EP1891713A1 - Plankommutator und verfahren zur herstellung eines plankommutators - Google Patents
Plankommutator und verfahren zur herstellung eines plankommutatorsInfo
- Publication number
- EP1891713A1 EP1891713A1 EP06754290A EP06754290A EP1891713A1 EP 1891713 A1 EP1891713 A1 EP 1891713A1 EP 06754290 A EP06754290 A EP 06754290A EP 06754290 A EP06754290 A EP 06754290A EP 1891713 A1 EP1891713 A1 EP 1891713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- support body
- tread
- connection
- terminal
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/06—Manufacture of commutators
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
- Y10T29/49011—Commutator or slip ring assembly
Definitions
- the invention relates to a plan commutator, in particular a coal plan plug-in commutator, and a method for producing such a plan commutator.
- plan commutators are used for example for fuel pumps.
- the usually made of copper or copper-containing electrically conductive terminal segments in this medium do not have the required for continuous operation resistance.
- tread segments are used for the tread of the plan commutator, which have a higher resistance to the medium surrounding the Plankommutator.
- plan commutators are known, for example, from WO 97/03486 A1.
- Formed connecting segments forming conductor blank For this purpose, the conductor blank is inserted into a corresponding shape and formed in the mold with a mass forming the support body. Subsequently, a carbon ring disk forming the tread segments is applied to the Soldered conductor blank and then separated into tread segments. Plankommutators produced in this way meet high quality requirements, but the production process is correspondingly expensive and therefore expensive.
- a method for producing a flat commutator in which the exposed by the parts of the carrier body surfaces of the metallic segment support members are coated with a against the environment, for example, against fuels, resistant layer.
- the terminal segments have a terminal portion for connection of one end of a coil winding and a contact portion for electrical connection with the
- connection segment on After insertion of the connection segments in the support body, the connection sections are bent at right angles and parallel to the plane of the tread. Subsequently, a carbon-containing disc is applied to the bent connection sections, which is separated by separating cuts and thereby forms the tread segments.
- the carbonaceous disk is composed of two layers which are joined together by cold pressing.
- the first layer associated with the terminal segments contains a binder. When applied to the terminal segments under the action of heat, the binder softens and the first layer flows with simultaneous pressure in openings of the terminal segments and the support body and anchored thereby the carbon-containing disc on the support body.
- the invention is therefore based on the problem to provide a plan commutator and an associated manufacturing method, which overcome the disadvantages of the prior art, in particular are less expensive and yet ensure sufficient resistance of the manufactured commutators in a reaction-promoting environment.
- plan commutators in contrast to so-called drum commutators, the running surface for the commutator brushes is formed by a flat end face. Accordingly, the structural design of plan commutators differs from the construction of drum commutators.
- the planar commutator according to the invention has a support body made of an electrically insulating material, for example of a thermosetting plastic. On the support body, a plurality of terminal segments are arranged, which are provided for the connection of at least one end of a coil winding, for example a rotor of an electric motor, and which consist of a highly electrically conductive material, for example copper or a copper alloy. To increase the resistance of the tread of the
- the support body openings in which the
- Terminal segments are inserted.
- the support body is made as a separate part before inserting the terminal segments with its the openings for receiving the terminal segments having shape.
- the support body can be produced in a simplified manner with high dimensional accuracy, for example also by an injection molding process.
- the production-technically very complicated encapsulation of the connection segments eliminates the formation of the support body.
- the support body is preferably formed in one piece and forms in particular the openings for the insertion of the terminal segments, the contact surfaces for the prefabricated tread segments, and contact surfaces for those portions of the terminal segments on which the coil winding is connected in one piece.
- the connection segments are also preferably formed in one piece; in particular, the connection segments form both the contact surfaces facing the tread segments and the contact surfaces for the coil winding in one piece.
- connection segments can be inserted into the support body, numerous advantages are guaranteed. This eliminates the need to manufacture a conductor blank forming the terminal segments. In addition, such a conductor blank must not be fed to an injection molding machine for injection molding of the support body. Furthermore, it is advantageous that the connection segments are no longer over the entire surface surrounded by the supporting body forming the molding material, so that the different thermal expansion coefficients of the material of the connection segments and the material of the support body do not cause thermally induced stresses more.
- the tread segments are mechanically fixed and electrically connected to the terminal segments. This compound can be done for example by a soft solder, a braze or an adhesive.
- the tread segments can be individually set to the respective terminal segments, or be set in a composite, for example in the form of a disc or washer on the terminal segments and then separated by separating cuts. Due to the mechanically fixed connection with the tread segments, the connection segments are mechanically fixed to the plan commutator.
