• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    <P> a. Contact body implemented in an electrical circuit. </ P> <P> b. Characterized in that said contact body is made of polyimide and comprises means for conducting the electric current. </ P> <P> c. Device applicable to electrical connection elements such as friction brushes or breaker. </ P>
    公开号:SU882429A3
    申请号:SU782571846
    申请日:1978-01-27
    公开日:1981-11-15
    发明作者:Либер Хелльмут；Шаллер Готтхильф
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to contact elements, in particular to a contact brush for electric machines.
    Known contact element HA _ Example brush for electric Ma- e tires, comprising a monolithic plastic body disposed therein and conductive elements made of graphite (. 1].
    The aim of the invention is to increase the service life and strength.
    The goal is achieved in that the conductive elements are made of fibers in the form of a lattice structure located in the sintered polyamide. In addition, the conductive elements are evenly distributed in the monolithic body.
    At least a portion of the conductive elements extends at their ends to opposite surfaces of the contact element.
    Several lattice structures are arranged in parallel planes. 25
    Several lattice structures are located in intersecting planes.
    The contact element is provided with abrasive means, preferably located on the surface of the contact element adjacent to the collector.
    Fiber glass was taken as an abrasive.
    In FIG. 1 shows a contact element in a schematic, enlarged image, partially broken in FIG. 2a and 26 are sections AA in FIG. one.
    Contact element 1 (Fig. 1} consists mainly of polyamide. For conducting electric current, contact-conducting elements are provided in the contact element 2. For the forya version of Fig. 1, these elements are formed in the form of a lattice structure of conductive material. To improve the current flow, the polyamide itself in addition, to some extent it can be filled with graphite.The placement of the lattice structure in the contact element 1 in this case contributes to the strength of the contact element 1. The lattice structure may consist, for example, of. metal, preferably from silver or copper. In certain cases, it is advisable that the lattice structure is a carbon fabric 3 lies open. Also, in the contact element 4 are connecting media or graphite fibers or, respectively, artificial coal. Moreover, the location of the lattice structure at the sliding contacts is such that at least one final section of the structure on the contact surface 3 of the contact element 1 and (or) on the conjugated surface 4 of the contact element of the possible plane These are fixed means by which contact element 1 can join other components. According to a certain embodiment, several lattice structures can be placed in the contact element 1 in planes parallel to each other (Fig. 2a). An improvement in the strength of the contact element 1 is also achieved if, according to the embodiment shown in FIG. 26, the lattice structures are placed in intersecting planes. According to another embodiment, the conductive elements can also be formed of fine graphite fibers, which at one end lie freely on the contact surface 3 of the contact element 1. Also in this case, the graphite fibers in the contact element can be evenly distributed. The placement of the indicated products 2 in the contact element is preferably carried out during the manufacture of contact material 1. The process may be a sintering or melting process of the starting material. In particular, when using the contact element as the contact brush of an electric machine, it is advisable that the contact element, at least in the area of its contact surface adjacent to the machine collector, be equipped with abrasive means, which can be fiberglass. ( As a result of this, the collector of the machine interacting with the contact element is kept clean, therefore, a good current transfer is always ensured. Along with the indicated single production of contact elements, it is also possible that several contact elements are cut from one separate workpiece. The advantages of the proposed contact element are the fact that it can be made very cheap, has an extremely compact design and a long life / service, and in certain cases for example, it is subject to relatively low wear, which also prevents the formation of leakage currents, which are unavoidable with known brushes in the area resulting from dust abrasion.The proposed contact element also has the advantage that only small amounts of expensive contact elements are necessary for its manufacture The transient resistance of the contact element may also be affected by the tightness of the conductive means in the contact element.
    权利要求:
    Claims (7)
    [1]
    yes or graphite fibers or artificial coal, respectively. At the same time, for sliding contacts, the placement of the reticular structure is such that at least one end section of the structure on the contact surface 3 of the contact element 1 and (or) on the interfaced surface 4 of the contact element 1 lies open. However, it is also possible that in the interfaced plane 4 of the contact element there are fixed connecting means, by means of which the contact element 1 can be attached to other extensions. According to a certain FORME version, several retracting structures can be placed in the contact element 1 in planes parallel to each other (Fig. 2A. The strength enhancement of the contact element 1 is also achieved if, according to the design of FIG. 26, the lattice structures are placed in intersecting According to the other fork, and the current-conducting elements can also be formed by separate graphite fibers, which at one end lie freely on the contact surface 3 1. In this case, too, the graphite fibers in the contact element can be evenly distributed.The placement of these elements 2 in the contact element 1 is carried out preferably in the process of manufacturing the contact element 1. The process can be, for example, a process of sintering or melting the original xx material In particular, when the contact element is enlarged as a contact brush of an electric machine, it is advisable that the contact element at least 8 areas of its cone adjacent to the collector Comp act surface was provided with abrasive means, which may be a glass fiber. As a result of this interaction with the contact element, the collector of the machine is kept clean, so that a good current transfer is ensured. Along with this single, it is also possible for the contact elements to be made that several contact elements are cut from one separate workpiece. The advantages of the proposed contact element are that it can be manufactured with very cheap, has an extremely compact design and a long service life, and in certain cases, it is subject to relatively low wear, as a result of which leakage currents are also prevented. which, in known brushes, are unavoidable in the region resulting from the abrasion of dust. The proposed contact element also has the advantage that only small amounts of expensive contact materials are necessary for its manufacture. riyals. The contact resistance of the contact element can also be affected by the tightness of the conductive means in the contact element. Claim 1. A contact element for an electrical circuit, for example a brush for electric machines, comprising a solid body of plastic and conductive elements made of graphite located therein, distinguished by the fact that, in order to maintain service life and strength, the elements are made of fibers in the form of a lattice structure located in the sintered polyamide.
