
  • insulating sections 46 are provided between two adjacent segments 38, 39 of different polarity in order to electrically isolate adjacent segments 38, 39 of different polarity or different electrical potential from each other.
  • An arrow 47 indicates the stationary position of the contact element arrangement 28.
  • the first coil contact 37 connected to the first coil Li contacts a positive pole segment 38.
  • the second coil contact 37 connected to the second coil L 2 is in contact with an insulator 46.
  • the third coil contact 37 connected to the third coil L 3 is finally contacted with a negative pole segment 39.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

La présente invention concerne un moteur électrique (8) équipé d'un disque de collecteur (26) qui comporte des zones de contact (27) servant à établir un contact électrique et mécanique avec des éléments de contact (29) correspondants. Pour simplifier la structure, une des zones de contact (27) est réalisée sous la forme d'une zone de pôle positif (32) annulaire, tandis qu'un des éléments de contact (29) est réalisé sous la forme d'un contact de pôle positif (34) qui est en contact avec la zone de pôle positif (32) et qui est relié électriquement à une borne de pôle positif (35) du moteur électrique (8); une des zones de contact (27) est réalisée sous la forme d'une zone de pôle négatif (30) annulaire tandis qu'un des éléments de contact (29) est réalisé sous la forme d'un contact de pôle négatif (31) qui est en contact avec la zone de pôle négatif (30) et qui est relié électriquement à une borne de pôle négatif (32) du moteur électrique (8); l'une au moins des zones de contact (27) est réalisée sous la forme d'une zone de commande (36) annulaire qui est segmentée dans le sens de la circonférence (33) en segments de pôle positif (38) reliés électriquement à la zone de pôle positif (32) et en segments de pôle négatif (39) reliés électriquement à la zone de pôle négatif (30) électrique; et, pour chaque bobine (23), un des éléments de contact (29) est réalisé sous la forme d'un contact de bobine (37) qui est en contact avec la zone de commande (36) respective et qui est relié électriquement à une telle bobine (23).
EP14824848.7A 2014-01-27 2014-12-29 Moteur électrique à commutation par contacts Withdrawn EP3100339A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014201379.8A DE102014201379A1 (de) 2014-01-27 2014-01-27 Kontaktkommutierter Elektromotor
PCT/EP2014/079389 WO2015110246A2 (fr) 2014-01-27 2014-12-29 Moteur électrique à commutation par contacts

Publications (1)

Publication Number Publication Date
EP3100339A2 true EP3100339A2 (fr) 2016-12-07

Family

ID=52302212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14824848.7A Withdrawn EP3100339A2 (fr) 2014-01-27 2014-12-29 Moteur électrique à commutation par contacts

Country Status (5)

Country Link
EP (1) EP3100339A2 (fr)
JP (1) JP6507170B2 (fr)
CN (1) CN106416016B (fr)
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JP6507170B2 (ja) 2019-04-24
JP2017504297A (ja) 2017-02-02
WO2015110246A2 (fr) 2015-07-30
CN106416016B (zh) 2019-03-26
WO2015110246A3 (fr) 2015-12-17
CN106416016A (zh) 2017-02-15
DE102014201379A1 (de) 2015-07-30

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