WO2012022622A1 - Moteur électrique doté d'un collecteur - Google Patents

Moteur électrique doté d'un collecteur Download PDF

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Publication number
WO2012022622A1
WO2012022622A1 PCT/EP2011/063425 EP2011063425W WO2012022622A1 WO 2012022622 A1 WO2012022622 A1 WO 2012022622A1 EP 2011063425 W EP2011063425 W EP 2011063425W WO 2012022622 A1 WO2012022622 A1 WO 2012022622A1
Authority
WO
WIPO (PCT)
Prior art keywords
commutator
material rods
machine according
machine
plate carrier
Prior art date
Application number
PCT/EP2011/063425
Other languages
German (de)
English (en)
Inventor
Radovan Bobos
Rainer Schach
Jörg SKRIPPEK
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2012022622A1 publication Critical patent/WO2012022622A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/28—Cooling of commutators, slip-rings or brushes e.g. by ventilating
    • 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

Definitions

  • the invention relates to an electric machine with a commutator of a mounted on the armature shaft of the machine disk carrier and a plurality of distributed on the circumference of the disk carrier and insulated by an embedding mass from each other fixed slats.
  • Such a machine is known from GB 1 505 806.
  • Commutators are known to heat due to high friction between the brushes and the fins, and more importantly, due to frequent arcing between the brushes and the fins.
  • the disk carrier is formed in favor of better ventilation and heat dissipation of three disks mounted on a sleeve, arise through the two annular chambers under the mounted lamellae.
  • the chambers are connected to each other and with the outside environment airtight.
  • the ventilation of such an anchor is indeed very good;
  • this construction has significant deficiencies in terms of their strength.
  • the commutator fins can thus not be sufficiently secured against the vibrations caused by the brush grinder, which lead to unpleasant noises and faster wear during operation.
  • JP 02097252 A has a plate carrier made of a sleeve of solid material fastened on the armature shaft, in the casing of which the plates are held on the entire length of the casing by means of a very secure positive connection.
  • the length of the sleeve are provided after through holes in the sleeve, which allow air flow during the rotation of the armature.
  • the axes of the through-holes have a slope relative to the axis of the armature shaft.
  • the invention has the object of providing an electrical machine of the type mentioned in such a way that the commutator in operation a good
  • this object is achieved by the characterizing features of claim 1 in such a way that the plate carrier holds on its entire shell length immediate positive engagement with the slats and that in the plate carrier and / or the slats and / or the embedding mass with a plurality are embedded by evenly distributed on one or more circular lines and oriented substantially in the direction of the armature shaft material rods with high thermal conductivity, at least on the front side facing away from the armature with the air surrounding the commutator have direct and intensive contact.
  • the plate carrier consists entirely of the embedding mass.
  • material rods can have great cooling effects even in the narrower spaces of the embedding mass used as a connecting element between a metallic plate carrier and the slats or in the slats themselves.
  • a use of the large space of one of the embedding mass - which of course must be high temperature resistant - existing disc carrier for the attachment of material rods is far more effective.
  • the material rods are cast into the embedding mass of the disk carrier.
  • the material rods are safest to fix in the plate carrier, and they can be positioned so precisely that the commutator remains balanced by the additional masses.
  • the material of the material rods of a metal preferably of aluminum.
  • Aluminum combines the good thermal conductivity with sufficiently high stability.
  • the single FIGURE shows a cut-open commutator without armature shaft, so that the cross-sections of the slats and the disk carrier can be seen.
  • the commutator in Fig. 1 consists essentially of a plate carrier 1 and associated with it lamellae 2.
  • the plate carrier 1 may consist of a stable metallic body, if it is ensured that the lamellae 2 all separately against the plate carrier galvanically separated are.
  • Each blade 2 has an electrical connection with a notorious electrical power supply, which is not shown here for reasons of clarity.
  • the slats 2 consist of a regular Copper alloy and are galvanically separated from each other by embedded between the slats 2 insulator 3.
  • the lamellae 2 and the insulating body 3 are threaded into the plate carrier 1 by a so-called dovetail guide made of shaped structures 4 and connected to one another via a tight fitting fit. This results in a very secure fit of the slats 2 on the plate carrier 1 and a vibration-free, compact connection.
  • these cooling extensions 8 are surrounded by the ambient air extremely intensively and in this way very quickly give off the thermal energy injected from the interior of the disk carrier 1 into the material rods 5.
  • the disk carrier 1 can be effectively protected against overheating and maintain its mechanical stability.
  • the plate carrier 1 also consist of a good heat conducting metal, so that it already radiates a considerable part of the heat energy generated in the commutator. But then the slats 2 against each other and against the plate carrier 1 be electrically isolated, which can be achieved by an embedding mass, on the one hand as insulator 3 between the slats 2 and on the other hand in a cavity in the direction indicated by the two-dot chain line jacket region 9 of the disk carrier 1 is.
  • the heat dissipation can be further improved, although the waste heat of the armature is dissipated more intense.
  • the material rods 5 can protrude from the end facing the armature and absorb heat energy there, which is dissipated on the other side 6 of the commutator.
  • the cooling extensions 8 on the side facing away from the anchor side 6 or even the armature facing side of the commutator can advantageously be provided with an air vortexing shape.
  • an air vortexing shape As such a shape, it has been found to be particularly suitable for blades which can provide for a concentric suction of the air and its peripheral removal with the axis 7.
  • Other forms are also conceivable; Experiments will be hard to circumvent for determining the best effect.
  • the material rods 5 may consist of a galvanically neutral, but still good heat conducting material. However, it is also advantageous to produce the material rods 5 of metal, preferably of aluminum or an aluminum alloy, which on the one hand has a very good heat conduction and on the other hand a high mechanical stability.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un moteur électrique doté d'un collecteur composé d'un porte-lames (1) fixé sur l'arbre d'induit du moteur et d'une pluralité de lames (2) réparties sur le pourtour du porte-lames (1) et fixées isolées les unes des autres par une masse d'incorporation (3). L'invention vise à améliorer le refroidissement du collecteur sans que la résistance s'en trouve altérée et en maintenant le niveau de vibrations aussi réduit que possible. A cet effet, le porte-lames (1) demeure en liaison par complémentarité de forme directe avec les lames (2) sur toute la longueur de son enveloppe extérieure. En outre, une pluralité de tiges de matériau (5) à haute conductivité thermique, réparties de manière homogène sur une ou plusieurs circonférences et orientées sensiblement en direction de l'axe (7) sont incorporées dans le porte-lames (1) et/ou les lames (2) et/ou la masse d'incorporation (3). Des parties saillantes de refroidissement (8) des tiges de matériau (5) sont en contact direct et soutenu avec l'air entourant le collecteur, au moins sur la face opposée à l'induit.
PCT/EP2011/063425 2010-08-18 2011-08-04 Moteur électrique doté d'un collecteur WO2012022622A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010039433.5 2010-08-18
DE102010039433A DE102010039433A1 (de) 2010-08-18 2010-08-18 Elektrische Maschine mit einem Kommutator