- connection segments may also already be fixed solely on the basis of a clamping effect of the support body, wherein this clamping effect may be caused by an at least section-wise excess of the support body with respect to the connection segment. If necessary, can also be improved by an additional connection means, for example by an adhesive, the determination of the connection segments on the support body. In any case, the definition of the segments on the support body is at least further improved by the connection of the tread segments with the connection segments in the direction of the stress during operation of the planar commutator.
- the tread segments have opposite the terminal segments, in particular with respect to the tread segments facing the end of the terminal segments, an obliquely or transversely to the insertion extending supernatant, by means of which the composite of tread segment and terminal segment is anchored to the support body. As a result, the composite is in particular secured against displacement in the insertion direction.
- the projection can also be formed, at least partially, by a connection means connecting the tread segment to the connection segment, for example by a solder.
- a connection means connecting the tread segment to the connection segment, for example by a solder.
- the tread segments lie in the region of the projection at least in sections on the support body, so that the support body itself forms an abutment for the axial fixation of the connection segments.
- the openings in the support body for receiving the connection segments extend at least partially parallel to an axis of the support body, preferably the openings extend parallel to a longitudinal axis of the support body, which preferably coincides with the axis of rotation of the planar commutator.
- the openings in the support body are open at least in sections to the circumferential surface of the planar commutator, in particular in the section in which the connection segment forms a preferably radially projecting connection means for connecting the coil winding.
- the openings for receiving the connection segments extend in the radial or tangential direction with respect to the support body.
- connection means for example a solder or an adhesive
- the connecting means preferably already alone, in particular in conjunction with the associated tread segment forms an anchoring of the connection segment to the support body.
- connection segments In the region of the transition from the terminal segment to the associated tread segment widens in a funnel shape due to the effective surface tension, as is the case for example with solder and adhesive joints. This also reliably prevents the entry of the medium surrounding the planar commutator into the region of the connection segments, thereby protecting the connection segments against corrosion.
- the connecting means not only axially engage the terminal segment, but also at least partially surround this in the circumferential direction, whereby the joining action is improved.
- the connecting means itself form a kind of tie rod and secure the connection segment against axial displacement.
- the terminal segments have a head portion and a foot portion, which are connected to each other via a connecting portion.
- the associated opening in the support body has at least partially an excess, for example, such that between the Head portion and the foot portion lying part of the support body is placed under compressive stress, and / or - depending on the dimensions of the terminal segments - the connecting portion of the terminal segment is placed under tension.
- the voltage applied to the support body usually opposing surfaces of the head portion and the foot portion include an angle of less than 90 °, because then the stresses occurring in the support body due to the clamping of the terminal segment largely compensate, in particular these stresses substantially in the radial direction with respect to the longitudinal axis of the Plankommutators, and thereby the Plankommutator even in continuous operation under high stress has a stable support body.
- connection segments are designed as identical parts, in particular as punched or impact parts, or they are made in the simplest case by cutting to length of a corresponding profile.
- the vote of the geometric dimensions of the connection segment with respect to the associated opening in the support body is particularly advantageous that a fine adjustment of these dimensions of the connection segment can be brought about with little effort by adjusting the punch. As a result, the requirements for dimensional accuracy of the support body are reduced, which significantly simplifies its manufacturing process.
- the terminal segments may have a coating at least in the region of the connection with the tread segments.
- the material of the coating is preferably adapted to the material of the connecting means, for example, the connection segments in the case a solder joint coated at least in the region of the connection with the tread segments, generally over the entire surface, with tin or a material corresponding to the solder layer.
- the tread segments are made of a material which has a higher resistance to the medium surrounding the Plankommutator than the terminal segments.
- the material of the tread segments is carbonaceous, wherein both a so-called soft carbon and a hard coal can be used.
- the tread segments preferably have a coating on their portions facing the connection segments, by means of which the connection is further improved.
- the invention also relates to a method for producing a planar commutator, in which the support body is made of an electrically insulating material separately, as well as the terminal segments, which are inserted into the openings of the support body. Subsequently, the setting of the tread segments, which form the tread of the flat commutator.
- the tread segments can already be isolated and each individually fixed to the associated terminal segment, or in the composite, for example in the form of an annular disc, are fixed to the terminal segments and then separated by separating cuts.
- FIG. 2 shows a view of a cross section through a flat commutator according to the invention
- FIG. 3 shows a plan view of the flat commutator
- FIG. 4 shows a side view of a flat commutator according to the invention
- Fig. 5 shows a section through a first embodiment of
- Fig. 6 shows a section through a second embodiment of
- Fig. 7 shows a section through a third embodiment of
- Fig. 8 shows a perspective view of a second
- FIG. 10 shows a section along X-X in FIG. 9, FIG.
