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    ELECTRIC BRUSH
    12.
    发明专利
    ELECTRIC BRUSH 失效

    公开(公告)号：JPH10134921A

    公开(公告)日：1998-05-22

    申请号：JP29261696

    申请日：1996-11-05

    Applicant: DENSO CORP

    Inventor： TANIGUCHI KAZUMASA ,  MURAKAMI YOICHI

    IPC: H01R39/20 ,  H01R39/26 ,  H02K13/00

    Abstract: PROBLEM TO BE SOLVED: To smoothen the slide between a brush and a commutator, and to lower the brush noise by including the material for generating chemical species to be adsorbed to graphite in an electric brush, which is mainly composed of graphite, copper powder and binder. SOLUTION: As a material for generating a chemical species to be adsorbed to graphite, phenol resin and magnesium hydroxide are desirable. Phenol resin is used as a binder, and the phenol resin exists in the electric brush at 5-50wt% in relation to graphite at 100wt%. Magnesium hydroxide having mean granular diameter at 0.1 100μm is desirably used, and it desirably exists at 0.1-10wt%. Gas is generated from phenol resin and water is generated from magnesium hydroxide by the heating due to the sliding between the electric brush and the commutator. These gas and water work as adsorption water molecular, and they are adsorbed to active carbon atom in an end surface of the graphite so as to make the connection hard between the brush and the commutator.

    Electromagnetic clutch and method for manufacturing the same
    13.
    发明专利
    Electromagnetic clutch and method for manufacturing the same 审中-公开
    电磁离合器及其制造方法

    公开(公告)号：JP2013100862A

    公开(公告)日：2013-05-23

    申请号：JP2011244675

    申请日：2011-11-08

    Applicant: Denso Corp ,  株式会社デンソー

    Inventor： SAKURABA SHIGEYOSHI ,  TABUCHI YASUO ,  MURAKAMI YOICHI

    IPC: F16D27/112

    CPC classification number: F16D27/112 ,  F16D13/76 ,  F16D2027/007 ,  F16D2027/008 ,  F16D2300/10 ,  Y10T29/49611

    Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic clutch having improved transmission torque by means of a low-cost method, and a method for manufacturing the clutch.SOLUTION: An electromagnetic clutch (10) includes an electromagnetic coil (18), a rotor (16) that is rotary driven by an external drive source, an armature (12) attracted to the rotor (16) by magnetic force of the electromagnetic coil (18), and a hub structure (11); and the clutch transmits or shuts off power by exciting the electromagnetic coil (18) to attract the friction surface (12a) of the armature (12) to the friction surface (16a) of the rotor (16) and by demagnetizing the electromagnetic coil (18) to separate the armature (12) from the rotor (16). The friction surface (16a) of the rotor (16) and/or the friction surface (12a) of the armature (12) have a rugged surface formed thereon having surface roughness Rz of 10 μm or more and hardness of 4 GPa or less.

    Abstract translation: 要解决的问题：通过低成本方法提供具有改进的传动扭矩的电磁离合器以及用于制造离合器的方法。 解决方案：电磁离合器（10）包括电磁线圈（18），由外部驱动源旋转驱动的转子（16），通过磁力吸引到转子（16）的电枢（12） 电磁线圈（18）和轮毂结构（11）; 离合器通过激励电磁线圈（18）将电枢（12）的摩擦面（12a）吸引到转子（16）的摩擦面（16a）并通过使电磁线圈 以使电枢（12）与转子（16）分离。 转子（16）的摩擦面（16a）和/或电枢（12）的摩擦面（12a）具有形成在其上的粗糙表面，其表面粗糙度Rz为10μm以上，硬度为4GPa以下。 版权所有（C）2013，JPO＆INPIT

    SLIDE TYPE DETECTOR
    17.
    发明专利
    SLIDE TYPE DETECTOR 失效

    公开(公告)号：JP2001108403A

    公开(公告)日：2001-04-20

    申请号：JP28720599

    申请日：1999-10-07

    Applicant: DENSO CORP

    Inventor： TSUDA SHINJI ,  YASUDA ATSUSHI ,  MURAKAMI YOICHI

    IPC: H01C10/30 ,  G01B7/00 ,  G01B7/30 ,  G01D5/165 ,  G01F23/36 ,  H01H35/18

    Abstract: PROBLEM TO BE SOLVED: To form at least either of a plurality of strips of electrodes and the contact of a slider which slides along the surfaces of those electrodes by using a carbon material. SOLUTION: A plurality of stripes of electrodes 50 extended from a resistance layer 40 and the contact 62 of a slider 60 coming into slide contact with the surfaces of the electrodes 50 are formed of carbon materials.