Publications (1)

Publication Number Publication Date
WO2012022622A1 true WO2012022622A1 (fr) 2012-02-23

Family

ID=44629741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/063425 WO2012022622A1 (fr) 2010-08-18 2011-08-04 Moteur électrique doté d'un collecteur

Country Status (2)

Country Link
DE (1) DE102010039433A1 (fr)
WO (1) WO2012022622A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB470944A (en) * 1935-08-21 1937-08-25 Siemens Ag Improvements in and relating to commutators for dynamo-electrical machines
US2436910A (en) * 1946-04-10 1948-03-02 Gen Motors Corp Commutator bar
GB940046A (en) * 1961-09-22 1963-10-23 Ferranti Ltd Improvements relating to commutators for dynamo-electric machines
CH542539A (de) * 1971-08-25 1973-09-30 Siemens Ag Kommutator für elektrische Maschinen
JPS5331203U (fr) * 1976-08-25 1978-03-17
GB1505806A (en) 1975-04-05 1978-03-30 Meidensha Electric Mfg Co Ltd Commutation arrangement for a dc machine
JPH0241640A (ja) * 1988-07-28 1990-02-09 Hitachi Ltd 超電導集電装置
JPH0297252A (ja) 1988-09-30 1990-04-09 Matsushita Electric Ind Co Ltd 整流子
JPH04133643A (ja) * 1990-09-20 1992-05-07 Toshiba Corp 整流子装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729541C (de) * 1935-08-21 1942-12-18 Siemens Ag Stromwender mit die Lamellen zusammenhaltender Nabe, die mit Durchtrittskanaelen fuer die Kuehlluft und mit Luefterfluegeln versehen ist
DE907792C (de) * 1943-12-19 1954-03-29 Siemens Ag Kommutatordruckring fuer elektrische Maschinen
DE2242528A1 (de) * 1971-09-01 1973-03-08 Gen Electric Kommutator fuer rotierende elektrische maschinen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB470944A (en) * 1935-08-21 1937-08-25 Siemens Ag Improvements in and relating to commutators for dynamo-electrical machines
US2436910A (en) * 1946-04-10 1948-03-02 Gen Motors Corp Commutator bar
GB940046A (en) * 1961-09-22 1963-10-23 Ferranti Ltd Improvements relating to commutators for dynamo-electric machines
CH542539A (de) * 1971-08-25 1973-09-30 Siemens Ag Kommutator für elektrische Maschinen
GB1505806A (en) 1975-04-05 1978-03-30 Meidensha Electric Mfg Co Ltd Commutation arrangement for a dc machine
JPS5331203U (fr) * 1976-08-25 1978-03-17
JPH0241640A (ja) * 1988-07-28 1990-02-09 Hitachi Ltd 超電導集電装置
JPH0297252A (ja) 1988-09-30 1990-04-09 Matsushita Electric Ind Co Ltd 整流子
JPH04133643A (ja) * 1990-09-20 1992-05-07 Toshiba Corp 整流子装置

Also Published As

Publication number Publication date
DE102010039433A1 (de) 2012-02-23

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