- FIG. 11 shows a second embodiment of a plan commutator in side view
- Fig. 12 shows the plan view of the plan commutator of Fig. 1 1
- Fig. 13 shows the plan commutator of Fig. 1 1 in the assembled
- FIG. 14 shows the plan view of the plan commutator of FIG. 13, and FIG. 15 shows a further embodiment of a support body 502.
- Fig. 1 shows a cross section through a known from the prior art Plankommutator.
- the plan commutator 1 has a support body 2 made of an electrically insulating material.
- the support body 2 has a longitudinal axis 4, which coincides with the axis of rotation of the plan commutator 1.
- the planar commutator 1 may be axisymmetric to the longitudinal axis 4.
- the flat commutator 1 in particular the support body 2 forms an opening 6 for the passage of an axis of an electric motor.
- the support body 2 is integrally formed on the terminal segments 8, the radially outside have a bent hook 10 for the connection of at least one end of a coil winding.
- the running surface 14 of the flat commutator 1 is formed by tread segments 12 which are mechanically fixed and electrically conductively connected to the terminal segments 8.
- Radially on the outside, the terminal segments 8 form a peripheral surface 16, from which the hooks 10 are bent.
- the further details of the planar commutator 1 can be taken from WO 97/03486 A1.
- FIG. 2 shows a view of a cross section through a flat commutator according to the invention, which results in a section corresponding to M-II in FIG.
- the terminal segments 108 have a head portion 108a and a foot portion 108c which are connected to each other via a connecting portion 108b. Shown in FIG. 2 is the region of a (not shown) tread segment, which is approximately congruent in its contour with the truncated surface of the support body 102.
- the support body 102 has a plurality of Circumferentially distributed regularly arranged openings 118, in which the terminal segments 108 can be inserted. The insertion takes place preferably in the direction parallel to the longitudinal axis of the plane commutator 101, which is perpendicular to the plane of the drawing of FIG.
- the opening 118 has an oversize in the circumferential direction. As a result, it is reliably prevented that, due to tolerances in the production, a corresponding undersize of the opening 118 may occur, as a result of which compressive stresses running in the circumferential direction would be introduced into the carrier body 102
- the opening 118 has an excess with respect to the radial extent of the connecting portion 108b. so that in these areas the connection segment 108 is in contact with the contact surfaces formed by the opening 118 and, in particular, on these surfaces, the force introductions indicated by the arrows 120 in FIG. 2 take place.
- connection segment 108 acts as
- the expansion is preferably still within the elastic limit of the terminal segment 108, for example by an amount between 5 and 50 microns.
- the opening 118 in the region of the connecting portion 108b in the circumferential direction to an excess, so that no pressure forces in the circumferential direction are introduced into the molded body 102 at this point.
- the angle 122 enclosed by the mutually facing end faces of the radially outer region of the foot section 108c and the radially inner region of the head section 108a is less than 90 °, preferably between 30 ° and 60 °, in particular approximately 50 °, and between 4 ° in the illustrated embodiment and 30 °, in particular about 15 °.
- This acute angle ensures that the compressive stresses introduced by the connecting segment 108 into the carrier body 102 due to the expansion of the connecting section 108b substantially compensate one another, in particular a negligibly small resulting pressure component remains in the circumferential direction.
- plan commutator 101 In the plan commutator 101 according to the invention are the
- Connection segments 108 and the support body 102 are therefore brought together substantially stress neutral.
- connection segments 108 are preferably inserted in the axial direction in the support body 102, wherein the insertion is basically possible from both end sides of the support body 102 ago. In many cases, however, an insertion of the side facing away from the tread segments 112 of the support body 102 is preferred.
- the profiling of the connection segments 108 thereby enables an automatic centering of the connection segments 108 in the support body 102, so that the supply and insertion of the connection segments 108 are very well automated can be.
- the support body 102 forms close to the Tread segments 1 12 facing end of the terminal segments 108 from a widening, which can serve to receive a connection means for the connection between terminal segment 108 and tread segment 112.
- FIG. 3 shows a plan view of the flat commutator 101, in particular of the support body 102, wherein - in so far as in accordance with FIG. 2 - only in the opening 118 in the three o'clock position, a connection segment 108 is inserted. The remaining, a total of eight openings 118 are not yet equipped with connection segments 108 in the illustrated state of the plan commutator 101.
- the tread segments 112 are also not yet arranged, the contour of which, however, is indicated by the dashed lines 126.
- the head regions 108a extend with their radially outer contour corresponding to the outer contour of the support body 102 and thus form sections of a flush circumferential surface 116 of the planar commutator 101.
- connection segment 108 shown in the upper half of the picture in the view is plugged into the support body 102 by clamping.
