EP1906494B1 - Carbon brush with wear protection means - Google Patents

Carbon brush with wear protection means Download PDF

Info

Publication number
EP1906494B1
EP1906494B1 EP07116744A EP07116744A EP1906494B1 EP 1906494 B1 EP1906494 B1 EP 1906494B1 EP 07116744 A EP07116744 A EP 07116744A EP 07116744 A EP07116744 A EP 07116744A EP 1906494 B1 EP1906494 B1 EP 1906494B1
Authority
EP
European Patent Office
Prior art keywords
carbon brush
protective cap
face
brush according
side faces
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.)
Active
Application number
EP07116744A
Other languages
German (de)
French (fr)
Other versions
EP1906494A1 (en
Inventor
Herbert Rehm
Stefan Dorner
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP1906494A1 publication Critical patent/EP1906494A1/en
Application granted granted Critical
Publication of EP1906494B1 publication Critical patent/EP1906494B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/26—Solid sliding contacts, e.g. carbon brush
    • 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
    • H01R39/38—Brush holders
    • H01R39/41—Brush holders cartridge type
    • 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
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof

Definitions

  • the invention relates to a carbon brush of a universal motor having a Heidelberg michsstirnseite for contacting a commutator and a facing away from this Beauftschungsstirnseite on which, for example, a spring pressure is applied to bias the carbon brush in the direction of the commutator. Furthermore, the carbon brush has four side surfaces which extend between the Needlessstirnseite and the Beaufschlagungsstirnseite. In this case, wear protection means are provided which are arranged on one of the Beaufschlagungsstirnseite end facing the carbon brush.
  • Corresponding carbon brushes according to the preamble of claim 1 are made US 2,358,958 and US 3,791,331 known. From the US 2,472,540 For example, a cap applied by a coating method is known.
  • a disadvantage of the known anti-wear agents that their attachment to the carbon brush is relatively complex, whereby the manufacturing cost of the carbon brushes are relatively high.
  • the type of attachment causes a material weakening of the carbon brush, which increases as a result of wear over the life of the carbon brush. This in turn can lead to wear of the carbon brush on the protective plate.
  • the present invention has for its object to avoid the disadvantages mentioned in a carbon brush and to ensure a sufficient wear protection at low production costs.
  • the object is achieved in that the wear protection means are formed on a cup-shaped protective cap.
  • a protective cap can be easily attached to the respective carbon brush and thus enables a cost-effective production of the carbon brush.
  • a peripheral recess for partially receiving the protective cap is provided on the four end faces of the end face facing the loading end face. In this way, the cap can be positioned by positive engagement exactly opposite the carbon brush.
  • the protective cap encloses all four side surfaces substantially completely. In this way, with appropriate dimensioning of the protective cap relative to the carbon brush, a hoop tension can be built up, which secures the protective cap to the carbon brush.
  • the recess on each side surface has a thickness which corresponds to a wall thickness of one of the respective side surface associated side wall of the protective cap.
  • the surface of the cap closes flush with the side surfaces of the carbon brush to ensure an accurate guidance along the carbon guide.
  • a receiving slot is provided on one of the side walls, which is open in the direction of a receiving opening of the protective cap.
  • the protective cap can be pushed without problems over a laterally emerging on the carbon brush strand.
  • a certain elasticity of the protective cap is produced by such a receiving slot, which allows a particularly simple assembly.
  • the protective cap is set particularly stable on the carbon brush.
  • the Fig. 1 and 2 show a carbon brush 2 of a universal motor, not shown.
  • This has amaschinetechniksstirnseite 4, which contacts a commutator 6 of the universal motor in operation.
  • the carbon brush 2 four side surfaces 8a, 8b, 8c, 8d and a Beaufschlagungsstirnseite 10, which is acted upon in operation with the interposition of a bottom 12 of a cup-shaped cap 14 by a contact force F.
  • this contact force F the carbon brush 2 is biased along a carbon guide 16 against the commutator 6.
  • the pot-shaped protective cap 14 is made of polyamide 6.6, for example, and has four side walls 18a, 18b, 18c, 18d extending from the bottom 12, which delimit a receptacle 20 with a receiving opening 22 arranged on a side of the protective cap 14 facing away from the bottom 12.
  • an end area 24 of the carbon brush 2 facing the loading end face 10 is moved into the receptacle 20 via this receiving opening 22, the end area 24 having a slightly larger cross section than the receptacle 20.
  • the protective cap which has a certain elasticity, is clamped to the end region 24 by a hoop stress generated during attachment.
  • the side walls 18a, 18b, 18c, 18d and the bottom 12 act here as wear protection. On the one hand reduce the side walls 18a, 18b, 18c, 18d caused by friction on the carbon guide abrasion at the end portion 24, which occurs in particular due to operational vibration in the presence of coal dust and detached carbon particles.
  • the recess 26 at each of the four side surfaces 8a, 8b, 8c, 8d each have a thickness d which corresponds to a thickness s of the respective associated side walls 18a, 18b, 18c, 18d.
  • a flush closure of the side surfaces 8a, 8b, 8c, 8d of the carbon brush with the side walls 18a, 18b, 18c, 18d of the protective cap 14 is achieved.
  • a receiving slot is formed on the side wall 18a, which is formed parallel to a mounting direction R and opened to the receiving opening 22.
  • the protective cap 14 can also be plugged onto the end region 24 via a strand 30 which emerges laterally on the carbon brush 2.
  • an adhesive 28 may be provided at the end region 24 in addition to the said clamping connection, which produces an additional adhesive bond.