    CARBON BRUSH FOR ELECTRIC ROTATING MACHINE
    18.
    发明专利
    CARBON BRUSH FOR ELECTRIC ROTATING MACHINE 失效

    公开(公告)号：JPH1098855A

    公开(公告)日：1998-04-14

    申请号：JP27180396

    申请日：1996-09-20

    Applicant: DENSO CORP

    Inventor： MURAKAMI YOICHI ,  SATO YOSHIO ,  IBATA KOICHI

    IPC: H01R39/20 ,  H01R39/26 ,  H02K13/00

    Abstract: PROBLEM TO BE SOLVED: To suppress contact potential drop with a ring while enhancing durability by adding an additive having Mohs hardness in a specified range to a carbon brush. SOLUTION: A carbon brush sliding on a slip ring or a commutator principally comprising copper is formed by adding an additive having Mohs hardness in the range of 4-5 to a principal component of graphite. Preferably, potassium titanate, calcium fluoride, zinc oxide or barium fluoride is employed as the additive. Furthermore, whisker is preferably employed as the additive and potassium titanate whisker is employed more preferably. Content of such an additive is preferably set in the range of 0.05-5wt.% because the contact voltage drop increases significantly as shown in the Fig. while accelerating abrasion of the carbon brush and the ring when the content exceeds 5wt.%. According to the arrangement, the contact voltage drop can be suppressed while reducing abrasion of the carbon brush and the ring.

    Carbon brush
    19.
    发明专利
    Carbon brush 审中-公开
    碳刷

    公开(公告)号：JP2008043028A

    公开(公告)日：2008-02-21

    申请号：JP2006212830

    申请日：2006-08-04

    Applicant: Denso Corp ,  Toraisu Kk ,  トライス株式会社 ,  株式会社デンソー

    Inventor： SAKAURA YOICHI ,  NAKAGAWA SHINYA ,  NISHIO MAKOTO ,  HAMAMATSU HIROTAKE ,  MURAKAMI YOICHI ,  HONPO RYOICHI ,  KIYOSE KENZO

    IPC: H02K13/00 ,  H01R39/20 ,  H01R39/26

    Abstract: PROBLEM TO BE SOLVED: To add 5 to 30 wt.% of a fibriform potassium titanate or montmorillonite to a carbon brush so as to solve the problems of the unevenness and abrasion of the surface of a commutator due to commutation sparks, between the carbon and the commutator of a fuel ejection pump.
    SOLUTION: An abrasive having lower rigidity, which consists at least either a montmorillonite having an average second particle diameter of 0.1 to 1 μm of the brush, comprising mainly of carbon or of potassium titanate, having an average value of a fiber width of 0.2 to 0.6 μm, is added to the carbon brush, causing the surface of the commutator to be smoothed; while slightly suppressing the abrasion effect on the carbon commutator, thereby suppressing the occurrence of the commutation sparks. Accordingly, durability of the fuel ejection pump commutator is increased.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：向碳刷中加入5〜30重量％的纤维状钛酸钾或蒙脱石，以解决换向火花引起的换向器表面的不均匀性和磨损问题， 燃料喷射泵的碳和换向器。 解决方案：具有较低刚性的磨料，其至少包括平均第二粒径为0.1至1μm的刷子的蒙脱石，主要由碳或钛酸钾组成，平均值为纤维宽度 0.2〜0.6μm，加入到碳刷中，使整流子的表面平滑化; 同时轻微地抑制对碳换向器的磨损作用，从而抑制换向火花的发生。 因此，燃料喷射泵换向器的耐久性提高。 版权所有（C）2008，JPO＆INPIT

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