- the head portion 108a integrally forms a male or female terminal 108d for connecting at least one coil winding.
- the head section 108a may also be bent in a hook-shaped manner in this area (see Fig. 1), or have a cutting / clamping connection cutting through the insulation of the coil connection winding, or else a solder connection for the Soldering the coil winding. Both for a possible bending as well as for fixing the coil terminal winding, it is advantageous that the connection segment 108 is already sufficiently firmly connected to the support body 102 in the illustrated inserted state.
- the opening 118 in the support body 102 has a first widening 124 and a second widening 128.
- the second widening 128 serves for the possibly also positive reception of the tread segments 112 and can, for example, if the tread segments 1 12 are present in the composite, for example in the form of an annular disc, also in an annular second widening 128.
- the first widening 124 is preferably provided individually to the respective terminal segment 108, and may for example be circular.
- the radially bounded by the first expansion 124 space may form a receiving space for a connecting means for connecting the terminal segment 108 with the tread segment 1 12. It is particularly advantageous in this
- connection when the terminal segment 108 in the axial direction, ie in the direction parallel to the longitudinal axis 104, protrudes with its the tread segment 112 facing the end in the region of the first expansion 124.
- the connecting means can not only create a flat against the axial end face of the terminal segment 108, but also overlap it like a cap and also cause an additional seal between the terminal segment 108 and the support body 102.
- the terminal segment 108 at least at its the tread segment end facing a mechanical Compound and / or electrical contacting improving coating.
- the tread segments may be multi-layered, in particular present as a multi-layered disc prior to segmentation.
- the multi-layer disc may comprise a carbon layer or carbonaceous layer forming the tread, and another layer facing the terminal segments and having at least one metallic constituent, for example copper, tin, brass or alloys thereof.
- the further layer serves in particular to improve the electrical and / or mechanical connection to the terminal segments.
- the multi-layered disc can be produced by a sintering process. Alternatively, a coating of the disc can also take place after the shaping process.
- FIG. 5 shows a section through a first embodiment of the connection between terminal segment 108 and tread segment 112.
- the peculiarity of this first embodiment is, inter alia, that the terminal segment 108 when inserted into the support body 102 against a stop, an abutment, a mandrel or the like has been pressed so that a in the first expansion 124 inside extending, in particular radial projection results, which already ensures a secure axial anchoring of the terminal segment 108 in the support body 102, in particular by the engagement of the terminal segment in the undercut formed by the first expansion 124.
- This anchoring is reinforced by the mechanically strong and electrically conductive connection of the terminal segment 108 with the tread segment 112, wherein this connection takes place in the illustrated first embodiment by means of an electrically conductive adhesive layer 130.
- the adhesive layer 130 not only adjoins the end face of the terminal segment 108 and the corresponding end face of the tread segment 112, but also fills the area of the first widening 124 in the radial direction, so that a seal and in particular complete coverage of the first widening is provided by the adhesive layer 130 Connection segment 108 is ensured. It is also possible to glue the connection segments 108 themselves to the support body 102.
- a first difference from the first exemplary embodiment is the type of connecting layer, which is a solder layer 132 due to the surface tension acting in this second exemplary embodiment has a funnel-shaped widening in the direction of the tread segment 112 and in this way, and in particular without the need for a spreading of the connection segment 108, provides for a radial engagement in the region of the first expansion 124 and thus for the formation of a tie rod with respect to an axial Movability of the terminal segment 108.
- a further special feature of the second embodiment is the type of shaping of the front end of the support body 102.
- the corresponding tread segments 112 are formed correspondingly step-like and engage behind with their terminal segments 108 facing the end of the first and / or second nose 134, 136 of the second expansion 128.
- the corresponding shape of the tread segments 1 12 can either are already provided in the shaping production or, for example, in the case of attaching the tread segments 112 in the composite in the form of an annular disc, are provided by turning such an annular disc.
- the latching fixing the tread segment 112 on the support body 102 offers the case anyway Advantage of a pre-fixing, which ensures that the tread segment 112 is in the correct position with respect to the associated terminal segment 108 and remains in a subsequent gluing or soldering.
- the tread segment 112 can also be held in a particularly planar contact with the support body by latching fixing.
- an additional sealing means may be inserted in the annular gap formed between the tread segments 112 and the support body 102, for example also an adhesive layer to prevent aggressive media from entering these areas ,
- FIG. 7 shows a third embodiment of a connection between the terminal segments 108 and the tread segments 112.
- a first difference with respect to the other two exemplary embodiments is that the connection layer 138 between terminal segments 108 and tread segments 112 substantially completely fills the space of the first widening 124 and thereby also an absolutely reliable sealing of the support body 102 relative to the terminal segments 108 forms.