Description

Die Erfindung betrifft eine Kohlebürste eines Universalmotors, die eine Kontaktierungsstirnseite zur Kontaktierung eines Kommutators und eine von dieser abgewandte Beaufschlagungsstirnseite aufweist, an der beispielsweise ein Federdruck aufgebracht wird, um die Kohlebürste in Richtung des Kommutators vorzuspannen. Ferner weist die Kohlebürste vier Seitenflächen auf, die sich zwischen der Kontaktierungsstirnseite und der Beaufschlagungsstirnseite erstrecken. Hierbei sind Verschleissschutzmittel vorgesehen, die an einem der Beaufschlagungsstirnseite zugewandten Endbereich der Kohlebürste angeordnet sind. Entsprechende Kohlebürsten gemäss dem Oberbegriff von Anspruch 1 sind aus US 2,358,958 und US 3,791,331 bekannt. Aus der US 2,472,540 ist eine mittels eines Beschichtungsverfahrens aufgebrachte Kappe bekannt.The invention relates to a carbon brush of a universal motor having a Kontaktierungsstirnseite for contacting a commutator and a facing away from this Beaufschlagungsstirnseite on which, for example, a spring pressure is applied to bias the carbon brush in the direction of the commutator. Furthermore, the carbon brush has four side surfaces which extend between the Kontaktierungsstirnseite and the Beaufschlagungsstirnseite. In this case, wear protection means are provided which are arranged on one of the Beaufschlagungsstirnseite end facing the carbon brush. Corresponding carbon brushes according to the preamble of claim 1 are made US 2,358,958 and US 3,791,331 known. From the US 2,472,540 For example, a cap applied by a coating method is known.

Bei derartigen Kohlebürsten kann mittels des Verschleissschutzes ein seitlicher Verschleiss an den Kohlebürsten deutlich reduziert werden. Dieser Verschleiss tritt im Betrieb infolge des Vorhandenseins von abgelösten Kohlepartikeln und der Vibrationen insbesondere zwischen den Seitenflächen und der betreffenden Kohleführung auf. Als Folge des seitlichen Verschleisses kann es zu einer ungenauen Führung der Kohlebürste in der Kohleführung und dadurch wiederum zu einer stark verkürzten Lebensdauer der Kohlebürste kommen.In such carbon brushes, a lateral wear on the carbon brushes can be significantly reduced by means of the wear protection. This wear occurs in operation due to the presence of detached carbon particles and the vibrations, in particular between the side surfaces and the relevant coal guide. As a result of the lateral wear can lead to an inaccurate guidance of the carbon brush in the coal guide and thereby in turn to a greatly reduced life of the carbon brush.