    [2]
    2. An element according to claim 1, characterized in that the conductive elements are evenly distributed in the monolithic body.
    [3]
    3.Item on PP. 1 and 2, in which at least part of the conductive elements extend at their ends to opposite surfaces of the contact element.
    [4]
    4. Element pop 1, which differs from the fact that several lattice structures are located in planes parallel to each other.
    [5]
    5. The element according to claim 15 is also distinguished by the fact that several lattice structures are located in intersecting planes.
    [6]
    6.Item on PP. 1-5, that is, with the fact that it is equipped with abrasive means, preferably located to the surface of the contact element adjacent to the collector.
    [7]
    7. The element according to claim 6, characterized in that fiberglass is taken as abrasive means. Sources of information taken into account during the examination 1.; iBTOpCKoe certificate of the USSR 63872, cl. H 01 R 39/26, 1944.
    s
    类似技术:
    公开号 | 公开日 | 专利标题
    SU882429A3|1981-11-15|Contact element for electric circuit
    US7180219B2|2007-02-20|DC motor with externally mounted carbon brush
    US2322011A|1943-06-15|Slip ring assembly
    US4931599A|1990-06-05|Step selector for a stepped transformer
    US2644145A|1953-06-30|Pressure contact
    US2527489A|1950-10-24|Low-tension sparking plug
    FR2423892A1|1979-11-16|ELECTRIC CURRENT TRANSMITTER BRUSH, WITH VERY LOW VOLTAGE DROP
    US4043621A|1977-08-23|Replaceable slip ring rotor
    US4091260A|1978-05-23|Stress wave generating coil
    FR2433257A1|1980-03-07|SELF-SUPPORTING ROTOR COIL FOR DIRECT CURRENT ELECTRIC MACHINES
    US1743682A|1930-01-14|Brush for electric motors
    US4835432A|1989-05-30|Brush holders with single spring
    US2274408A|1942-02-24|Electrically heated tool
    KR840004657A|1984-10-22|Arrangement method of electrode for electric arc
    US2889530A|1959-06-02|Spring brush for rotating parts
    SU951510A1|1982-08-15|Brush assembly for electric machines
    US5359167A|1994-10-25|Whip for a high tension section switch
    EP0192251A2|1986-08-27|Electrode of vacuum circuit breaker
    US2870324A|1959-01-20|Electric welding handle
    DE1910906A1|1970-02-26|Brush for electrical machines
    US2471480A|1949-05-31|Motor brush holder
    SU957291A1|1982-09-07|Contact device
    US2411060A|1946-11-12|Contact element
    US1597887A|1926-08-31|Current-collecting device
    US2470647A|1949-05-17|Armature construction for dynamoelectric machines
    同族专利:
    公开号 | 公开日
    SE433893B|1984-06-18|
    DD136079A5|1979-06-13|
    SE7800965L|1978-07-30|
    IT7819749D0|1978-01-27|
    GB1595831A|1981-08-19|
    DE2703759A1|1978-08-03|
    JPS5396472A|1978-08-23|
    AU510691B2|1980-07-10|
    AU3231278A|1979-07-19|
    IT1091824B|1985-07-06|
    FR2379180B1|1983-06-24|
    FR2379180A1|1978-08-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1507566A|1920-09-27|1924-09-09|Vincent G Apple|Commutator brush and method of making it|
    US1703191A|1925-04-14|1929-02-26|Delcoremy Corp|Dynamo brush|
    US2019065A|1934-01-31|1935-10-29|Darroch Gourley|Dynamo electric machine commutator brush with integral shunt|
    FR897936A|1942-09-15|1945-04-05|Process for making a durable, electrically conductive junction of porous conductors, in particular of carbon, either with each other or with metallic conductors|
    GB1421534A|1972-03-30|1976-01-21|Nat Res Dev|Electrical brushes|
    DE2316796A1|1973-04-04|1974-10-17|Carbone Ag|COAL BRUSH|JPS568081U|1979-06-29|1981-01-23|
    US4337407A|1980-04-29|1982-06-29|Westinghouse Electric Corp.|Insulated strand brushes|
    CA1233210A|1981-12-17|1988-02-23|Howard L. Jacobs|Rip detecting antenna|
    US4518648A|1983-03-10|1985-05-21|Alps Electric Co., Ltd.|Sheet material and production method thereof|
    JPS60109112A|1983-11-17|1985-06-14|Hitachi Chemical Co Ltd|Contactor|
    JP3038859B2|1989-09-29|2000-05-08|ジェイエスアール株式会社|Anisotropic conductive sheet|
    US5387832A|1991-04-25|1995-02-07|Tokyo Electric Co., Ltd.|Brush and commutator motor having brush device using the same|
    DE19929686A1|1999-06-28|2001-01-25|Christian Felber|Brush ring for electric motor e.g. for machine tools, has current-conducting contact element consisting of fine, current-conducting fibres, preferably carbon fibres, fixed in current-conducting bearer element|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19772703759|DE2703759A1|1977-01-29|1977-01-29|CONTACT BODY FOR USE IN AN ELECTRICAL CIRCUIT|
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