- the support body 102 at its axial end in the region of the second widening 128, although in turn a taper to form the annular or partially annular, possibly even punctiform lugs 134, 136 provides that in terms of their dimensions even identical to those of the second embodiment of FIG. 6, but that the dimension of the tread segment 112 is less than the clear width of the second widening 128 determined by the two lugs 134, 136 when inserting the tread segment 112 in the second widening 128 not to a clipping, but the tread segment 112 can be loosely inserted.
- Tread segment 112 and the support body 102 for example, filled with a curable composition, in particular an adhesive, this results in the annular gap fills, preferably annular securing body 140, which ensures a positive fixing of the tread segments 1 12 on the support body 102 due to its shape and due to the Cooperation with the contour of the support body 102, in the embodiment of Fig. 7 with the first and / or second nose 134, 136, and with the contour of the tread segment 112th
- the connecting layers 130, 132, 138 form a wreath extending into the first widening 124, funnel, or other anchor element, through which the terminal segment 108 and thus also the tread segment 12 are formed axially permanently fixed to the support body 102 in the axial direction.
- FIG. 8 shows a perspective view of a second exemplary embodiment of a carrier body 202.
- a first difference from the carrier body 102 of the first exemplary embodiment is the essentially trapezoidal cross-sectional contour of the opening 218 for the connection segments.
- the first expansion 224 in the plan view is circular and covers in the illustrated second Embodiment, the entire opening 218 from.
- the first widening 224 in turn forms a depot space for a connecting means.
- the support body 202 has eight openings 218 for connection segments.
- the second widening 228 is bounded radially on the outside by an outer ring 242 formed integrally by the supporting body 202 and radially inwardly by an inner ring 244 formed integrally by the supporting body 202. Both the outer ring 242 and the inner ring 244 are formed by ring segments 242a, 242b, the respective ones
- Tread segments are assigned. Between adjacent ring segments 242a, 242b, a respective recess 242c is provided whose extent in the circumferential direction is greater than the tool width for segmenting the tread segments. In this way it is possible that in the composite, for example as an annular disc, on the
- Support body 202 and the associated terminal segments fixed tread segments to separate by separating cuts, without having to sever the outer and / or inner ring land 242, 244. This significantly increases the service life of the cutting tool.
- a higher separation speed can be achieved because a break of the outer ring 242 and / or the inner ring 244 no longer has to be prevented by reducing the separation speed.
- Another special feature of the support body 202 is that even in the contact surface 246 of the support body 202 recesses for the
- Segmentation of the annular disc are provided, in particular radially extending grooves 248, which are aligned with the corresponding recesses 242c in the outer ring 242 and inner ring 244.
- the depth of these grooves 248 is chosen so that a safe separation of the annular disc is ensured without being sawn into the support body. If these grooves 248 are still filled with a preferably electrically non-conductive adhesive, not only an additional connection of the tread segments is ensured with the support body 202, but also reliably prevents breakage of the usually carbon-containing tread segments during cutting.
- a so-called soft charcoal can be used for the tread segments, i. a plastic-bonded coal whose exact composition can be chosen in coordination with the associated commutator brushes.
- the support body 202 recesses 216a, which serve to receive the terminal segments, in particular for that portion of the terminal segments, which is provided for the connection of the coil windings.
- the first widening 124 can be used as a kind of storage space for such a connection means.
- the tread segment 112 may be correspondingly coated, for example tinned, at least on the surface facing the connection segment 108, if appropriate also over the entire surface.
- FIG. 9 shows a plan view of a particular exemplary embodiment of the tread segments, namely in the form of a pre-segmented tread plate 350.
- FIG. 10 shows a section along XX in FIG. 9.
- Such a tread plate 350 may be segmented by radial cuts into the individual tread segments 312a, 312b.
- this segmentation is formed by radial grooves 352 already formed in the shaping of the tread plate 350
- the depth of the grooves 352 extends, as shown in particular in the cross section in Fig. 10, only to about half the thickness of the tread 350. In particular, remains in the region of the tread 350, which faces away from the support body, a
- Connecting ring 354 which connects the individual tread segments 312a, 312b together.
- handling or tool engagement surfaces 356 are provided by means of which the tread plate 350 can be mechanically and automatically fed to the respective support body.
- the tool engagement surfaces 356 can be distributed uniformly in the circumferential direction, in particular in each case in the region of the tread segments 312a, 312b.
- the tread plate 350 forms projections 358 which, with regard to their number and / or arrangement, can be adapted to the arrangement of the tread segments 312a, 312b.
- these projections 358 may be adapted in their shape and arrangement to the provided on the support body 202 first widening 224, in particular engage in this form-fitting manner. This ensures a simplified positioning of the tread plate 350 on the support body 302.