Aus der GB 27,162 ist eine Kohlebürste bekannt, bei der an dem der Beaufschlagungsstirnseite zugewandten Endbereich an zwei gegenüberliegenden Seitenflächen Schutzplättchen vorgesehen sind. Diese sind über zwei Niete miteinander verbunden, die die Kohlebürste hierzu durchdringen.From the GB 27,162 a carbon brush is known in which at the end face facing the Beaufschlagungsstirnseite on two opposite side surfaces protection plates are provided. These are connected by two rivets that penetrate the carbon brush for this purpose.

Nachteilig an den bekannten Verschleissschutzmitteln ist, dass deren Befestigung an der Kohlebürste relativ aufwändig ist, wodurch die Herstellungskosten für die Kohlebürsten relativ hoch sind. Zudem bedingt die Art der Befestigung eine Materialschwächung der Kohlebürste, die infolge von Verschleiss über die Lebensdauer der Kohlebürste zunimmt. Dies kann wiederum zu einem Verschleiss der Kohlebürste an den Schutzplättchen führen.A disadvantage of the known anti-wear agents that their attachment to the carbon brush is relatively complex, whereby the manufacturing cost of the carbon brushes are relatively high. In addition, the type of attachment causes a material weakening of the carbon brush, which increases as a result of wear over the life of the carbon brush. This in turn can lead to wear of the carbon brush on the protective plate.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei einer Kohlebürste die genannten Nachteile zu vermeiden und bei geringen Herstellungskosten einen ausreichenden Verschleissschutz zu gewährleisten.The present invention has for its object to avoid the disadvantages mentioned in a carbon brush and to ensure a sufficient wear protection at low production costs.

Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass die Verschleissschutzmittel an einer topfförmigen Schutzkappe ausgebildet sind. Eine derartige Schutzkappe kann einfach auf die betreffende Kohlebürste aufgesteckt werden und ermöglicht somit eine kostengünstige Herstellung der Kohlebürste.According to the invention, the object is achieved in that the wear protection means are formed on a cup-shaped protective cap. Such a protective cap can be easily attached to the respective carbon brush and thus enables a cost-effective production of the carbon brush.

Erfindungsgemäss ist an dem der Beaufschlagungsstirnseite zugewandten Endbereich an den vier Seitenflächen eine umlaufende Aussparung zur teilweisen Aufnahme der Schutzkappe vorgesehen. Auf diese Weise kann die Schutzkappe durch Formschluss exakt gegenüber der Kohlebürste positioniert werden.According to the invention, a peripheral recess for partially receiving the protective cap is provided on the four end faces of the end face facing the loading end face. In this way, the cap can be positioned by positive engagement exactly opposite the carbon brush.

In einer besonders bevorzugten Ausführungsform umschliesst die Schutzkappe alle vier Seitenflächen im Wesentlichen vollständig. Hierdurch kann bei geeigneter Dimensionierung der Schutzkappe gegenüber der Kohlebürste eine Ringspannung aufgebaut werden, die die Schutzkappe an der Kohlebürste sichert.In a particularly preferred embodiment, the protective cap encloses all four side surfaces substantially completely. In this way, with appropriate dimensioning of the protective cap relative to the carbon brush, a hoop tension can be built up, which secures the protective cap to the carbon brush.

Bevorzugterweise weist die Aussparung an jeder Seitenfläche eine Dicke auf, die einer Wandstärke einer der jeweiligen Seitenfläche zugeordneten Seitenwand der Schutzkappe entspricht. Auf diese Weise schliesst die Oberfläche der Schutzkappe bündig mit den Seitenflächen der Kohlebürste ab, um eine exakte Führung entlang der Kohleführung zu gewährleisten.Preferably, the recess on each side surface has a thickness which corresponds to a wall thickness of one of the respective side surface associated side wall of the protective cap. In this way, the surface of the cap closes flush with the side surfaces of the carbon brush to ensure an accurate guidance along the carbon guide.

Vorteilhafterweise ist an einer der Seitenwände ein Aufnahmeschlitz vorgesehen, der in Richtung einer Aufnahmeöffnung der Schutzkappe geöffnet ist. Hierdurch kann die Schutzkappe ohne Probleme über eine an der Kohlebürste seitlich austretende Litze geschoben werden. Ferner wird durch einen derartigen Aufnahmeschlitz eine gewisse Elastizität der Schutzkappe hergestellt, die eine besonders einfache Montage ermöglicht.Advantageously, a receiving slot is provided on one of the side walls, which is open in the direction of a receiving opening of the protective cap. As a result, the protective cap can be pushed without problems over a laterally emerging on the carbon brush strand. Furthermore, a certain elasticity of the protective cap is produced by such a receiving slot, which allows a particularly simple assembly.

Ferner ist es besonders günstig, wenn an den Seitenflächen zwischen diesen und der Schutzkappe ein Klebstoff vorgesehen ist. Hierdurch wird die Schutzkappe besonders stabil an der Kohlebürste festgelegt.Furthermore, it is particularly advantageous if an adhesive is provided on the side surfaces between these and the protective cap. As a result, the protective cap is set particularly stable on the carbon brush.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht einer Kontaktierungsstirnseite einer Kohlebürste mit getrennter Schutzkappe und
Fig. 2
eine perspektivische Ansicht einer Beaufschlagungsstirnseite der Kohlebürste in Richtung II aus Fig. 1.
The invention will be explained in more detail below with reference to an embodiment. Show it:
Fig. 1
a perspective view of a Kontaktierungsstirnseite a carbon brush with a separate cap and
Fig. 2
a perspective view of an admission end face of the carbon brush in the direction of II Fig. 1 ,

Die Fig. 1 und 2 zeigen eine Kohlebürste 2 eines nicht näher dargestellten Universalmotors. Diese weist eine Kontaktierungsstirnseite 4 auf, die im Betrieb einen Kommutator 6 des Universalmotors kontaktiert. Ferner weist die Kohlebürste 2 vier Seitenflächen 8a, 8b, 8c, 8d und eine Beaufschlagungsstirnseite 10 auf, die im Betrieb unter Zwischenlage eines Bodens 12 einer topfförmigen Schutzkappe 14 von einer Anpresskraft F beaufschlagt ist. Durch diese Anpresskraft F wird die Kohlebürste 2 entlang einer Kohleführung 16 gegen den Kommutator 6 vorgespannt.The Fig. 1 and 2 show a carbon brush 2 of a universal motor, not shown. This has a Kontaktierungsstirnseite 4, which contacts a commutator 6 of the universal motor in operation. Furthermore, the carbon brush 2 four side surfaces 8a, 8b, 8c, 8d and a Beaufschlagungsstirnseite 10, which is acted upon in operation with the interposition of a bottom 12 of a cup-shaped cap 14 by a contact force F. By this contact force F, the carbon brush 2 is biased along a carbon guide 16 against the commutator 6.

Die topfförmige Schutzkappe 14 ist beispielsweise aus Polyamid 6.6 hergestellt und weist vier vom Boden 12 abgehende Seitenwände 18a, 18b, 18c, 18d auf, die eine Aufnahme 20 mit einer an einer vom Boden 12 abgewandten Seite der Schutzkappe 14 angeordneten Aufnahmeöffnung 22 begrenzen. Über diese Aufnahmeöffnung 22 wird beim Aufstecken der Schutzkappe 14 ein der Beaufschlagungsstirnseite 10 zugewandter Endbereich 24 der Kohlebürste 2 in die Aufnahme 20 hinein verlegt, wobei der Endbereich 24 einen geringfügig grösseren Querschnitt als die Aufnahme 20 aufweist. Hierdurch wird die Schutzkappe, die eine gewisse Elastizität aufweist, durch eine beim Aufstecken erzeugte Ringspannung an dem Endbereich 24 festgeklemmt.The pot-shaped protective cap 14 is made of polyamide 6.6, for example, and has four side walls 18a, 18b, 18c, 18d extending from the bottom 12, which delimit a receptacle 20 with a receiving opening 22 arranged on a side of the protective cap 14 facing away from the bottom 12. When plugging in the protective cap 14, an end area 24 of the carbon brush 2 facing the loading end face 10 is moved into the receptacle 20 via this receiving opening 22, the end area 24 having a slightly larger cross section than the receptacle 20. As a result, the protective cap, which has a certain elasticity, is clamped to the end region 24 by a hoop stress generated during attachment.