- Tread 350 are turned off at its exposed flat surface to a height which is indicated in Fig. 10 by the dotted line 360. As a result, the twisting takes place into the region of the grooves 352, so that the tread segments 312a, 312b are singulated thereby. The making of cuts is therefore no longer necessary.
- Fig. 1 1 shows a second embodiment of a flat commutator 401 in the side view, in the not yet assembled state.
- the support body 402 is shown partially in section in the upper half of the picture and in the lower half of the image in the view. In the lower half of the support body 402 is also shown with inserted terminal segments 408.
- terminal segment 408 in particular its head portion 408a, preferably integrally forming a collar 408e, at least partially forms the outer ring 242 formed in the embodiment of FIG. 8 by the support body 202.
- a radially outer side protection for the tread segment 412 is formed and / or a contact surface for positioning and aligning the
- connection segment 408 can be additionally fixed when welding the coil winding, in particular in the radial direction.
- connection segment 408 can be inserted from the side of the support body 402 facing the tread segments 412. The insertion of the terminal segments 408 takes place until it abuts against associated abutment surfaces 462 of the support body 402, which preferably include a right angle with the longitudinal axis 404.
- the tread segments 412 have, on their surface 464 facing the connection segments 408, a coating, for example of tin, copper or brass, by means of which a secure mechanical and electrical connection to the connection segments 408 is ensured.
- FIG. 12 shows the plan view of the embodiment of FIG. 11.
- the collar 408e is arcuate in plan view with respect to the longitudinal axis 404 with an arc angle of about half the arc angle of a tread segment 412; in the illustrated
- the arc angle of the collar 408e is about 20 °.
- FIG. 13 shows the plan commutator 401 of FIG. 11 in the assembled state in side view.
- a circular recess 466 in the illustrated embodiment is provided (Fig. 11), which forms a depot space for the connecting means for connecting the terminal segment 408 with the associated tread segment 412.
- the collar 408e axially projects beyond the exposed planar surface of the tread segment 412.
- the terminal segments 408, the tread segments 412 and the support body 402 are flattened to form the tread 414 of the planar commutator 401st
- the collar 408e has no axial projection over the exposed planar surface of the tread segment 412, but is recessed from the planar surface or even from the tread 414, in particular recessed one tenth of a millimeter from the tread 414.
- no material of the collar 408e has to be removed, which simplifies the process of facing, for example.
- the tread segments 412 in the laminated structure have a thickness of about 2.5 mm, which is reduced to about 2 mm by facing.
- the axial length of the collar 408e is typically between 1, 5 and 1.8 mm.
- the support body 402 may comprise ring segments 444a forming the inner ring, which axially have a projection over the exposed planar surface of the tread segments 412.
- these ring segments at their front end a chamfer (see also Fig. 15), by the insertion of the tread segments 412 is simplified.
- Disc assembly are used, is reliably prevented by the axial projection of the ring segments 444a tilting of the disc on the collar 408e and thus the risk of damage to the disc.
- Fig. 15 shows a further embodiment of a support body 502.
- the openings 518 adapted to receive terminal segments the foot portion has approximately the shape of a dragon quadrangle, wherein the radially inside tip of the dragon quadrangle is flattened and the radially outboard tip of the kite quadrant transitions into the opening for the connecting section.
- the angle enclosed by the facing surfaces of the radially outer region of the foot portion and the radially inner region of the head portion of the terminal segments is between 30 and 60 °, in particular about 50 °.
- the first expansion 524 is adapted to the cross-sectional shape of the foot portion of the connection segments and in the illustrated embodiment, in particular pentagonal.
- the overlap of the first expansion 524 with respect to the opening 518 in the circumferential direction is relatively small or even vanishing in the region of the radial boundary lines of the cross-sectional shape of the opening 518.
- a protrusion anchoring the connection segment in the support body 502 is given in particular radially on the inside and radially outside to the other boundary lines of the cross-sectional shape of the opening 518.
- the ring segments 544a forming the inner ring have at their front end a radially outwardly directed chamfer 544b which facilitates insertion of the running surface segments (not shown in FIG. 15).