Die Seitenwände 18a, 18b, 18c, 18d sowie der Boden 12 fungieren hierbei als Verschleissschutzmittel. Dabei reduzieren einerseits die Seitenwände 18a, 18b, 18c, 18d den durch Reibung an der Kohleführung verursachten Abrieb am Endbereich 24, der insbesondere in Folge von betriebsbedingten Vibrationen bei Präsenz von Kohlestaub und abgelösten Kohlepartikeln auftritt.The side walls 18a, 18b, 18c, 18d and the bottom 12 act here as wear protection. On the one hand reduce the side walls 18a, 18b, 18c, 18d caused by friction on the carbon guide abrasion at the end portion 24, which occurs in particular due to operational vibration in the presence of coal dust and detached carbon particles.

Um hierbei einerseits eine ausreichend stabile Verbindung zwischen der Schutzkappe 14 und der Kohlebürste 2 sowie eine geschlossene Form derselben zu erzielen, ist an demTo achieve this on the one hand, a sufficiently stable connection between the cap 14 and the carbon brush 2 and a closed shape thereof, is on the

Endbereich 24 eine über die vier Seitenflächen 8a, 8b, 8c, 8d hinweg umlaufend eingelassene Aussparung 26 vorgesehen, die gegenüber einer in Fig. 1 mit strichpunktierter Linie dargestellten ursprünglichen Form, ausgebildet ist. Dabei weist die Aussparung 26 an jeder der vier Seitenflächen 8a, 8b, 8c, 8d jeweils eine Dicke d auf, die einer Stärke s der jeweilig zugeordneten Seitenwände 18a, 18b, 18c, 18d entspricht. Hierdurch wird ein bündiges Abschliessen der Seitenflächen 8a, 8b, 8c, 8d der Kohlebürste mit den Seitenwänden 18a, 18b, 18c, 18d der Schutzkappe 14 erzielt.End region 24 a over the four side surfaces 8a, 8b, 8c, 8d circumferentially recessed recess 26 provided opposite to a in Fig. 1 formed with dotted line original form, is formed. In this case, the recess 26 at each of the four side surfaces 8a, 8b, 8c, 8d each have a thickness d which corresponds to a thickness s of the respective associated side walls 18a, 18b, 18c, 18d. In this way, a flush closure of the side surfaces 8a, 8b, 8c, 8d of the carbon brush with the side walls 18a, 18b, 18c, 18d of the protective cap 14 is achieved.

Ferner ist an der Seitenwand 18a ein Aufnahmeschlitz eingelassen, der parallel zu einer Aufsteckrichtung R ausgebildet und zu der Aufnahmeöffnung 22 hin geöffnet ist. Hierdurch kann die Schutzkappe 14 auch über eine an der Kohlebürste 2 seitlich austretende Litze 30 auf den Endbereich 24 aufgesteckt werden.Further, a receiving slot is formed on the side wall 18a, which is formed parallel to a mounting direction R and opened to the receiving opening 22. In this way, the protective cap 14 can also be plugged onto the end region 24 via a strand 30 which emerges laterally on the carbon brush 2.

Um die Stabilität der Verbindung zwischen der Kohlebürste 2 und der Schutzkappe 14 weiter zu erhöhen, kann an dem Endbereich 24 neben der genannten Klemmverbindung ein Klebstoff 28 vorgesehen werden, der eine zusätzlich wirkende Klebeverbindung erzeugt.In order to further increase the stability of the connection between the carbon brush 2 and the protective cap 14, an adhesive 28 may be provided at the end region 24 in addition to the said clamping connection, which produces an additional adhesive bond.

Claims (6)

  1. Carbon brush (2),
    comprising a contacting end face (4), a pressure-application end face (10) oriented away from the contacting end face (4) and four side faces (8a, 8b, 8c, 8d),
    there being provided a protective wear protection means which is configured as a cup-shaped protective cap (14) and is arranged on an end region (24) oriented towards the pressure-application end face (10),
    characterized in that a peripheral recess (26) for partially receiving the protective cap (14) is provided on the four side faces (8a, 8b, 8c, 8d) in the end region (24) oriented towards the pressure-application end face (10).
  2. Carbon brush according to Claim 1, characterized in that the protective cap (14) extends peripherally over all four side faces (8a, 8b, 8c, 8d).
  3. Carbon brush according to Claim 1, characterized in that the recess (26) has on each side face (8a, 8b, 8c, 8d) a thickness (d) which corresponds to a wall thickness (s) of a side wall (18a, 18b, 18c, 18d) of the protective cap (14) associated with the respective side face (8a, 8b, 8c, 8d).
  4. Carbon brush according to Claim 1, characterized in that a receiving slot which is open in the direction of a receiving opening (22) of the protective cap (14) is provided on one of the side walls (18a) of the protective cap (14).
  5. Carbon brush according to any one of Claims 1 to 4, characterized in that an adhesive (28) is provided on the side faces (8a, 8b, 8c, 8d) between said side faces (8a, 8b, 8c, 8d) and the protective cap (14).
  6. Carbon brush according to any one of Claims 1 to 5, characterized in that the protective cap (14) is produced from polyamide 6.6.
EP07116744A 2006-09-29 2007-09-19 Carbon brush with wear protection means Active EP1906494B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006000496A DE102006000496A1 (en) 2006-09-29 2006-09-29 Carbon brush with anti-wear agents

Publications (2)

Publication Number Publication Date
EP1906494A1 EP1906494A1 (en) 2008-04-02
EP1906494B1 true EP1906494B1 (en) 2011-04-20

Family

ID=38754522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07116744A Active EP1906494B1 (en) 2006-09-29 2007-09-19 Carbon brush with wear protection means

Country Status (4)

Country Link
US (1) US20080100170A1 (en)
EP (1) EP1906494B1 (en)
CN (1) CN101154785A (en)
DE (2) DE102006000496A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427278A (en) * 2012-05-18 2013-12-04 海门市华联电碳有限公司 Carbon brush for scroll saw
CN104339265A (en) * 2014-08-26 2015-02-11 江苏京创先进电子科技有限公司 Cutter spindle carbon brush abrasion preventing system and working process thereof
USD795192S1 (en) * 2015-09-08 2017-08-22 Helwig Carbon Products, Inc. Brush assembly
US9853407B2 (en) 2015-09-08 2017-12-26 Helwig Carbon Products, Inc. Brush assembly
CN113824272A (en) * 2021-08-27 2021-12-21 东风电驱动系统有限公司 Tool and method for assembling electric brush protection plate and regulator

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US661669A (en) * 1898-07-22 1900-11-13 Gen Electric Connecting conductors to carbon brushes.
US996475A (en) * 1909-09-11 1911-06-27 Gen Electric Brush for dynamo-electric machines.
GB191027162A (en) 1910-11-22 1911-10-05 Morgan Crucible Co Improvements in or connected with Carbon Brushes for Dynamo Electric Machines.
US1433686A (en) * 1919-11-04 1922-10-31 Corliss Carbon Company Device for attaching conductors to brushes
US1433687A (en) * 1922-04-03 1922-10-31 Corliss Carbon Company Inc Device for attaching conductors to brushes
US1573402A (en) * 1924-05-19 1926-02-16 Nat Carbon Co Inc Conductive brush and method of securing attachments thereto
US1579097A (en) * 1925-04-14 1926-03-30 Harry H Erdman Commutator and slip-ring brush shunt connection
US1844174A (en) * 1928-05-18 1932-02-09 Horace D Munday Brush holder device for truing commutators
US2358958A (en) 1943-03-20 1944-09-26 John T Brown Collector brush clip
US2473540A (en) * 1944-02-26 1949-06-21 Miller Tobias Electrical motor and dynamo brush
US2472540A (en) 1945-03-14 1949-06-07 Jim C Meador Piston ring
US2864019A (en) * 1957-05-10 1958-12-09 Gordon James Electrical brush holder
US3355611A (en) * 1965-06-11 1967-11-28 Union Carbide Corp Brush clip assembly
US3439206A (en) * 1965-08-31 1969-04-15 Richard T Grannells Brush for electrical devices
DE7010521U (en) * 1970-03-21 1971-08-26 Bosch Gmbh Robert SHUT-OFF CARBON BRUSH.
US3791331A (en) 1972-05-05 1974-02-12 E Dilley Electric outboard motor
JPS5234004U (en) * 1975-09-02 1977-03-10
DE2817317A1 (en) * 1978-04-20 1979-10-25 Siemens Ag POWER TRANSMISSION BRUSH
US4329612A (en) * 1980-05-23 1982-05-11 Ingersoll-Rand Company Brushholder
JPS6048364U (en) * 1983-09-06 1985-04-05 三菱電機株式会社 brush holder
US4847528A (en) * 1987-02-10 1989-07-11 Mitsuba Electric Manufacturing Co., Ltd. Plastic molding on penetration metal, particularly on motor end plate
US5208499A (en) * 1992-01-16 1993-05-04 Carbone-Lorraine Of North America EMI/RFI suppressing brush holder assembly for electric machines
FR2690791B1 (en) * 1992-05-04 1994-06-17 Lorraine Carbone BROOM FOR AN ELECTRIC MOTOR WITH ATTENUATED VIBRATION SENSITIVITY.
US5945755A (en) * 1994-09-20 1999-08-31 Denso Corporation Starter with housing for cantilever-mounting on engine
DE19654352A1 (en) * 1996-12-24 1998-06-25 Bosch Gmbh Robert Collector machine with housing contact
JP3660598B2 (en) * 2001-02-06 2005-06-15 マブチモーター株式会社 Brush holding method and apparatus for small motor
US7249757B2 (en) * 2002-09-26 2007-07-31 Japan Servo Co., Ltd. Brush type small motor having non-linear spring device
US6707220B1 (en) * 2003-02-12 2004-03-16 Siemens Vdo Automotive, Inc. Electric motor brush holder for suppressing audible and electromagnetic noise
US7423359B2 (en) * 2004-06-18 2008-09-09 Moog Inc. Fluid-dispensing reservoir for large-diameter slip rings