- the ring segments 542a forming the outer ring can also have a radially inwardly directed chamfer.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacture Of Switches (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005028791A DE102005028791A1 (de) | 2005-06-16 | 2005-06-16 | Plankommutator und Verfahren zur Herstellung eines Plankommutators |
PCT/EP2006/005594 WO2006133873A1 (de) | 2005-06-16 | 2006-06-12 | Plankommutator und verfahren zur herstellung eines plankommutators |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1891713A1 true EP1891713A1 (de) | 2008-02-27 |
EP1891713B1 EP1891713B1 (de) | 2011-05-04 |
Family
ID=36843263
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06754290A Not-in-force EP1891713B1 (de) | 2005-06-16 | 2006-06-12 | Plankommutator und verfahren zur herstellung eines plankommutators |
EP06762008A Not-in-force EP1891714B1 (de) | 2005-06-16 | 2006-06-12 | Plankommutator und verfahren zur herstellung eines plankommutators |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06762008A Not-in-force EP1891714B1 (de) | 2005-06-16 | 2006-06-12 | Plankommutator und verfahren zur herstellung eines plankommutators |
Country Status (11)
Country | Link |
---|---|
US (2) | US20080143211A1 (de) |
EP (2) | EP1891713B1 (de) |
JP (2) | JP2008547364A (de) |
KR (2) | KR20080014043A (de) |
CN (2) | CN100533873C (de) |
AT (2) | ATE459115T1 (de) |
BR (2) | BRPI0611824A2 (de) |
DE (3) | DE102005028791A1 (de) |
MX (2) | MX2007015390A (de) |
RU (2) | RU2382456C2 (de) |
WO (2) | WO2006133873A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005028791A1 (de) * | 2005-06-16 | 2006-12-28 | Kautt & Bux Gmbh | Plankommutator und Verfahren zur Herstellung eines Plankommutators |
GB0800464D0 (en) * | 2008-01-11 | 2008-02-20 | Johnson Electric Sa | Improvement in or relating to a commutator |
DE202009018634U1 (de) * | 2009-10-01 | 2012-08-06 | Friedrich Nettelhoff Gmbh & Co. Kg | Kommutator für einen Elektromotor sowie Trägerelement hierzu |
FR2967498B1 (fr) * | 2010-11-16 | 2015-01-02 | Centre Nat Rech Scient | Utilisation de derives de quinolinone comme outil de recherche |
DE102012010251A1 (de) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Plankommutator und Verfahren zur Montage eines Plankommutators auf eine Welle einer elektrischen Maschine |
DE102015202349A1 (de) | 2014-12-16 | 2016-06-16 | Volkswagen Aktiengesellschaft | Verschaltungsanordnung einer elektrischen Maschine mit asymmetrischem Querschnitt in einem Verbindungsabschnitt |
JP2016195502A (ja) * | 2015-03-31 | 2016-11-17 | 日本電産株式会社 | スピンドルモータおよびディスク駆動装置 |
CN105896225B (zh) * | 2016-06-13 | 2018-05-22 | 薛瑞华 | 钩型换向器 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3171998A (en) * | 1961-04-07 | 1965-03-02 | Gen Electric Canada | Commutator |
GB1438960A (en) * | 1972-11-23 | 1976-06-09 | Lucas Electrical Ltd | Method of manufacturing a rotor assembly for a dynamo electric machine optical transmission systems |
CA1004276A (en) * | 1974-03-13 | 1977-01-25 | Canadian General Electric Company Limited | Peripheral commutator for discoidal armature |
CS216338B1 (en) * | 1980-04-30 | 1982-10-29 | Karel Skrdlant | Method of making the front commutators of the d.c.electromotors |
FR2482375A1 (fr) * | 1980-05-09 | 1981-11-13 | Lorette Manufacture Vilebrequi | Procede et moyens de fabrication de collecteurs frontaux de moteurs electriques |
US4629923A (en) * | 1985-08-09 | 1986-12-16 | Robert Bosch Gmbh | Commutator for dynamo electric machines |
GB9217259D0 (en) * | 1992-08-14 | 1992-09-30 | Johnson Electric Sa | A planar carbon segment commutor |
GB2286487A (en) * | 1994-02-12 | 1995-08-16 | Johnson Electric Sa | Planar moulded carbon segment commutator |
JP3313509B2 (ja) * | 1994-04-25 | 2002-08-12 | 株式会社ミツバ | コミテータ |
DE19525584A1 (de) * | 1995-07-13 | 1997-01-16 | Kautt & Bux Commutator Gmbh | Verfahren zur Herstellung eines Plankommutators |
DE19530051C2 (de) * | 1995-08-16 | 2002-02-07 | Kirkwood Ind Gmbh | Steckkommutator |