Also Published As

Publication number Publication date
CN101154785A (en) 2008-04-02
US20080100170A1 (en) 2008-05-01
DE102006000496A1 (en) 2008-04-03
DE502007006981D1 (en) 2011-06-01
EP1906494A1 (en) 2008-04-02

Similar Documents

Publication Publication Date Title
EP1906494B1 (en) Carbon brush with wear protection means
WO2008014870A1 (en) Device for securing a camera to a carrier
EP1713669A2 (en) Window wiping device, particularly for a motor vehicle
EP1536519A1 (en) Conductor terminal
WO2011138100A1 (en) Belt tensioner
DE102014102930A1 (en) Housing for a connector
DE112016001486B4 (en) BRAKE PAD WEAR DETECTOR
DE102006035440A1 (en) Brush holder for e.g. hand-held power tool, has spring unit comprising contact spring for generating contact force and supporting spring for generating supporting force, where supporting spring is separated from contact spring
EP3191729B1 (en) Caliper guide device for a floating caliper brake caliper
EP2208641B1 (en) Drive for a component to be adjusted
EP2726336B1 (en) Wiping device
EP0101546B1 (en) Electric motor, especially to drive auxiliary units of motor vehicles
WO2016046065A1 (en) Brake pad holder of a disk brake, disk brake and brake pad
DE102011089922A1 (en) Wiper blade device for motor car, has spring strip unit comprising spring strips that are arranged parallel to each other, and wiper blade adapter comprising adapter units that are arranged laterally at strip unit in mounted condition
DE102010020615B4 (en) Snap ring, lens holder and headlight
DE102018113965A1 (en) A sealing interface for an air drying cartridge and a base for an air drying cartridge
DE19822059A1 (en) Device for accommodating and holding battery
DE102011013298A1 (en) Fitting and shower enclosure
EP0076403B1 (en) Noiseless brush holder for a commutator motor
EP2208642B1 (en) Drive for a component to be adjusted
DE102019211621A1 (en) Wiper device
EP3856584A1 (en) Adapter unit and wiper blade
DE102005000085A1 (en) Hand tool with protective hood
EP2651708B1 (en) Wiper blade device
DE10061797B4 (en) lamp

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20081002

17Q First examination report despatched

Effective date: 20081106

AKX Designation fees paid

Designated state(s): CH DE FR GB IT LI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 502007006981

Country of ref document: DE

Date of ref document: 20110601

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007006981

Country of ref document: DE

Effective date: 20110601

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120123

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007006981

Country of ref document: DE

Effective date: 20120123

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230830

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230920

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230928

Year of fee payment: 17

Ref country code: DE

Payment date: 20230920

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230927

Year of fee payment: 17

Ref country code: CH

Payment date: 20231001

Year of fee payment: 17