DE19859006A1 (de) * | 1998-12-21 | 2000-06-29 | Bosch Gmbh Robert | Anker mit Plankommutator für einen Elektromotor |
DE19925286A1 (de) * | 1999-06-02 | 2000-12-07 | Kolektor D O O | Verfahren zur Herstellung eines Plankommutators sowie ein nach diesem Verfahren hergestellter Plankommutator |
DE19926900A1 (de) * | 1999-06-12 | 2000-12-21 | Kirkwood Ind Gmbh | Verfahren zur Herstellung eines Plankommutators und nach diesem Verfahren hergestellter Kommutator |
DE19956844A1 (de) * | 1999-11-26 | 2001-06-13 | Kolektor D O O | Plankommutator, Verfahren zu seiner Herstellung sowie Leiterrohling und Kohlenstoffscheibe zur Verwendung bei seiner Herstellung |
GB0104915D0 (en) * | 2001-02-28 | 2001-04-18 | Johnson Electric Sa | A planar carbon segment comutator |
GB0211441D0 (en) * | 2002-05-18 | 2002-06-26 | Johnson Electric Sa | Improvements in or relating to commutators |
DE102005028791A1 (de) * | 2005-06-16 | 2006-12-28 | Kautt & Bux Gmbh | Plankommutator und Verfahren zur Herstellung eines Plankommutators |
-
2005
- 2005-06-16 DE DE102005028791A patent/DE102005028791A1/de not_active Withdrawn
-
2006
- 2006-06-12 JP JP2008516203A patent/JP2008547364A/ja active Pending
- 2006-06-12 RU RU2007146051/09A patent/RU2382456C2/ru not_active IP Right Cessation
- 2006-06-12 BR BRPI0611824-0A patent/BRPI0611824A2/pt not_active IP Right Cessation
- 2006-06-12 EP EP06754290A patent/EP1891713B1/de not_active Not-in-force
- 2006-06-12 MX MX2007015390A patent/MX2007015390A/es active IP Right Grant
- 2006-06-12 MX MX2007015391A patent/MX2007015391A/es active IP Right Grant
- 2006-06-12 AT AT06762008T patent/ATE459115T1/de active
- 2006-06-12 CN CNB2006800144976A patent/CN100533873C/zh not_active Expired - Fee Related
- 2006-06-12 CN CNB2006800144961A patent/CN100533872C/zh not_active Expired - Fee Related
- 2006-06-12 DE DE502006009444T patent/DE502006009444D1/de active Active
- 2006-06-12 AT AT06754290T patent/ATE508505T1/de active
- 2006-06-12 BR BRPI0611939-5A patent/BRPI0611939A2/pt not_active IP Right Cessation
- 2006-06-12 EP EP06762008A patent/EP1891714B1/de not_active Not-in-force
- 2006-06-12 US US11/886,162 patent/US20080143211A1/en not_active Abandoned
- 2006-06-12 DE DE502006006256T patent/DE502006006256D1/de active Active
- 2006-06-12 US US11/886,816 patent/US20090045693A1/en not_active Abandoned
- 2006-06-12 KR KR1020077029320A patent/KR20080014043A/ko not_active Application Discontinuation
- 2006-06-12 KR KR1020077029321A patent/KR20080014044A/ko not_active Application Discontinuation
- 2006-06-12 WO PCT/EP2006/005594 patent/WO2006133873A1/de active Application Filing
- 2006-06-12 WO PCT/EP2006/005593 patent/WO2006133872A1/de active Application Filing
- 2006-06-12 RU RU2007146049/09A patent/RU2382455C2/ru not_active IP Right Cessation
- 2006-06-12 JP JP2008516202A patent/JP2008544732A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2006133873A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR20080014043A (ko) | 2008-02-13 |
JP2008544732A (ja) | 2008-12-04 |
RU2007146049A (ru) | 2009-07-27 |
ATE459115T1 (de) | 2010-03-15 |
EP1891714B1 (de) | 2010-02-24 |
WO2006133872A1 (de) | 2006-12-21 |
US20080143211A1 (en) | 2008-06-19 |
DE102005028791A1 (de) | 2006-12-28 |
WO2006133873A1 (de) | 2006-12-21 |
BRPI0611939A2 (pt) | 2009-06-16 |
CN100533873C (zh) | 2009-08-26 |
MX2007015390A (es) | 2008-04-15 |
CN101167220A (zh) | 2008-04-23 |
DE502006006256D1 (de) | 2010-04-08 |
KR20080014044A (ko) | 2008-02-13 |
MX2007015391A (es) | 2008-02-14 |
CN100533872C (zh) | 2009-08-26 |
EP1891714A1 (de) | 2008-02-27 |
US20090045693A1 (en) | 2009-02-19 |
ATE508505T1 (de) | 2011-05-15 |
CN101167221A (zh) | 2008-04-23 |
DE502006009444D1 (de) | 2011-06-16 |
RU2382456C2 (ru) | 2010-02-20 |
EP1891713B1 (de) | 2011-05-04 |
RU2007146051A (ru) | 2009-07-27 |
RU2382455C2 (ru) | 2010-02-20 |
JP2008547364A (ja) | 2008-12-25 |
BRPI0611824A2 (pt) | 2009-06-16 |
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